豫西上宫金矿田F60顺层滑脱构造特征及找矿意义
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摘要
依托前期开展的全国老矿山找矿项目资料以及正在开展的整装勘查项目成果,对F60顺层滑脱构造特征进行了初步研究,认为该构造是在熊耳群火山岩内部形成的一组平行于不整合面、具轻微滑动的重力滑脱构造,其严格控制了薄脉型金—银—铅—锌矿体的产出。其形成机制是:花山岩体上侵,近岩体的火山岩地层抬升,受重力及岩体斜向剪切力影响,火山岩内的薄弱层发生微弱的滑动,从而形成一系列层间滑脱构造。其成矿模式对区域找矿工作具有一定的指导意义。
According to achievements of the national old mine prospecting projects and the underway integrated exploration projects,this paper studied the characteristics of F60 Bedding Detachment and got conclusions as follows: the structure is a detachment with slight sliding,which is formed inside of the Xiong'er Group volcano rocks and is parallel to unconformity surface. This thin vein type of Au-Ag-Pb-Zn ore bodies are strictly controlled by the detachment. It's formation mechanism is as follows: the volcano rock strata uplift because of intrusion of Huashan rock,then the weak layer in volcanic rock slightly slip and a series of bedding detachments are formed. The paper conclude that the metallogenic model is of great significance for the regional prospecting.
According to achievements of the national old mine prospecting projects and the underway integrated exploration projects,this paper studied the characteristics of F60 Bedding Detachment and got conclusions as follows: the structure is a detachment with slight sliding,which is formed inside of the Xiong'er Group volcano rocks and is parallel to unconformity surface. This thin vein type of Au-Ag-Pb-Zn ore bodies are strictly controlled by the detachment. It's formation mechanism is as follows: the volcano rock strata uplift because of intrusion of Huashan rock,then the weak layer in volcanic rock slightly slip and a series of bedding detachments are formed. The paper conclude that the metallogenic model is of great significance for the regional prospecting.
引文
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范光,张子敏,张邻素.1995.熊耳山区花岗岩特征及其与金矿化的关系[J].铀矿地质,11(4):207-213.
沈远超,杨金中,刘铁兵,等.2002.胶东新型金矿——层间滑动角砾岩型金矿床[J].地质与勘探,38(2):11-14.
苏尚国,汤中立,罗照华,等.2014.岩浆通道成矿系统[J].岩石学报,30(11):3120-3130.
王长明,邓军,张寿庭.2006.河南熊耳山地区花山花岗岩与金矿化的关系[J].现代地质,20(2):315-321.
汪江河,付法凯,燕建设,等.2014.熊耳山北麓中深部金矿成矿规律与找矿方向研究[R].洛阳:河南省地质矿产勘查开发局第一地质矿产调查院.
王卫星,邓军,龚庆杰,等.2010.豫西熊耳山五丈山、花山、合峪花岗岩体与金成矿关系[J].黄金,31(4):12-17.
汪洋,铁健康,牛树银,等.2015.熊耳山地区七里坪F60-Ⅰ金银矿体地质特征及趋势预测成效[J].黄金科学技术,23(2):38-44.
吴富强,赵追,和玉彬,等.1998.湖北丰山矿田拆离滑脱构造厘定及控岩控矿规律研究[J].河南地质,16(2):8-14.
颜正信,汪江河,刘耀文,等.2015.河南省洛宁县上宫金矿接替资源勘查报告[R].洛阳:河南省地质矿产勘查开发局第一地质矿产调查院.
叶会寿.2006.华北陆块南缘中生代构造演化与铅锌银成矿作用[D].中国地质科学院.
张明亮,梁海彬,轩慎英.2008.河南省熊耳山地区金及多金属矿远景分析[J].矿床地质,27(S1):177-181.
支风岐,刘灵恩,索勇.2004.河南省熊耳山西段沙沟西银铅矿区地质特征及找矿前景分析[J].矿产与地质,18(1):35-38.