东昆仑造山带东段下中三叠统研究进展

田军; 张克信; 龚一鸣

Volume 25 Issue 3

May 2000

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Article Navigation > Earth Science > 2000 > 25(3): 290-294

TIAN Jun, ZHANG Kexin, GONG Yiming, 2000. ADVANCES IN LOWER AND MIDDLE TRIASSIC STRATIGRAPHIC RESEARCH IN EAST OF EASTERN KUNLUN OROGENIC BELT. Earth Science, 25(3): 290-294.

Citation:

TIAN Jun, ZHANG Kexin, GONG Yiming, 2000. ADVANCES IN LOWER AND MIDDLE TRIASSIC STRATIGRAPHIC RESEARCH IN EAST OF EASTERN KUNLUN OROGENIC BELT. Earth Science, 25(3): 290-294.

TIAN Jun, ZHANG Kexin, GONG Yiming, 2000. ADVANCES IN LOWER AND MIDDLE TRIASSIC STRATIGRAPHIC RESEARCH IN EAST OF EASTERN KUNLUN OROGENIC BELT. Earth Science, 25(3): 290-294.

Citation:

TIAN Jun, ZHANG Kexin, GONG Yiming, 2000. ADVANCES IN LOWER AND MIDDLE TRIASSIC STRATIGRAPHIC RESEARCH IN EAST OF EASTERN KUNLUN OROGENIC BELT. Earth Science, 25(3): 290-294.

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ADVANCES IN LOWER AND MIDDLE TRIASSIC STRATIGRAPHIC RESEARCH IN EAST OF EASTERN KUNLUN OROGENIC BELT

1.
Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
2.
Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China

Received Date: 2000-01-11
Publish Date: 2000-05-25

Abstract

Abstract

The Lower and Middle Triassic strata, east of Eastern Kunlun orogenic belt, contains the Lower Triassic Hongshuichuan Group and the Middle Triassic Naocangjiangou Formation. The studies of body and trace fossils, as well as those of the regional lithology correlation, show that the Lower Triassic Hongshuichuan Group included in the Lower Triassic Indian stage and Olenekian stage, are divided into three lithological units: the sandstone and conglomerate unit at the bottom, the limestone with sandstone unit in the middle, and the sandstone and slate unit at the top. The Naocangjiangou Formation ranging from the early Middle Traissic to Middle Anisian includes two members: the sandstone and conglomerate member at the bottom and the sandstone and slate member at the top. The analysis of constant elements in the sandstone indicates that the majority of sandstones are composed of greywacke, belonging to the turbidite in a flysch basin. The eigenvalues of the rare-earth elements in the sandstone are close to the parameters of the rare-earth elements located in the active continental margin and in the continental arc.
- Hongshuichuan Group,
- Naocangjiangou Formation,
- east of Kunlun orogenic belt

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References(13)

References

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