========================================================================= Date: Wed, 1 Jul 1998 11:56:22 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: David Sewell Subject: New symbol to replace "BP"? Mime-Version: 1.0 Content-Type: multipart/mixed; boundary=3V7upXqbjpZ4EhLz --3V7upXqbjpZ4EhLz Content-Type: text/plain; charset=us-ascii Dear radiocarbon folk, We've just sent the completed Groningen Radiocarbon Conference issues to the printer (more about that in a later message), and preparatory to converting the contents/abstracts to a WWW-compatible format I've been wrestling with the usual problems of how to handle special characters like Greek letters and Eastern European diacritics. That has led me to think more seriously about something I suggested a bit facetiously to Wim Mook while we were working on the Proceedings, namely developing a special, unambiguous symbol to replace "BP" in reporting conventional radiocarbon ages. In principle the 14C community agreed during the Trondheim conference in 1985 on "BP" as the symbol to be used for this purpose, but in practice other conventions are still in use (e.g., ANTIQUITY uses "b.p."), and there is still a good bit of confusion arising from the fact that "BP" is understood as or used as a mere abbreviation for "before present" in some disciplines. If the radiocarbon community were to adopt a single, arbitrary symbol to represent "conventional radiocarbon age", it should reduce ambiguity and the chance of confusion with other naming/dating conventions. Consider, for example, a stylized "BP" glyph made by reversing the B and combining it with the P (see the attachment to this message, bp.gif). The big problem, of course, is that such a character doesn't exist (to my knowledge) in any standard symbol set. However, in principle it is entirely possible to add a glyph to the set recognized in ISO documentation--an agency called the Association for Font Information Interchange is authorized by the ISO to register new glyphs, and can do so when requested by an organization. Once that happens, the glyph can be incorporated in special computer fonts and added to the Unicode character set that the World Wide Web already uses for displaying non-Latin languages and symbols. I'm curious to know whether anyone thinks it might be worth pursuing an idea like this -- or whether habit, tradition, or sheer inertia would make it unworkable. David S. -- David Sewell, Acting Managing Editor RADIOCARBON: An International Journal of Cosmogenic Isotope Research Department of Geosciences, The University of Arizona 4717 E. Ft. Lowell Rd., Tucson, Arizona 85712 USA Telephone: +1 520 881 0857 Fax: +1 520 881 0554 Email: dsew@radiocarbon.org / dsew@packrat.aml.arizona.edu Web site: http://radiocarbon.org/ --3V7upXqbjpZ4EhLz Content-Type: image/gif Content-Transfer-Encoding: base64 Content-Description: example BP glyph Content-Disposition: attachment; filename="bp.gif" R0lGODlhOQAxAIAAAAAAAP///ywAAAAAOQAxAEACx4yPqcvtD6IEL0zabqz28uNx2tdp5rmg UEiWW/uZ8QTX9o3nOiLPkshyjIC/ypDR8712IBosyIxKp9TV6Yo9KotGpxCaAn+5VnLY2zVn xGd0GzNWv+WKELaV3E61eiq/DFflknUnaHiImKg4R3i148gYiff3BrgUdwlIRNfkprmZmUC5 xinKZjCK5Km6ynNa12oa6/raGQpbK9uYOnhLyrubSys86MeL63tzXCm1jBz4SDwMHT3LvOeM ao0DybrNFFy4OE7eUgAAOw== --3V7upXqbjpZ4EhLz-- ========================================================================= Date: Wed, 1 Jul 1998 12:00:32 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: David Sewell Subject: Re: New symbol to replace "BP"? In-Reply-To: <199807011856.LAA17692@listserv.arizona.edu>; from David Sewell on Wed, Jul 01, 1998 at 11:56:22AM -0700 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii P.S. The attached "BP" graphic may not display properly within your email reader; you can see it also at http://www.radiocarbon.org/bp.html DS ========================================================================= Date: Wed, 1 Jul 1998 15:27:50 EDT Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: "Douglas S. Frink" Subject: Re: New symbol to replace "BP"? Mime-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit OK, but I'm struck with the question, Why? Douglas ========================================================================= Date: Wed, 1 Jul 1998 12:52:57 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Owen Davis Subject: Re: New symbol to replace "BP"? Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" All, I think the "BP glyph" is an excellent idea that would be fast and clear. I hope other journals would follow RADIOCARBON's lead in adopting this symbol. Owen. At 11:56 AM 7/1/98 -0700, you wrote: >Dear radiocarbon folk, > >We've just sent the completed Groningen Radiocarbon Conference issues to - - - snip - - - Owen K. Davis, Professor 520 621-7953 Department of Geosciences FAX 621-2672 University of Arizona palynolo@geo.arizona.edu Tucson, Arizona 85721 http://geo.arizona.edu/palynology http://geo.arizona.edu/Antevs/surficial.html ========================================================================= Date: Wed, 1 Jul 1998 14:18:27 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Timothy Jull Subject: Re: New symbol to replace "BP"? In-Reply-To: <1b3c7e9d.359a8db7@aol.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Quite so, Why indeed. Tim On Wed, 1 Jul 1998, Douglas S. Frink wrote: > OK, but I'm struck with the question, Why? > Douglas > -------------------------------------------------------------- A. J. Timothy Jull tel. (520) 621-6816 NSF Arizona AMS Facility, fax. (520) 621-9619 Physics Building, University of Arizona, Tucson, AZ 85721 University of Arizona AMS Lab Web-Page: http://www.physics.arizona.edu/ams/index.html ========================================================================= Date: Thu, 2 Jul 1998 09:50:51 +1200 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: "SPARKS, RODGER" Subject: New symbol to replace BP? - Reply David, I am inclined to agree with something along the lines you propose, because it is in line with a particular hobby-horse of mine. I have long believed that, for historical reasons, radiocarbon terminology has been cursed by a fixation on measuring ages, whereas what we measure is not an age at all but an isotopic ratio, regardless of the technology used. At Rafter we have adopted the practise of referring to the conventional radiocarbon age (Stuiver & Polach etc.) by the acronym CRA to