Oxygen isotopes, ice volume and sea level

TL;DR: In this paper, a new method for the reconstruction of past ocean salinity has been suggested to come from the hydrogen isotope composition of long chain alkenones (δDalkenone) derived from marine haptophyte algae.

TL;DR: Knudsen et al. as mentioned in this paper used stable isotopes from benthic foraminifera, combined with diatom assemblage analysis and diatom-based sea-surface salinity reconstructions, for the interpretation of changes in bottom and surface water conditions through the early Eemian at Ristinge Klint in the western Baltic Sea.

TL;DR: A unit of 30 cm thick attributable to the Marine Isotopic Stage 1 (MIS 1) (Canal de Las Escobas Formation) was identified at the study site, between the Members Gorch and Puente Las Gaviotas of the Lujan Formation as discussed by the authors.

TL;DR: In this article, the authors re-examine the data and conclude that the temperature of the abyssal ocean has been an actively varying component of the climate system, and that there has been a discrepancy between the ice volume record that these records imply and that derived from the altitude of dated coral terraces around the world.

TL;DR: The first appearance of E. huxleyi has an age of 268,000 B.P, occurring consistently in the middle of oxygen isotope stage 12, whereas the first appearance E. lacunosa has been shown to have occurred in the early stages of the second stage as mentioned in this paper.

TL;DR: In this article, Radiometric dating of successive reef terraces suggests periods of high sea level and associated individual reef tract developments about 82,000, 105,000 and 125,000 years ago.