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GEOCHEMICAL ANOMALIES AND PROSPECTING POTENTIAL OF QIANGKOUNAN SLIVER POLYMETALLIC OREFIELD IN QINGHAI PROVINCE |
TAN Yan1, LI Hai-bin1, ZHOU Hong-bing2, ZHANG Yu1 |
1. Qinghai Bureau of Geological Survey, Xining 810000, China; 2. Hydro-engineering Team, Sichuan Bureau of Metallurgical Geology and Exploration, Chengdu 610000, China |
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Abstract The Qiangkounan silver polymetallic orefiled is located in the eastern section of East Kunlun polymetallic metallogenic belt. Four integrated anomalies (AS1-AS4) dominated by Ag, Cu, Pb, Zn and Mo are identified by the 1:25000 scale trench sediment survey. Through anomaly verification, 9 mineralized zones and 21 ore (mineralized) bodies are delineated with good prospecting results. The Ag, Ag-Pb-Zn and Ag-Au-As high value areas in Ⅶ, Ⅷ and Ⅸ ore belts of AS1 and AS2 anomalies are determined by further anomaly verification, which shows a good prospect for Ag-polymetallic deposit in the area. Many Cu-polymetallic ore (mineralized) bodies are found in the deep ore-bearing granite porphyry bodies in AS3 anomaly with strong wall rock alteration, indicating good porphyry Cu-polymetallic deposit prospecting potential, while theⅠ-Ⅲ gold mineralized belts in AS4 anomaly have good prospects for Au-polymetallic deposit. From the above, the favorable metallogenic conditions, developed geochemical anomalies and informative clues of Ag-polymetallic ore prospecting fully show that the area has great prospecting potential.
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Received: 15 March 2018
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[1] |
青海省地质矿产局.青海省区域地质志[M].北京:地质出版社, 1991:521-574.
|
[2] |
丁清峰.东昆仑造山带区域成矿作用与矿产资源评价[D].长春:吉林大学,2004.
|
[3] |
李建亮,鲁海峰,陈静,等.东昆仑东段地区银多金属矿控矿因素及找矿潜力分析[J].地质找矿论丛,2017,32(2):172-179.
|
[4] |
刘会文,李彦强.那日马拉黑地区银多金属矿地质特征及矿床成因[J].西部探矿工程,2009(6):139-142.
|
[5] |
杨涛,周洪兵,郑振华,等.东昆仑那更康切尔银多金属矿床地质特征及成因类型[J].西北地质,2017,50(4):186-199.
|
[6] |
许远平,谢万洪,杨永峰,等.青海东昆仑那更康切尔银矿地质特征及找矿远景浅析[J].新疆地质,2014,32(1):113-117.
|
[7] |
田承盛,张爱奎,袁万明,等.青海东昆仑哈日扎多金属矿区构造活动的锆石裂变径迹定年分析[J].地质与勘探,2014,50(9):833-839.
|
[8] |
范丽琨,蔡岩萍,梁海川,等.东昆仑地质构造及地球动力学演化特征[J].地质调查与研究,2009,32(3):181-186.
|
[9] |
宋忠宝,张雨莲,陈向阳,等.东昆仑哈日扎含矿花岗闪长斑岩LA-ICP-MS锆石U-Pb定年及地质意义[J].矿床地质,2013,32(1):157-168.
|
[10] |
王秉璋.祁漫塔格地质走廊域古生代-中生代火成岩岩石构造组合研究[D].北京:中国地质大学,2011.
|
|
|
|