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Hättig, Katrin; Varma, Devika; van der Meer, Marcel T J; Schouten, Stefan (2023): Hydrogen isotopic composition of alkenones and oxygen isotopes of benthic foraminifera from ODP Site 202-1235 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.958880

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Abstract:
Hydrogen isotopic compositions of C37 long chain alkenones (δ2HC37) have been proposed as a proxy for past seawater salinity and applied in several regions. However, previous studies were based solely on a single core and often suggested unlikely large changes in salinity. Here we present a new δ2HC37 record, in combination with oxygen isotopes of benthic foraminifera from the same samples, from a sediment core from the Chilean margin (ODP site 1235). The observed negative shift in δ2HC37 of 20‰ during deglaciation was identical to that of the nearby located, but deeper, ODP core 1234 (Weiss et al., 2019), suggesting a regionally consistent shift in δ2HC37. Here we present an isotope dataset spanning 0.15-94.43 mbsf. The age model of Haettig et al., 2023 covers the last 40.000 years spanning 0.15-49.50 mbfs.
Keyword(s):
Alkenones; Chile Margin; hydrogen isotopic composition; oxygen isotopes; Uvigerina
Supplement to:
Hättig, Katrin; Varma, Devika; Schouten, Stefan; van der Meer, Marcel T J (2023): Glacial-interglacial sea water isotope change near the Chilean Margin as reflected by δ 2 H of C37 alkenones. https://doi.org/10.5194/egusphere-2023-1042
Related to:
Hättig, Katrin; Varma, Devika; van der Meer, Marcel T J; Reichart, Gert-Jan; Schouten, Stefan (2023): Age model for ODP Leg 202 Site 1235 and Site 1234. PANGAEA, https://doi.org/10.1594/PANGAEA.957070
Varma, Devika; Hättig, Katrin; van der Meer, Marcel T J; Reichart, Gert-Jan; Schouten, Stefan (2023): SST Proxies Chilean (ODP Leg 202 Site 1235 and Site 1234) and Angola Margin (ODP Leg 175 Site 1078 and Site 1079). PANGAEA, https://doi.org/10.1594/PANGAEA.957090
Project(s):
NIOZ Royal Netherlands Institute for Sea Research, and Utrecht University (NIOZ_UU)
Ocean Drilling Program (ODP)
Funding:
European Commission (EC), grant/award no. 847504: Local training network: Netherlands Earth System Science Centre: “NESSC”
Coverage:
Median Latitude: -36.159897 * Median Longitude: -73.566380 * South-bound Latitude: -36.159980 * West-bound Longitude: -73.566500 * North-bound Latitude: -36.159850 * East-bound Longitude: -73.566260
Date/Time Start: 2002-04-17T04:15:00 * Date/Time End: 2002-04-18T10:00:00
Minimum DEPTH, sediment/rock: 0.15 m * Maximum DEPTH, sediment/rock: 94.43 m
Event(s):
202-1235A  * Latitude: -36.159850 * Longitude: -73.566500 * Date/Time Start: 2002-04-17T04:15:00 * Date/Time End: 2002-04-17T19:55:00 * Elevation: -489.7 m * Penetration: 181.3 m * Recovery: 182.78 m * Location: South Pacific Ocean * Campaign: Leg202 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 20 cores; 181.3 m cored; 0 m drilled; 100.8 % recovery
202-1235B  * Latitude: -36.159860 * Longitude: -73.566380 * Date/Time Start: 2002-04-17T19:55:00 * Date/Time End: 2002-04-18T10:00:00 * Elevation: -488.5 m * Penetration: 176.2 m * Recovery: 178.81 m * Location: South Pacific Ocean * Campaign: Leg202 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 176.2 m cored; 0 m drilled; 101.5 % recovery
