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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 31 (1947)

Issue: 11. (November)

First Page: 2021

Last Page: 2029

Title: Stratigraphic Convergence Problems in Oil-Finding

Author(s): Robert M. Swesnik (2), Robert R. Wheeler (3)

Abstract:

Onlap, involving loss of beds at the base of a transgressing sequence, and Previous HittruncationTop, by which beds are beveled off by differential erosion, are regarded here as the important factors in stratigraphic convergence. These processes are quantitatively formulated with reference to the rates of dip of (1) the upper beds, (2) the unconformity, and (3) the lower beds. The applications of convergence formulae to reconstructing paleogeology, to locating belts of wedge-out reservoir rocks, and to detecting structural anomalies are discussed with especial emphasis on the possibilities for cooperation between seismologist and geologist in finding stratigraphic traps.

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