烟台市牟平区宋家沟金矿床成因及找矿方向

Origin and Ore-probing Direction of Songjiagou Gold Deposit in Muping Area, Yantai City

摘要:

宋家沟金矿产于早白垩世莱阳群砾岩中 ,为受断裂、裂隙密集带控制的蚀变砾岩型金矿床。该金矿床为一隐伏矿床 ,与产于盆缘的蓬家夼蚀变岩型金矿的成矿条件相似 ,控矿的主导因素为断裂构造 ,成矿时代为中生代燕山晚期。

Abstract:

Songjiagou gold deposit occurrs in conglomerates of Pre-cretaceous Laiyang group, which is altered conglomerate type gold deposit controlled by concerntrating belt of faults and cracks. This gold deposit is a hidden one, and has the same characteristics with Pengjiakuang altered rocks type gold deposit occurring at the edge of basin. The major control factors of the deposit are faults, and the ore-forming age is late Yanshan period of Mesozoic.