摘要
在脉状金矿研究中，应当注重矿床自然类型．据矿床直观特征将脉状金矿分为石英脉型、蚀变碎裂岩型、糜棱岩型、冰长石－绢云母石英脉型及微细浸染型．从地质环境和含金建造及裂隙构造系统和成矿流体作用方面分析了成矿环境与基本控矿要素．在勘查与评价中应加强矿体分布规律和矿石可选性研究及勘查效益比较研究．
The natural types of deposits ought to be applied in gold exploration Based on the critical characteristics of orebody,vein type gold deposits may be classified into auriferous quartz,auriferous altered rock,auriferous mylonite,adularia sericite quartz,and fine impregnated mineralization The three in one elements of gold bearing formation,fracture system and hydrothermal process are ground preparation of ore forming At present,there are some important problems in the research of auriferous quartz type (1)In craton,is the geodynamics setting of ore forming process Archean Proterozoic continental oceanic crustal plate collision and rift extension,Mesozoic orogenic mineralization and fault magmatic activity,or mantle hot plume process?(2)What is the relationship between the origin and evolution of metallogenetic fluid and geothermal event?(3)It is hard to explain the geochemical and exploring significance of the compound of oxyphile elements(such as scheelite and wolframite)and tourmaline occurring in some gold deposits (4)Can gold element get into crystal lattice of quartz and sulfide (such as pyrite and arsenopyrite)?And(5)what is the difference of regional metallogenetic process between the east and west of China?Auriferous altered rock type is suggested by Chinese geologists based on some large scale gold deposits in Jiaodong Because it is often associated with auriferous quartz,this type of deposits is rarely reported in external literatures Of the auriferous mylonite type,the key problem is whether the ductile shear zone is a kind of metallotectonics or ore controlling tectonics About adularia sericite quartz type,the minerogenic backgroud is not only Cenozoic island arc,but also expanded to Mesozoic volcanic belt and basin(China),and Upper Paleozoic orogenic belt (China and Mid Asia) In China,fine impregnated mineralization type (Carlin type)occur mainly in carbonaceous siltstone It should be further researched for the origin of deposits and whether there are genetically related intr