try to reduce the emphasis on time measurement, but we are still stuck with the units of "years BP". Replacing this by a new name or symbol is greatly to be encouraged, in my view, but any replacement needs to be typographically simple, ie accessible to standard wordprocessing packages and easy to write. This is a real issue. The CRA is a convenient expression of radiocarbon content that gives at least an indication of chronological age, where that is appropriate. But I find that I spend a lot of time explaining to less experienced radiocarbon users why it is not the "true" age, and why a negative CRA is a perfectly legitimate way of expressing the result of a radiocarbon measurement ("how can the age be negative?"). A new terminology that removes the confusion between "conventional age" and "calendar age", BP and bp, and why is "present" 1950 seems highly desirable. Rodger Sparks ========================================================================= Date: Wed, 1 Jul 1998 15:29:28 -0700 Reply-To: Timothy Jull Sender: Radiocarbon Mailing List From: Timothy Jull Subject: Re: New symbol to replace BP? - Reply In-Reply-To: <9807020952.459aaf77.GNS@wpo.gns.cri.nz> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Dear David et al., I agree there is a need to remove confusion about "conventional radiocarbon age" and calibrated ages, but I don't like the "glyph". In any case, if you are reporting a result to someone who does not understand the terminology, say you use CRA as suggested by Rodger S., you are STILL going to have to explain it, glyph or not. You cannot assume that the non-cognescenti are going to have the faintest idea what this thing means. "years BP" is accepted terminology and retraining a whole generation of archaeologists and other users will be necessary. Many people use and discuss these dates besides scientists which a cursory surfing of the internet would show. It is necessary to explain results frequently and this will not change. Here is an example of a typical explanation: The results are quoted as a fraction of modern (1950AD) carbon, and radiocarbon age in years before present. The values are quoted corrected to -25 parts per mil for 13C, which indicates the value of the stable-isotope ratio of 13C/12C deviation from a known standard, in parts per thousand (). Most organic materials are typically about -25 parts per mil. This is only a small correction to the age, a correction of 1 part per mil is only 8 years (in this AMS case - editorial addition). The radiocarbon age is the conventional uncalibrated 14C age and is quoted in years "before 1950AD". This is an approximate estimate of age. As the radiocarbon content of the atmosphere fluctuates with time, it is necessary to calibrated this value against known material. I have also quoted the calibrated age, where we have compared the radiocarbon content to tree rings of known age. This is an absolute estimate of age and is quoted for 68% and 95% confidence limits. Tim -------------------------------------------------------------- A. J. Timothy Jull tel. (520) 621-6816 NSF Arizona AMS Facility, fax. (520) 621-9619 Physics Building, University of Arizona, Tucson, AZ 85721 University of Arizona AMS Lab Web-Page: http://www.physics.arizona.edu/ams/index.html ========================================================================= Date: Wed, 1 Jul 1998 17:45:32 -0700 Reply-To: along@geo.Arizona.EDU Sender: Radiocarbon Mailing List From: Austin Long Organization: Geosciences / University of Arizona Subject: Re: New symbol to replace "BP"? MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit David, I assume this is another illustration of your poised and subtle sense of humor. Having just completed the weighty Groningen volume, this was a great release of stress and tension. Somewhat along the line of the musician formerly known as Prince, though he has carried it too far. Where did you find it? Evidently not in Word 97. Austin David Sewell wrote: > P.S. The attached "BP" graphic may not display properly within your > email reader; you can see it also at > > http://www.radiocarbon.org/bp.html > > DS ========================================================================= Date: Thu, 2 Jul 1998 16:17:38 +1200 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: "SPARKS, RODGER" Subject: New symbol to replace BP? - Reply Well, this is good fun, but I don't think it quite measures up to the Great Plastic Bag Controversy of '96. That was one for connoisseurs. Rodger Sparks ========================================================================= Date: Thu, 2 Jul 1998 09:15:21 ARG Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Lenton & S Subject: Re: New symbol to replace "BP"? In-Reply-To: <19980701115622.A25582@packrat.aml.arizona.edu>; from David Sewell at Jul 01, 98 01:56 AM Hello Dave and listmembers: Really, I don't understand the reasons to change the expression BP, the majority who read reports with radiocarbon ages are archaeologist or antropologist who understand what BP means. If you are thinking in other (wider) public, why don't think in translate the age to BC (before Christ) age, that is more simple to understand? In other way, I think to create a new symbol is an unnecesary mechanism. If you want other symbol why not try with one more simple font like the greek letter "beta" "á" áP (in DOS system ALT+225 and in windows system ALT+0223). It's present in all system and don't require none technical-administrative procedure. Good Luck! Jorge jsosa@filo.uba.ar ***** Comienzo del mensaje agregado ***** Remitente: David Sewell A: C14-L@LISTSERV.ARIZONA.EDU Fecha: Mie, 01 Jul 1998 01:56:22 ARG Recibido: Jue, 02 Jul 1998 08:46:16 ARG Tema: New symbol to replace "BP"? --3V7upXqbjpZ4EhLz Content-Type: text/plain; charset=us-ascii Dear radiocarbon folk, We've just sent the completed Groningen Radiocarbon Conference issues to the printer (more about that in a later message), and preparatory to converting the contents/abstracts to a WWW-compatible format I've been wrestling with the usual problems of how to handle special characters like Greek letters and Eastern European diacritics. That has led me to think more seriously about something I suggested a bit facetiously to Wim Mook while we were working on the Proceedings, namely developing a special, unambiguous symbol to replace "BP" in reporting conventional