蒙阴县埠洼金矿床地质特征及成因

GEOLOGICAL CHARACTERISTICS AND GENESIS OF

摘要:

埠洼金矿产于泰山（岩）群ＴＴＧ岩系中，赋存于中浅层次韧性、韧脆性剪切带内，矿体呈右行侧列式透镜体分布，成矿物质及热液主要来源于泰山（岩）群绿岩地层，其δ１８Ｏ值为５．４０‰～８．９８‰，δ３４Ｓ值为２．０５‰～４．０６‰，该矿床的成矿作用与韧性剪切变形变质导致的动力分异作用密切相关，赋矿空间为韧脆性剪切作用形成的扩容带。

Abstract:

Buwa gold deposit occur in mediumshallow subductile and ductilebritile shear belts which are in TTG rock series.The orebodies spread as lens in righthanded, and laterallined form.Oreforming substance and thermal solution are mainly originated from the greenstone of Taishan group,and the δΟ 18 value is from 5.4‰ to 8.98‰ and δ 34 S from 2.05‰ to 4.06‰.Its mineralization is mainly related to dynamic differentiation which is caused by metamorphism and deformation of ductile shears, and the orebodi...