青海拉陵高里河上游地区铁金多金属矿地质特征及找矿方向
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摘要
拉陵高里河上游地区位于东昆仑伯喀里克—香日德印支期金、铅、锌、铜成矿带西段。研究认为,矿区成矿类型分别为构造蚀变岩型金矿床和矽卡岩型铁矿床,成矿时代为印支早期。矿区中已发现的金矿带在地表或深部具有较好的找矿空间,铁矿地表已初具规模,深部已有成矿事实。故下一步工作应针对含矿构造破碎带,采用探矿工程与化探工作相结合等手段开展矿区地表及深部找矿工作,寻找金矿体;而矽卡岩型铁多金属矿,应与物探相结合,加大深部勘查力度,扩大铁矿资源量,综合评价区内矿产资源,争取该矿区找矿的更大突破。
The upper reaches of the Lalinggaoli River are located in the western part of the gold,lead,zinc and copper metallogenic belts of the Berklik-Xiangriide Indosinian in the eastern Kunlun Mountains. The metallogenic types in the mining area are gold deposits of tectonically altered rock type and iron deposits of skarn type. The metallogenic age is early Indosinian. The gold ore belts discovered in the mining area have better prospecting space on the surface or in the deep. The iron ore has begun to take shape on the surface,and the metallogenic facts have existed in the deep.. All these indicate the facts of iron deposit formed on the surface and mineralization happened in the deep. Therefore,the next step should be focused to the fracture zone of ore-bearing structure,by using prospecting engineering and geochemical exploration methods to cover surface and deep prospecting work of the mining area,in order to identify the gold orebody. As for the Skarn type iron polymetallic ore deposit,geophysical prospecting methods should be considered for prospection in the deep,geophysical exploration should be carried out for increasing deep exploration,in order to enlarge iron resources,and get comprehensively evaluation of mineral resources in this area,striving for greater breakthroughs in prospecting.
The upper reaches of the Lalinggaoli River are located in the western part of the gold,lead,zinc and copper metallogenic belts of the Berklik-Xiangriide Indosinian in the eastern Kunlun Mountains. The metallogenic types in the mining area are gold deposits of tectonically altered rock type and iron deposits of skarn type. The metallogenic age is early Indosinian. The gold ore belts discovered in the mining area have better prospecting space on the surface or in the deep. The iron ore has begun to take shape on the surface,and the metallogenic facts have existed in the deep.. All these indicate the facts of iron deposit formed on the surface and mineralization happened in the deep. Therefore,the next step should be focused to the fracture zone of ore-bearing structure,by using prospecting engineering and geochemical exploration methods to cover surface and deep prospecting work of the mining area,in order to identify the gold orebody. As for the Skarn type iron polymetallic ore deposit,geophysical prospecting methods should be considered for prospection in the deep,geophysical exploration should be carried out for increasing deep exploration,in order to enlarge iron resources,and get comprehensively evaluation of mineral resources in this area,striving for greater breakthroughs in prospecting.
引文
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青海省地质调查院.青海1∶5万拉陵灶火地区地质矿产调查项目报告[R].
青海省地质调查院.青海省格尔木市拉陵灶火地区铜多金属矿整装勘查区找矿部署研究[R].
薛春纪,祁思敬,隗合明,等.2013.基础矿床学[M].北京:地质出版社.
张雪亭,杨生德,杨站君,等.2007.青海省板块构造研究:1∶100万青海省大地构造图说明书[M].北京:地质出版社.