Rare earth elements in different size fractions of a marine quick clay from Ullensaker, and a till from Upper Numedal, Norway
Tóm tắt
The distribution of rare earth elements (REE) in two different sediments, a marine clay and a till, was found to be dependent both on grain size and mineralogical composition. In the marine clay the REE content was highest in the coarsest fraction; in the till REE were markedly enriched in the finest fraction. Detrital and authigenic origins for different size fractions have been attributed on the basis of REE contents.
Từ khóa
Tài liệu tham khảo
Spirn R.V. (1965) PhD Thesis, Massachusetts Institute of Technology.
Larsen L (1977) Cand.real. Thesis, University of Oslo.
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