摘要
戴家湾金(钼)矿位于秦岭造山带和桐柏-大别造山带衔接部位的桐柏造山带,伴生有萤石矿,矿体赋存于受新(城)-黄(陂)剪切断裂南西侧的次级断裂带改造的晚白垩世寺沟组(K2s)的紫红色砾岩夹砂岩的断裂内,其成矿时代晚于晚白垩世,成矿流体均一温度介于111℃~213℃,峰值111℃~130℃,盐度w(NaCleq)盐度为低盐度体系,可分为为0.18%~0.53%、7.7%~8.98%、10.62%~10.77%3个分布区间,流体密度介于0.851~1.020g/cm^(3),平均0.961g/cm^(3),流体压力分布范围0.4~1.7MPa,平均0.6MPa。
The Daijiawan gold(molybdenum)deposit is located in the Tongbai orogenic belt at the junction of the Qinling orogenic belt and the Tongbai-Dabie orogenic belt.It is associated with fluorite ore.The ore body occurs in the fault of the purplish red conglomerate with sandstone in the late Cretaceous Sigou Formation(K2s),which is reformed by the secondary fault zone on the south-west side of the Xincheng-Huangpi shear fault.Its mineralization age is later than the late Cretaceous,and the homogenization temperature of the ore-forming fluid is between 111℃and 213℃,with a peak value of 111℃and 130℃,Salinity w(NaCleq)salinity is a low salinity system,which can be divided into 0.18%~0.53%,7.7%~8.98%,10.62%~10.77%distribution intervals,fluid density is 0.851~1.020g/cm^(3),average 0.961g/cm^(3),fluid pressure distribution range is 0.4~1.7MPa,average 0.6MPa.
作者
陈国荣
许王静
闫博
CHEN Guo-rong;XU Wang-jing;YAN Bo(The 8th Geological Brigade of Hubei Provincial Bureau of Geology,Xiangyang 441000,China)
出处
《世界有色金属》
2023年第7期97-99,共3页
World Nonferrous Metals
关键词
戴家湾金(钼)矿
矿床特征
成矿地质条件
随县
Daijiawan gold(molybdenum)ore
Deposit characteristics
Metallogenic geological conditions
Suixian
