摘要
本文从地球化学硫、铅同位素组成角度出发,对湘黔边境铅锌矿带的成矿时代、成矿温度、物质来源及矿床成因进行探讨。该矿带铅锌矿床属沉积—改造型矿床,成矿金属物质来源于地幔,矿质硫来源于矿层上覆中上寒武统海相蒸发白云岩中的膏盐;成矿温度为中—低温(135—200℃);成矿时代主要是加里东期,加里东早期形成矿源层,晚期溶解、活化、混合、改造矿源层形成矿床。该矿带属加拿大派纳派因特式铅锌矿,是寻找以锌为主的铅锌矿很有前景的地区。
From the angle of geochemistry S and Pb isotope form, this paper made a discussion on minerogenetic epoch, minerogenetic tempreture, materal resource and ore deposit origin of lead-zinc ore-belt in the border of Guizhou-Hunan, its ore-belt lead-zinc ore deposit belongs to sedimentary-improvement type deposit, which minerogenetic metal materal origin mantle, ore-S origin clay-salt of series sea evaporation dolomite of upper Cambrian period ore-bed; the minerogenetic tempreture is mid-low temperture (135-200℃); the minerogenetic ages is mainly Jialidong period, Jialidong early period form ore-resource bed, its late period solution, activating , mixed and transformation ore-resource bed form ore deposit. Its ore-belt belong to lead-zinc ore of Yitesi of Na group of Canada big group, which is bright prospects area of finding lead -zinc ore of main zinc.
出处
《贵州地质》
1992年第3期246-254,共9页
Guizhou Geology
