========================================================================= Date: Mon, 5 Aug 2002 12:01:26 +0100 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Caitlin Buck Organization: University of Sheffield Subject: Re: Combining C14 dates MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I was away from the office when this thread was started, and am pleased to see that there is still interest in this topic. (Not surprisingly, ) I recommend that you take a look at some of the Bayesian work on combining C14 data. In particular, I think that you will find the following relevant. J. A. Christen (1994) Summarizing a set of radiocarbon determinations: a robust approach, Applied Statistics, 43(3), 489-503. These ideas are implemented in BCal, available at: http://bcal.shef.ac.uk/ Caitlin -- Dr Caitlin Buck Email: c.e.buck@sheffield.ac.uk Dept of Probability and Statistics University of Sheffield Tel: +44 114 222 3715 (direct) Hicks Building Tel: +44 114 222 3751 (secretary) Hounsfield Road Fax: +44 114 222 3759 Sheffield S3 7RH =========================================================================== To unsubscribe from this list, send the command SIGNOFF C14-L to LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU. ========================================================================= Date: Wed, 7 Aug 2002 08:15:16 +0200 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Uwe Danzeglocke Subject: CalPal - Update MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Dear collegues on list, We are pleased about the continued interest in CalPal (The Cologne Radiocarbon Calibration & Paleoclimate Research Package) and have recently placed a new version of the program (but still called "Ghost of Edinburgh) on our site: http://www.calpal.de . What is new, briefly? - Enhanced graphic conversion (graphic export) - Additional Radiocarbon database facilities (SQL-dialogs) - Redesigned Climate Composer (fine-tuning of age-modells) - Integrated 14C Database Cartography via PanMap (cf. http://www.pangaea.de). We apologise that the manual remains in beta-state. CalPal is scientific freeware. When using CalPal and the data incorporated in CalPal, please always cite the original authors and the original references. Sincerely Uwe Danzeglocke +++++++++++++++++++ uwe@danzeglocke.de http://www.calpal.de +++++++++++++++++++ =========================================================================== To unsubscribe from this list, send the command SIGNOFF C14-L to LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU. ========================================================================= Date: Wed, 14 Aug 2002 11:53:25 +0200 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Guillaume =?iso-8859-1?Q?H=E9douin?= Subject: Peat analysis Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1"; format=flowed Content-Transfer-Encoding: 8bit Good morning, I begin a piece of research on peat bog in Normandie (France) for my master's degree this year. I'll try to reconstruct the paleoenvironnement by palynology. The peat bog is about 1000 ha but it's exploide by industrial. It's 12 meters deep. For that work, I will have to date peat and I'm looking for laboratory who can provide with analysis for me. Could you send me any prices (and advice) in analysis. My first investigation leads me to C14. Do any others methods exist ? Your faithfully Guillaume Hédouin Maitrise de Géographie Téléphone 33(0)2 33 42 05 04 GEO.PH.EN. Géographie Physique et Environnement U.M.R. 6554 Téléphone 33(0)2 31 93 59 62 Télécopie 33(0)2 31 56 53 72 =========================================================================== To unsubscribe from this list, send the command SIGNOFF C14-L to LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU. ========================================================================= Date: Wed, 14 Aug 2002 17:42:42 +0100 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Russell Salisbury Subject: Re: Peat analysis MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Hi Guillaume! Tephrachronology might be worth a look at (thats if you can find the Tephra layers, if any are in fact present!) Russell _____________ Russell Salisbury Department of Geography and Topographic Science University of Glasgow Glasgow G12 8QQ Scotland,UK Email: rsalisbury@geog.gla.ac.uk Phone: +44 (0)141 330 4445 (direct) Fax: +44 (0)141 330 4894 ----- Original Message ----- From: "Guillaume Hédouin" To: Sent: Wednesday, August 14, 2002 10:53 AM Subject: Peat analysis > Good morning, > > I begin a piece of research on peat bog in Normandie (France) for my > master's degree this year. > I'll try to reconstruct the paleoenvironnement by palynology. The peat bog > is about 1000 ha but it's exploide by industrial. It's 12 meters deep. > For that work, I will have to date peat and I'm looking for laboratory who > can provide with analysis for me. > > Could you send me any prices (and advice) in analysis. > My first investigation leads me to C14. Do any others methods exist ? > > Your > faithfully > > > > Guillaume Hédouin > Maitrise de Géographie > Téléphone 33(0)2 33 42 05 04 > > GEO.PH.EN. > Géographie Physique et Environnement > U.M.R. 6554 > Téléphone 33(0)2 31 93 59 62 > Télécopie 33(0)2 31 56 53 72 > > =========================================================================== > To