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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 49 (1965)

Issue: 9. (September)

First Page: 1564

Last Page: 1564

Title: Palynological Evidence for Folding, Faulting, and Erosional Contacts in Subsurface: ABSTRACT

Author(s): L. R. Wilson

Article Type: Meeting abstract

Abstract:

Palynological studies, conducted on exposed rocks illustrating various degrees of folding, faulting, and other expressions, have been used to interpret conditions observed in subsurface samples. Palynological evidence of rock folding or faulting is shown by degrees of spore and pollen preservation and progressive color changes from yellow to black. Folded structures generally can be distinguished from fault structures by more uniform and widespread occurrence of specific palynological physical changes. Regions containing igneous intrusions show similar palynological changes, but differ in proportion to type and distribution of igneous bodies. Unconformities are detected by marked palynological assemblage changes and in many instances by recycled fossils above an erosional surface. Recognition of palynological physical aspects can be useful in the identification of paleogeographic features, direction and approximate location of stratigraphic traps, paleotemperature conditions within an area, and probable oil or gas potentials.

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Copyright 1997 American Association of Petroleum Geologists