摘要
河南省卢氏县磨湾锰矿位处华北板块南缘卢氏北部多金属成矿区,主要出露中元古界熊耳群火山岩系和官道口群碳酸盐岩等。矿区地层为单斜构造,南部发育近东西向陡倾斜断裂F1,其两侧平行排布的次级裂隙为本区含控矿构造。锰矿体赋存在熊耳群鸡蛋坪组流纹斑岩地层中,矿体规模较小,赋存形态受构造及其次生裂隙控制,地表近东西向展布,呈透镜状、似层状产出,产状与控矿构造产状基本一致。民采活动、含矿构造特征、围岩蚀变现象等可作为找矿的直接标志。
Mowan Manganese Deposit in Henan is located in the polymetallic metallogenic area in the northern Lushi on the southern margin of North China Plate.It mainly exposes the Mesoproterozoic Xiong’er Group volcanic rock series and Guandaokou Group carbonate rocks.The stratum of the mining area is a monoclinic structure,with a steeply dipping fault F1 developed in the south.The secondary fractures are arranged parallelly on both sides of the area contain ore-controlling structures.Manganese ore bodies occur in the rhyolite porphyry strata of Jiangping Formation of Xiong’er Group.The ore bodies are small in scale,and their occurrence is controlled by structures and secondary fissures.The surface is distributed in an east-west direction,showing lenticular and layered production.The occurrence is basically the same as the occurrence of the ore-controlling structure.Mining activities,ore-bearing structural features,wall rock alteration phenomena are all used as direct indicators of ore prospecting.
作者
吕星海
尹高科
王中宇
郑广明
LV Xinghai;YIN Gaoke;WANG Zhongyu;ZHENG Guangming(The Fourth Geological Exploration Institute,Henan Bureau of Geology and Mineral Exploration and Development,Zhengzhou,Henan 450001,China)
出处
《中国锰业》
2021年第3期29-33,42,共6页
China Manganese Industry
关键词
磨湾锰矿
地质特征
矿床成因
找矿标志
Mowan Manganese Mine
Geological Characteristics
Origin of deposit
Prospecting Mark
