江苏溧水卧龙山锶矿床地质特征及找矿方向

发布时间：2018-01-07 21:33

本文关键词：江苏溧水卧龙山锶矿床地质特征及找矿方向　出处：《矿床地质》2016年04期 　论文类型：期刊论文

【摘要】：卧龙山锶矿床是江苏省溧水盆地内新发现的热液充填型锶矿床,目前控制规模为中型。矿床地质特征研究表明,卧龙山锶矿床矿体的赋存位置及产状均严格受NW向断裂构造的控制;矿石自然类型以致密块状矿石为主,矿石结构以自形板片状为主,矿石构造以块状、角砾状和网脉状为主;围岩蚀变表现为中低温热液蚀变特征,且沿矿区NW向断裂呈线状分布。根据矿物的世代和穿插关系,将锶矿化划分为天青石-黄铁矿阶段、天青石阶段和方解石-天青石阶段。查明了矿区NW向构造是主要控矿因素,亦是主要找矿标志,而NE向构造是破矿构造。提出了矿区NW向构造是区域主干断裂右行扭动所派生的次级断裂构造;而NE向构造是区域主干断裂左行扭动所派生的次级断裂构造;认为矿区锶矿化发生在主干断裂右行扭动之后,左行扭动之前,并赋存在右行扭动派生的NW向断裂构造中。因此,溧水盆地锶矿勘查重点(找矿方向)应沿着开太-白马山主干断裂开展,找寻其右行扭动派生的NW向构造。
[Abstract]:Wolong mountain strontium deposit is hydrothermal filling type strontium deposit newly discovered in Jiangsu province in the Lishui basin, the control of medium scale. Study on the geological characteristics of the deposit indicates that the Wolong mountain strontium deposit ore occurrence position and occurrence are strictly controlled by the NW to the control of faults; the natural types of ores in dense massive ore, ore structure mainly euhedral sheet, ore structures are massive, brecciated and stockwork; wall rock alteration is in low temperature hydrothermal alteration characteristics, and along the mining area NW trending linear distribution. According to the mineral generation and cross relations will be divided into celestite mineralization strontium pyrite stage, celestite stage and calcite celestite stage. Identified NW to mine structure is the main ore controlling factors, is also the main prospecting marks, and the NE structure is broken ore structure is proposed. The NW structure is to mine the regional main faults derived from right twist The secondary faults; and the NE structure is a secondary faults regional main faults left twist derived; that strontium mineralization occurred in the mining area after the main fault right before the left twist, twist, and exist right twist derived NW faults. Therefore, the Li River Basin strontium ore exploration focus (prospecting direction) should be along too - Baima Mountain trunk fracture development, find the right twist derived NW structures.

【作者单位】：江苏省地质调查研究院;吉林省地质调查院;
【基金】：国家自然科学基金项目(编号:41102123) 中国地质调查局项目(编号:12120114007101)联合资助
【分类号】：P618.78
【正文快照】： ploration of Sr deposit in the Lishui basin should be focused on the Kaitai-Baimashan fault,and the search for theright twisting derived NW-striking faults might be the prospecting direction in the future.长江中下游成矿带位于扬子板块北缘,华北板块和秦岭造

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