青海省枪口南银多金属矿区地球化学异常特征及找矿潜力
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摘要
枪口南银多金属矿位于东昆仑多金属成矿带东段,1:2.5万沟系沉积物测量在矿区圈定出以Ag、Cu、Pb、Zn、Mo为主的综合异常4处.经异常查证,圈出9条矿化带,21条矿(化)体,取得了较好的找矿效果.通过进一步异常查证,在AS1、AS2异常中Ⅶ、Ⅷ和Ⅸ号矿带内圈出银、银铅锌以及银金砷异常高值段,展示出了异常区具较好的银多金属矿的找矿远景. AS3异常内的Ⅳ号含矿花岗斑岩体深部发现多条铜多金属矿(化)体,且发育较强的围岩蚀变,显示具有较好的斑岩型铜多金属矿找矿潜力. AS4异常内Ⅰ-Ⅲ号金矿化带具较好的金多金属矿找矿潜力.本区具有优越的成矿地质条件,化探异常发育,且已发现了较好的银多金属矿找矿信息,充分展示出本区具较大的找矿潜力.
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 andⅨ 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 the Ⅰ-Ⅲ gold mineralized belts in AS4 anomaly have good prospects for Aupolymetallic 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.
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 andⅨ 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 the Ⅰ-Ⅲ gold mineralized belts in AS4 anomaly have good prospects for Aupolymetallic 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.
引文
[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LAICP-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.
(1)周洪兵,等.青海省都兰县枪口南金多金属矿普查报告.四川省冶金地质勘查局水文工程大队,2016.
(1)周洪兵,等.青海省都兰县枪口南金多金属矿普查报告.四川省冶金地质勘查局水文工程大队,2016.
[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LAICP-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.
(1)周洪兵,等.青海省都兰县枪口南金多金属矿普查报告.四川省冶金地质勘查局水文工程大队,2016.
(1)周洪兵,等.青海省都兰县枪口南金多金属矿普查报告.四川省冶金地质勘查局水文工程大队,2016.