Publication Date:
2023-08-26
Description:
The oxygen isotopic composition of benthic foraminifera (d18Ob) is widely used to date and correlate marine sediment sequences. However, d18Ob has found comparatively little use in the Arctic Ocean due both to uncertainty in Arctic marine sediment chronology and the lack of resemblance between Arctic and open ocean d18Ob records. We address this issue by combining Arctic d18Ob records (Cronin et al., 2019) with benthic ostracode Mg/Ca-BWT reconstructions (Cronin et al., 2017) to create a composite record of the history of seawater d18O in the intermediate-to-deep Arctic Ocean over the last 600 kyr. Seawater d18O and its uncertainty was calculated using PSU Solver (Thirumalai et al., 2016).
Keywords:
AGE; Arctic_Ocean_Section_1994; Arctic_Summer_West_1992; Arctic Ocean; B16; B17; B8; BC; benthic foraminiferal stable isotopes; Bottom water temperature; Box corer; Calculated; calculated, 1 sigma; Cassidulina teretis, δ18O; Cibicidoides wuellerstorfi, δ18O; Cibicidoides wuellerstorfi, δ18O standard deviation; DEPTH, sediment/rock; Elevation of event; Event label; Healy; Healy-Oden Trans Arctic Expedition 2005 (HOTRAX05); HLY0503; HLY0503-18TC; interpolated; Latitude of event; Lomonosov Ridge, Arctic Ocean; Longitude of event; Magnesium/Calcium ratio; Mendeleev Ridge; Mg/Ca paleothermometry; Normalized to Cibicidoides wuellerstorfi; Normalized to Uvigerina; Northwind Ridge; Oridorsalis tener, δ18O; ostracodes; oxygen isotope data; P15; P192-AR-P30; P192-AR-P40; P1-93-AR; P193-AR-P21; P194AR-B16; P194-AR-B17; P194-AR-B8; P194-AR-P15; P194-AR-P9; P21; P30; P40; P9; PC; Piston corer; Polar Sea; Polar Star; Seawater δ18O; TC; Trigger corer; δ18O, seawater, reconstructed
Type:
Dataset
Format:
text/tab-separated-values, 4519 data points
Permalink
