The Characteristics of Palaeogeomorphology in Ek1 and the Lower Part of Es4 of the Paleogene in Dongying Depression and its Significance to Petroleum Geology

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Abstract:

By using the data of drilling and logging and other materials, the contour graph of the thickness of the remnant strata can be worked out. After the compaction restoration of the graph, the original sedimentary thickness of the First Member of Kongdian Formation(Ek1) and the Lower Part of the Fourth Member of Shahejie Formation ( lower Es4) can be obtained and their palaeogeomorphology can be reconstructed. The research results show that palaeogeomorphology has an obvious control on the sedimentary systems of Ek1 and lower Es4. In the areas with higher mountains and steeper slopes in the northern basin, there mainly develop nearshore subaqueous fans while in the south of the basin, there mostly develop alluvial fans.

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Advanced Materials Research (Volumes 524-527)

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226-230

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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