radiocarbon ages. In principle the 14C community agreed during the Trondheim conference in 1985 on "BP" as the symbol to be used for this purpose, but in practice other conventions are still in use (e.g., ANTIQUITY uses "b.p."), and there is still a good bit of confusion arising from the fact that "BP" is understood as or used as a mere abbreviation for "before present" in some disciplines. If the radiocarbon community were to adopt a single, arbitrary symbol to represent "conventional radiocarbon age", it should reduce ambiguity and the chance of confusion with other naming/dating conventions. Consider, for example, a stylized "BP" glyph made by reversing the B and combining it with the P (see the attachment to this message, bp.gif). The big problem, of course, is that such a character doesn't exist (to my knowledge) in any standard symbol set. However, in principle it is entirely possible to add a glyph to the set recognized in ISO documentation--an agency called the Association for Font Information Interchange is authorized by the ISO to register new glyphs, and can do so when requested by an organization. Once that happens, the glyph can be incorporated in special computer fonts and added to the Unicode character set that the World Wide Web already uses for displaying non-Latin languages and symbols. I'm curious to know whether anyone thinks it might be worth pursuing an idea like this -- or whether habit, tradition, or sheer inertia would make it unworkable. David S. -- ========================================================================= Date: Thu, 2 Jul 1998 09:55:16 +0100 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Steve Reese Subject: BP Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Many thanks to David Sewells for his suggestion, unfortunately it seems he became so engrossed in the Grvningen issue of Radiocarbon that he seems to have lost EXACTLY 3 months. But then maybe he just couldn't wait another 9 months to reveal his revelation. In any case this phenomenon seems to also beg a new international conventional abbreviation. I am not sure whether to label it "3maafd98" or "9mbafd99" (I suggest we keep to ASCII). Would anyone like to join in on a discussion of this important matter? By the way "3maafd98" stands for "three months after April fools day 1998" Steve Reese 14-C Lab Bern ========================================================================= Date: Thu, 2 Jul 1998 11:10:18 +0000 Reply-To: christopher.ramsey@archaeology-research.oxford.ac.uk Sender: Radiocarbon Mailing List Comments: Authenticated sender is From: Christopher Ramsey Subject: Re: New symbol to replace "BP"? The fact that this symbol could not be emailed except as a gif file underlines the main problem with it. If we need a new symbol (and it is true that BP does get used for non-radiocarbon dates) why not just RYBP (Radiocarbon Years Before Present)? I agree it is not so much fun though - talking of dates I thought April 1st was 3 months ago! Christopher Ramsey ***************************************************** Dr. Christopher Bronk Ramsey (Senior Physicist) Radiocarbon Accelerator Unit Research Lab for Archaeology and the History of Art 6 Keble Road Oxford OX1 3QJ Tel. +44 1865 273939 Fax. +44 1865 273932 Email christopher.ramsey@rlaha.ox.ac.uk or orau@rlaha.ox.ac.uk WWW http://www.rlaha.ox.ac.uk/ ***************************************************** ========================================================================= Date: Thu, 2 Jul 1998 10:19:12 -0500 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: "Eric C. Grimm" Subject: Re: New symbol to replace BP? - Reply Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" >Somewhat along the line of the musician formerly known as Prince,... So instead of "5000 radiocarbon years BP," I can write "5000 formerly known as radiocarbon years BP"? Oooohhh I like it! ******************************************************************* Dr. Eric C. Grimm Office: 217-785-4846 Illinois State Museum Database: 217-524-0493 Research and Collections Center Fax: 217-785-2857 1011 East Ash Street E-mail: grimm@museum.state.il.us Springfield, IL 62703 USA 39d,46m,48s N, 89d,38m,34s W ******************************************************************* ========================================================================= Date: Thu, 2 Jul 1998 10:55:01 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: David Sewell Subject: Re: New symbol to replace "BP"? [long] In-Reply-To: <199807021544.IAA44284@listserv.arizona.edu>; from Lenton & S on Thu, Jul 02, 1998 at 09:15:21AM +0000 Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit On Thu, Jul 02, 1998 at 09:15:21AM +0000, Lenton & S wrote: > In other way, I think to create a new symbol is an unnecesary mechanism. > If you want other symbol why not try with one more simple > font like the greek letter "beta" "á" áP (in DOS system ALT+225 and > in windows system ALT+0223). It's present in all system and > don't require none technical-administrative procedure. Actually, that character is the German "sharp" or double s, not a Greek beta. When we get manuscripts that refer to "ß-counting" we have to replace all those references with a real beta symbol. Okay, I'm resigned to the fact that everybody is making fun of my reverse-BP glyph. (Actually I think it looks more like something you'd see branded on a cow than Prince's unpronounceable name.) And Tim Jull's point is well taken that careful explanation of the meaning of a reported age is going to be necessary no matter how the measurements are expressed. Still, I'm basically serious about the need to address the data coding conventions we use as a way of planning for the future. For the generations of scientists and researchers that will follow ours, reported data and the scientific literature in general is going to be comparatively worthless unless it can be searched and retrieved digitally. And it's a lot easier to ensure uniformity if conventions are planned early rather than trying to retrofit them. (Case in point, I imagine that if the real push for standardized data reporting had begun in the 1960s rather than the 1980s we would *have* an International Radiocarbon Database today.) What would make more sense than my glyph, probably, would be a single character that when printed would look like a small-caps BP but that would be a