Citation:

PANGAEA.961094

Name: Clumped isotope and d18O/d13C data from IODP Exp 320 Site U1333 at the Eocene-Oligocene Transition
Published: 2023-08-10
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Clumped isotope thermometry; Deep ocean temperatures; Eastern Equatorial Pacific Ocean; Eocene-Oligocene Transition

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Published: 2023-08-10 • DOI registered: 2023-09-08

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Abstract:

This dataset contains clumped isotope, and stable carbon and oxygen isotope data from benthic foraminifera from IODP Expedition 320 Site U1333 in the eastern equatorial Pacific Ocean. The clumped isotope data were used to reconstruct deep ocean temperatures from ~35 Ma to ~33 Ma, across the Eocene-Oligocene Transition. Data in this dataset are provided as averaged stable isotope and temperature data, whereby each individual temperature represents the average of a minimum of 30 measurements of aliquots of monospecific benthic foraminifera sourced from multiple (n = 11-34) closely spaced samples.

Keyword(s):

Clumped isotope thermometry; Deep ocean temperatures; Eastern Equatorial Pacific Ocean; Eocene-Oligocene Transition

Project(s):

Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)

Funding:

European Research Council (ERC), grant/award no. 638467 : Climate change across Cenozoic cooling steps reconstructed with clumped isotope thermometry (C4T)

Natural Environment Research Council (NERC), grant/award no. NE/K006800/1

Natural Environment Research Council (NERC), grant/award no. NE/K008390/1

Natural Environment Research Council (NERC), grant/award no. NE/K014137/1

Natural Environment Research Council (NERC), grant/award no. NE/L002531/1 : SPITFIRE - the Southampton Partnership for Innovative Training of Future Investigators Researching the Environment

Royal Society, grant/award no. Wolfson_Merit_Award

The Research Council of Norway (RCN), grant/award no. 314371

Coverage:

Latitude: 10.516000 * Longitude: -138.419000

Minimum Elevation: -4864.0 m * Maximum Elevation: -4864.0 m

Event(s):

320-U1333 * Latitude: 10.516000 * Longitude: -138.419000 * Elevation: -4864.0 m * Campaign: (Pacific Equatorial Age Transect I) * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Group	Group		Taylor, Victoria E
2	Replicates	Repl	#	Taylor, Victoria E
3	AGE	Age	ka BP	Taylor, Victoria E	Astronomically calibrated age model modified after Westerhold et al. (2014)	Geocode – weighted average
4	Age	Age	Ma	Taylor, Victoria E	Astronomically calibrated age model modified after Westerhold et al. (2014)	weighted average
5	Age, maximum/old	Age max	Ma	Taylor, Victoria E	Astronomically calibrated age model modified after Westerhold et al. (2014)	weighted average
6	Age, minimum/young	Age min	Ma	Taylor, Victoria E	Astronomically calibrated age model modified after Westerhold et al. (2014)	weighted average
7	Cibicidoides spp., δ13C	Cibicidoides spp. δ13C	‰ PDB	Taylor, Victoria E	Weighted average	vs. VPDB: benthic foraminiferal carbon stable isotopes
8	Cibicidoides spp., δ18O	Cibicidoides spp. δ18O	‰ PDB	Taylor, Victoria E	Weighted average	vs. VPDB: benthic foraminiferal carbon stable isotopes
9	Species	Species		Taylor, Victoria E
10	Δ47	Δ47	‰	Taylor, Victoria E	I-CDES scale (Bernasconi et al., 2021)	average of n replicate measurements
11	Δ47, standard deviation	Δ47 std dev	±	Taylor, Victoria E	I-CDES scale (Bernasconi et al., 2021)
12	Δ47, standard error	Δ47 std e	±	Taylor, Victoria E	I-CDES scale (Bernasconi et al., 2021)
13	Deep water temperature	DWT	°C	Taylor, Victoria E	Calculated using Meinicke et al. (2020) calibration updated to the I-CDES scale by Meinicke et al. (2021)
14	Confidence interval	CI		Taylor, Victoria E	Calculated using Meinicke et al. (2020) calibration updated to the I-CDES scale by Meinicke et al. (2021)	Temperture 68 % CI; 68 % confidence interval combining both analytical and calibration uncertainty; error propogated using Monte Carlo simulations

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

65 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Group	2 Repl [#]	3 Age [ka BP]	4 Age [Ma]	5 Age max [Ma]	6 Age min [Ma]	7 Cibicidoides spp. δ13C [‰ PDB]	8 Cibicidoides spp. δ18O [‰ PDB]	9 Species	10 Δ47 [‰]	11 Δ47 std dev [±]	12 Δ47 std e [±]	13 DWT [°C]	14 CI
1	49	33245	33.245	33.310	33.192	1.166	1.929	Cibicidoides spp.	0.644	0.025	0.004	10.942	1.061
2	48	33538	33.538	33.603	33.481	1.416	2.070	Cibicidoides spp.	0.649	0.034	0.005	9.511	1.411
3	44	33877	33.877	33.969	33.802	1.070	1.562	Cibicidoides spp.	0.639	0.030	0.005	12.328	1.355
4	41	34645	34.645	34.781	34.536	0.772	1.081	Cibicidoides spp.	0.647	0.028	0.004	10.118	1.269
5	35	34926	34.926	35.020	34.808	0.638	1.067	Cibicidoides spp.	0.646	0.026	0.004	10.353	1.299