摘要
河南省三门峡境内铝土矿床是产于奥陶系灰岩之上的一水硬铝石型沉积型铝土矿床,铝土矿矿体形态与古岩溶侵蚀面有着密切的关系,呈层状-似层状、透镜状(扁豆状)、溶斗状等,矿体的形态严格受古地形的控制.矿石类型主要为砾屑状、砂(粒)状、蜂窝状、豆鲡状及致密状铝土矿,以及它们之间的复合类型.矿床的形成主要受本溪组地层、构造、古地理等多种条件控制.
The bauxite deposits in Sanmenxia area,Henan Province,are of diasporic sedimentary type formed on Ordovician limestone.The forms of bauxite orebodies are closely related to the paleokarst erosion surface,occurring as stratiform-stratoid,lentiform(podiform)and doline form,which are strictly controlled by paleotopography.The ore types are mainly rudaceous,gravelly,alveolar,pisolitic and compact bauxites,and the composite types as well.The forming of deposits is controlled by multiple conditions mainly as strata of Benxi Formation,structure and paleogeography.
作者
席善峰
欧阳兆灼
李建全
王中宇
冯非凡
李勋
XI Shan-feng;OUYANG Zhao-zhuo;LI Jian-quan;WANG Zhong-yu;FENG Fei-fan;LI Xun(No.4 Geological Exploration Institute,Henan Bureau of Geology and Mineral Exploration,Zhengzhou 450001,China;Shenyang Center of Geological Survey,CGS,Shenyang 110034,China)
出处
《地质与资源》
CAS
2019年第4期339-344,共6页
Geology and Resources
关键词
铝土矿床
沉积古地理
控矿条件
三门峡
河南省
bauxite deposit
sedimentary paleogeography
ore-controlling condition
Sanmenxia
Henan Province
