Late Oligocene Warming Event in the southern North Sea Basin: benthic foraminifera as paleotemperature proxies

Living benthic foraminifera in Kiel Fjord, SW Baltic Sea

A. Nikulina et al.

Resolving a late Oligocene conundrum: Deep-sea warming and Antarctic glaciation

a Queens College, School of Earth and Environmental Sciences, CUNY, 65-30 Kissena Blvd., Flushing, New York 11367, USA b Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964, USA c Department of Geosciences, 233 Morrill Science Center, University of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003, USA d Department of Geosciences, 214 Bessey Hall, Univer...

A culture-based calibration of benthic foraminiferal paleotemperature proxies: delta O-18 and Mg/Ca results

Benthic foraminifera were cultured for five months at four temperatures (4, 7, 14 and 21 C) to establish the temperature dependence of foraminiferal calcite δ18O and Mg/Ca. Two Bulimina species (B. aculeata and B. marginata) were most successful in terms of calcification, adding chambers at all four temperatures and reproducing at 7 and 14 C. Foraminiferal δ18O values displayed ontogenetic vari...

Paleoceanographical proxies based on deep-sea benthic foraminiferal assemblage characteristics

Late Eocene to early Oligocene quantitative paleotemperature record: Evidence from continental halite fluid inclusions

Climate changes within Cenozoic extreme climate events such as the Paleocene-Eocene Thermal Maximum and the First Oligocene Glacial provide good opportunities to estimate the global climate trends in our present and future life. However, quantitative paleotemperatures data for Cenozoic climatic reconstruction are still lacking, hindering a better understanding of the past and future climate con...