摘要
(1)中国秦岭地区卡林型金矿床在区域上的分布严格受印支-燕山期构造-岩浆带控制,区域上与Hg、Sb、As矿密切共生;(2)主要赋矿地层为泥盆系,成矿时代214×106~142×106a;(3)主要容矿岩石为浅变质细碎屑岩,钠长碳酸盐角砾岩及碳硅泥质岩;(4)成矿物质(Au)主体来自深部;(5)成矿流体为岩浆热浪(主体)+建造水+大气降水组成的混合热液,成矿环境为中低温浅成环境;(6)依矿床形成深度和物理化学条件等差异,将其划分为深部带型、中部带型和浅部带型三亚类。
In areas, the deposits are strictly controlled by structures and magmatic rock zones of Indo-Chinese - Yenshan epoch, and closely association of An with Hg, Sb, As. (2 ) The host-strate is Devonians system and with metallogenetic epoch of 214 ×106~142×106a. (3) The ore-bearing rock are mainly fine elastic rocks, breccia of albite-carbonate and carbonaceous- siliceous argillaceous rock.(4) The ore-forming metal is from the deep of earth crust. (5) The ore-forming solution consists of mixed hydrothermal solution including of magmatic hydorthermal (main) + formation-water + air- water and the environment of ore-forming is low-medium temperature. (6) According to the ore-forming depth and condition of physical-chemical, these deposits may be classified into three class: deep-zone type, mesozone type and epizone type.
出处
《广西科学》
CAS
1995年第4期24-27,共4页
Guangxi Sciences
关键词
卡林型金矿
成矿模型
秦岭
Carlin-type gold deposits
Metaliogenic model
Qinling