202-1235C  * Latitude: -36.159980 * Longitude: -73.566260 * Date/Time: 2002-04-18T10:00:00 * Elevation: -488.5 m * Penetration: 152.5 m * Recovery: 151.83 m * Location: South Pacific Ocean * Campaign: Leg202 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 16 cores; 152 m cored; 0.5 m drilled; 99.9 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventHättig, Katrin
2 Sample code/labelSample labelHättig, KatrinDSDP/ODP/IODP sample designation
3 DEPTH, sediment/rockDepth sedmHättig, KatrinGeocode – mbsf
4 Depth, compositeDepth compmcdHättig, Katrin
5 AGEAgeka BPHättig, KatrinGeocode
6 δ Deuterium, alkenone, C37δD C37‰ SMOWHättig, KatrinIsotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, Delta Vvs. VSMOW
7 δ Deuterium, alkenone, C37, standard deviationδD C37 std dev±Hättig, Katrin
8 Alkenone C37:3, δDC37:3 δD‰ SMOWHättig, KatrinIsotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, Delta Vvs. VSMOW
9 Alkenone C37:3, δD, standard deviationC37:3 δD std dev±Hättig, Katrin
10 Alkenone C37:2, δDC37:2 δD‰ SMOWHättig, KatrinIsotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, Delta Vvs. VSMOW
11 Alkenone C37:2, δD, standard deviationC37:2 δD std dev±Hättig, Katrin
12 δ Deuterium, alkenone, C38δD C38‰ SMOWHättig, KatrinIsotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, Delta Vvs. VSMOW
13 δ Deuterium, alkenone, C38, standard deviationδD C38 std dev±Hättig, Katrin
14 ReplicatesRepl#Hättig, KatrinNumber of replication analysis of hydrogen isotopes
15 Uvigerina spp., δ18OUvigerina spp. δ18O‰ PDBHättig, KatrinMass spectrometer, Finnigan, MAT 253; coupled with Carbonate preparation device, Finnigan, KIEL VIvs. VPDB
16 ReplicatesRepl#Hättig, KatrinNumber of replication analysis of oxygen isotopes
17 Uvigerina spp., δ18O standard deviationUvigerina spp. δ18O std dev±Hättig, Katrin
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
649 data points

Data

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

1 
Event		2 
Sample label
(DSDP/ODP/IODP sample designation)		3 
Depth sed [m]
(mbsf)		4 
Depth comp [mcd]		5 
Age [ka BP]		6 
δD C37 [‰ SMOW]
(vs. VSMOW, Isotope Ratio Mass...)		7 
δD C37 std dev [±]		8 
C37:3 δD [‰ SMOW]
(vs. VSMOW, Isotope Ratio Mass...)		9 
C37:3 δD std dev [±]		10 
C37:2 δD [‰ SMOW]
(vs. VSMOW, Isotope Ratio Mass...)		11 
C37:2 δD std dev [±]		12 
δD C38 [‰ SMOW]
(vs. VSMOW, Isotope Ratio Mass...)		13 
δD C38 std dev [±]		14 
Repl [#]
(Number of replication analysi...)		15 
Uvigerina spp. δ18O [‰ PDB]
(vs. VPDB, Mass spectrometer, ...)		16 
Repl [#]
(Number of replication analysi...)		17 
Uvigerina spp. δ18O std dev [±]
202-1235A 202-1235A-1H-1,11-150.150.152.4520.06
202-1235A202-1235A-1H-1,18-200.200.200.902.2710.07
202-1235A202-1235A-1H-1,33-340.340.341.11-1931-1882-1992-20382
202-1235A202-1235A-1H-1,47-490.490.491.49
202-1235A202-1235A-1H-1,63-640.640.642.18-1923-1860-1971-19832
202-1235A202-1235A-1H-1,86-880.880.884.00
202-1235A202-1235A-1H-1,103-1041.041.045.56-1930-1850-1990-20252
202-1235A202-1235A-1H-1,110-1121.121.127.48
202-1235A202-1235A-1H-1,117-1191.191.199.06
202-1235A202-1235A-1H-1,121-1231.231.239.85
202-1235A202-1235A-1H-1,137-1401.401.4012.70-1861-1755-1951-193023.2320.14
202-1235A202-1235A-1H-2,8-101.601.6013.93-1831-1711-1902-17512
202-1235B 202-1235B-1H-2,78-802.302.4015.44-1852-1755-1951-197123.3920.08
202-1235B202-1235B-1H-4,40-424.925.0217.063.4310.07
202-1235A202-1235A-2H-3,106-1086.888.9818.40-1802-1701-1873-187323.8610.05
