Manganese concretions from Kara Sea and Karelia
收藏DataONE2018-04-19 更新2024-06-08 收录
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资源简介：
The determinations of the radioactivity of a series of ferro-manganese concretions of the seas and lakes of the U.S.S.R. (especially of the Kara Sea and lakes of Karelia) have brought out certain facts which make possible the determination of the age of the concretions by the content of radium in its different layers.
创建时间：
2018-04-20
