摘要
莫拉(Mola)铁矿区位于几内亚金迪亚省,西非克拉通莱奥(Leo)地盾西部边缘的太古代Kenema-Man Domain地盾与西侧罗克列德褶皱带(Rokelide Fold Belts)的接壤地带。区内发育铁角砾岩型、似条带状赤铁矿型2类矿体。研究认为,铁角砾岩型铁矿主要由后期风化淋滤作用对原生赤铁矿改造并富集形成,赋存于地表;似条带状赤铁矿矿体是经初始海底热液喷溢沉积和后期构造作用改造而富集形成。
Mola iron ore exploration area is located in the southwest of Guinea,the West African craton（Leo）on the western edge of the shield of the Archean（Kenema-Man Domain）shield and the Roque de fold belt（Rokelide Fold Belts）the border zone.Development of iron breccia type,exploration area like bandedhematite type two types of ore body.Iron breccia type of iron ore is mainly due toweathering and leaching of late,the primary hematite transformation andenrichment,occurs in the surface.A banded hematite ore is the initial seafloorhydrothermal sedimentary and tectonic reconstruction and enriched form.
出处
《地质找矿论丛》
CAS
CSCD
2016年第1期71-76,共6页
Contributions to Geology and Mineral Resources Research
关键词
莫拉铁矿
构造
矿床成因
找矿标志
几内亚
Mola iron ore area
structure
origin of deposit
prospecting criteria
Guinea
