绿岩带(greenstone belt)是蚀变或变质的基性火成岩带。通常指前寒武纪地盾中呈条带状分布的变质基性岩地区,如太古绿岩带等。一个绿岩带中可含有一层或几层基性火山-沉积变质产物。主要岩石类型有细碧岩、玄武岩、辉长岩和辉绿岩等。因变质作用生成的绿泥石、绿帘石、阳起石等矿物促使岩石普遍具有暗绿色。一套完整的绿岩地层,由早期的火山岩和晚期的以浊流沉积为主的碎屑沉积岩或火山碎屑沉积岩组成;火山岩下部以超基性-基性岩为主,并含有一层科马提岩(指一种超基性喷出岩),上部为钙碱性火山岩。
关键词: 绿岩带;金矿;电磁测深;EH-4系统;低阻异常带 [gap=927]Key words: greenschist belt; gold mine; electromagnetic measurement; EH-4 system; belt of low-resistance ra
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太古代绿岩带 archean greenstone belt
蛇绿岩带 YZSZ ; ophiolite belt
裂谷型绿岩带 rift-type archaean greenstone belt
太古宙绿岩带 Archean greenstone belt
太古宇绿岩带 greenstone belt of archaeozoic era
绿岩带型金矿 greenstone belt gold
绿岩带型金矿床 greenstone belt gold deposits
晚太古代绿岩带 Late Archean greenstone belt
太古代绿岩带金矿 Archaean greenstone belt type gold deposit
哈马迪金矿床位于苏丹北部阿拉伯-努比亚地盾新元古代绿岩带内。
Hamadi gold deposit is located in the Neoproterozoic greenstone belt of the Arabian-Nubian Shield in North Sudan.
辽宁省清原县的南龙王庙金矿,赋存于太古宙绿岩带的变粒岩岩段中。
South Longwangmiao gold deposit in Liaoning Province occurred in the meta-felsic rock unit in Liaobei Archean greenstone belt.
以多期俯冲形成的康西瓦蛇绿岩带将塔里木陆块与高加索—羌塘板块分开。
Tarim land plate and Caucasia - Qiangtang plate was divided by Kangxiwa ophiolite belt formed by multi-period subduction.
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