绿岩带 meaning in Chinese
greenstone belts
Examples
- Evidence from isotopic dating suggests that the greenstone belts vary considerably in age .
来自同位素年龄鉴定的证据指出，绿岩带在年龄上彼此变化相当大。 - The helong olivine komatiite within the granitc - grcenstone belt in the eastern part of north china platform
华北地台东段花岗绿岩带中和龙橄榄石质科马提岩 - We have found out more than 2 hundred ophiolite belts , but there are cyprus copper deposits only in 50 ophiolite belts
全球已发现200多条蛇绿岩带，但其中仅50多条发现了塞浦路斯型铜矿床。 - The ophiolite massifs are composed of mantle peridotite that is mainly harzburgite and dunite , and lacked of crust magmatite within the typical ophiolite suite
摘要该蛇绿岩带的岩体由地幔橄榄岩组成，主要岩石类型是方辉橄榄岩和纯橄榄岩，缺少典型蛇绿岩剖面中的洋壳单元。 - In terms of their geological and geochemical characteristics as well as the ages of these plutons , these three sub - belts from south to north are interpreted as syn - subductional , syn - collisional and post - collisional plutons respectively . composed of quartz diorite and quartz monzonite , the syn - subduction plutonic rocks are confined only to the south kunlun massif
俯冲期侵入岩仅出露于蛇绿岩带之南的昆南地块上，岩性组合为石英闪长岩-石英二长岩，三个主要岩体获锆石u - pb年龄值为481ma 、 461ma 、 452ma ，均为奥陶纪。