摘要
在花—张断裂带两侧分布着众多铅锌矿床,这些矿床赋存于寒武系下统的海相礁灰岩中,受岩性和断裂控矿明显,以层状、似层状为主,成矿流体为高盐度热卤水的沉积岩型铅锌矿床,有着特殊的成矿背景及成矿条件,与MVT相似、但有不同特征的铅锌矿床,称之为"礁灰岩型"铅锌矿床。通过阐述近年发现的"礁灰岩型"铅锌矿床的成矿特征,圈定该类矿床的找矿潜力地段,以期为找到更多的礁灰岩型铅锌矿床提供参考。
A large number of sediment-hosted Pb-Zn deposits have been found in the sides of Huayuan-Zhangjiajie fault zone. These deposits have the following characteristics: First, they are mainly hosted in the marine reef limestone in lower Cambrian, and are apparently controlled by lithology and fault. Secondly, the orebodies occur as stratiform or stratoid form. Moreover, the ore-forming fluid is hot brine with high salinity.It is called reef limestone hosted Pb-Zn deposit which have special metallogenic settings and conditions.These deposits are similar to MVT type ore deposit, but there are some different characteristics. In this paper, we state the metallogenic characters of reef limestone hosted Pb-Zn deposits which have been found recently, and delineated prospecting potential area in order to provide useful information to find more deposits.
作者
任爱君
毛党龙
陈伦杰
Ren Aijun;Mao Danglong;Chen Lunjie(Hunan Geoscience Planning and Design Limited Company, Changsha Hunan 410007;Hunan Research Academy of Geological Science, Changsha Hunan 410007;Team 405 in Bureau of Geology and Mineral Exploration and Development of Hunan, Jishou Hunan 416007)
出处
《国土资源导刊》
2017年第1期82-88,共7页
Land & Resources Herald
关键词
花垣
“礁灰岩型”铅锌矿床
矿床特征
地质背景
找矿方向
Huayuan
reef limestone hosted Pb-Zn deposit
metallogenic characters
geological background
prospecting direction
