SEQUENCE STRATIGRAPHY OF CARBONIFEROUS IN THE CENTRAL AREA OF ORDOS BASIN
Zheng Bao
Abstract
Zheng Bao
Abstract
The Carboniferous strata, is up to 0~600 m thick in Ordos basin, are ascribed to the tidal-delta sediments.In this paper, the sequence stratigraphy of Carboniferous are discussed on the basis of sedimentological of the field exposure and drill section studies, two types of sequence boundaries have been recognized.According to the sequence boundaries cited above, two sequences have been distinguished, being assigned to the Benxi and Taiyuan periods. Each sequence is composed of transgressive systems tract and highstand systems tract,but lowstand systems tract are lacked.It is also discussed the distribution of the condensed beds and systems tract. [
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The Carboniferous strata, is up to 0~600 m thick in Ordos basin, are ascribed to the tidal-delta sediments.In this paper, the sequence stratigraphy of Carboniferous are discussed on the basis of sedimentological of the field exposure and drill section studies, two types of sequence boundaries have been recognized.According to the sequence boundaries cited above, two sequences have been distinguished, being assigned to the Benxi and Taiyuan periods. Each sequence is composed of transgressive systems tract and highstand systems tract,but lowstand systems tract are lacked.It is also discussed the distribution of the condensed beds and systems tract. [
Key concepts: Carboniferous, Sequence stratigraphy, Geology, Sequence (biology), Paleontology, Structural basin, Stratigraphy, Transgressive