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Zhao, Meixun; Eglinton, Geoffrey; Haslett, Simon K; Jordan, Richard William; Sarnthein, Michael; Zhang, Zhaohui (2000): Averages and ranges of paleoenvironmental proxy records of ODP Hole 108-658C (Table 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.757616, Supplement to: Zhao, M et al. (2000): Marine and terrestrial biomarker records for the last 35,000 years at ODP site 658C off NW Africa. Organic Geochemistry, 31(9), 919-930, https://doi.org/10.1016/S0146-6380(00)00027-9

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Abstract:
Several high-resolution proxy environmental records have been obtained for the last 35 kyr from ODP Hole 658C, a well-studied site ca. 200 km off Cap Blanc, NW Africa. The collective assessment based on the marine proxies (UK'37 SST, contents of TOC and chlorins, Upwelling Radiolarian Index and the percentage of Florisphaera profunda), surprisingly indicates that the last glacial maximum (LGM) was characterized by warmer sea surface temperature (SST), weaker upwelling, and lower marine productivity, compared with the preceding older glacial and subsequent deglaciation periods. Of the terrigenous proxies, the mean grain size of the non-carbonate fraction and the terrigenous alkane content indicate that wind strength and aridity were high. The weaker upwelling at the 658 site during the LGM may have resulted from changes in the strength and direction of the wind systems and/or shifts in the position and geometry of the upwelling cell.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 20.749200 * Longitude: -18.580800
Date/Time Start: 1986-03-08T00:45:00 * Date/Time End: 1986-03-08T16:00:00
Minimum Elevation: -2273.0 m * Maximum Elevation: -2273.0 m
Event(s):
108-658C * Latitude: 20.749200 * Longitude: -18.580800 * Date/Time Start: 1986-03-08T00:45:00 * Date/Time End: 1986-03-08T16:00:00 * Elevation: -2273.0 m * Penetration: 72.9 m * Recovery: 70.38 m * Location: Canarias Sea * Campaign: Leg108 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 72.9 m cored; 0 m drilled; 96.5 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 EpochEpochZhao, Meixun
2 AGEAgeka BPGeocode
3 Age, minimum/youngAge minkaZhao, