Cambrian Period
Two main glacial epochs affected both areas during the last 100 million years of Precambrian times.
在前寒武纪的最后1亿年中,两个主要的冰川时期对两个地区都产生了影响。
—— 柯林斯例句Gneiss, a metamorphic rock, can be commonly found in Precambrian areas.
片麻岩, 变质岩, 可以发现,在常见的前寒武纪地区。
—— 给力词典精选In Britain, Cambrian rocks are found in Wales and North - West Scotland.
在英国的威尔士和苏格兰的西北部,发现了寒武纪的岩石。
—— 给力词典精选Early - Precambrian rocks are widely exposed in Dunhuang - Beishan area, GansuProvince.
甘肃敦煌 - 北山地区广泛出露早前寒武纪岩石。
—— 给力词典精选Rapakivi is a special rock in Precambrian.
环斑花岗岩是发育于前寒武纪的一种特殊岩石。
—— 给力词典精选