Hättig, Katrin; Varma, Devika; Louwye, Stephen; Schouten, Stefan; van der Meer, Marcel T J: Hydrogen Isotopes and revised SST of middle Miocene seawater from IODP Site 307-U1318 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967157 (dataset in review)
Abstract:
Mid-Miocene (16.6 - 12.8 Ma) hydrogen isotopes of alkenones and sea temperatures are obtained from the sediment record of Integrated Ocean Discovery Program (IODP) Expedition 307, Site U1318 drilled in the Porcupine Basin, north east Atlantic at a water depth of ~ 400 m. We present a revised temperature record (cf Sangiorgi et al., 2021, doi:10.1029/2020PA004059). The polar fractions used in the study of Sangiorgi et al. (2021, doi:10.1029/2020PA004059) were re-analysed and integrated for TEX86H and along with the UK'37 record extended by 25 samples. Across the total record (269 samples), 124 ketone samples were analysed for the hydrogen isotopic compositions of C37 long chain alkenones (δ2HC37) with a GC-IRMS.
Supplement to:
Hättig, Katrin; Varma, Devika; Louwye, Stephen; Schouten, Stefan; van der Meer, Marcel T J (in review): Stable Middle Miocene seawater isotopes in the eastern North Atlantic Ocean. Paleoceanography and Paleoclimatology
Funding:
European Commission (EC), grant/award no. 847504: Local training network: Netherlands Earth System Science Centre: “NESSC”
Coverage:
Median Latitude: 51.435817 * Median Longitude: -11.550492 * South-bound Latitude: 51.435800 * West-bound Longitude: -11.550667 * North-bound Latitude: 51.435833 * East-bound Longitude: -11.550317
Minimum DEPTH, sediment/rock: 87.500 m * Maximum DEPTH, sediment/rock: 241.325 m
Event(s):
307-U1318B * Latitude: 51.435800 * Longitude: -11.550317 * Elevation: -408.8 m * Recovery: 213 m * Campaign: Exp307 (Porcupine Basin Carbonate Mounds) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 27 cores; 244.6 m cored; 87.1 % recovered; 0 m drilled; 244.6 m penetrated
307-U1318C * Latitude: 51.435833 * Longitude: -11.550667 * Elevation: -409.9 m * Recovery: 84.15 m * Campaign: Exp307 (Porcupine Basin Carbonate Mounds) * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 87.4 m cored; 96.3 % recovered; 67.1 m drilled; 154.5 m penetrated
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3991 data points
Download Data (login required; moratorium until 2024-07-09)
View dataset as HTML (shows only first 2000 rows)