摘要
中国西部地区以地槽褶皱系为主体。开合运动是区内一种重要的构造运动形式，形成了时、空分布广泛的海相火山岩及基性－超基性岩。铜矿的时、空分布也非常广泛，类型较多，但主要铜矿类型为火山岩型、喷流沉积型、岩浆硫化铜镍型、斑岩型等四种。不同类型矿床的形成，尤其是大中型矿床的形成严格地受地质构造环境的控制。中国东、西部地区铜矿成矿、控矿因素有一定的差异。
The western China is tectonically dominated by geosynclinal folding systems,in which the opening- closing tectonics is an important one. The copper deposits ac-companied by volcanic rocks and basic-ultrabasic rocks are widely distributedtemporally and spatidlly. The copper deposits are presented in various types with the dominance of four types :volcanic type, exhalative-sedimentary type, magmatic Cu-Ni type and porphyry type. The formation of various copper deposits, especially thatof the medium-large sized ones, is strictly controlled by geologic and tectonic environments. It is concluded that there is obviousdifference in metallogeny and metallotect between the eastern China and the western China.
出处
《矿产勘查》
1994年第2期71-76,共6页
Mineral Exploration
关键词
铜矿
地质构造
geotectonic evolution
copper mineralization
