Benthic foraminiferal assemblages of Upper Cretaceous sediments from DSDP Hole 74-527 in the Angola Basin, South Atlantic Ocean (Table I, Appendix II) ...

• Main Authors: Widmark, Joen G V, Malmgren, Bjorn
• Format: Dataset
• Language: English
• Published: PANGAEA 1988
• Subjects: DEPTH, sediment/rock; Sample code/label; Sample code/label 2; Sample mass; Dentalina spp.; Globulina lacrima; Buliminella beaumonti; Praebulimina sp.; Reussella szajnochae; Nuttallides truempyi; Nuttallides sp.; Nuttallinella sp.; Neoeponides hillebrandti; Neoeponides sp.; Neoeponides lunata; Alabamina sp.; Anomalina praeacuta; Anomalina sp.; Cibicidoides spp.; Gavelinella beccariiformis; Gavelinella hyphalus; Gyroidinoides quadratus; Gyroidinoides spp.; Oridorsalis umbonatus; Osangularia spp.; Pullenia spp.; Nodosariaceae; Buliminacea; Discorbacea; Orbitoidacea; Cassidulinacea; Dorothia trochoides; Gaudryina pyramidata; Spiroplectammina dentata; Spiroplectammina spp.; Tritaxia spp.; Foraminifera, benthic agglutinated; Foraminifera, benthic; Foraminifera, benthic indeterminata; Foraminifera, benthic, fragments; Drilling/drill rig; DSDP/ODP/IODP sample designation; Counting >125 µm fraction; Leg74; Glomar Challenger; Deep Sea Drilling Project DSDP; Malmgren; Widmark; South Atlantic Ocean
• Online Access: https://dx.doi.org/10.1594/pangaea.687437; https://doi.pangaea.de/10.1594/PANGAEA.687437

Material from the Deep Sea Drilling Project (DSDP) Site 527 from the Angola Basin, South Atlantic Ocean, has been analyzed to determine whether Upper Cretaceous benthonic foraminiferal taxa are differentially sensitive to calcite dissolution, and, if so, to rank their order of susceptibility. Two regimes of dissolution, established on the basis of the degree of planktonic foraminiferal fragmentation, representing stronger and less prominent dissolution within the section studied, were used as a framework for reference. A total of 60 calcareous and eight agglutinated benthonic foraminiferal taxa were identified at the species or genus level; of these, twenty-three calcareous and five agglutinated taxa were selected for the dissolution study. Relative abundance of each of the various taxa was tested statistically, using t-test, between dissolution regimes to assess the significance of the change induced by increased dissolution. Nuttallides truempyi and Neoeponides sp. intermediate form are interpreted as ... : Supplement to: Widmark, Joen G V; Malmgren, Bjorn (1988): Differential dissolution of Upper Cretaceous deep-sea benthonic foraminifers from the Angola Basin, South Atlantic Ocean. Marine Micropaleontology, 13(1), 47-78 ...