Seismic Stratigraphy and Global Changes of Sea Level, Part 1: Overview1
Seismic Stratigraphy and Global Changes of Sea Level, Part 1: Overview1
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发表时间:
1977
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影响因子:
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通讯作者:
P. Vail;R. Mitchum;C. Payton
中科院分区:
文献类型:
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作者:
P. Vail;R. Mitchum;C. Payton
Seismic stratigraphy is basically a geologic ap proach to the stratigraphic interpretation of seis mic data. The unique properties of seismic reflec tions allow the direct application of geologic concepts based on physical stratigraphy. Primary seismic reflections are generated by physical sur faces in the rocks, consisting mainly of stratal (bedding) surfaces and unconformities with ve locity-density contrasts. Therefore, primary seis mic reflections parallel stratal surfaces and un conformities. Whereas all the rocks above a stratal or uniformity surface are younger than those below it, the resulting seismic section is a record of the chronostratigraphic (time-stratigraphic) depositional and structural patterns and not a record of the time-transgressive lithostratigraphy (rock-stratigraphy). Because seismic reflections follow chronostrati graphic correlations, it is not only possible to in terpret postdepositional structural deformation, but also it is possible to make the following types