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Pallacks, Sven; Ziveri, Patrizia; Jannke, Helen A; Lin, Chien-Hsiang; Subhas, Adam V; Galbraith, Eric Douglas; Kaboth-Bahr, Stefanie; Friedrich, Oliver; Bahr, André; Koutsodendris, Andreas; Pross, Jörg; Norris, Richard D (2025): Downcore color scan data from sediment core M144_5-6 from the central western Aegean Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974496, In: Pallacks, S et al. (2025): Fish otolith and planktic foraminiferal abundances and radiocarbon dates from sediment kasten core M144_5-6 in the central western Aegean Holocene [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.974530

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Published: 2025-02-20 • DOI registered: 2025-03-21

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Abstract:
The dataset contains a downcore color scan of Kasten Core M144 KC5-6 for each 1cm. The analysis was performed onboard the R/V Meteor using a A MINOLTA CM-700d hand-held spectrophotometer combined with a CM-A178 target mask (Ø 8 mm, with plate). Color data were reported in the CIELAB space using the L*a*b* system. To calibrate the spectrophotometer, a Konica Minolta White Calibration Cap CM-A177 and Zero Calibration Box CM-A182 were used. Spectral reflectance was measured over a wavelength spectrum from 400 to 700 nm. Low L* and a* values representing darker, organic rich layers were defined sapropel phases as discussed in Pallacks et al. (in review).
Keyword(s):
Aegean Sea; Holocene; Mediterranean Sea; Otolith; Oxygen deficient zones; Planktonic foraminifera; productivity; radiocarbon age
Related to:
Pallacks, Sven; Ziveri, Patrizia; Jannke, Helen A; Lin, Chien-Hsiang; Subhas, Adam V; Galbraith, Eric Douglas; Kaboth-Bahr, Stefanie; Friedrich, Oliver; Bahr, André; Koutsodendris, Andreas; Pross, Jörg; Norris, Richard D (2025): Ocean deoxygenation linked to ancient mesopelagic fish decline. Communications Earth & Environment, 6(1), 596, https://doi.org/10.1038/s43247-025-02568-8
Funding:
Generalitat de Catalunya, grant/award no. 2021 SGR 00640: MERS
Ministerio de Ciencia, Innovación y Universidades, grant/award no. CEX2019-000940-M
Ministerio de Ciencia, Innovación y Universidades, grant/award no. MDM-2015-0552-16-2
Ministerio de Ciencia, Innovación y Universidades, grant/award no. PID2020-113526RB-I00
Ministry of Economy, Industry and Competitiveness (MINECO), grant/award no. BES-2017-080730
National Science Foundation (NSF), grant/award no. 1821140: NSF-EAGER: Eastern Mediterranean Paleoclimate and Ecosystems during the Rise of Early Civilizations (EMPIRE)
National Science Foundation (NSF), grant/award no. 1923998: Biogenic Calcium Carbonate Solubilities and Reaction Rates by Lab and Field Saturometry
Coverage:
Latitude: 38.925750 * Longitude: 23.644733
Date/Time Start: 2017-12-31T11:00:00 * Date/Time End: 2017-12-31T11:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 2.725 m
Event(s):
M144_5-6 (KC5-6) * Latitude: 38.925750 * Longitude: 23.644733 * Date/Time: 2017-12-31T11:00:00 * Elevation: -559.2 m * Recovery: 3.45 m * Location: S Skopelos * Campaign: M144 (EMPIRE) * Basis: Meteor (1986) * Method/Device: Kasten corer (KAL) * Comment: core length 345 cm, 69.5 kN
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 DEPTH, sediment/rockDepth sedmPallacks, SvenGeocode
2 Color, L*, lightnessL*Pallacks, SvenSpectrophotometer Konica Minolta CM-700dL* (10°/D65)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
271 data points

Data

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

1 
Depth sed [m]		2 
L*
0.00546.20
0.01546.91
0.02547.06
0.03551.48
0.04551.43
0.05553.25
0.06549.42
0.07552.06
0.08552.53
0.09550.85
0.10554.08
0.11554.52
0.12553.85
0.13552.97
0.14553.73
0.15552.97
0.16553.94
0.17554.11
0.18554.10
0.19555.13
0.20554.89
0.21555.60
0.22549.54
0.23554.39
0.24554.44
0.25553.79
0.26553.08
0.27553.04
0.28552.66
0.29552.55
0.30553.26
0.31552.43
0.32551.87
0.33551.60
0.34550.44
0.35551.23
0.36550.49
0.37550.82
0.38550.50
0.39549.61
0.40550.92
0.41551.28
0.42551.18
0.43552.30
0.44552.04
0.45551.43
0.46552.51
0.47552.77
0.48553.22
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0.51552.47
0.52553.07
0.53552.22
0.54551.61
0.55551.71
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0.58551.34
0.59551.97
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0.80551.15
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0.82550.29
0.83550.72
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0.86551.13
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0.99552.31
1.02551.26
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1.06549.97
1.07551.05
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1.09551.13
1.10551.73
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1.14550.92
1.15550.86
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1.19552.08
1.20551.47
1.21550.80
1.22550.76
1.23551.41
1.24551.55
1.25550.91
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1.27552.09
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1.29551.16
1.30551.82
1.31551.21
1.32551.92
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1.72549.04
1.73549.22
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1.75549.10
1.76548.78
1.77550.54
1.78551.46
1.79547.92
1.80547.70
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1.82546.48
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1.95544.13
1.96546.31
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1.98548.98
1.99539.55
2.00546.37
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2.02546.32
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2.05547.33
2.06547.59
2.07544.21
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2.12541.55
2.13540.29
2.14543.90
2.15542.92
2.16543.05
2.17544.39
2.18542.33
2.19541.63
2.20541.94
2.21541.62
2.22543.67
2.23543.71
2.24543.39
2.25543.83
2.26543.03
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2.28544.46
2.29541.88
2.30541.68
2.31543.11
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2.33542.96
2.34544.27
2.35543.28
2.36546.41
2.37546.72
2.38546.26
2.39549.85
2.40547.06
2.41548.11
2.42550.16
2.43552.82
2.44552.33
2.45551.94
2.46552.10
2.47549.76
2.48548.91
2.49549.25
2.50550.57
2.51549.56
2.52550.05
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2.54549.89
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2.65548.70
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2.68549.21
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2.70549.55
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2.72549.50