摘要
广西新生代以来,处亚热带气候区,风化作用强烈,风化矿床甚为发育,具有重要的经济价值。在全国久负盛名的广西锰矿,风化矿床约占36.4%。广西重要的有色金属之一的铝土矿,风化矿床占87.9%。广西出口矿产品钛砂矿,风化矿床占81.9%。在广西矿产中占重要位置的稀土,稀有金属和高岭土矿,几乎全是风化矿床。这里仅介绍锰、铝、钛砂等的风化矿床以供研究。一、广西风化锰矿床(氧化锰矿床)广西沉积岩有13个含锰层位,主要产在台沟相和盆地相沉积物中。以晚古生界最盛。
The weathering deposits in Guangxi have its own specularities,the ore deposits have a vast numbers,the mi(?)eral resources include manganese,titanium,aluminium,iron, gold,rare earth metals,rare metals and kaolin etc.These deposits have very important economic value in Guangxi.In this paper,the sources of minerogenic materials of manganese,aluminium and ilmenite placer weathering deposits,minerogenic Conditions and mechanism,the distributed regularities and minerogenic conditions and spatial distributed regularities of variety of weathering deposits were researched.The authors considered that the minerogenic conditions of weathering deposits in Guangxi are very well,and strengthening the geological works is necessary.
出处
《广西地质》
1996年第1期101-130,101-128,共30页
Guangxi Geology
关键词
风化矿床
成矿物源
控制因素
锰矿床
weathering deposit
manganese
aluminium
ilmenite placer
minerogenic condition
controlling factor
