北祁连西段黑石头沟锰矿地质特征及矿床控矿成因分析  

Geological Characteristics and Ore-controlling Genesis Analysis of Heishugou Manganese Deposit in Sunan County

作　　者：李赞 陈光 陶世旭 陶铸 裴满意 李国锋 叶琴 LI Zan;CHEN Guang;TAO Shixu;TAO Zhu;PEI Manyi;LI Guofeng;YE Qin(The Fourth Geological Exploration Institute of Henan Geological Bureau Co.,Ltd.,Zhengzhou,Henan 450001,China;Shandong Zhengyuan Geological Resources Exploration Co.,Ltd.,Zibo,Shandong 255000,China)

机构地区：[1]河南省地质局第四地质勘查院有限公司,河南郑州450001 [2]山东正元地质资源勘查有限责任公司,山东淄博255000

出　　处：《中国锰业》2023年第2期73-77,共5页China Manganese Industry

摘　　要：研究区位于北祁连马—肃南华力西晚期铜铅锌钨钼铁金、石灰岩成矿带,为走廊弧后盆地,属典型的“优地槽”型建造,为大洋壳俯冲后期残留或萎缩洋盆深海相沉积建造,火山-沉积建造组合为该区域锰矿床的形成提供了优越的成矿地质背景。区域上在寒武-奥陶纪裂谷演化阶段和沟弧盆演化阶段,受大地构造控制,伴随洋岛火山活动,喷溢出含铁、锰高硅热水,并沉积形成含锰地层。在岩浆热液和变质作用影响下,在北祁连中西段,逐渐形成以铁、锰为主的火山-沉积型或火山-沉积-热液改造型矿床。The area is located in the late copper,lead,zinc,tungsten,molybdenum,limestone metallogenic belt of northern Qilianma-Sunanhua Lixi,which is a corridor back-arc basin.As the corridor back-arc basin,it belongs to the typical“eugeosyncline”model building for later subduction of oceanic shell residue or shrinking ocean basin abyssal facies sedimentary formation.The volcanic sedimentary combination provides the manganese deposit in this region to form favorable metallogenic geological background.During the period of the region in Cambrian-Ordovician rift evolution stage and trench arc basin evolution stage,which was controlled by tectonic.It is with oceanic island volcanic activity,high iron,manganese silicon hot water spray overflow.In the research,it also found that manganese content in the sedimentary formation strata,magmatic hydrothermal and metamorphism are all under the influence of western north Qilian,it gradually formed mainly iron,manganese,volcanic sedimentary type or volcanic sedimentary hydrothermal reformation type deposit.

关 键 词：北祁连西段 火山-沉积型锰矿 矿床地质特征 控矿成因分析 

分 类 号：P618.32[天文地球—矿床学]