隐伏岩浆型铜镍矿空—地—井协同勘查技术体系

doi:10.11720/wtyht.2022.1562

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Abstract

In recent years, prospecting in coverage areas has become an important topic in China due to the strong demand for energy and mineral resources, and there is an urgent need for new targeted methods and technologies of prospecting. This study put forward a technology system for the collaborative and rapid prospecting of copper-nickel deposits in coverage areas that combines airborne-ground-borehole prospecting methods and technologies. Meanwhile, this study established the framework and description of the collaborative, rapid, and effective exploration technology system. Taking the terrain and geology of coverage areas, as well as the distribution characteristics of deep mineral resources in the area as preconditions, this technology system mainly uses the methods of aero geophysics combined with ground and borehole geophysical exploration and focuses on big data fusion, weak information extraction, and geophysical-geological modeling methods. Meanwhile, it takes geological structure and metallogenic theory as guidance. This technical system has been verified in the exploration of the concealed magmatic copper-nickel deposit in the Qixin area, Ruoqiang County, Xinjiang, achieving positive results.

Key words： magmatic copper-nickel deposits collaborative airborne-ground-borehole geophysical exploration organizational collaboration technical collaboration technology system

Received: 14 October 2021 Published: 21 June 2022

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	Articles by authors
	Xu-Zhao HUANG
	Zheng-Guo FAN
	Jing-Zi HE
	Teng-Fei GE
	Si-Xun WANG
	Yi MAN
	Peng WANG
	Jun LI
	Heng WANG

Cite this article:

Xu-Zhao HUANG,Zheng-Guo FAN,Jing-Zi HE, et al. A collaborative airborne, ground, and borehole exploration technology system for concealed magmatic copper-nickel deposits[J]. Geophysical and Geochemical Exploration, 2022, 46(3): 597-607.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2022.1562 OR https://www.wutanyuhuatan.com/EN/Y2022/V46/I3/597

Work flow chart of rapid-collaborative exploration technology system for magmatic Cu-Ni deposit

21]) and regional location of the study area(b) (modified after [22])
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Sketch map of geotectonics and distribution of mafic-ultramafic complexes in Eastern Tianshan—Beishan region(a) (modified after [21]) and regional location of the study area(b) (modified after [22])

Part achievement maps of Qixin prospecting area
a—shadow map of aeromagnetic ΔT; b—shadow map of aeromagnetic vertical gradient; c—shadow map of aeromagnetic vertical component; d—shadow map of the 0th track of airborne electromagnetic (TEM); e—shadow map of total trace of airborne gamma spectrum; f—inferred lithologic structure map, the white frame is the range of favorable prospecting area in Qibei; 1—inferred ultrabasic intrusive rock; 2—infer basic intrusive rocks characterized by negative magnetic field; 3—infer basic intrusive rocks characterized by positive magnetic field; 4—inferred olivine norite, pyroxene olivine and gabbro diabase; 5—inferred weakly magnetic olivine gabbro; 6—inferred diorite; 7—inferred Permian acid intrusive rock; 8—inferred Hongliuhe formation of Permian; 9—inferred Carboniferous Gandun formation; 10—inferred Paleoproterozoic Dunhuang rock group; 11—inferred fracture

Comprehensive geophysical map of Qibei prospecting target area
a—ground magnetic ΔT contour map; b—residual gravity contour map; c—apparent resistivity contour map; d—apparentpolarizabilitycontour map

3D geophysical inversion source data

Apparent density(a), apparent susceptibility (b) and fusion classification result(c) of cross section 4950

Fusion classification result of apparent suscepti-bility and apparent density of section 4950

Comprehensive section results of line 4 in Qixin exploration area

Logging curve of hole ZK4-2 in Qixin exploration area

Three dimensional geological model of Qixin complex

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