On the Feasibility of the Four Division Scheme about Continental Sequence Stratigraphy

DONG Qing-shui; LIU Zhao-jun; FANG Shi; BAIi Tao

The author aimed at the character of the continental stratum development to discuss the feasibility of the application of classical sequence stratigraphy to continental stratum .We point out that the compulsory lake regresson often appears in later period of continental stratum development ,so large progradational stratum wedge come into being when lake level fall from the high relatively stable water level to the low water level, the bottom interface of this compulsory stratum wedge is conformable down lapping surface, it's top-interface is regional erosional boundary ,in this circumstance ,it is not feasible to take the bottom interface as sequence boundary ,and the top interface as sequence boundary is more correspond to the theory of classic sequence stratigraphy. Compulsory regressive stratum should be a new system tract on high level system tract in continental third grade sequence element ,continental sequence stratigraphy third grade element should be classified to four parts ;the element of the scheme of four division can not only be distinguished,but also has significance in theory and in practice.

College of Earth Sciences, Jilin University, Changchun 130061

Received Date: 2002-04-23

Rev Recd Date: 2002-07-08

Publish Date: 2003-06-10

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Abstract: The author aimed at the character of the continental stratum development to discuss the feasibility of the application of classical sequence stratigraphy to continental stratum .We point out that the compulsory lake regresson often appears in later period of continental stratum development ,so large progradational stratum wedge come into being when lake level fall from the high relatively stable water level to the low water level, the bottom interface of this compulsory stratum wedge is conformable down lapping surface, it's top-interface is regional erosional boundary ,in this circumstance ,it is not feasible to take the bottom interface as sequence boundary ,and the top interface as sequence boundary is more correspond to the theory of classic sequence stratigraphy. Compulsory regressive stratum should be a new system tract on high level system tract in continental third grade sequence element ,continental sequence stratigraphy third grade element should be classified to four parts ;the element of the scheme of four division can not only be distinguished,but also has significance in theory and in practice.

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On the Feasibility of the Four Division Scheme about Continental Sequence Stratigraphy

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