I've been asked to approach the listserve with several questions.

Two research projects currently underway here at Syracuse University have
uncovered some rather extreme and as of yet somewhat unexplained d13C values.

Holocene marl d13C values from Bolivia varies from a high of about +16 per
mil PDB
down to what could be considered more conventional lacustrine values (+2 to
+4 per mil PDB).

A Holocene marl core from the Finger Lakes region on central New York State
(Cayuga Lake) has yielded bulk aquatic organic matter with a d13C value of
-33 per mil PDB and a
radiocarbon date which is about 2 thousand years too young (in reference
to14C dates on bracketing organic matter). These organic matter d13C values
are therefore about 6 per mil lower than would be expected.

Our question is.....has anyone obtained similar data or know of any
published explanation for such values?

Thanks, I'll pass any info along!
Bill

William P. Patterson
Syracuse University
Department of Earth Sciences
Syracuse, NY 13244-1070
Phone: 315-443-3869
FAX: 315-443-3363
http://128.230.24.91/Bill.html
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