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| Keywords | |
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ore- forming characteristics |
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prospecting prediction |
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soil geochemical features |
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Ag-Cu poly- metallic |
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Naganchu |
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Ewenke Banner of Inner Mongolia |
| Authors | |
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NIU Jun-Ping |
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GUAN Shu-Yan |
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ZHANG Li-Shi |
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XIA Lei |
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WANG Zi-Wei |
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ZHOU Jia |
| PubMed | |
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Article by Niu, J. P. |
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Article by Guan, S. Y. |
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Article by Zhang, L. S. |
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Article by Xia, L. |
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Article by Wang, Z. W. |
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Article by Zhou, J. |
Ore-forming characteristics and prospecting prediction of Naganchu Ag-Cu polymetallic exploration area in Ewenke Banner��Inner Mongolia
NIU Jun-Ping, GUAN Shu-Yan, ZHANG Li-Shi, XIA Lei, WANG Zi-Wei, ZHOU Jia
1. Geological Exploration Fund Management Center of Jilin Province��Changchun 130061��China; 2. The Institute of Geophysical Exploration of Jilin Province��Changchun 130026��China
To determine the metallogenic characteristics and ore- prospecting potential of Naganchu area in Ewenke Banner of Inner Mongolia��the geological features and genetic types have been studied��and geophysical and geochemical survey were carried on�� The results indicate that since the Phanerozoic��this area experienced multi- stage tectonic- magmatism��which led to favorable ore- forming geological conditions for endogenous polymetallic mineralization��such as volcanic- clastic strata of Daminshan Formation��faults and fractures in NE trending��as well as mediate- acid intrusions during the Yanshanian�� Polymetallic ore bodies discovered in this area mainly occur in the volcanic- clastic Damin Formation and obviously controlled by the NE trending faults�� The ore has similar mineral assemblages��ore textures and ore structures as ones in mesoepithermal magmatic polymetallic ore�� Inte- grated information indicates that the Naganchu area has favorable Ag-Cu polymetallic mineralization prospect�� Based on soil geochemical survey in scale of 1�� 100 00��induced polarization intermediate gradient survey and ore- finding criterions concluded in this paper��there are 8 geochemical anomalies determined��in which 4 anomalies can be listed as the most favorable in exploration target areas��