内蒙古乌奴耳铅锌银钼矿床蚀变矿物分带及原生晕特征

范谢均; 吕新彪; 柳潇; 刘龙

doi:10.3799/dqkx.2020.037

Volume 46 Issue 3

Mar. 2021

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Article Navigation > Earth Science > 2021 > 46(3): 1083-1099

Fan Xiejun, Lü Xinbiao, Liu Xiao, Liu Long, 2021. Zonation of Alteration Mineral and Primary Halo in the Wunuer Pb-Zn-Ag-Mo Ore Deposit, Inner Mongolia, NE China. Earth Science, 46(3): 1083-1099. doi: 10.3799/dqkx.2020.037

Citation:

Fan Xiejun, Lü Xinbiao, Liu Xiao, Liu Long, 2021. Zonation of Alteration Mineral and Primary Halo in the Wunuer Pb-Zn-Ag-Mo Ore Deposit, Inner Mongolia, NE China. Earth Science, 46(3): 1083-1099. doi: 10.3799/dqkx.2020.037

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Zonation of Alteration Mineral and Primary Halo in the Wunuer Pb-Zn-Ag-Mo Ore Deposit, Inner Mongolia, NE China

doi: 10.3799/dqkx.2020.037

Fan Xiejun^{1
,
,},
Lü Xinbiao^{1, 2
,
,
,},
Liu Xiao³,
Liu Long¹

1.
School of Earth Resources, China University of Geosciences, Wuhan 430074, China
2.
Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China
3.
Wuhan Center of Geological Survey, CGS, Wuhan 430205, China

Received Date: 2020-11-01
Publish Date: 2021-03-15

Abstract

Abstract

The Wunuer ore deposit is a newly found terrestrial volcanic type deposit, which is located in the middle segment of the Great Xing'an range where is covered by Mesozoic volcanic rocks. In order to provide information for deep prospecting and exploration in this area, in this study, detailed field deposit geology, alteration mineral zonation and primary halo of wall rocks in the deposit were studied. There are obvious multi-stage mineralization characteristics in the Wunuer deposit, including (1) the first stage porphyry type molybdenum mineralization, which mainly occurs in the apical portion of the granite porphyry deep in the deposit; (2) the second stage magmatic hydrothermal fluid (cryptoexplosive breccia) type lead-zinc mineralization, which mainly occurs in cryptoexplosive breccia in the apical portion of the granite porphyry and surrounding wall rocks; (3) the third stage epithermal type lead-zinc-silver mineralization, which mainly occurs in fractures hosted by wall rock in shallow. We have identified at least two tectonic events closely related to ore forming process, which are important ore-controlling factors and prospecting markers. There is obvious wall rock alteration zone in the Wunuer deposit, and the altered mineral assemblage distribution has a good correspondence with the occurrence of ore body, which is one of the important processing markers. Primary halo anomalies of wall rocks are also well correlated with ore bodies, which show obvious lead-near-tail-halo elements zonation, which can provide reliable information for prospecting in the deep of the Wunuer deposit. Based on the above characteristics of ore prospecting information, it is predicted that there is blind ore body deep in the 207 exploration line in Ⅱ of the Wunuer deposit.
- Wunuer,
- Inner Mongolia,
- primary halo,
- alteration mineral,
- XRF,
- XRD,
- mineralogy

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References(75)

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Zonation of Alteration Mineral and Primary Halo in the Wunuer Pb-Zn-Ag-Mo Ore Deposit, Inner Mongolia, NE China

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