de.pangaea.dataset969547 und dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-04-30T21:09:36Z https://doi.pangaea.de/10.1594/PANGAEA.969547 2026-01-23T13:04:43 publication https://doi.org/10.1594/PANGAEA.969547 Suan, Guillaume

guillaume.suan@univ-lyon1.fr

https://orcid.org/0000-0002-1732-1965 information author Pige, Nicolas

nicolas.pige@univ-lyon1.fr

author Blard, Pierre-Henri https://orcid.org/0000-0002-8455-8014 information author Mattioli, Emanuela

emanuela.mattioli@univ-lyon1.fr

https://orcid.org/0000-0003-0990-1641 information author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital The Paleocene-Eocene Thermal Maximum (PETM; around 56 Ma ago) is arguably the most intensively studied event of rapid greenhouse warming of the geological past. The duration and age of the PETM, however, remains vividly debated, limiting our understanding of the response of the Earth System dynamics to rapid warming. Here we present new extraterrestrial helium 3 (3HeET) data across the PETM at ODP Site 198-1209 (N Pacific) that document a drop in 3HeET fluxes from 0.56 ± 0.02 pcm³/cm²/ka ~1 Ma prior to the PETM to values of 0.37 ± 0.02 pcm³/cm²/ka before and after the PETM. Our 3HeET-based chronology, optimized through spectral analysis and orbital tuning, indicates a duration of 160±10 ka for the PETM body/core, consistent with previous 3HeET estimates from ODP Site 208-1266 (Walvis Ridge). The PETM started at the onset of a 100 ka eccentricity maxima at 56080 ka BP and ended abruptly during a marked decline in eccentricity at 55883 ka, providing strong support for an orbital trigger of both its onset and termination. The reevaluation of the 3HeET age models of the high paleo-latitude ODP Site 113-690 shows that the prominent sedimentary and carbon isotope steps at this site were controlled by obliquity instead of precession. Our revised chronology suggests that obliquity was also the dominant driver of the repeated drops to lower δ13C values during the PETM in otherwise precession-dominated low latitude sites, possibly reflecting the repeated destabilization of methane hydrate or permafrost carbon stocks at high latitudes. This dataset contains the grayscale reflectance logs obtained on core photographs for ODP Site 198-1209A, B and C, new records of helium isotope and non-carbonate fraction data for ODP Site 198-1209 and the reconstructed apparent 3HeET fluxes (FET), instantaneous sedimentation rates (ISR) and ages. We also report new bulk carbonate carbon and oxygen stable isotope data for ODP Site 198-1209 that are included in a compilation of published bulk carbonate data from the same site along with their corresponding 3HeET ages. We include a compilation of published benthic foraminifera carbon and oxygen stable isotope data for ODP Site 198-1209 with their corresponding 3HeET ages. We also report a compilation of Fe and Ca concentrations, stable isotope data measured on bulk sediment, planktonic and benthic foraminifera from ODP Site 113-690 that are reported against a revised 3HeET-based age model we developed for this site using published 3HeET data and a revised 3HeET flux of 0.42 ± 0.02 pcm³/cm²/ka and an age of 55916 ka BP for point F (169.05 mbsf). completed Suan, Guillaume