unsubscribe from this list, send the command SIGNOFF C14-L to > LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU. > =========================================================================== To unsubscribe from this list, send the command SIGNOFF C14-L to LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU. ========================================================================= Date: Thu, 15 Aug 2002 13:43:20 +1200 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Rodger Sparks Subject: Re: Peat analysis Mime-Version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Dear Guillaume, If you would like to contact me directly (email address below), we can discuss ways we could help you. Regards, Rodger Sparks //////////////////////////////////////////////////////////////////////////////////////////// Rafter Radiocarbon Laboratory, Institute of Geological and Nuclear Sciences, 30 Gracefield Road, PO Box 31-312, Lower Hutt, New Zealand. Email: r.sparks@gns.cri.nz Fax: +64 4 570 4657 http://www.RafterRadiocarbon.co.nz ///////////////////////////////////////////////////////////////////////////////////////////// Good morning, I begin a piece of research on peat bog in Normandie (France) for my master's degree this year. I'll try to reconstruct the paleoenvironnement by palynology. The peat bog is about 1000 ha but it's exploide by industrial. It's 12 meters deep. For that work, I will have to date peat and I'm looking for laboratory who can provide with analysis for me. Could you send me any prices (and advice) in analysis. My first investigation leads me to C14. Do any others methods exist ? Your faithfully Guillaume Hédouin Maitrise de Géographie Téléphone 33(0)2 33 42 05 04 GEO.PH.EN. Géographie Physique et Environnement U.M.R. 6554 Téléphone 33(0)2 31 93 59 62 Télécopie 33(0)2 31 56 53 72 =========================================================================== To unsubscribe from this list, send the command SIGNOFF C14-L to LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU. ========================================================================= Date: Thu, 15 Aug 2002 09:17:22 +0100 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: "Suckow, Axel" Subject: AW: Peat analysis MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Hi Guillaume for the short time scale down to 100 years 210Pb and anthropogenic fallout will work: Oldfield, F., Appleby, P.G., Cambray, R.S., Eakins, J.D., Barber, K.E., Battarbee, R.W., Pearson, G.W., Williams, J.M. (1979): 210Pb, 137Cs and 239Pu profiles in ombrotrophic peat. Oikos 33, pp. 40-45; Copenhagen. or, for the basics of the method: Appleby, PG., Oldfield, F. (1992): Application of lead-210 to sedimentation studies. Ivanovich, Miro, Harmon, Russell Scott (eds.): Uranium Series Disequilibrium. Applications to Earth, Marine and Environmental Sciences, pp. 731-779; Clarendon Press, Oxford. For the time range beyond Radiocarbon up to Eem (and maybe beyond) another possibility is 230Th/234U dating: Heijnis, H. (1992): Uranium/Thorium dating of Late Pleistocene peat deposits in N.W. Europe. PhDD thesis, Rijksuniversiteit Groningen, 149 pages. Schirrmeister, L., Oezen, D., Geyh, M.A. (2002): 230Th/U dating of Frozen Peat, Bol'shoy Lyakhovsky Island (Northern Siberia). Quaternary Research 57, pp. 253-258. All three methods are possible in our lab (in principle). amicalement Axel ***************************************** Dr. Axel Suckow Institut für Geowissenschaftliche Gemeinschaftsaufgaben (GGA); Leibniz Institute for Applied Geosciences; Geochronology and Isotope Hydrology (S3); Stilleweg 2; 30655 Hannover; Phone: +49 511 6432527; Fax: +49 511 6433665; e-mail: Axel.Suckow@GGA-Hannover.de -----Ursprüngliche Nachricht----- Von: Guillaume Hédouin [mailto:guillaume.hedouin@ESPACES-NATURELS.FR] Gesendet: Mittwoch, 14. August 2002 10:53 An: C14-L@listserv.arizona.edu Betreff: Peat analysis Good morning, I begin a piece of research on peat bog in Normandie (France) for my master's degree this year. I'll try to reconstruct the paleoenvironnement by palynology. The peat bog is about 1000 ha but it's exploide by industrial. It's 12 meters deep. For that work, I will have to date peat and I'm looking for laboratory who can provide with analysis for me. Could you send me any prices (and advice) in analysis. My first investigation leads me to C14. Do any others methods exist ? Your faithfully Guillaume Hédouin Maitrise de Géographie Téléphone 33(0)2 33 42 05 04 GEO.PH.EN. Géographie Physique et Environnement U.M.R. 6554 Téléphone 33(0)2 31 93 59 62 Télécopie 33(0)2 31 56 53 72 =========================================================================== To unsubscribe from this list, send the command SIGNOFF C14-L to LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU. =========================================================================== To unsubscribe from this list, send the command SIGNOFF C14-L to LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU. ========================================================================= Date: Fri, 16 Aug 2002 09:57:29 +0100 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Andrew Millard Subject: Re: Peat analysis In-Reply-To: <5.1.0.14.0.20020814113744.00a728a0@pop.free.fr> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Content-Transfer-Encoding: 8bit Dear Guillaume Within the time for a masters degree, I think that radiocarbon is your best option. I think the other techniques that have been suggested would be good for a larger project, but you have limited time! Tephrochronology is easy if you are close enough to volcanoes to have macroscopic tephra layers. But Normandy (like southern England) is far from most tephra sources. Searching for microscopic tephra is time consuming, unless you have "rangefinder" radiocarbon dates to target your search on particular depths to find particular tephra marker horizons. However tephrochronology might be essential if your sequence extends beyond the range of radiocarbon. Lead-210 dating is good if you want to look at the last 200 years in detail, but with a 12m sequence I think you will be studying the whole Holocene and possibly more. Before you start to obtain dates you should also think about: - how you will construct an age-depth model - what time resolution you will want This will allow you to obtain the appropriate number of dates to achieve your aims. You may find it worthwhile to discuss your dating requirements with the CNRS funded AMS radiocarbon laboratory at Gif-sur-Yvette. best wishes for your work Andrew Millard On Wed, 14 Aug 2002, Guillaume [iso-8859-1] Hédouin wrote: > Good morning, > > I begin a piece of research on peat bog in Normandie (France) for my > master's degree this year. > I'll try to reconstruct the paleoenvironnement by palynology. The peat bog > is about 1000 ha but it's exploide by industrial. It's 12 meters deep. > For that work, I will have to date peat and I'm looking for laboratory who > can provide with analysis for me. > > Could you send me any prices (and advice) in analysis. > My first investigation leads me to C14. Do any others methods exist ? > > Your > faithfully > > > > Guillaume Hédouin > Maitrise de Géographie > Téléphone 33(0)2 33 42 05 04 > > GEO.PH.EN. > Géographie Physique et Environnement > U.M.R. 6554 > Téléphone 33(0)2 31 93 59 62 > Télécopie 33(0)2 31 56 53 72 > > ============================================================================ > To unsubscribe from this list, send the command SIGNOFF C14-L to > LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU. > ========================================================================= Dr. Andrew Millard A.R.Millard@durham.ac.uk Department of Archaeology, University of Durham, Tel: +44 191 374 4757 South Road, Durham. DH1 3LE. United Kingdom. Fax: +44 191 374 3619 http://www.dur.ac.uk/a.r.millard/ ========================================================================= =========================================================================== To unsubscribe from this list, send the command SIGNOFF C14-L to LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU. ========================================================================= Date: Thu, 29 Aug 2002 18:56:27 +0200 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Uwe Danzeglocke Subject: CalPal - Update Comments: To: Paleoclimate List MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1252" (With apologies for cross posting) Dear collegues, We have recently placed a new version of the program CalPal (The Cologne Radiocarbon Calibration & Paleoclimate Research Package) (still called "Ghost of Edinburgh) on our site: http://www.calpal.de. The new version is designed to run under WIN2K/XP, as well as bug-fixed to run under WIN95/98. Although the new CalPal is still awaiting some further cosmetic improvements, as well as some envisaged major technical improvements still in the planning stage, we expect that most CalPal users will profit from the facilities already available in this version (see below). The new version will run parallel to the old version i.e. under its own directory. Installation is semi-automatic. Uninstallation is easily performed via delete. As in the past, CalPal allows the calendric age conversion of large 14C data sets, which are shown in graphic context with selected climate proxies, in the age range 0-50 ka (14C) resp. 0-500 ka (climate), with numeric precision 1yr. New features are: - Enhanced graphic conversion (graphic export under different formats) - 14C-data entry via ASCII or Spreadsheet - Graphic export in postscript quality via clipboard. - Radiocarbon database managment (xls-import and SQL-dialogs) - Climate Composer (mouse-controlled visual fine-tuning of climate proxies). - Extension of the palaeclimate data base - 14C database cartography via PanMap (with courtesy of http://www.pangaea.de). Old/unchanged features are: The manual remains in the traditional beta-state. The program output is referenced to the calBC/AD scale. 14C Age conversion beyond 24 ka remains dedicated to the keen in heart. CalPal is scientific freeware. When using CalPal and the data incorporated in CalPal, please always cite the original authors and the original references. Sincerely Uwe Danzeglocke +++++++++++++++++++ uwe@danzeglocke.de http://www.calpal.de =========================================================================== To unsubscribe from this list, send the command SIGNOFF C14-L to LISTSERV@LISTSERV.ARIZONA.EDU, or send a request to C14-L-request@LISTSERV.ARIZONA.EDU.