摘要
静云锰矿位于衡阳成锰沉积盆地,为湘南地区首次发现的奥陶纪沉积型碳酸锰矿床。锰矿层赋存于奥陶系中统烟溪组底部,矿体严格受地层控制,呈层状、似层状产出,原生矿石类型为碳酸锰矿石。研究系统地总结了静云锰矿的地质背景、矿区地质特征,分析了成矿地质条件,并探讨了找矿方向。研究表明,锰矿层厚度变化规律指向北西向沉积富集方向,矿床可能位于断陷槽的南东边部。矿区锰矿石资源量为85.4万t,其中碳酸锰矿石资源量83.5万t,氧化锰矿矿石资源量1.9万t。研究为指导该区域的找矿工作提供了科学依据,建议加强静云锰矿北西方向深部隐伏含锰岩系的探索,以及南西走向延伸方向的工程控制,以扩大矿床规模。
The Jingyun manganese deposit is located in the Hengyang Country manganese sedimentary basin and is the first Ordovician sedimentary manganese carbonate deposit discovered in the southern Hunan region.The manganese ore layer is located at the bottom of the Yanxi Formation in the Middle Ordovician.The ore body is strictly controlled by the strata and is occurs in a layered or quasi layered manner.The study systematically summarizes the geological background,geological features,of the Jingyun manganese deposit,analyzes the geological conditions for ore formation,and discusses,the direction for mineral exploration.The study indicates that the variation in the thickness of the manganese ore layer points to a northwest sedimentary enrichment direction,and the deposit is likely located on the southeast side of a fault-bounded basin.The manganese ore resource in the mining area is 854000 tons,including 835000 tons of manganese carbonate ore and 19000 tons of manganese oxide ore.The research provides a scientific basis for guiding mineral exploration in the area,and recommends to strengthen the exploration of the hidden manganese-bearing rock series in the northwest direction of Jingyun manganese deposit and the engineering control in the southwest strike extension direction to potentially expand the scale of the deposit.
作者
肖德长
黄飞
华二
孙芳
余万明
陈旭
XIAO Dechang;HUANG Fei;HUA Er;SUN Fang;YU Wanming;CHEN Xu(Central South Institute of Geological Exploration,China General Bureau of Metallurgy Geology,Wuhan,Hubei 430081,China)
出处
《中国锰业》
2024年第5期21-25,39,共6页
China Manganese Industry
基金
中国地质调查局地质调查项目(DD20160032,DD20190814)。
关键词
锰矿
地质特征
找矿方向
烟溪组
湖南衡阳县
Manganese deposit
Geological characteristics
Exploration direction
Yanxi formation
Hengyang County,Hunan Province
