Dengta marine built gypsum deposits occurred in Mantou Jianchang Formations, Lower Cambrian.灯塔海积石膏矿床赋存于下寒武统馒头组—碱厂组中.The Pre - cambrian alumino - siliceous slate is the host rock of antimony deposit inHunan.湖南前寒武系的 硅铝 质板岩...

Cambrian的音标：Cambrian的英式发音音标为：['kæmbriən]Cambrian的美式发音音标为：['kæmbriən]...

n.前寒武纪，前寒武层...

始寒武纪...

adj.寒武纪的n.寒武纪人，威尔士人，寒武纪层...

Eocambrian的音标：...

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.Precambrian time for as much as eighty - five percent of all geological time.从前寒 武 世纪以来地球地面大部分被冰川所覆盖的任何地质年代.Late Precambria...

Precambrian的音标：Precambrian的英式发音音标为：['pri:'kæmbriən]Precambrian的美式发音音标为：[pri'kæmbriən]...

Cambria的音标：Cambria的英式发音音标为：['kæmbriə]Cambria的美式发音音标为：['kæmbriə]...

MEI Shi - long , 1991 . Middle and Late Cambrian conodont and trilobite biostratigraphy in Wanxian, Hebei . Unpublished Ph. D thesis of Peking University.武桂春, 2003. 鲁西地区晚寒武世牙形石. 北京大学博士研究生学位论文.Cambrian stratigraphy well d...

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。Gneiss, a metamorphic rock, can be commonly found in Precambrian areas.片麻岩, 变质岩, 可以发现,在...

n.威尔士的中世纪名称...