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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 47 (1963)

Issue: 9. (September)

First Page: 1775

Last Page: 1775

Title: Delineating Low-Previous HitVelocityNext Hit Lenses: ABSTRACT

Author(s): Frederick L. Schenck

Article Type: Meeting abstract


The end of a low-Previous HitvelocityNext Hit lens diffracts energy emerging after reflection at a lower level. Conventional interpretive treatment of such energy as an undiffracted reflection could lead to serious inferences of non-existent structure. Constant moveout down the record is the main criterion for the diffracted reflection situation. The diffractive source, assuming the Previous HitvelocityNext Hit in the surrounding material to be known, is found as the envelope of emergent travel paths. Reflected energy from the top of the feature, if recognized, can be solved for delineating the upper limit of the body. The thickness can be estimated from observed delay times. For discovering and delineating low-Previous HitvelocityTop lenses, long reflection spreads should be used.

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Copyright 1997 American Association of Petroleum Geologists