de.pangaea.dataset785626
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dataset
PANGAEA
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2026-05-01T03:16:01Z
https://doi.pangaea.de/10.1594/PANGAEA.785626
<gco:CharacterString>(Table 1) Geochemical analyses of ostracode shells from ODP Site 133-822</gco:CharacterString>
1993-01-01
publication
https://doi.org/10.1594/PANGAEA.785626
Corrège, Thierry
author
PANGAEA
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tableDigital
Supplement to: Corrège, Thierry (1993): Preliminary results of paleotemperature reconstruction using the magnesim to calcium ratio of deep-sea ostracode shells from the Late Quaternary of Site 822, Leg 133 (wetsern Coral Sea). In: McKenzie, JA; Davies, PJ; Palmer-Julson, A; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 133, 175-180, https://doi.org/10.2973/odp.proc.sr.133.222.1993
Analyses of living benthic ostracodes collected in the Coral Sea show a direct relationship between water temperature and the Mg/Ca ratio in the ostracode shells. Fossil ostracodes from Hole 822A (western edge of the Queensland Trough) were analyzed for their Mg and Ca content, and paleotemperatures are inferred using equations derived from the modern material. The bottom-water temperature record from Site 822, spanning the last 120,000 yr, indicates substantial cooling during glacial periods. It also documents important variations during an interval that is considered to correspond to isotopic stage 5. Although still preliminary, these results show that trace-element analyses of ostracode shells have a great potential for paleoceanographic studies.
completed
Corrège, Thierry
principalInvestigator
ODP
Ocean Drilling Program
theme
<gco:CharacterString>PANGAEA Project List</gco:CharacterString>
1995-01-01
creation
PANGAEA
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CC-BY-3.0: Creative Commons Attribution 3.0 Unported
textTable
und
geoscientificInformation
146.215
146.215
-16.423
-16.423
1990-09-17T00:00:00
1990-09-20T00:00:00
0.1
27.0
Sediment depth is given in mbsf. When more than one valve was analyzed in a sample, the mean Mg/Ca and the associated standard deviation were calculated. For these samples, the paleotemperature was calculated from the mean Mg/Ca.
DEPTH, sediment/rock
physicalMeasurement
m
m
Sample code/label
thematicClassification
Magnesium cation
physicalMeasurement
meq/l
meq/l
Calcium cation
physicalMeasurement
meq/l
meq/l
Magnesium/Calcium ratio
thematicClassification
Magnesium/Calcium ratio
thematicClassification
mean
Magnesium/Calcium ratio, standard deviation
physicalMeasurement
mean
±
±
Temperature, calculated
physicalMeasurement
°C
°C
text/tab-separated-values
unknown
https://doi.pangaea.de/10.1594/PANGAEA.785626?format=textfile
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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: 133-822 * LATITUDE: -16.423000 * LONGITUDE: 146.215000 * DATE/TIME START: 1990-09-17T00:00:00 * DATE/TIME END: 1990-09-20T00:00:00 * ELEVATION: -967.0 m * PENETRATION: 433.9 m * RECOVERY: 387.5 m * LOCATION: Coral Sea * CAMPAIGN: Leg133 * BASIS: Joides Resolution * METHOD/DEVICE: Composite Core
47 cores; 433.9 m cored; 0 m drilled; 89.3% recovery
1990-09-17T00:00:00