High-resolution speleothem paleoclimatology of northern Venezuela: a progress report. Boletín Sociedad Venezolana de Espeleología 36

ABSTRACT Stalagmites from four caves of northern Venezuela were collected for paleoclimatology studies. Preliminary age determinations and carbon and oxygen isotope data from a stalagmite, show a major stable isotope shift from approximately 11,500 to 10,000 years ago similar to the Sajama ice core...

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Bibliographic Details
Main Authors: Luis A González, Roger Gómez
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2002
Subjects:
ice core
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1078.6825
http://people.ku.edu/%7Elgonzlez/NewFiles/36-Gonzalez.pdf
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Summary:ABSTRACT Stalagmites from four caves of northern Venezuela were collected for paleoclimatology studies. Preliminary age determinations and carbon and oxygen isotope data from a stalagmite, show a major stable isotope shift from approximately 11,500 to 10,000 years ago similar to the Sajama ice core record and the Cariaco basin foraminifera G. rubber record. The enriched δ 13 C and δ 18 O data at this period (relative to the Holocene data) suggest dryer conditions with either greater contribution of C4 plants or less recycling of soil CO 2 and colder conditions.

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