APPLICATION AND EXPLORATION OF GEOPHYSICAL METHODS IN GEOLOGICAL MAPPING IN STRONGLY WEATHERED AREA

CHEN Song; CHEN Chang-jing; WU Jun; LIU Lian; BU Jian-jun

2017 Vol. 23, No. 2

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CHEN Song, CHEN Chang-jing, WU Jun, LIU Lian, BU Jian-jun. APPLICATION AND EXPLORATION OF GEOPHYSICAL METHODS IN GEOLOGICAL MAPPING IN STRONGLY WEATHERED AREA[J]. Journal of Geomechanics, 2017, 23(2): 206-213.

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CHEN Song, CHEN Chang-jing, WU Jun, LIU Lian, BU Jian-jun. APPLICATION AND EXPLORATION OF GEOPHYSICAL METHODS IN GEOLOGICAL MAPPING IN STRONGLY WEATHERED AREA[J]. Journal of Geomechanics, 2017, 23(2): 206-213.

APPLICATION AND EXPLORATION OF GEOPHYSICAL METHODS IN GEOLOGICAL MAPPING IN STRONGLY WEATHERED AREA

1.
Wuhan Center of Geological Survey, CGS, Wuhan 430205, Hubei, China
2.
Geological Exploration Technologies institute of Anhui Province, Hefei 230031, Anhui, China

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Corresponding author: BU Jian-jun, jianjunbu@cug.edu.cn

Received Date: 25 September 2016

Publish Date: 25 April 2017

Abstract

Abstract

Due to the unique geological feature of Southern China area, such as thick overburden layerfew outcrops, thick-growing vegetation and difficult access, it is difficult to effectively identify the geological characteristics of weathered layers and its underlying strata, rocks, structures and minerals by means of traditional geological mapping methods. Through comprehensive geophysical methods including shallow earthquake, high density resistivity and EH4 electromagnetic imaging, the geological characteristics like weathering layer thickness, bedrock lithology and occurrence, and buried fault are tested. By analyzing the data obtained from this 3 methods and the results of field investigation, the validity and applicability of this 3 geophysical methods are studied, and a series of geophysical methods for geological mapping in strongly weathered area are preliminarily summarized.
- shallow earthquake /
- high density resistivity /
- EH4 electromagnetic imaging /
- strongly weathered area /
- mapping

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References

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