Oxygen and carbon isotope ratios for six planktonic foraminifer species from different water depth, Ontong-Java Plateau, Pacific (Table 2) ...

• Main Authors: Bonneau, M-C, Vergnaud-Grazzini, Colette, Berger, Wolfgang H
• Format: Dataset
• Language: English
• Published: PANGAEA 1980
• Subjects: Event label; Latitude of event; Longitude of event; Elevation of event; DEPTH, sediment/rock; Globorotalia tumida, δ18O; Globorotalia tumida, δ13C; Sphaeroidinella dehiscens, δ18O; Sphaeroidinella dehiscens, δ13C; Pulleniatina obliquiloculata, δ18O; Pulleniatina obliquiloculata, δ13C; Globigerinoides ruber, δ18O; Globigerinoides ruber, δ13C; Globigerinoides sacculifer, δ18O; Globigerinoides sacculifer, δ13C; Globigerinoides quadrilobatus, δ18O; Globigerinoides quadrilobatus, δ13C; Box corer; Isotope ratio mass spectrometry; ERDC; Thomas Washington; Pacific; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.1594/pangaea.407617; https://doi.pangaea.de/10.1594/PANGAEA.407617

Stable isotope analyses and scanning electron micrographs have been carried out on six planktonic forminifera species, Pulleniatina obliquiloculata, Globorotalia tumida, Sphaeroidinella dehiscens, Globigerinoides ruber, Globigerinoides sacculifer and Globigerinoides quadrilobatus from eleven box-cores taken at increasing depths in the equatorial Ontong-Java Plateau (Pacific). This allows us to describe the way dissolution affects the microstructures of the tests of the different species and to quantify the changes of isotopic composition. We may conclude that: 1) dissolution effects on test morphology and stable isotope compositions are species dependent, species with a similar habitat showing a similar trend;2) the shallow water, thin-shelled species are the first to disappear: scanning electron microscope (SEM) work shows alteration of outer layers. Deep water, thick-shelled species are present in all samples: SEM work shows breakdown and disparition of inner layers;3) for all species there is a similar ... : Supplement to: Bonneau, M-C; Vergnaud-Grazzini, Colette; Berger, Wolfgang H (1980): Stable isotope fractionation and differential dissolution in recent planktonic foraminifera from Pacific box-cores. Oceanologica Acta, 3(3), 377-381 ...