PANGAEA_995722 Sample preparation parameters and stable carbon and oxygen isotope ratios of Globigerina bulloides and Cibicidoides wuellerstorfi from IODP Sites 306-U1313 and 306-U1312 in the North Atlantic during Marine Isotope Stages (MIS) 36 to 46 Duque-Castaño, Monica; Voelker, Antje H L; Andersen, Nils Sample preparation parameters and stable carbon and oxygen isotope ratios of Globigerina bulloides and Cibicidoides wuellerstorfi from IODP Sites 306-U1313 and 306-U1312 in the North Atlantic during Marine Isotope Stages (MIS) 36 to 46 2026-07-24 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.995722 Investigator Monica Duque-Castaño Earth Science Event label Sample code/label Depth, composite top AGE Marine isotopic stage Sample, wet mass Sample, dry mass Globigerina bulloides, δ18O Globigerina bulloides, δ13C Cibicidoides wuellerstorfi, δ18O Cibicidoides wuellerstorfi, δ13C geoscientificInformation 306-U1312B 306-U1313B 306-U1313C Biostratigraphy Drilling/drill rig early Pleistocene Exp306 IODP Neogloboquadrina atlantica Planktonic foraminifera stable isotope data DSDP/ODP/IODP sample designation Weighed Mass spectrometer, Finnigan, MAT 253; coupled with Carbonate preparation device, Finnigan, KIEL IV Joides Resolution Complete 41.000022361111 42.836916666667 -32.9573 -23.001462555556 unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

Leobener Str.

Bremen Bremen 28359 Germany online 2533 data points text/tab-separated-values Duque-Castaño, Monica; Raymo, Maureen E; Billups, Katharina; Andersen, Nils; Kuhnert, Henning; Voelker, Antje H L (in review): The Rise and Fall of Neogloboquadrina atlantica: Distribution and Extinction in the North Atlantic. Paleoceanography and Paleoclimatology

This combined dataset contains sample preparation parameters and stable carbon (δ¹³C) and oxygen (δ¹⁸O) isotope measurements from IODP Sites 306-U1312 (42°50.2′N, 23°38.2′W; 3554 m water depth) and 306-U1313 (41°0.08′N, 32°57.4′W; 3426 m water depth), located north of the Azores Islands. The record spans Marine Isotope Stages (MIS) 36 to 46 during the Early Pleistocene and includes wet weight, dry weight, coarse fraction weight, and stable isotope data obtained from planktonic and benthic foraminifera. Sediment samples were processed following the standard procedures of the Sedimentology and Micropaleontology Laboratory of the Divisão de Geologia e Georecursos Marinhos (DivGM), Instituto Português do Mar e da Atmosfera (IPMA). Samples were weighed before and after freeze-drying to determine dry weight, washed through a 63 μm sieve, and the coarse fraction was dried and weighed. Stable carbon (δ¹³C) and oxygen (δ¹⁸O) isotope measurements were performed on the planktonic foraminifera Globigerina bulloides and the benthic foraminifera Cibicidoides wuellerstorfi at the Leibniz Laboratory for Radiometric Dating and Stable Isotope Research (Kiel University, Germany) using a Finnigan MAT 253 mass spectrometer coupled to a Kiel IV carbonate preparation device. Isotope values are reported relative to the Vienna Pee Dee Belemnite (VPDB) standard. The age model for IODP Site U1312 is based on correlation of the benthic δ¹⁸O record of Cibicidoides wuellerstorfi to the LR04 benthic isotope stack, whereas the chronology of IODP Site 306-U1313 is based on correlation of the planktonic δ¹⁸O record of Globigerina bulloides to the high-resolution isotope record from IODP Site 339-U1385, which is aligned to the LR04 benthic isotope stack. The dataset provides sample preparation parameters and stable isotope records from IODP Sites 306-U1312 and 306-U1313, forming a comprehensive archive for paleoceanographic and micropaleontological studies of the Early Pleistocene North Atlantic. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995722"!

http://en.wikipedia.org/wiki/Kyr AGE http://www.marinespecies.org/aphia.php?p=taxdetails&id=113434 Globigerina bulloides, δ13C http://www.marinespecies.org/aphia.php?p=taxdetails&id=113434 Globigerina bulloides, δ18O https://hdl.handle.net/10013/epic.27914.d001 DSDP/ODP/IODP sample designation https://www-odp.tamu.edu:443/resolutn.html Joides Resolution DIF 9.4 2026-07-24 2026-07-24