THE TRIASSIC OF THE YINING BASIN, XINJIANG

Geological Bulletin of China > 1997 > 16(4): .

1997: THE TRIASSIC OF THE YINING BASIN, XINJIANG. Geological Bulletin of China, 16(4).

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1997: THE TRIASSIC OF THE YINING BASIN, XINJIANG. Geological Bulletin of China, 16(4).

Citation:

1997: THE TRIASSIC OF THE YINING BASIN, XINJIANG. Geological Bulletin of China, 16(4).

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THE TRIASSIC OF THE YINING BASIN, XINJIANG

Department of Geology, Northwest University, Xi’an, Shaanxi

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Available Online: August 17, 2023
Published Date: November 14, 1997

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The Yining basin, situated in the central Tianshan orogenic belt, hosts a thickness of more than 700 m of Triassic continental strata. According to the sequence, lithology, sedimentary facies and sporo pollen assemblages of the Triassic section, the Triassic may be divided in ascending order into: （1）the Lower Triassic upper Cangfanggou Group, which consists of fluvial purplish red and grayish purple sandy conglomerate and mudstone with sandstone, 340～474 m thick; （2）the Middle Triassic Karamay Formation, which is composed of fluvial lacustrine silty mudstone and sandstone, 58～121 m thick; （3）the Upper Triassic Huangshanjie Formation and Haojiagou Formation, which are made up of lacustrine dark gray black mudstone and siltstone and fine sandstone, 140～263 m thick.
- Triassic,
- stratigraphy,
- sporopollen assemblage,
- Yining basin

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