single symbol in the underlying representation. Analogous to this would be the "TM" trademark symbol that is part of the Windows character set and that is a named character entity ("™") in the HTML 4.0 standard. When you have a unique symbol like that, it's a lot easier to do search-and-retrieve for occurrences. Another approach that would not require any new printed symbols would be to develop a tagging scheme for representing numeric data. People like Chris Ramsey have done this sort of thing in very sophisticated ways in the context of structured databases (e.g. the Chronological Query Language), but the fact is that the distinction between "text" and "database" is disappearing as publication goes digital. (The language of the Web, HTML, is a subset of Standard Generalized Markup Language or SGML, whose whole purpose is to create a language for document structure that enables the widest possible variety of transformation and retrieval of material in documents.) On that model, a segment of printed text like The error-weighted mean value for charcoal is 620 ± 13. At 1 sigma, the shell mean data was cal AD 1338-1385 ... might have as its underlying reprsentation something like The error-weighted mean value for charcoal is 620 13. At 1 sigma, the shell mean data was 1338-1385 ... Yes, it's ugly as sin. But if one day you decide you want to retrieve all of the conventional dates on Amphibola shells from a couple dozen online articles, you'll be thankful for it. Is any of this worth the bother? That's for the research community to say. Groups with more narrowly defined disciplinary boundaries like physicists and mathematicians have not surprisingly been very active in developing things like SGML (remember, HTML and the World Wide Web was invented at CERN!) and planning for future concerns in archiving and retrieval. Anyway, time permitting, if there's enough interest in these issues to form a working group, perhaps with an eye toward a presentation panel at the Jerusalem conference in 2000, I'd volunteer to coordinate the discussion. DS -- David Sewell, Acting Managing Editor RADIOCARBON: An International Journal of Cosmogenic Isotope Research Department of Geosciences, The University of Arizona 4717 E. Ft. Lowell Rd., Tucson, Arizona 85712 USA Telephone: +1 520 881 0857 Fax: +1 520 881 0554 Email: dsew@radiocarbon.org / dsew@packrat.aml.arizona.edu Web site: http://radiocarbon.org/ ========================================================================= Date: Thu, 2 Jul 1998 14:17:13 -0400 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Karl von Reden Organization: Woods Hole Oceanographic Institution Subject: ???? MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------msE2EC4F55D1BD90181A184F56" This is a cryptographically signed message in MIME format. --------------msE2EC4F55D1BD90181A184F56 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit I'm sure everybody is waiting for this: Why not use "Þ" (ALT 0222) ??? I always wondered what language that comes from. Anyway it's there, it's not GIF, it's only one character, and it (too) looks like b and p in one. Karl@NOSAMS --------------msE2EC4F55D1BD90181A184F56 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIGuwYJKoZIhvcNAQcCoIIGrDCCBqgCAQExCzAJBgUrDgMCGgUAMAsGCSqGSIb3DQEHAaCC BNgwggKAMIIB6aADAgECAgEfMA0GCSqGSIb3DQEBBAUAMEwxCzAJBgNVBAYTAlVTMQ0wCwYD VQQKEwRXSE9JMQwwCgYDVQQLEwNDSVMxIDAeBgNVBAMTF1dIT0kgQ2VydGlmaWNhdGUgU2Vy dmVyMB4XDTk4MDIyNTE5MDY1N1oXDTk4MDgyNDE5MDY1N1owgYcxCzAJBgNVBAYTAlVTMQ0w CwYDVQQKEwRXSE9JMQ8wDQYDVQQLEwZQZW9wbGUxGTAXBgoJkiaJk/IsZAEBEwlrdm9ucmVk ZW4xGjAYBgNVBAMTEUthcmwgRi4gVm9uIFJlZGVuMSEwHwYJKoZIhvcNAQkBFhJrdm9ucmVk ZW5Ad2hvaS5lZHUwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAKlqkTsW1E3H5uC4kh8c lIYtofmmbg9fXSmlr+KriVcddSbx65ebbgi/CL+yuJomgH+tM13uHm+Q0KpyvgfiY1ZqgJPC 0VJdd/UAubfiZKGwmzNV2Rc6ZrrgLuWyt1Lp3sMxZeUMouu70Kk/jNmoF0sGYsdPZY9/+uR+ Ur2Ka6LrAgMBAAGjNjA0MBEGCWCGSAGG+EIBAQQEAwIAoDAfBgNVHSMEGDAWgBRTqloROp9A UxokL7NdP5rDWCMI0zANBgkqhkiG9w0BAQQFAAOBgQAXi0PsDNg09yN1x+Da82DiA6lvx4m1 qY9VcdpwyFtdoJqmEWloCYFvBSMVnkIoRYUNejqR96e6lEBLQj7/qv5WVOctRS97SHwbVwFG TTz/j69ia98BAGEtu9/ehfJ0YtFfeT9sE3u9Ru5Rv8stedvvBdqIkqLu+HEkeBBOvo9EcjCC AlAwggG5oAMCAQICAQEwDQYJKoZIhvcNAQEEBQAwTDELMAkGA1UEBhMCVVMxDTALBgNVBAoT BFdIT0kxDDAKBgNVBAsTA0NJUzEgMB4GA1UEAxMXV0hPSSBDZXJ0aWZpY2F0ZSBTZXJ2ZXIw HhcNOTcxMDIwMTE0NjU4WhcNOTkxMDIwMTE0NjU4WjBMMQswCQYDVQQGEwJVUzENMAsGA1UE ChMEV0hPSTEMMAoGA1UECxMDQ0lTMSAwHgYDVQQDExdXSE9JIENlcnRpZmljYXRlIFNlcnZl cjCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAsaisWnjfwjgdiuTAt+K97R5ojwc6QOlY zGSPYB9UsKUJMM0UNYSXWFjWjKHRI3twlcxXLgIAWn4nIWj8B+SC1DeMH0HUxuhyqbX4BMqh Ifelbw5fuEbWm/SqFN67zLFcXwfY9tN006o8xeMNaG8Z+3SRYwxfHpudiF/yb2uor4ECAwEA AaNCMEAwHQYDVR0OBBYEFFOqWhE6n0BTGiQvs10/msNYIwjTMB8GA1UdIwQYMBaAFFOqWhE6 n0BTGiQvs10/msNYIwjTMA0GCSqGSIb3DQEBBAUAA4GBACjh57w/LJ5j7zKGxFQ3AEA3Pkhf sqFXGOzhtNdYEDdpV6mlyHmMjgw1YCu/rncVeOuYIww8j+j9FzWdUJ/HI2YldT+b8bCCrsLo BBbmsErauIC60V6ktkZ0zzAz6BhcLVaksG3adP9yP1GjihLsmt9sQfmEW3BD4pXy/Wk0BXQm MYIBqzCCAacCAQEwUTBMMQswCQYDVQQGEwJVUzENMAsGA1UEChMEV0hPSTEMMAoGA1UECxMD Q0lTMSAwHgYDVQQDExdXSE9JIENlcnRpZmljYXRlIFNlcnZlcgIBHzAJBgUrDgMCGgUAoIGx MBgGCSqGSIb3DQEJAzELBgkqhkiG9w0BBwEwHAYJKoZIhvcNAQkFMQ8XDTk4MDcwMjE4MTcx NVowIwYJKoZIhvcNAQkEMRYEFD06WYQAmC5LXRo/Qz/VxdNwiLabMFIGCSqGSIb3DQEJDzFF MEMwCgYIKoZIhvcNAwcwDgYIKoZIhvcNAwICAgCAMAcGBSsOAwIHMA0GCCqGSIb3DQMCAgFA MA0GCCqGSIb3DQMCAgEoMA0GCSqGSIb3DQEBAQUABIGAFUo4jeVoSrrS2z+ZIGZ5UY/PqKt3 YWTYB3Td/V6nhhYP2Foh8wJdpcf6/RodXX6FtKChkRlaJLMLL9ivBmkbPE8rqMxEfUiVy93p suDnMN7tE60b1SeqaeTuVSrmW05HUItfpaSnMqzTio1hBw+XsKkzNYAUESCNGgh5nwfUBM8= --------------msE2EC4F55D1BD90181A184F56-- ========================================================================= Date: Sat, 4 Jul 1998 11:27:07 +0200 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Karim Gernigon Subject: BP glyph Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" I just don't understand why the problem is with BP, which, in my mind, means before present (always uncalibrated), and not with BC or bc, which sometimes means a calibrated date and sometimes not. If I dont't see cal. BC or cal.bc, I never know if the author is speaking of a calibrated date or not. Personally I prefer to use BC when the date is uncalibrated because BP (in big letters) is used for uncalibrated dates, and so bc for calibrated dates but I think more people (and C14 laboratory members) use