甘肃阿克塞苦水泉锰矿地质特征及找矿潜力分析

Potential Analysis and Geological Characteristics of Kushuiquan Mn Deposit in Akesai of Gansu

苦水泉锰矿地处甘肃阿尔金成矿带,属浅海相沉积型锰矿,赋存于蓟县系第2岩组碎屑岩—碳酸盐岩沉积地层中,矿体严格受含锰岩系的控制。该套含锰岩系在本区呈东西向条带状分布,出露长度>80 km,其中已发现苦水泉锰矿、青砂沟锰矿、赛马沟锰矿。通过分析苦水泉锰矿地质特征,与阿克塞县青砂沟大型锰矿、赛马沟锰矿进行对比研究,认为苦水泉锰矿具有寻找大中型沉积型锰矿的地质条件,有进一步扩大找矿前景的潜力。

Kushuiquan manganese ore deposit is located in Arkin metallogenic belt in Gansu Province,and it belongs to the shallow sea sedmentary manganese deposit. Its ore body is boring in the clastic-carbonate sedmentary rocks of second association of Jixian System. It is strictly controlled by manganse-boring rock series. This manganse-boring rock series show zonal distribution from east to west in the research district. Its outcrop length is more than 80 km and some ore deposits are found among it,such as Kushuiquan manganese ore deposit,Qingshagou manganese ore deposit and Saimagou manganese ore deposit. After analysing the geological characteristics of Kushuiquan ore deposit,we have compared with two manganese ore deposits in Akesai county,namely Qingshagou and Saimagou manganese ore deposits. We think that Kushuiquan mangansese deposit will possess the geological conditions to form a large-middle ore deposit for further prospect of ore deposit exploring.