guillaume.suan@univ-lyon1.fr

https://orcid.org/0000-0002-1732-1965 information principalInvestigator age-depth model Helium Pacific Paleocene-Eocene Thermal Maximum (PETM) stabe isotopes 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 158.50593 158.50608 32.65165 32.6518 2001-09-18T08:00:00 2001-09-23T04:30:00 This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation Event label thematicClassification Latitude of event thematicClassification Longitude of event thematicClassification Date/Time of event thematicClassification Elevation of event physicalMeasurement m m Sample code/label thematicClassification DSDP/ODP/IODP sample designation Depth, top/min physicalMeasurement IODP Depth Scale Terminology; mbsf m m Depth, composite revised top physicalMeasurement IODP Depth Scale Terminology; [rmcd'] rmcd rmcd Nuttallides truempyi, δ13C physicalMeasurement vs. VPDB ‰ PDB ‰ PDB Nuttallides truempyi, δ18O physicalMeasurement vs. VPDB ‰ PDB ‰ PDB Reference/source thematicClassification Uniform resource locator/link to reference thematicClassification Gas age physicalMeasurement Scenario 1 (mean) ka BP ka BP Gas age, minimum physicalMeasurement Scenario 1 ka BP ka BP Gas age, maximum physicalMeasurement Scenario 1 ka BP ka BP Gas age physicalMeasurement Scenario 1 + hiatus (mean) ka BP ka BP Gas age, minimum physicalMeasurement Scenario 1 + hiatus ka BP ka BP Gas age, maximum physicalMeasurement Scenario 1 + hiatus ka BP ka BP Gas age physicalMeasurement Scenario 2 (mean) ka BP ka BP Gas age, minimum physicalMeasurement Scenario 2 ka BP ka BP Gas age, maximum physicalMeasurement Scenario 2 ka BP ka BP Gas age physicalMeasurement adjusted; Scenario 2 ka BP ka BP Sample comment thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.969547?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: 198-1209A * LATITUDE: 32.651660 * LONGITUDE: 158.505930 * DATE/TIME START: 2001-09-18T08:00:00 * DATE/TIME END: 2001-09-19T13:35:00 * ELEVATION: -2387.2 m * PENETRATION: 259.6 m * RECOVERY: 262.27 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg198 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 28 cores; 259.6 m cored; 0 m drilled; 101 % recovery 2001-09-18T08:00:00 EVENT LABEL: 198-1209B * LATITUDE: 32.651800 * LONGITUDE: 158.505930 * DATE/TIME START: 2001-09-19T13:35:00 * DATE/TIME END: 2001-09-21T07:10:00 * ELEVATION: -2387.4 m * PENETRATION: 298 m * RECOVERY: 303.17 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg198 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 32 cores; 297.6 m cored; 0.4 m drilled; 101.9 % recovery 2001-09-19T13:35:00 EVENT LABEL: 198-1209C * LATITUDE: 32.651650 * LONGITUDE: 158.506080 * DATE/TIME START: 2001-09-21T07:10:00 * DATE/TIME END: 2001-09-23T04:30:00 * ELEVATION: -2387.4 m * PENETRATION: 307.5 m * RECOVERY: 200.6 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg198 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 23 cores; 202.2 m cored; 105.3 m drilled; 99.2 % recovery 2001-09-21T07:10:00 Source 2005-01-01 publication https://doi.org/10.2973/odp.proc.sr.198.119.2005 Dutton, Andrea

dutton3@wisc.edu

https://orcid.org/0000-0002-3836-119X information author Lohmann, Kyger C https://orcid.org/0000-0002-0709-9192 information author Leckie, R Mark https://orcid.org/0000-0002-7311-2180 information author documentDigital In: Bralower, TJ; Premoli Silva, I; Malone, MJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program) 198 1-19 Source 1991-01-01 publication https://doi.org/10.1038/353225a0 Kennett, James P

kennett@geol.ucsb.edu

http://www.geol.ucsb.edu/faculty/kennett information author Stott, Lowell D

stott@usc.edu

https://orcid.org/0000-0002-2025-0731 information author documentDigital Nature 353(6341) 225-229 Source 2007-01-01 publication https://doi.org/10.1016/j.palaeo.2007.02.026 Takeda, Kotaro https://orcid.org/0000-0002-2054-2064 information author Kaiho, Kunio

kunio.kaiho.a6@tohoku.ac.jp

https://orcid.org/0000-0002-9212-1218 information author documentDigital Palaeogeography, Palaeoclimatology, Palaeoecology 251(2) 175-197 Source 2005-01-01 publication https://doi.org/10.1126/science.1109202 Tripati, Aradhna K

atri02@esc.cam.ac.uk

https://orcid.org/0000-0002-1695-1754 information author Elderfield, Henry

he101@esc.cam.ac.uk

http://www.esc.cam.ac.uk/people/academic-staff/harry-elderfield information author documentDigital Science 308(5730) 1894-1898 Source 2011-01-01 publication https://doi.org/10.1029/2010PA002092 Westerhold, Thomas

twesterhold@marum.de

https://orcid.org/0000-0001-8151-4684 information author Röhl, Ursula

uroehl@marum.de

https://orcid.org/0000-0001-9469-7053 information author Donner, Barbara

bdonner@marum.de

author McCarren, Heather K author Zachos, James C

jzachos@ernerald.ucsc.edu

https://orcid.org/0000-0001-8439-1886 information author documentDigital Paleoceanography 26 PA2216