矿产与地质
礦產與地質
광산여지질
MINERAL RESOURCES AND GEOLOGY
2015年
3期
295-300
,共6页
铝土矿%堆积型%岩溶洼地%岩溶作用%广西那坡县
鋁土礦%堆積型%巖溶窪地%巖溶作用%廣西那坡縣
려토광%퇴적형%암용와지%암용작용%엄서나파현
bauxite deposit%accumulation type%karst depression%karstification%Napo in Guangxi
通过找矿勘探，在那坡县龙合矿区发现一处大型规模的堆积铝土矿矿床，为广西区铝工业发展提供后备资源基地。堆积铝土矿赋存于岩溶洼地内更新世岩溶堆积红土层中，成矿物质来源于上二叠统合山组底部的古风化壳型铝土矿(岩)层，主要成矿时代为更新世，主导成矿作用为岩溶作用、红土化作用。矿化富集主要受矿源层、地层岩性、构造运动、气候和地貌等因素控制。
通過找礦勘探，在那坡縣龍閤礦區髮現一處大型規模的堆積鋁土礦礦床，為廣西區鋁工業髮展提供後備資源基地。堆積鋁土礦賦存于巖溶窪地內更新世巖溶堆積紅土層中，成礦物質來源于上二疊統閤山組底部的古風化殼型鋁土礦(巖)層，主要成礦時代為更新世，主導成礦作用為巖溶作用、紅土化作用。礦化富集主要受礦源層、地層巖性、構造運動、氣候和地貌等因素控製。
통과조광감탐，재나파현룡합광구발현일처대형규모적퇴적려토광광상，위엄서구려공업발전제공후비자원기지。퇴적려토광부존우암용와지내경신세암용퇴적홍토층중，성광물질래원우상이첩통합산조저부적고풍화각형려토광(암)층，주요성광시대위경신세，주도성광작용위암용작용、홍토화작용。광화부집주요수광원층、지층암성、구조운동、기후화지모등인소공제。
A large-scale accumulation type bauxite deposit was found through prospecting and exploration in Longhe mining area in Napo of Guangxi,and this deposit played the role of backup resource base in the de-velopment of aluminum industry in Guangxi.The accumulation type bauxite deposit occurred in karst accu-mulation laterite formation of Pleistocene Epoch inside karst depression and it was formed in Pleistocene Ep-och under the primary mineralizing processes of karstification and lateritization with fossil weathering crust type bauxite ore beds (rock strata)of Permian lower Heshan Formation as its ore-forming material source. The mineralization and enrichment were mainly controlled by factors such as ore source bed,formation li-thology,tectonic movement,climate and landform.
