贵州遵义红花岗区深溪锰矿矿床地质特征研究

Geological Characteristics of Shenxi Manganese Deposit in Honghuagang District,Zunyi,Guizhou

遵义深溪锰矿资源丰富,为了服务该地区锰矿整装勘探与开发,本次通过野外调查、测试分析等,研究矿体特征、矿石特征、围岩与夹石等矿床地质特征,探讨分析矿床成因与找矿标志。研究结果表明:深溪锰矿床含锰岩系为茅口组第三段,锰矿层为深灰色、黑灰色块状菱锰矿,矿体呈层状、似层状产出,平均品位为17.54%;矿层平均厚度为1.46 m。矿石矿物以菱锰矿为主,矿石自然类型为碳酸锰矿石。矿石主要为球粒结构、晶粒结构和碎屑结构,主要为块状构造和假角砾(网脉)状构造。矿石主要有益组分为锰,锰矿石密度为2.80~3.45 g/cm^(3)。遵义锰矿为内生外成的气液喷溢沉积型锰矿床,其形成和分布受黔北裂谷盆地遵义次级裂谷盆地控制。勘查区存在地层、构造和矿石等3类找矿标志。

Zunyi Shenxi manganese ore is rich in resources.In order to serve the whole exploration and development of manganese ore in this area,we have made a research of the characteristics of ore body,including the ore characteristics,surrounding rock and intercalated stone deposits.Through field investigation and analysis,we have also known of the genesis and prospecting mark of ore deposits.According to the results,we think that the manganese-bearing rock series of Shenxi manganese ore bed is the third section of Maokou formation.The manganese ore bed is dark gray and black gray block rhombus,and the ore body is layered and layered.The average grade is 17.54%,and the average thickness of ore bed is 1.46 m.The ore mineral is mainly rhombus manganese ore,and the natural type of ore is manganese carbonate ore.Also,the ore is mainly spherical grain structure,grain structure and clastic structure.It is mainly block structure and pseudo breccia(net vein)structure.The ore is mainly composed of manganese(Mn),the density of manganese ore is 2.80~3.45 g/cm 3.Zunyi Manganese Mine is an endogenous gas-liquid jet-overflow sedimentary manganese deposit.Its formation and distribution are controlled by Zunyi secondary rift basin in northern Guizhou rift basin.There are three types of prospecting signs in the exploration area,such as strata,structure and ore.