--> ABSTRACT: The Sequence Stratigraphic Models of the Fault-Depression Lacustrine Basin in East China, by Shiqi Zhang and Youliang Ji; #90906(2001)

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Shiqi Zhang1, Youliang Ji1

(1) University of Petroleum, Dongying, Shandong, China

ABSTRACT: The Sequence Stratigraphic Models of the Fault-Depression Lacustrine Basin in East China

According to seismic sections, drilling data explanations,log analyses and geochemical characters, we studied the sequence stratigraphic structures of early Tertiary in Dongying sag,and classified them into 4 types of internal structures--¢ñ, ¢ò, ¢ó,¢ô. It is difficulty to explain the formation of these structures through lake-level changes. So it is put forward that tectonic movements and climatic changes are the main controlling factors of evolution of lacustrine fault-depression sequence, and divided sequence into tectonic sequence and climatic sequence according to the controlling factors. Moreover, tectonic sequence was divided into simple fault depression sequence, synsedimentary fault depression sequence and multi-time fault depression sequence. Different sequences have different system tracts.

AAPG Search and Discovery Article #90906©2001 AAPG Annual Convention, Denver, Colorado