late-proterozoic-cambrian
关键词: 元古宙末-寒武纪 主动大陆裂谷 火山岩 北祁连山[gap=1031]keywords: Late-Proterozoic-Cambrian, active contmental rift, volcanic rocks, northern Qilian mountains...
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The Siberian Platform is the model for studies of a history of development of calcareous algae that appeared in abundance at the transition from the Late Proterozoic to the Early Cambrian.
西伯利亚地台的新元古代到早寒武世间的钙藻化石特别丰富，为研究钙藻化石的发育历史提供了模式。
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