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(Table 3) Distribution of calcareous nannofossils from selected samples of OD...

B2FIND2026-03-19 收录

钙质超微化石地层学

物种丰度统计

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https://b2find.eudat.eu/dataset/ec7a844c-73b8-518b-a93d-0faa38d72760 数据链接链接失效反馈

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species abundance: A = abundant, C = common, F = few, R = rare, - = not observed

应用场景：

古海洋学

钙质超微化石地层学

Sediment depth is given in mbsf. Abundance estimates as follows: A = abundant, C = common, F = few, R = rare, - = not found. Unable to delineate zones because of sparse nannofossils and lack of strati

DataONE2025-06-17 更新70

(Table 21) Distribution of calcareous nannofossil taxa in ODP Hole 115-712A

钙质超微化石地层学

生物地层学

Species abundance: D = dominant (>50 %), A = abundant (10-50 %), C = common (1-10 %), F = few (0.1-1 %), R = rare (<0.1 %), - = not present, cf = confer, ? = questioinable...

B2FIND40

Pleistocene calcareous nannofossil stratigraphy for ODP Leg 177, Atlantic sec...

古海洋学

钙质超微化石地层学

Seven Ocean Drilling Program (ODP) sites recovered during ODP Leg 177 in the Atlantic sector of the Southern Ocean were analyzed to study the Pleistocene calcareous nannofossil...

B2FIND20

(Table 10) Distribution of calcareous nannofossils in ODP Site 139-858

钙质超微化石地层学

古海洋学

Species abundance: A = (abundant >10-100 specimens/field of view), C = common (1-10 specimens/field), F = few (1 specimen/2-10 fields), R = rare (1 specimen/11-100 fields).

B2FIND60

(Table 2) Distribution of Eocene to Paleocene calcareous nannofossils in ODP ...

古生物地层学

钙质超微化石地层学

Species abundances: A = abundant (>30 %), C = common (30-15 %), F = few (15-3 %), R = rare (<3%), - = not present.

B2FIND30