those glyphs the other way. Karim GERNIGON UMR 56-08 UTAH - Prehistoire tel : (33) 561-50-37-17 Maison de la Recherche fax : (33) 561-50-36-98 Universite Toulouse-le Mirail 31058 Toulouse Cedex 5 France e-mail : gernigon@univ-tlse2.fr ========================================================================= Date: Sat, 4 Jul 1998 10:01:36 -0700 Reply-To: artifact@pacbell.net Sender: Radiocarbon Mailing List From: ARTIFACT INK Organization: Pacific Bell Internet Services Subject: Re: BP glyph MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I always understood it as B.P. = 1950, when Libby developed radiocarbon dating? Karim Gernigon wrote: > I just don't understand why the problem is with BP, which, in my mind, means > before present (always uncalibrated), and not with BC or bc, which sometimes > means a calibrated date and sometimes not. > > > Karim GERNIGON > UMR 56-08 > UTAH - Prehistoire tel : (33) 561-50-37-17 > Maison de la Recherche fax : (33) 561-50-36-98 > Universite Toulouse-le Mirail > 31058 Toulouse Cedex 5 > France e-mail : gernigon@univ-tlse2.fr -- Brad Holderman ARTIFACT INK - Illustration for Archaeological Science ICQ #3174557 ========================================================================= Date: Mon, 6 Jul 1998 12:06:27 +0000 Reply-To: kite@geo.wvu.edu Sender: Radiocarbon Mailing List Comments: Authenticated sender is From: Steve Kite Subject: Re: New symbol to replace "BP"? MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT C-14 list I fail to see any advantage of converting from an English Language abbreviation (B.P.) to an obscure symbol based on the English language abbreviation. Moreover, why change now after 5 decades of literature has been produced? Let's keep our language as straight-forward as possible, lest we set up unnecessary barriers for those uninitated in our jargon! Steve Kite J. Steven Kite West Virginia University Department of Geology & Geography 425 White Hall Morgantown WV 26506-6300 USA Phone: 304-293-5603 ext. 4330 FAX: 304-293-6522 ========================================================================= Date: Mon, 6 Jul 1998 14:36:51 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: David Sewell Subject: 16th Radiocarbon Conference contents/abstracts Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii The Contents and Abstracts of the Proceedings of the 16th International Radiocarbon Conference (Groningen, June 1997) are now available online at http://www.radiocarbon.org/. With 112 published papers totaling over 1000 pages, the editors decided to split the proceedings into two separate issues, "Methods" and "Applications". (Price for the two issues remains $50, as initially advertised.) The completed volume should be mailed from our printer's offices in mid-August. If you were a paid attendee at the Groningen conference you are already scheduled to receive the proceedings as part of your registration. The Conference issues will be #1 and #2 of RADIOCARBON Volume 40; issue #3 will be the forthcoming INTCAL98, aka the "New Calibration Issue", the third presentation of radiocarbon calibration curves to be edited by Minze Stuiver. (Previous calibration issues were published in 1986 and 1993.) Note that a subscription to Volume 40 will get you both the Groningen Proceedings and INTCAL98, and we immodestly suggest that the price of $55 for individual subscriptions is a steal. (Institutional subscription is $115.) -- David Sewell, Acting Managing Editor RADIOCARBON: An International Journal of Cosmogenic Isotope Research Department of Geosciences, The University of Arizona 4717 E. Ft. Lowell Rd., Tucson, Arizona 85712 USA Telephone: +1 520 881 0857 Fax: +1 520 881 0554 Email: dsew@radiocarbon.org / dsew@packrat.aml.arizona.edu Web site: http://radiocarbon.org/ ========================================================================= Date: Tue, 7 Jul 1998 09:00:48 EDT Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Irena Rybicki Subject: Re: New symbol to replace "BP"? Mime-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit If it's not broke, don't fix it. There are millions of abbreviations and terms out there that has often made me wonder what interesting drug the person was sampling when he/she came up with it. In other words, who cares? It's out there, let's live with it. ========================================================================= Date: Thu, 9 Jul 1998 15:23:13 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: David Sewell Subject: More dangers of BP Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Actually, I don't know that this can be blamed on confusion over what "before present" means, but it's a good example of the difficulty people seem to have with relative ages. The May 22 issue of SCIENCE has a letter from R.E. Taylor, Donna Kirner, John Southon and James Chatters on the dating of bone from "Kennewick Man", the skeleton found in Washington State that has been the object of dispute between local American Indian tribes and anthropologists. Taylor et al. note that "an age of 9300 years has been associated" with the skeleton based on first reports of the 14C dating (which was done at UC Riverside & Lawrence Livermore). This was based on calibration of the conventional age determined to be 8410 +/- 60 BP. However, they note that this date would reflect a significant reservoir effect if the diet of Kennewick Man was largely based on marine products. They estimate this effect at 530 +/- 150 yr, and therefore offer a corrected age for the remains of 7880 +/- 160 BP, corresponding to 8500-8950 cal BP (1 sigma) or 8340-9200 cal BP (2 sigma). Apparently the SCIENCE editor responsible for introducing the Letters section somehow reversed the math, because the sidebar at the top of the section reads, "An earlier radiocarbon date for Kennewick Man is presented". (In fact, Taylor et al.'s point is that he died ~500 yr *later* than the estimate of 9300 years that has been widely reported.) It will be interesting to see whether this error produces any "Kennewick Man older than thought!" notes in the popular press. (Does SCIENCE issue corrections for mistakes in sidebars?) DS -- David Sewell, Acting Managing Editor RADIOCARBON: An International Journal of Cosmogenic Isotope Research Department of Geosciences, The University of Arizona 4717 E. Ft. Lowell Rd., Tucson, Arizona 85712 USA Telephone: +1 520 881 0857 Fax: +1 520 881 0554 Email: dsew@radiocarbon.org / dsew@packrat.aml.arizona.edu Web site: http://radiocarbon.org/ ========================================================================= Date: Mon, 13 Jul 1998 09:30:24 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: David Sewell Subject: Carbon Cycle Changes at INQUA 15 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii [This session scheduled for the INQUA conference in South Africa next year still has some openings. Please respond to the email addresses given at the end of this forwarded message. --DS] ---- Begin forwarded message ----- S Y M P O S I U M "CARBON CYCLE CHANGES: PEAK GLACIAL VERSUS INTERGLACIAL CONDITIONS" INQUA COMMISSION ON CARBON/IGCP-404- : A SYMPOSIUM AT THE INQUA CONGRESS IN DURBAN, S.A. Tuesday 10th August 1999. This Symposium focuses on GLOBAL CARBON CYCLE CHANGES from glacial maxiumum to peak Interglacial, and vice-versa. For each of the main components of the carbon cycle a "state of the art" picture of the main reservoirs and fluxes of carbon in the biosphere will be presented, and case studies in key areas will be proposed on what we know about changes in the carbon cycle which occurred between the LGM and previous interglacial at 125 or the present interglacial at 8 Ky. Various speakers have already been booked (including reports from the Paleocarbon Commission working groups), but more speakers on any of these topics will be welcome. Please e-mail Jonathan Adams or Hugues Faure if you are interested in speaking at this symposium. (Exact titles and names of the speakers below are tentative and may be changed). (WG = speaker from the INQUA Working Group on each topic) SCHEDULE I- Carbon modeling and Quaternary Research (M.Bird/H.Faure/L.Francois) WG II - Weathering carbon flux (J-L.Probst.) WG III- Karst Processes and Carbon flux (Yuan Daoxian) WG/IGCP379 IV- Phytomass reservoir changes (J. Adams) WG QEN V - Soil and peat reservoir changes WG VI -Shelf Carbon (intertropical)(Australia/Indonesia) WG VII- Coral reefs carbon (or Emiliania bloom) (Y.or Z) WG VIII- Amazonia carbon reservoir changes (B.Turcq/) WG IX - Africa carbon reservoir and isotopic changes (D.Schwartz/T.Partridge/M.Fall) WG X - Boreal zone changes (A.Velichko)W.G.Eurasia/N.America. XI- Volcanic and Seismic/tectonic gas release) W.G. XII- Changing Global Carbon Cycle..(Glacial/Interglacial) (L.Francois/H.Faure). (There are currently 12 Presentations for the CARBON SYMPOSIUM, taking one full morning on August 10, 1999 : info on INQUA and the Congress are available from http://inqua.nlh.no, or email to faure@luminy.univ-mrs.fr and jonathan@elvis.esd.ornl.gov (use links below). Hugues Faure Jonathan Adams ========================================================================= Date: Tue, 14 Jul 1998 12:27:46 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Robert Finkel Subject: Position Posting Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" (I haven't noticed position announcements on this list before, so I hope this positn is appropriate.) Postdoctoral Fellow Position / 14C and Cosmogenic Nuclides. The Space Sciences Laboratory (SSL) at the University of California, Berkeley seeks applicants for two Postgraduate Research positions to work on applications of 14C and long-lived cosmogenic nuclides to studies of terrestrial and extraterrestrial materials. Opportunities exist in two areas: (1) Development of techniques for the extraction and purification of in-situ produced 14C in terrestrial and extraterrestrial materials. A strong background in analytical and physical chemistry as well as considerable laboratory experience in vacuum techniques and gas analyses, particularly CO2, is highly desirable. (2) Development and application of new techniques for using long-lived cosmogenic nuclides to date terrestrial materials for geological applications. A strong background in isotope geochemistry and nuclear chemistry is required, as is considerable laboratory experience. The fields of application include isotope geochemistry, earth surface processes, origin and history of extraterrestrial materials and particle fluxes in space. Requirements include a Ph.D. in chemistry, physics, geo- or cosmochemistry, or geology. Research locations will be the Space Sciences Laboratory at the University of California, Berkeley and the Lawrence Livermore National Laboratory. A complete curriculum vitae and names and addresses of three references should be sent to: Ms. Judy Jones Space Sciences Laboratory University of California Berkeley, CA 94720-7450 e-mail: kuni@ssl.berkeley.edu Closing date for applications is September 30, 1998. The University of California is an equal opportunity/affirmative action employer. Robert C. Finkel (925) 422-2044 Geoscience & Environmental Technology L-219 (925) 422-0208 (FAX) Lawrence Livermore National Laboratory rfinkel@llnl.gov Livermore, CA 94550 ========================================================================= Date: Wed, 15 Jul 1998 10:26:23 -0400 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Karl von Reden Organization: Woods Hole Oceanographic Institution Subject: Postdoc positions at NOSAMS Facility MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="------------E0C5EF32A61A068421B9FA13" This is a multi-part message in MIME format. --------------E0C5EF32A61A068421B9FA13 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit The posting below can be found on our home pagel: http://www.nosams.whoi.edu Postdoctoral Research Opportunities at the National Ocean Sciences Accelerator Mass Spectrometry Facility, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts. Applications are invited for two Postdoctoral Investigator positions at Woods Hole Oceanographic Institution. These positions are jointly funded by an NSF cooperative agreement with WHOI. They are one-year term positions, renewable up to a maximum of three years, and are available starting October 1, 1998. An experimental physicist with recent Ph.D is sought, to participate in microwave and sputter ion source developments for the NOSAMS Facility, located on the Woods Hole Quissett Campus. Relevant experience would include ECR and microwave techniques, ion beam optics, ion extraction from plasma, vacuum, viscous flow and high voltage techniques. Carbon ion beams are produced and analyzed from a variety of environmental samples, providing radiocarbon ages and stable isotope ratios. An analytical oceanographic or environmental chemist with recent Ph.D is sought, to help set up a multi-dimensional preparative gas chromatograph. The candidate will be expected to apply the instrument towards research in the analysis of natural levels of radiocarbon in individual organic compounds, isolated from complex natural matrices. Relevant experience would include capillary gas chromatography, isotope ratio measurements, lipid biogeochemistry and gas sample transfer with vacuum lines. SEND RESUME AND CURRICULUM VITAE TO: Human Resources Office Box 54PJG43 Woods Hole Oceanographic Institution Woods Hole, MA 02543 TEL: (508)289-2275 TDD: (508)457-2197 FAX: (508)457-2173 An equal opportunity employer M/F/D/V. WHOI is a smoke-free workplace. --------------E0C5EF32A61A068421B9FA13 Content-Type: text/x-vcard; charset=us-ascii; name="vcard.