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现代矿业 ›› 2017, Vol. 33 ›› Issue (12): 35-38.

• 专家·视点 • 上一篇    下一篇

广西靖西—大新地区含锰岩系地质特征及找矿方向

覃初礼   

  1. 广西壮族自治区地质调查院
  • 出版日期:2017-12-25 发布日期:2018-03-01
  • 基金资助:

    中国地质调查局基金项目(编号:12120114084201);国土资源部《中国地质矿产志· 广西卷· 锰矿志》基金项目(编号:12120114075201)

Geological Characteristics of Prospecting Direction of Manganesebearing Rock Series and JingxiDaxin Area,Guangxi Province

Qin Chuli   

  1. Guangxi Geologic Survey Institute
  • Online:2017-12-25 Published:2018-03-01

摘要: 广西靖西—大新地区是我国重要的锰矿床聚集地。该区锰矿主要产于上泥盆统榴江组(D3l)、五指山组(D3w)和下石炭统鹿寨组(C1lz)含锰岩系中。含锰岩系受区域构造发展演化的影响,发育于下雷—灵马断裂走滑拉张作用形成的狭长凹陷成锰盆地及其发展和继续的浅海陆棚凹槽内。结合该区地质调查及相关找矿勘查成果,对区内含锰岩系地质特征、分布规律、矿床成因及找矿方向进行了探讨,认为该区含锰岩系分布规律、沉积环境与岩相古地理环境密切相关,含锰岩系控制了锰矿的分布、规模及品位,含锰岩系相应的地层层位及控矿构造部位的找矿潜力巨大。

关键词:  锰矿 , 含锰岩系 , 成锰盆地,  找矿方向

Abstract: JingxiDaxin Area in Guangxi Province is an important gathering area of manganese deposit in China. The manganese deposit in the area is mainly distributed in the Mnbearing rock series of Upper Devonian Liujiang Formation (D3l), Wuzhishan Formation (D3w) and the Lower Carboniferous Luzhai Formation (C1lz).The Manganesebearing rock series is affected by the evolution of regional tectonic evolution,it is hosted in the narrowlong sag manganeseforming basin formed by the strikeslip mechanism of XialeiLingma fault and its development and continuous neritic shelf groove.Based on the geological investigation results and some related geological prospecting and exploration results of the area,the geological characteristics,distribution regularity,deposit genesis and prospecting direction of Manganesebearing rock series of the area are discussed in detail,the results show that the distribution regularity of Manganesebearing rock series and sedimentary environment area closely related to petrographic paleogeography environment,the distribution characteristics,scale and grade of manganese deposit are controlled by Manganesebearing rock series,the prospecting potential of the corresponding strata and orecontrolling structure of Manganesebearing rock series in the area is huge.

Key words: Manganese deposit, Manganesebearing rock series, Manganeseforming basin, Prospecting direction