(Table 3) Abundance of radiolarians and other siliceous microfossils of ODP Hole 113-690B
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Estimates are subjective, but reproducible to nearest major category and based on examination of several thousand to several tens of thousands of radiolarians/sample. Diatoms, radiolarian, and silicoflagellate abundance as % total coarse fraction. Radiolarian species as % of radiolarian assemblage. VA = very abundant, >90% of total; A = abundant, 20%-50<%; C = common, 5%-20%; F = few, 0.5%-5%; R = rare, > 1 specimen but <0.5%; + = single specimen; X = present, but relative abundance not determined; #- = specially searched for but not seen, - = not observed. ? = specimens with uncertain taxonomic assignment. Size fraction >63 µm.
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Lazarus, David B创建时间:
1990-01-01



