========================================================================= Date: Wed, 28 Jun 2006 08:42:46 -0700 Reply-To: Radiocarbon Mailing List Sender: Radiocarbon Mailing List From: Nathan English Subject: CALIBomb dataset beyond 2000... Mime-Version: 1.0 (Apple Message framework v624) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=ISO-8859-1; format=flowed I have looked at the archives and could not find an answer to these=20 questions, so here goes.... 1) I have been using CALIBomb to calculate post-bomb ages of cactus=20 spines, however, the Zone 2 (Hua and Barbetti) dataset ends at 1999.5,=20= and I have a sample that should fall somewhere in the 2000 to 2006=20 range. Is there an update to the Hua and Barbetti dataset available? =20= If so, I can eyeball the date (F14C =3D 1.0864 =B1 0.0037, d13C =3D = -10.3). 2) I believe local hydrocarbon pollution may be "pulling" my dates down=20= the right side of the bomb-spike decay curve and into the future. Has=20= anyone else seen/published this effect? I have Eastoe et al. (2004),=20 but wondered if there were others in the grey literature. 3) Also, I noticed in the CALIBomb literature (Reimer et al) there is a=20= suggestion of being able to use custom datasets in CALIBomb. Is this=20 possible? Thank you for your help. Sincerely, Nathan English= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 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.