中国东部冰长石—绢云母型低温浅成热液金矿

刊出日期: 1992-12-31

ON EPITHERMAL VEIN GOLD DEPOSITS OF ADUL ARIA-SERICITE TYPE EASTERN CHINA

Publish Date: 31 December 1992

摘要: 中国东部许多金矿床产在中生代火山岩中,前人将其归于火山热液型矿床,作者将其划为冰长石-绢云母型低温浅成热液矿床,并讨论了其主要特征.许多产在变质岩和花岗岩中金矿过去分别归于变质热液和岩浆热液或者统称中温或中低温热液矿床,其中一部分作者也将其归于冰长石-绢云母型低温浅成热液矿床.这种矿床斑岩型金矿在空间上叠加,在国外有例子,在国内虽有争议,但有可能存在.文中讨论了美洲西部太平洋岛弧与中国东部矿床类型组合类似,但成矿时代有所差别,并从板块构造角度对比进行解释.作者强调指出,由于我国东部成矿时代老,剥蚀作用使得我们对这种矿床认识产生困难,但只要努力一定能打开找矿新思路.
- 冰长石—绢云母型 /
- 低温浅成热液 /
- 金矿 /
- 中国东部
Abstract: Epithermal" is used in the sense of general conception at present existing textural and mineralogic characteristics of shallow emplacement (less than 1 km)and predominant meteoric water at slightly higher temperatures (200-300℃) and pressures of less than a few hundred bars that were present in these deposits.
- adularia-sericite type /
- epithermal /
- gold derusit /
- eastern China