广域电磁法在宜春某地地热勘查中的应用

doi:10.11720/wtyht.2020.0216

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Abstract

This study area is not only covered by Quaternary strata,with unclear stratigraphic division and complex faults,but also strongly interfered by high-voltage transmission lines and corridors in deep geothermal exploration.Through collecting and analyzing the existing geological materials in the survey area,the geothermal metallogenic model of the area was constructed.The combination of high-density electrical method and wide field electromagnetic method was used to improve the resolution of the results,divide the geological information such as stratigraphic and fault,and infer the favorable position of geothermal mineralization.It has been proved by drilling that good geothermal exploration effect can be achieved.

Key words： wide field electromagnetic method geothermal energy high-density electrical method

Received: 27 April 2020 Published: 26 October 2020

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	Articles by authors
	Zhi-Feng WEI
	Hou-Yang CHEN
	Xi-Quan WU

Cite this article:

Zhi-Feng WEI,Hou-Yang CHEN,Xi-Quan WU. The application of wide field electromagnetic method to geothermal exploration in Yichun[J]. Geophysical and Geochemical Exploration, 2020, 44(5): 1009-1018.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2020.0216 OR https://www.wutanyuhuatan.com/EN/Y2020/V44/I5/1009

Geological map of work area

Geothermal geological map of Yichun Wentang hot spring

Schematic diagram of the convective geothermal water resource formation mode of "Wentang type"

Survey line layout

Signal diagram of electric field collected with a receiving and transmitting distance of 9 km

Signal diagram of electric field collected with a receiving and transmitting distance of 11.5 km

Signal diagram of electric field collected with a receiving and transmitting distance of 14.5 km

Data processing process

Results of geophysical inference and interpretation of MHQ5 line(left),WN1 line(middle) and WN2 line(right)

Three dimensional section of geophysical inference and interpretation results

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