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Dr. Karl von Reden Content-Disposition: attachment; filename="vcard.vcf" begin: vcard fn: Dr. Karl von Reden n: von Reden;Dr. Karl org: Woods Hole Oceanographic Institution adr: NOSAMS Facility;;Geology & Geophysics Dept., MS#8;Woods Hole ;MA;02543;USA email;internet: kvonreden@whoi.edu title: Research Specialist tel;work: (508) 289-3384 tel;fax: (508) 457-2183 x-mozilla-cpt: ;0 x-mozilla-html: TRUE version: 2.1 end: vcard --------------E0C5EF32A61A068421B9FA13-- ========================================================================= Date: Thu, 16 Jul 1998 09:35:41 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Robert Finkel Subject: Postdoc positions at UC Berkeley/LLNL In-Reply-To: <35ACBC0F.C0F337B1@whoi.edu> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" If these positions look familiar, it's because they are being reposted, since they have not yet been filled. <<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Postdoctoral Fellow Position / 14C and Cosmogenic Nuclides. The Space Sciences Laboratory (SSL) at the University of California, Berkeley seeks applicants for two Postgraduate Research positions to work on applications of 14C and long-lived cosmogenic nuclides to studies of terrestrial and extraterrestrial materials. Opportunities exist in two areas: (1) Development of techniques for the extraction and purification of in-situ produced 14C in terrestrial and extraterrestrial materials. A strong background in analytical and physical chemistry as well as considerable laboratory experience in vacuum techniques and gas analyses, particularly CO2, is highly desirable. (2) Development and application of new techniques for using long-lived cosmogenic nuclides to date terrestrial materials for geological applications. A strong background in isotope geochemistry and nuclear chemistry is required, as is considerable laboratory experience. The fields of application include isotope geochemistry, earth surface processes, origin and history of extraterrestrial materials and particle fluxes in space. Requirements include a Ph.D. in chemistry, physics, geo- or cosmochemistry, or geology. Research locations will be the Space Sciences Laboratory at the University of California, Berkeley and the Lawrence Livermore National Laboratory. A complete curriculum vitae and names and addresses of three references should be sent to: Ms. Judy Jones Space Sciences Laboratory University of California Berkeley, CA 94720-7450 e-mail: kuni@ssl.berkeley.edu Closing date for applications is September 30, 1998. The University of California is an equal opportunity/affirmative action employer. ______________________________________________________ Robert C. Finkel (925) 422-2044 Geoscience & Environmental Technology L-219 (925) 422-0208 (FAX) Lawrence Livermore National Laboratory rfinkel@llnl.gov Livermore, CA 94550 ========================================================================= Date: Thu, 23 Jul 1998 12:18:00 -0400 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: "Kenneth E. Bannister" Subject: GROUNDWATER-DIGEST Comments: To: h2o@cais.cais.com, bobf@wasteman.anr.state.vt.us, bobh@hm9000.anr.state.vt.us, ROOKS@ohm.com, bsmith@anrstj.anr.state.vt.us, CB5690%ZIP007@mt.gov, bonnie@pcp.anr.state.vt.us, briantf@wasteman.anr.state.vt.us, bryanh@dec.anr.state.vt.us, bsd@fern.demon.co.uk, bruce@pubfac.anr.state.vt.us, brucel@hm9000.anr.state.vt.us, bizjrnl@sover.net, cammiem@hm9000.anr.state.vt.us, info@csius.com, Canute.Dalmasse@anrmail.anr.state.vt.us, carlp@waterq.anr.state.vt.us, Carl_Reidel@together.org, carol@pcp.anr.state.vt.us, cathy@pcp.anr.state.vt.us, bwvy87@prodigy.com, CCES-L@hermes.csd.unb.ca, ccwr_users@aqua.ccwr.ac.za, calexander@anrstj.anr.state.vt.us, cee-environment@ucdavis.edu, cee-geotecht@ucdavis.edu, cmedrill@aol.com, CFESA-L@hermes.csd.unb.ca, "Christopher T. Green" , "Christian E. King" , christ@wasteman.anr.state.vt.us, chrisw@wasteman.anr.state.vt.us, Chris Woodcock , Christine Massey , cgallagher@anrstj.anr.state.vt.us, chucks@hm9000.anr.state.vt.us, CASprageo@aol.com, CIVIL-L@unb.ca, CIVIL-L@unb.ca Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" GROUNDWATER-DIGEST - An Internet Forum Please join our global discussion group on groundwater and related topics. The world's largest and busiest groundwater forum, GROUNDWATER-DIGEST was born in late December 1995 to facilitate the discussion of groundwater and related topics by interested parties around the globe.There are thousands of members worldwide, from over 60 different countries. The forum contains members from academia, industry, government and the general public. Follow current topics, watch for job postings, ask questions about your groundwater related projects, advertise your groundwater products or services, keep in touch with others in the field, all here at GROUNDWATER-DIGEST. ................................................................ JOIN FOR FREE: To subscribe to GROUNDWATER-DIGEST send e-mail to: majordomo@ias.champlain.edu In the body of the e-mail type the command: subscribe GROUNDWATER-DIGEST ........................................................... Some of the topics discussed on GROUNDWATER-DIGEST include: Volunteers and hydrogeologists in developing countries Re: Well cost Intel's Latest EHS Report Mapinfo and Modflow DO% to mg/L batch and column hydrogeologist accreditation Transpiration by Acacia Trees Prof. Org. 