202-1235A202-1235A-2H-6,18-2010.5012.6019.56-1783-1720-1872-187424.0010.02
202-1235C 202-1235C-2H-4,39-4114.9115.0120.56-1733-1681-1812-1831023.7120.13
202-1235A202-1235A-3H-2,88-9014.7017.5021.773.8110.06
202-1235A202-1235A-3H-2,134-13615.1617.9622.01-1760-1661-1912-1748
202-1235A202-1235A-3H-2,137-13915.1917.9922.02-1783-1732-1893-186423.8630.07
202-1235A202-1235A-3H-3,23-2515.5518.3522.18-1731-1641-1844-180122
202-1235A202-1235A-3H-3,73-7516.0518.8522.39-1772-1682-1882-17412
202-1235A202-1235A-3H-3,112-11416.4419.2422.55-1723-1644-1834-17502
202-1235A202-1235A-3H-3,138-14016.7019.5022.653.9610.07
202-1235B202-1235B-3H-2,70-7218.7221.0223.19-1760-1710-1842-19212
202-1235B202-1235B-3H-3,18-2019.7022.0023.543.6810.06
202-1235B202-1235B-3H-3,118-12020.7023.0023.96-1692-1659-1905
202-1235B202-1235B-3H-4,70-7221.7224.0224.38-1790-1721-1872-18512
202-1235C202-1235C-3H-3,28-3022.8026.0025.204.1510.05
202-1235C202-1235C-3H-3,128-13023.8027.0025.81-1801-1720-1891-189124.0220.13
202-1235C202-1235C-3H-4,128-13025.3028.5026.73
202-1235C202-1235C-3H-5,130-13226.8230.0227.66-1781-1676-1991-184523.1310.04
202-1235A202-1235A-4H-4,33-3526.6531.5028.563.8610.05
202-1235A202-1235A-4H-5,33-3528.1533.0029.48-1793-1760-1862-182723.5110.03
202-1235A202-1235A-4H-7,33-3531.1536.0031.32-1801-1732-1892-1721023.4910.05
202-1235C202-1235C-4H-2,129-13131.8137.5132.243.5610.05
202-1235C202-1235C-4H-3,130-13233.3239.0233.17-1781-1741-1852-183923.6210.03
202-1235C202-1235C-4H-5,130-13236.3242.0235.00-1784-1704-1846-18193
202-1235B202-1235B-5H-2,59-6137.6143.5035.91
202-1235B202-1235B-5H-3,59-6139.1145.0036.83-1801-1771-1842-189123.5220.05
202-1235C202-1235C-5H-2,61-6340.6348.0038.67-1821-1771-1861-19422
202-1235C202-1235C-5H-3,61-6342.1349.5039.60
202-1235C202-1235C-5H-4,61-6343.6351.00-1760-1694-1821-184123.2820.02
202-1235A202-1235A-6H-4,70-7246.0254.00-1814-1774-1864-19102
202-1235A202-1235A-6H-4,72-7446.0454.02-1823-1780-1862-19482
202-1235B202-1235B-6H-4,144-14650.9660.00-1781-1721-1851-186123.6510.05
202-1235B202-1235B-6H-6,144-14653.9663.00-1872-1822-1962-196523.8210.07
202-1235B202-1235B-7H-1,118-12055.7067.83-1812-1732-18823
202-1235B202-1235B-7H-2,88-9056.9969.13-1771-1701-1841-190023.6210.08
202-1235B202-1235B-7H-3,58-6058.1070.23-1773-1711-18133.3910.05
202-1235B202-1235B-7H-4,28-3059.3071.603.4110.04
202-1235B202-1235B-7H-4,146-14860.4872.61-1801-1707-193101
202-1235B202-1235B-8H-1,44-4664.4677.003.7210.06
202-1235B202-1235B-8H-1,144-14665.4678.00-1911-1892-1932-20032
202-1235B202-1235B-8H-3,144-14668.4681.00-1880-1801-1931-196223.9610.04
202-1235A202-1235A-9H-1,47-4969.7984.00-1814-1811-1886-19082
202-1235A202-1235A-9H-2,99-10171.8186.02-1853-1772-1913-19763
202-1235A202-1235A-9H-3,47-4972.7987.003.9610.04
202-1235B202-1235B-9H-2,85-8775.8788.00-1833-1791-1871-190723.5920.11
202-1235B202-1235B-9H-3,33-3576.8588.983.4510.07
202-1235B202-1235B-9H-3,135-13777.8790.00-1852-1790-1921-19792
202-1235B202-1235B-8H-4,85-8778.8791.003.7710.04
202-1235B202-1235B-9H-5,33-3579.8591.98-1802-1730-1856-19112
202-1235B202-1235B-9H-6,85-8781.8794.00-1804-1771-1853-191523.8210.03
202-1235A202-1235A-11H-1,11-1388.43104.00-1813-1761-1902-19042
202-1235A202-1235A-11H-2,61-6390.43106.00-1784-1761-1851-19472
202-1235A202-1235A-11H-3,11-1391.43107.003.6510.05
202-1235A202-1235A-11H-3,111-11392.43108.00-1830-1770-1900-19722
202-1235A202-1235A-11H-5,11-1394.43110.00-1831-1770-1911-190223.4720.20