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Article by Wang Q
Article by Yang Y
Article by Han S
Article by Sun D
Article by Li L
Article by Wu J
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Application of high precision magnetic survey to prospecting in Yu'erya gold deposit of eastern Hebei
WANG Qing-lei1,2, YANG Yan-chen1, HAN Shi-jiong1, SUN De-you1, LI Lin-wei3, WU Jing-rong3
1. College of Earth Sciences, Jilin University, Changchun 130061, China;
2. Shanghai Municipal Engineering Design Institute(Group) Co., Ltd, Shanghai 200092, China;
3. Beijing Gold Geological Exploration Co., Ltd, Beijing 100070, China
Abstract: Based on the geological survey of 1:10 000 and large amount geological observations in the underground tunnels and logging in mining wells, polarization, continuation and derivation methods were applied to process the high precision magnetic survey data of 1:10 000 scale. The magnetic anomalies in the Yu'erya mining district were classified into low positive anomalies, low negative anomalies and moderate to high positive anomalies. 31 linear structures extended along different directions were interpreted, most of which are northeast and northwest trending, which formed the tectonic framework of the mine area. Vertical second order derivatives at 4 vertical heights (50 m, 100 m, 200 m and 500 m) of the magnetic pole anomalies are calculated, the morphology is controlled by NE, NW and NW structures, and distributed along the northeast direction. According to the ore controlling rules of the known ore bodies and the characteristics of rock mass control, the delineation of metallogenic prospect in the study area is based on the form of metallogenic magnetic body, and the change of occurrence of the mineralization, the intersection position of the northeast structure with the northwest, northsouth and eastwest structures, and the alteration sites of pyrite, silicification, marbleization and sericitization.
Keywords: high precision magnetic survey   Yu'erya gold deposit   ore-controlling structure   prospecting mining area  
�ո����� 2017-06-09 �޻����� 2018-01-11 ����淢������  
DOI: 10.3969/j.issn.1004-5589.2018.01.021
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