Citation:

PANGAEA.965845

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Abstract:

This dataset presents benthic foraminiferal δ¹⁸O chronostratigraphies and associated uncertainties for Ocean Drilling Program (ODP) Site 980 and 981, based on different tuning targets including LR04 (Lisiecki and Raymo, 2005), LR09 (Lisiecki and Raymo, 2009), CENOGRID (Westerhold et al., 2020) and Probstack (Ahn et al., 2017) and based on manual versus automated tuning techniques (Middleton et al., 2024). The benthic foraminiferal δ¹⁸O record at ODP 980 is based on Cibicidoides wuellerstorfi and Cibicides kullenbergi, and was previously published (McManus et al., 1999; Flower et al., 2000; Oppo et al., 1998). The ODP Site 981 data were measured on benthic foraminifera of the genus Cibicidoides (Raymo et al., 2004). The benthic foraminiferal δ¹⁸O records of ODP Site 980 and 981 were spliced together at ~860 ka (Raymo et al., 2004). Automated tuning is based on Hidden Markov Model (HMM)-Match-based alignments (Middleton et al., 2024) generated using the automated probabilistic HMM-Match algorithm of Lin et al. (2014). The manual alignments of ODP Site 980/981 were obtained by realigning the original age model tie points (e.g., Raymo et al., 2004) to the benthic foraminiferal LR04 δ¹⁸O stack using the QAnalySeries software (Kotov and Pälike, 2018). The dataset provides the basis for investigating and discussing the uncertainties of benthic foraminiferal δ¹⁸O stratigraphies for conventional manual and automated tuning techniques and evaluate their impact on sedimentary age models over the past 1.8 Myr (Middleton et al., 2024).

Related to:

Middleton, Jennifer L; Gottschalk, Julia; Winckler, Gisela; Hanley, Jean; Knudsom, Carol; Farmer, Jesse R; Lamy, Frank; Lisiecki, Lorraine E; Expedition 383 Scientists (2023): Evaluating manual versus automated benthic foraminiferal δ18O alignment techniques for developing chronostratigraphies in marine sediment records. EGUsphere, https://doi.org/10.5194/egusphere-2023-2906

References:

Ahn, Seonmin; Khider, D; Lisiecki, Lorraine E; Lawrence, Charles E (2017): A probabilistic Pliocene–Pleistocene stack of benthic δ18O using a profile hidden Markov model. Dynamics and Statistics of the Climate System, 2(1), https://doi.org/10.1093/climsys/dzx002

Flower, Benjamin P; Oppo, Delia W; McManus, Jerry F; Venz, Kathryn A; Hodell, David A; Cullen, James L (2000): North Atlantic intermediate to deep water circulation and chemical stratification during the past 1 Myr. Paleoceanography, 15(4), 388-403, https://doi.org/10.1029/1999PA000430

Kotov, Sergey; Pälike, Heiko (2018): QAnalySeries- a cross-platform time series tuning and analysis tool. AGU Fall Meeting Abstracts, PP53D-1230

Lin, Luan; Khider, D; Lisiecki, Lorraine E; Lawrence, Charles E (2014): Probabilistic sequence alignment of stratigraphic records. Paleoceanography, 29(10), 976-989, https://doi.org/10.1002/2014PA002713

Lisiecki, Lorraine E; Raymo, Maureen E (2005): A Pliocene-Pleistocene stack of 57 globally distributed benthic d18O records. Paleoceanography, 20, PA1003, https://doi.org/10.1029/2004PA001071

Lisiecki, Lorraine E; Raymo, Maureen E (2009): Diachronous benthic δ 18 O responses during late Pleistocene terminations. Paleoceanography, 24(3), 2009PA001732, https://doi.org/10.1029/2009PA001732

McManus, Jerry F; Oppo, Delia W; Cullen, James L (1999): A 0.5-million-year record of millennial-scale climate variability in the North Atlantic. Science, 283(5404), 971-975, https://doi.org/10.1126/science.283.5404.971