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Bannister President BANNISTER RESEARCH & CONSULTING Bridport, Vermont USA kenbannister@groundwater.com http://www.groundwater.com If you are not in the lead, the view stays the same. ---------------------------------------------------------------------- ========================================================================= Date: Mon, 27 Jul 1998 11:53:18 +1000 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Marc D Kelly Subject: stromatolite trace element geochemistry Comments: To: Geography List , Stable Isotope Geochemistry , Quaternary List MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_000C_01BDB955.25AF8320" This is a multi-part message in MIME format. ------=_NextPart_000_000C_01BDB955.25AF8320 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit I am presently completing my honours project on modern lacustrine stromatolites from lower SE South Australia. I am wondering if you know of, or read any stuff about Sr/Ca, Mg/Ca, Ba/Ca ratios in stroms as temp. indicators (much like in corals and ostracods). I would be grateful if you could point me in the right direction, as all my searches have come to nothing. Regards, and thanks Marc Kelly | Marc D. Kelly | Ph./ Fax: +61 (0)2 4965 3812 | email: ggmdk@alinga.newcastle.edu.au | Home: 13 William St., Hamilton, NSW, 2303, Australia. | Work: Dept. of Geography, University of Newcastle, Callaghan, NSW, 2308, Australia. ------=_NextPart_000_000C_01BDB955.25AF8320 Content-Type: application/octet-stream; name="Marc D Kelly.vcf" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="Marc D Kelly.vcf" BEGIN:VCARD VERSION:2.1 N:Kelly;Marc;D; FN:Marc D Kelly ORG:Dept. of Geography, University of Newcastle.;Geography NOTE:ICQ# 12742670 TEL;WORK;VOICE:(02) 4921-8976 TEL;HOME;VOICE:02 4965 3812 TEL;CELL;VOICE:018 200 647 TEL;WORK;FAX:+61 (0)2 4921 5877 TEL;HOME;FAX:+61 (0)2 4965 3812 ADR;WORK;ENCODING=3DQUOTED-PRINTABLE:;;Dept. of Geography=3D0D=3D0AThe = University of Newcastle;Callaghan;NSW;2308;Aus=3D tralia LABEL;WORK;ENCODING=3DQUOTED-PRINTABLE:Dept. of Geography=3D0D=3D0AThe = University of Newcastle=3D0D=3D0ACallaghan, NSW 2308=3D =3D0D=3D0AAustralia ADR;HOME:;;13 William St;Hamilton;NSW;2303;Australia LABEL;HOME;ENCODING=3DQUOTED-PRINTABLE:13 William St=3D0D=3D0AHamilton, = NSW 2303=3D0D=3D0AAustralia URL: URL:http://www.newcastle.edu.au BDAY:19981111 EMAIL;PREF;INTERNET:ggmdk@alinga.newcastle.edu.au EMAIL;INTERNET:c9004328@alinga.newcastle.edu.au EMAIL;INTERNET:c9004328@cc.newcastle.edu.au REV:19980610T002504Z END:VCARD ------=_NextPart_000_000C_01BDB955.25AF8320-- ========================================================================= Date: Tue, 28 Jul 1998 13:46:43 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: David Sewell Subject: RADIOCARBON contents on Geoscience Information Center list Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii RADIOCARBON has just been added to the many email lists maintained by the Geoscience Information Center at the University of California, San Diego. The GIC has mailing lists for dozens of geoscience and general-science journals, which are used to send out tables of contents of journal issues and optionally to allow discussion of the journal and topics of interest to journal subscribers. To subscribe to this list, send an email message to listserv@gs.ucsd.edu with any "Subject" and the content subscribe radiocarbon Firstname Lastname where "Firstname Lastname" is your own real name. Note that "subscribe" cannot be abbreviated. For additional information, and to see a full list of journals covered by the GIC service, look at http://gs.ucsd.edu/lists/ Since C14-L already exists for general discussion of radiocarbon-related topics, we plan to use the GIC "radiocarbon" list primarily for announcements and material strictly related to the journal, several times a year. -- David Sewell, Acting Managing Editor RADIOCARBON: An International Journal of Cosmogenic Isotope Research Department of Geosciences, The University of Arizona 4717 E. Ft. Lowell Rd., Tucson, Arizona 85712 USA Telephone: +1 520 881 0857 Fax: +1 520 881 0554 Email: David.Sewell@radiocarbon.org = dsew@packrat.aml.arizona.edu Web site: http://www.radiocarbon.org/ ========================================================================= Date: Thu, 30 Jul 1998 23:30:22 +0100 Reply-To: mxbailly@club-internet.fr Sender: Radiocarbon Mailing List From: Maxence Bailly Subject: läschersee datings MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit hello does anybody know a detailed list of the 14C or TL datings from the Läschersee volcano activity in Germany during the late Pleistocene ? (i just saw a short article about steps and tracks on the tephra in a german archaeological review, and the Gonnersdorf and Andernach sites monographs are not easily available here!) thanks in advance m.bailly ========================================================================= Date: Thu, 30 Jul 1998 15:31:11 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: David Sewell Subject: Re: =?iso-8859-1?Q?l=E4schersee_datings?= Comments: To: mxbailly@club-internet.fr In-Reply-To: <199807302220.PAA44440@listserv.arizona.edu>; from Maxence Bailly on Thu, Jul 30, 1998 at 11:30:22PM +0100 Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit On Thu, Jul 30, 1998 at 11:30:22PM +0100, Maxence Bailly wrote: > does anybody know a detailed list of the 14C or TL datings from the > Läschersee volcano activity in Germany during the late Pleistocene ? > Two references to start with: I. Hajdas, S. D. Ivy-Ochs, G. Bonani, A. F. Lotter, B. Zolitschka and C. Schlüchter. Radiocarbon Age of the Laacher See Tephra: 11,230 ± 40 BP. RADIOCARBON 37, no. 2 (1995): 149-154. And there are some new dates in this forthcoming article: B. Kromer, M. Spurk, S. Remmele, M. Barbetti and Vadimiro Toniello. Segments of Atmospheric 14C Change as Derived from Late Glacial and Early Holocene Floating Tree-Ring Series. RADIOCARBON 40, no. 1 (1998): 351-358. -- David Sewell, Managing Editor RADIOCARBON: An International Journal of Cosmogenic Isotope Research Department of Geosciences, The University of Arizona 4717 E. Ft. Lowell Rd., Tucson, Arizona 85712 USA Telephone: +1 520 881 0857 Fax: +1 520 881 0554 Email: David.Sewell@radiocarbon.org = dsew@packrat.aml.arizona.edu Web site: http://www.radiocarbon.org/