Sorry about the confusion,
the values are around minus 15 per mil and there is no possibility of 
marine influence....
Bjoern

-- 
Björn Wissel, PhD
EQAL Manager, Faculty of Science
Adjunct Professor, Department of Biology
265.2 Laboratory Building
University of Regina
Regina, SK S4S 0A2 Canada
phone    306 585-4890
fax      306 337-2410
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www.uregina.ca/biology/faculty/Wissel/Wissel.html