A study of tectonic style of the polymetallic ore concentration area in Southern Lhasa terrane——Evidence from deep seismic reflection profile

XU Tairan; LU Zhanwu; ZHANG Xuemei; LI Wenhui; JIA Junlian

2019 Vol. 38, No. 10

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XU Tairan, LU Zhanwu, ZHANG Xuemei, LI Wenhui, JIA Junlian. A study of tectonic style of the polymetallic ore concentration area in Southern Lhasa terrane——Evidence from deep seismic reflection profile[J]. Geological Bulletin of China, 2019, 38(10): 1595-1602.

Citation:

XU Tairan, LU Zhanwu, ZHANG Xuemei, LI Wenhui, JIA Junlian. A study of tectonic style of the polymetallic ore concentration area in Southern Lhasa terrane——Evidence from deep seismic reflection profile[J]. Geological Bulletin of China, 2019, 38(10): 1595-1602.

A study of tectonic style of the polymetallic ore concentration area in Southern Lhasa terrane——Evidence from deep seismic reflection profile

1.
China Earthquake Networks Center, Beijing 100045, China
2.
Key Laboratory of Deep Dynamics, Ministry of Natural Resources/Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China
3.
Eastern Geophysical Exploration Co., Ltd., Research Center, China National Petroleum Corporation, Zhuozhou 072750, Hebei, China

More Information

Corresponding author: LU Zhanwu, luzhanwu78@163.com

Received Date: 11 January 2019

Revised Date: 25 May 2019

Publish Date: 15 October 2019

Abstract

Abstract

The Niangre and Xiongcun areas in the middle section of the Gangdise metallogenic belt have gradually attracted attention due to the continuous discovery of metal deposits such as iron and copper deposits in recent years. However, due to the lack of sufficient geophysical data, the fine structure of the crust in this area has not been clearly understood, which restricts the study of the ore-forming background of this area. Employing the data of 130km deep seismic reflection profile of the Xiongcun-Niangre ore concentration area and encrypted reflection profile inside 25km of the ore concentration area, the authors carried out data processing of tomographic static correction, denoising, energy compensation and velocity analysis, and obtained the reflection image crustal structure of the Xiongcun-Niangre ore concentration area. Based on the geological data of this area, the authors explained and inferred the deep structure of the ore concentration area, revealed multiple faults in the upper crust and various geological phenomena. It is determined that the fault is related to the direction of the magma flow. The results have certain value for the study of the oreforming background of the ore concentration area.
- deep reflection seismic /
- Gangdise metallogenic belt /
- crustal structure /
- deep background /
- polymetallic ore concentration area

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