新疆维权银铜多金属矿地质—地球物理找矿模式及成矿模型

doi:10.11720/wtyht.2022.0055

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Abstract

The Weiquan silver-copper polymetallic deposit has received extensive attention because of its unique genesis. This study analyzed the anomaly characteristics shown in the integrated gravity-magnetic-electrical geophysical planes and sections of the Weiquan silver-copper polymetallic deposit. Then, it obtained the interpretation model of geophysical anomalies through the forward and inverse calculations of the typical sections. Based on the distribution pattern of existing ore bodies and the metallogenic model summarized in previous studies, this study established the geological-geophysical prospecting mode of this area. Moreover, this study proposed the geological-geophysical prospecting model of this area, aiming to provide a basis for prospecting prediction.

Key words： Weiquan silver-copper polymetallic deposit geophysics prospecting mode prospecting prediction

Received: 10 February 2022 Published: 17 August 2022

ZTFLH:

P631

Corresponding Authors: Jiang Wen E-mail: 429031720@qq.com;jiangwen66@aliyun.com

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Cite this article:

Jun Feng,Wen Jiang,Zheng Zhang. Geophysical prospecting mode and metallogenic model of the Weiquan silver-copper polymetallic deposit in Xinjiang[J]. Geophysical and Geochemical Exploration, 2022, 46(4): 868-876.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2022.0055 OR https://www.wutanyuhuatan.com/EN/Y2022/V46/I4/868

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Geological and mineral map of the Weiquan area^[10]

Statistical table of physical properties in the Weiquan silver-copper polymetallic deposit

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Plane figure of Bouguer gravity anomalies(a) and aeromagnetic anomalies(b) in the Weiquan area^[10]

Sectional drawing in plane by IP method in central gradient array in the Weiquan area
1—apparent resistivity curve;2—apparent polarizability curve and code of anomaly;3—typical profiles for geophysical prospecting;4—inferred fault;5—copper-silver ore;6—zinc ore occurrence;7—iron ore occurrence;8—copper ore occurrence;9—copper-iron ore occurrence

Diagram for models and profile anomalies by integrated geophysical prospecting on the Line 0 of the Weiquan mineral area
1—inverse high magnetic body and numbering;2—inverse high polarization body and numbering;3—IP intermediate gradient reflective high resistance tectonic zone;4—silver deposits in drilled holes and lead-zinc mineralizing deposits in drilled holes;5—the position and numbering of drilled holes

Table of the result for interpreted model on the Line 0 of the Weiquan mineral area

Table of the result for interpreted model on the Line 0 of the Yuebing mineral area

Diagram for models and profile anomalies by integrated geophysical prospecting on the Line 0 of the Yuebing mineral area
1—gravity inverse highly dense body ; 2—magnetic inverse high magnet and numbering;3—IP intermediate gradient inverse high polarization body and numbering ;4—IP intermediate gradient reflective high resistance tectonic zone(F₁);5—TEM reflective tectonic zone(F₂);6—silver deposits in drilled holes;7—copper deposits in drilled holes;8—lead-zinc mineralizing deposits in drilled holes;9—the position and numbering of drilled holes

Correlation diagram of geophysical prospected anomalies in comparison with the geology and geophysics metallogenic model
1—volcanic sedimentary rock;2—volcanic sedimentary rock;3—acidic rock mass in Weiquan;4—iron mineralization;5—lead-zinc mineralization;6—copper-silver mineralization;7—secondary fault structure

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