作者: M Paterne , F Guichard , J Labeyrie , P.Y Gillot , J.C Duplessy
DOI: 10.1016/0025-3227(86)90123-4
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摘要: … Although the SiO2 content of the Ciglio-Serrata tuff is higher, the chemical composition of the C-11 ash-layer is more compatible with the analyses of this tuff, since both E20/Na~O ratios …