摘要
基性-超基性岩中赋存有铜镍硫化物矿床、豆荚状铬铁矿床等许多重要的矿床,基性-超基性岩成岩成矿方面的研究多采用镁铁比值,但以往利用该比值时未考虑岩石的SiO_2含量、地质构造及岩石蚀变等一些重要条件。文章结合国内外一些重要的铜镍矿床和铬铁矿矿床,考虑到上述的几个条件,讨论了镁铁比值在划分岩石类型方面的应用,通过计算给出了与前人不同的镁铁比值划分区间。
There are many important ore deposits hosted in the basic-ultrabasic rocks,such as Cu-Ni sulphide deposits and podiform chromite deposits.Researches on petrogenisis and metallogenisis of basic-ultrabasic rocks applied generally the Mg/Fe ratio and ignored some crucial conditions such as SiO_2 content,geological structure and rock alteration.In consideration of some important Cu-Ni deposits and chromite deposits at home and abroad and above conditions,this paper discussed the application of M/F in the rock classification and proposed new division fields based on calculation.
出处
《地质找矿论丛》
CAS
CSCD
2016年第1期42-46,共5页
Contributions to Geology and Mineral Resources Research