Oppo, Delia W; McManus, Jerry F; Cullen, James L (1998): Abrupt climate cvents 500,000 to 340,000 years ago: evidence from subpolar North Atlantic sediments. Science, 279(5355), 1335-1338, https://doi.org/10.1126/science.279.5355.1335

Raymo, Maureen E; Oppo, Delia W; Flower, Benjamin P; Hodell, David A; McManus, Jerry F; Venz, Kathryn A; Kleiven, K F; McIntyre, K (2004): Stability of North Atlantic water masses in face of pronounced climate variability during the Pleistocene. Paleoceanography, 19(2), PA2008, https://doi.org/10.1029/2003PA000921

Westerhold, Thomas; Marwan, Norbert; Drury, Anna Joy; Liebrand, Diederik; Agnini, Claudia; Anagnostou, Eleni; Barnet, James S K; Bohaty, Steven M; De Vleeschouwer, David; Florindo, Fabio; Frederichs, Thomas; Hodell, David A; Holbourn, Ann E; Kroon, Dick; Lauretano, Vittoria; Littler, Kate; Lourens, Lucas Joost; Lyle, Mitchell W; Pälike, Heiko; Röhl, Ursula; Tian, Jun; Wilkens, Roy H; Wilson, Paul A; Zachos, James C (2020): An astronomically dated record of Earth's climate and its predictability over the last 66 million years. Science, 369, 1383-1387, https://doi.org/10.1126/science.aba6853

Project(s):

Ocean Drilling Program (ODP)

Coverage:

Median Latitude: 55.481167 * Median Longitude: -14.676533 * South-bound Latitude: 55.477400 * West-bound Longitude: -14.702267 * North-bound Latitude: 55.484933 * East-bound Longitude: -14.650800

Date/Time Start: 1995-07-10T00:00:00 * Date/Time End: 1995-07-15T00:00:00

Minimum DEPTH, sediment/rock: 0.010 m * Maximum DEPTH, sediment/rock: 109.900 m

Event(s):

162-980 * Latitude: 55.484933 * Longitude: -14.702267 * Date/Time Start: 1995-07-10T00:00:00 * Date/Time End: 1995-07-11T00:00:00 * Elevation: -2180.0 m * Penetration: 353.7 m * Recovery: 366.7 m * Location: South Atlantic Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 39 cores; 353.7 m cored; 0 m drilled; 103.7% recovery

162-981 * Latitude: 55.477400 * Longitude: -14.650800 * Date/Time Start: 1995-07-12T00:00:00 * Date/Time End: 1995-07-15T00:00:00 * Elevation: -2277.3 m * Penetration: 822.1 m * Recovery: 848.6 m * Location: South Atlantic Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 88 cores; 822.1 m cored; 0 m drilled; 103.2% recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Middleton, Jenny		ODP Site
2	DEPTH, sediment/rock	Depth sed	m	Middleton, Jenny		Geocode – mcd
3	Cibicidoides spp., δ18O	Cibicidoides spp. δ18O	‰ PDB	Middleton, Jenny		Average Cibicidoides spp d18O (VPDB permil)
4	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to Prob-stack	Output age
5	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to Prob-stack	95% Confidence Upper Age Limit
6	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to Prob-stack	95% Confidence Lower Age Limit
7	Age, dated	Age dated	ka	Middleton, Jenny	Manual Alignment to LR04	Manual Alignment to LR04 age
8	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to LR04	Output age
9	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to LR04	95% Confidence Upper Age Limit
10	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to LR04	95% Confidence Lower Age Limit
11	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to LR09 Atlantic	Output age
12	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to LR09 Atlantic	95% Confidence Upper Age Limit
13	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to LR09 Atlantic	95% Confidence Lower Age Limit
14	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to CENOGRID	Output age
15	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to CENOGRID	95% Confidence Upper Age Limit
16	Age model	Age model	ka	Middleton, Jenny	Hidden Markov Model (HMM)-Match-based alignment to CENOGRID	95% Confidence Lower Age Limit

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:

22351 data points

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