(Table 1B) Distribution of calcareous nannofossil species at DSDP Hole 25-245
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Abundance - V = very abundant, (more than 10 specimens/field of view); A = abundant, (1 to 10 specimens/field of view); C = common, (1 specimen/2-10 fields of view); F = few, (1 specimen/11-100 fields of view); R = rare, (1 specimen/101-1000 fields of view); - = none found. Preservation - P = poor, M = moderate, G = good.
创建时间：
1983-01-01
