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| Keywords | |
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Tibet |
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Jiali County |
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Early Cretaceous |
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Duoni Formation |
| Authors | |
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YANG De-Ming-1 |
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HU Bo-2 |
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DONG Qing-Shui-1 |
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WANG Tian-Wu-1 |
| PubMed | |
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Article by Yang, D. M. 1 |
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Article by Hu, B. 2 |
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Article by Dong, Q. S. 1 |
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Article by Wang, T. W. 1 |
Lithostratigraphy and sedimentary environment in Lower Cretaceous Duoni Formation in Baga area of Jiali, Tibet
YANG De-Ming-1, HU Bo-2, DONG Qing-Shui-1, WANG Tian-Wu-1
1. College of Earth Sciences, Jilin University, Changchun 130061, China; 2. Chongqing Institute of Geology & Mineral Resources, Chongqing 400042, China
Duoni Formation in the studied area is a set of coaly grey to black lithic quartz sandstones, feldspar-sandstones, carbonous siltstones and shale. The biostratigraphic characteristics indicate the age of Duoni Formation is Berriasian to Valanginian of Early Cretaceous. The analyses of lithologic features and clastic rock size show that the sedimentary environment of Duoni Formation is delta deposit, including prodelta, delta front and delta plain, and the third-order sequence presents gradual transgression feature in general.