摘要
东坡矿田中的野鸡尾斑岩锡矿为-以锡为主的多金属大型矿床.在空间上它与野鸡尾岩枝状斑岩体有关,具有清楚的蚀变岩相分带,锡矿化呈浸染状和细脉-浸染状分布.野鸡尾斑岩锡矿与银岩斑岩锡矿在含矿岩体、矿化特征和蚀变岩相分带方面极为相似.但这两个矿床产出的区域地质背景不同,因而为盛产锡石硫化物矿床为特征的华南海西-印支拗陷区的锡矿找矿工作拓宽了思路.
The Yejiwei porphyry tin deposit is a large-scale but low-grade tin deposit with polymetallic association in Dongbo orefield. The deposit is spatially associated with the Yejiwei porphyry offshoot, which exhibits evident altered roock zoning. Tin mineralization occurs in disseminated and veinlet-disseminated forms and is related to certain alteration processes.The Yeijiwei porphyry tin deposit is very similar to the Yinyan porphyry tin deposit in many aspects, such as ore-bearing rock, mineralization and alteration. But these two deposits are different in regional geological setting. Therefore, the discovery of the Yejiwei porphyry tin deport enlarges our thinkings of prospecting for tin deposits in Hercynian-Indocinian depressions in South China, which are characterised by occurrence of cassiterite and polymetallie sulfide.
出处
《地质找矿论丛》
CAS
CSCD
1990年第2期1-11,共11页
Contributions to Geology and Mineral Resources Research
