摘要
盘县砂锅厂金矿大麦地—小尖山矿段产出层位是峨眉山玄武岩组一段下部凝灰岩,为凝灰岩型金矿。在大麦地—小尖山矿段内发育有较多的断裂构造和与黔西南其他金矿区氧化程度相比较为强烈的褐铁矿,褐铁矿多发育在有断裂构造通过地带,充填在节理、裂隙、破碎带中,呈铁壳、脉状、网格状产出。经系统测量统计并做出褐铁矿走向玫瑰花图显示,褐铁矿与断裂构造有着方向上的关系,并且矿段内的矿(化)点与围岩蚀变中的褐铁矿化、硅化关系十分密切。
Damaidi-Xiaojianshan portion of Shaguochang gold deposit,a tuff-type gold deposit,is located in the tuff lower part of the Emeishan basalt.In comparison with other gold deposits in the southwesten of Guizhou,faults structures are well development and limonite is widespreadly distributed in Damaidi-Xiaojianshan portion.The limonite is chiefly controlled by faults,which is evidenced by limonite strike rose diagrams,and is filled in the joints,fractures and fissures.The occurrences of the limonite include veins,stockworks and crests.Gold mineralization in Damaidi-Xiaojianshan is closely related to silicification and limonitization.
出处
《贵州大学学报（自然科学版）》
2012年第2期63-66,共4页
Journal of Guizhou University:Natural Sciences
