de.pangaea.dataset995722 und dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-07-24T12:30:23Z https://doi.pangaea.de/10.1594/PANGAEA.995722 2026-07-24T12:30:21 publication Duque-Castaño, Monica https://orcid.org/0000-0001-8420-3080 information author Voelker, Antje H L

antje.voelker@ipma.pt

https://orcid.org/0000-0001-6465-6023 information author Andersen, Nils

nandersen@leibniz.uni-kiel.de

https://orcid.org/0000-0003-4148-6791 information author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital 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. completed Duque-Castaño, Monica https://orcid.org/0000-0001-8420-3080 information principalInvestigator Biostratigraphy early Pleistocene IODP Neogloboquadrina atlantica Planktonic foraminifera stable isotope data theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation -32.9573 -23.001462555556 41.000022361111 42.836916666667 Event label thematicClassification Sample code/label thematicClassification DSDP/ODP/IODP sample designation Depth, composite top physicalMeasurement mcd mcd AGE physicalMeasurement ka BP ka BP Marine isotopic stage thematicClassification Sample, wet mass physicalMeasurement Weighed g g Sample, dry mass physicalMeasurement Weighed g g Sample, dry mass physicalMeasurement Weighed; >63 µm g g Globigerina bulloides, δ18O physicalMeasurement Mass spectrometer, Finnigan, MAT 253; coupled with Carbonate preparation device, Finnigan, KIEL IV; vs. VPDB ‰ PDB ‰ PDB Globigerina bulloides, δ13C physicalMeasurement Mass spectrometer, Finnigan, MAT 253; coupled with Carbonate preparation device, Finnigan, KIEL IV; vs. VPDB ‰ PDB ‰ PDB Cibicidoides wuellerstorfi, δ18O physicalMeasurement Mass spectrometer, Finnigan, MAT 253; coupled with Carbonate preparation device, Finnigan, KIEL IV; vs. VPDB ‰ PDB ‰ PDB Cibicidoides wuellerstorfi, δ18O physicalMeasurement Mass spectrometer, Finnigan, MAT 253; coupled with Carbonate preparation device, Finnigan, KIEL IV; vs. VPDB [+ 64 µm] ‰ PDB ‰ PDB Cibicidoides wuellerstorfi, δ13C physicalMeasurement Mass spectrometer, Finnigan, MAT 253; coupled with Carbonate preparation device, Finnigan, KIEL IV; vs. VPDB ‰ PDB ‰ PDB text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.995722?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 306-U1312B * LATITUDE: 42.836917 * LONGITUDE: -23.001463 * ELEVATION: -3522.7 m * RECOVERY: 236.84 m * CAMPAIGN: Exp306 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 25 cores; 231.9 m cored; 102.1 % recovered; 0 m drilled; 231.9 m penetrated EVENT LABEL: 306-U1313B * LATITUDE: 41.000023 * LONGITUDE: -32.957300 * ELEVATION: -3413.5 m * RECOVERY: 306.54 m * CAMPAIGN: Exp306 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 32 cores; 300.4 m cored; 102 % recovered; 2 m drilled; 302.4 m penetrated EVENT LABEL: 306-U1313C * LATITUDE: 41.000022 * LONGITUDE: -32.957010 * ELEVATION: -3412.7 m * RECOVERY: 305.79 m * CAMPAIGN: Exp306 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 32 cores; 293.4 m cored; 104.2 % recovered; 0 m drilled; 293.4 m penetrated Supplement to Duque-Castaño, Monica https://orcid.org/0000-0001-8420-3080 information author Raymo, Maureen E https://orcid.org/0000-0001-7967-9105 information author Billups, Katharina

kbillups@udel.edu

https://orcid.org/0000-0003-1706-5081 information author Andersen, Nils

nandersen@leibniz.uni-kiel.de

https://orcid.org/0000-0003-4148-6791 information author Kuhnert, Henning

hkuhnert@marum.de

https://orcid.org/0000-0001-5242-4495 information author Voelker, Antje H L

antje.voelker@ipma.pt

https://orcid.org/0000-0001-6465-6023 information author documentHardcopy Paleoceanography and Paleoclimatology