A STUDY ON THE CHARACTERISTICS OF THE FLUVIAL SEDIMENTS OF THE LATE TRIASSIC XU-2 MEMBER IN WESTERN SICHUAN BASIN

He Li

doi:10.11781/sysydz198201027

Volume 4 Issue 1

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Article Navigation > PETROLEUM GEOLOGY & EXPERIMENT > 1982 > 4(1): 27-34

He Li. A STUDY ON THE CHARACTERISTICS OF THE FLUVIAL SEDIMENTS OF THE LATE TRIASSIC XU-2 MEMBER IN WESTERN SICHUAN BASIN[J]. PETROLEUM GEOLOGY & EXPERIMENT, 1982, 4(1): 27-34. doi: 10.11781/sysydz198201027

Citation:

He Li. A STUDY ON THE CHARACTERISTICS OF THE FLUVIAL SEDIMENTS OF THE LATE TRIASSIC XU-2 MEMBER IN WESTERN SICHUAN BASIN[J]. PETROLEUM GEOLOGY & EXPERIMENT, 1982, 4(1): 27-34. doi: 10.11781/sysydz198201027

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A STUDY ON THE CHARACTERISTICS OF THE FLUVIAL SEDIMENTS OF THE LATE TRIASSIC XU-2 MEMBER IN WESTERN SICHUAN BASIN

doi: 10.11781/sysydz198201027

He Li

The First Headquarters for Petroleum Prospecting and Exploration, Ministry of Geology

Received Date: 1980-12-04
Publish Date: 1982-01-25

Abstract

Abstract

Based on the study of the characteristics of the sediments of the Xu-2 Member at Jinhe, Shifang, six sedimentary assemblages are designated and their ten features are described. It is considered that the sandstone of the Xu-2 Member is formed as a result of superim-position of six major fluvial sedimentations. Through the studies of the features of the fluvial sediments, as well as their mineralogical composition and grain size, five types of sedimentary environment of the Xu-2 sandstone within the Sichuan Basin are distinguished and the extent of their distribution is discussed respectively. Thus, the bank line of the ancient river for the sedimentation of the late Triassic Xujiahe stage of the Sichuan Basin is deduced.