Dissertation > Astronomy,Earth Sciences > Geology > Historical geology, stratigraphy > Various types of stratigraphy > Sequence stratigraphy

Sequence Stratigraphy and Paleogeography of Middle Permian-Later Permian in the Southern North China

Author YinYuJing
Tutor ShiLongQing;WeiJiuChuan
School Shandong University of Science and Technology
Course Mineral prospecting and exploration
Keywords the Southern North-China middle-late Permian sedimentary system sequence lithofacies paleogeography
CLC P539.2
Type Master's thesis
Year 2010
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Applying the theories of sequence stratigraphy and depositional system and adopting some technical methods such as high-Precision rock-stratigraphic unit division and correlation, sequence stratigraphic division and correlation and sedimentary microfacies analysis, the lithofacies paleogeography of the Southern North-China Basin were researched comprehensively.After the systematic study and summarization previous jobs and analysis in our research, the new progress and knowledge have got as follows:According to the study of macroscopic and microscopic sedimentological mark of rocks, vertical sequences, logging curves, paleobiology in Southern North-China, we can acknowledged that there were barrier-lagoon,delta and lake sedimentary systems in middle-late Permian; Based on the date of outcrop, log and lithology, sequence stratigraphic division and correlation were made on middle-late Permian in southern North-China Basin, middle-late Permian in southern North-China Basin was divided into four sequences and twelve parasequences, and high-precision geologic correlation framework was built up in the basin; Sedimentary sequence is the combined result superimposed with the world’s sea-level changes, tectonic movements, material source supply and climate change, and other geological factors; In the term of sedimentary features of middle-late Permian in Southern North-China Basin, lateral variation of sedimentary facies was studied selectively in sequence 4, sequence 5, sequence 6, and sequence 7, lithofacies palaeogeography of each sequence diagram was prepared,and lithofacies paleographic features and the sedimentary evolutionary process of middle-late Permian in Southern North-China Basin were worked also.

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