| 阴建定,寿立永.陕西白河县裴家河铜矿地质特征及找矿方向[J].矿产勘查,2021,12(8):1727-1733 |
| 陕西白河县裴家河铜矿地质特征及找矿方向 |
| Geological characteristics and prospecting direction for the Peijiahe copper mine in Baihe County, Shaanxi Province |
| 投稿时间：2020-07-22 |
| DOI： |
| 中文关键词: 铜矿床 成矿地质特征 找矿方向 裴家河 |
| 英文关键词: copper deposit metallogenic geological feature ore-prospecting trend Peijiahe |
| 基金项目:本文受陕西省地质勘查基金项目“陕西省白河县裴家河地区铜铅锌多金属矿预普查”(61201304227)资助。 |
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| 中文摘要: |
| 裴家河铜矿床位于南秦岭边缘海盆 —留坝 —旬阳晚古生代陆源海盆东南缘，为该区近年新发现的重要铜矿床。矿体主要赋存于下志留统梅子垭组细碎屑岩、碎屑岩沉积建造中，共圈定 6条矿体，其中 K Ⅰ1、K Ⅰ2矿体为主矿体，呈左行雁列式排列，走向为北西—南东向，矿体断续出露长度 100~340 m，延深 160~322 m，厚度为 1.00~3.01 m，矿体品位 0.70%~1.68%。赋矿围岩为(炭质)绢云母千枚岩夹硅质条带，总体上受北东 -南西向展布的断裂和复式褶皱构造控制。近矿围岩蚀变类型主要为硅化、绢云母化、(磁)黄铁矿化。矿石自然类型为硫化矿石，工业类型为脉状铜矿。岩性及构造为矿床的主要控矿因素，矿床 成因属热液充填型脉状矿床。 |
| 英文摘要: |
| Peijiahe copper deposit is located in the south Qinling marginal basin— leave dam— XunYang late Paleozoic terrigenous basin in the southeast. It is an important copper deposit newly discovered in recent years in this area. The ore bodies mainly occur in the .ne clastic and clastic sedimentary formations of the Lower Silurian Meiziya formation, and a total of 6 orebodies have been discovered. Among them, No.K Ⅰ1 and K Ⅰ 2 are the main orebody, concealed in a left echelon pattern, rending NW-Southeast. The ore bodies have intermittent outburst length of 100~340 m, extension depth of 160~322 m, and thickness of 1.00~3.01 m. The orebody has a grade of 0.70%~1.68%. The host rocks are (carbonaceous) sericite phyllite interbedded with siliceous bands, which are generally controlled by NE-SW trending faults and complex fold structures. The alteration types of near ore surrounding rock are mainly silici.cation, sericitization and (magnetic) pyritization. The natural type of ore is sul.de ore and the industrial type is vein copper ore. Lithology and structure are the main ore-controlling factors of the deposit. The genesis of the deposit belongs to hydrothermal .lling metasomatic. |
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