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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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Petroleum exploration in eastern China in recent years indicates compressive folding as the main tectonic feature during the Mesozoic. In the Cenozoic, tensile block-faulting formed a new stage of development. This "compression followed by tension" stress field created two different sedimentary, tectonic, and oil-occurrence cycles, two different kinds of oil and gas basins, and two different modes of oil and gas accumulation.
In the "depression-type" sedimentary basins of the Mesozoic, oil and gas accumulations are mainly controlled by anticlinal structures of the second order. In contrast, in the "fault-depression-type" Cenozoic sedimentary basins, oil and gas occur in traps formed by block faulting.
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