摘要
莫桑比克共和国位于非洲东南部,属于高原地区。山地约占全国面积五分之三,其余为平原。MdR煤矿位于Moatize子盆地中,面积3964.55hm^(2)。MdR煤矿的Karoo超群中存在四个主要的地层单元。从下往上,依次被划分为Vuzi组、Moatize组、Matinde组和Cadzi组。MdR煤矿内Karoo群沉积地层的层理倾向从南南东8°~12°变化到断层带附近的22°左右,断层倾角为75°~85°,目前至少存在两期正断层作用,导致矿区被分割成许多离散的断夹块,正是这些节理和断层组合的共轭性质形成了MdR煤矿内地块高度切割的断块体。Karoo超群从底到顶依次由冰碛岩、煤系地层、扇三角洲碎屑岩。
The Republic of Mozambique is situated in the southeastern Africa.Topographically belongs to plateau,mountainous area takes up three-fifth of national total area,the rest is plain.The MdR coalmine is situated in the Moatize Subbasin of Moatize-Minjova Basin with area of 3,964.55ha.The Karoo Supergroup in the MdR coalmine has four main stratigraphic units.They are Vuzi,Moatize,Matinde and Cadzi formations from bottom to top successively.Karoo Supergroup sedimentary strata bedding dip has varied from SSE8°~12°to faulted zone vicinity about 22°;fault dip angle is high-angle 75°~85°.At present,at least two staged normal faults have caused mine area divide into many separated blocks.The conjugate properties of those joint and fault complexes have formed land mass highly dissected faulted blocks within MdR coalmine.Karoo Supergroup is formed by tillite,coal measures strata and fan delta clastic rocks from bottom to top successively.
作者
龙陆军
Long Lujun(Exploration and Research Institute,CNACG,Beijing 100039)
出处
《中国煤炭地质》
2021年第11期14-18,共5页
Coal Geology of China
基金
中国煤炭地质总局科技创新项目(ZMKJ-2020-J01-3)。
