Depositional features and sedimentary model of Buqu Stage in Mid-Jurassic in Quangtang Basin, Xizang (Tibet), China

Wang Xiangtao; Zhai Shikui; Liu Binde; Zhou Shuxin

doi:10.1007/BF02843629

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Depositional features and sedimentary model of Buqu Stage in Mid-Jurassic in Quangtang Basin, Xizang (Tibet), China

Updated：2023-05-16

- Depositional features and sedimentary model of Buqu Stage in Mid-Jurassic in Quangtang Basin, Xizang (Tibet), China
- Journal of Oceanology and Limnology Vol. 22, Issue 4, Pages: 356-364(2004)
- Affiliations：
  
  1. Economic Administration Department of Qinhuangdao Institute Northeast University
  2. Institute of Marine Geoscience Ocean University of China
  3. Qinhuangdao Branch Daqing Petroleum Institute
- Author bio：
- Funds：
- DOI：10.1007/BF02843629
  CLC：
- Published：2004
- Accepted：
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Xiangtao, W., Shikui, Z., Binde, L. et al. Depositional features and sedimentary model of Buqu Stage in Mid-Jurassic in Quangtang Basin, Xizang (Tibet), China., Chin. J. Ocean. Limnol. 22, 356–364 (2004). https://doi.org/10.1007/BF02843629
DOI：

Xiangtao, W., Shikui, Z., Binde, L. et al. Depositional features and sedimentary model of Buqu Stage in Mid-Jurassic in Quangtang Basin, Xizang (Tibet), China., Chin. J. Ocean. Limnol. 22, 356–364 (2004). https://doi.org/10.1007/BF02843629 DOI：

摘要

Abstract

The largest Mesozoic northward transgression in Qangtang Basin of Qinghai-Xizang (Tibet) Plateau occurred during the Buqu Stage

Middle Jurassic. Mainly filled with carbonate rocks

the whole basin is composed of transgression-regression sedimentary cycle. Field outcrops and indoor analysis revealed 8 types of sedimentary facies markers in this region. 4 types of sedimentary facies have been recognized: platform facies

platform marginal facies

foreslope facies and basin facies. Influenced by the northern Lazhuglung-Jinshajiang suture zone

central uplift region and southern Bangongco-Nujiang suture zone

these facies belts extended east-west. The sedimentary model was established based on observed depositional features. From their biological features and sedimentary characteristics

it is suggested that the paleoclimate was warm and humid at that time. The Buqu Formation is a promising target for oil and gas exploration in Shuanghu-Duoyong area in future.

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references

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