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Case study of sequence-based lithofacies-paleogeography research and mapping of south China(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2004年第01期
Page:
6-12
Research Field:
Publishing date:

Info

Title:
Case study of sequence-based lithofacies-paleogeography research and mapping of south China
Author(s):
TIAN Jing-chun1; 2; CHEN Hong-de1; 2; QIN Jian-xiong1; HOU Zhong-jian1; HOU Ming-cai1; PENG Jun1
1 .StateKey Laboratory of Oil and Gas Reservoir Geology and Exploitation , Chengdu 610059 , China ; 2 .Institute of Sedimentary Geology , Chengdu University of Technology , Chengdu 610059 , China
Keywords:
sequence ; sequence-based lithofacies-paleogeography map; organization
PACS:
P531
DOI:
-
Abstract:
On the basis of the general review of lithofacies-paleogeography research in China and the sequence stratigraphy , the mapping methodology in relation to the sequence-based lithofacies paleogeography was postulated firstly to involve determining the mapping unit , which included two main procedures.The first one was related to the system tract within the work area and the other to pertinent sequence boundaries.Specific steps comprise building the sequence-stratigraphy framework, based on the fine sequence division and comparison, and then establishing the lithofacies-paleogeography map of separate systems of each sequence .The sequence-based lithofacies-paleogeography map made in this way is marked by several advantages like synchroneity and succession of the sedimentation process and hence is far more practical for exploration purposes .Furthermore , it more precisely reconstructs the primary geologic process , reveals certain unknown facts and proves more informative .The Permian System in South China was eventually exemplified to elaborate the aforementioned mapping method.

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Last Update: 2004-03-20