摘要
河北省赤城县"后沟式"金矿床产于碱性正长岩岩体的内接触带与断层破碎带的复合部位,是一种新的金矿类型——钾化蚀变岩型金矿.这种矿床具有矿化带较宽,规模较大,矿化稳定,矿石类型简单,蚀变单一等特点.成矿作用与印支—燕山早期碱性正长岩岩体侵入活动有关,属岩浆期后热液型金矿床.
The 'Hougou type' gold deposit discovered in Chicheng county, Hebei Province, being a new type gold deposit in kali-altered rocks, is situated in the composite part between the internal contact zone of alkali-syenite intrusive and faulted fracture zone. Gold deposit of this type is simple in ore type and single in alteration pattern and is characteristized by a wide and stable mineralization belt and a large size of reserves. The deposit is related with the activity of alkalisycrite intrusive of the early Indo-Chinese-Yenshanian epoch and belongs to the postmagmaic hydrothermal type.
出处
《地质与勘探》
CAS
CSCD
北大核心
1991年第3期15-20,共6页
Geology and Exploration
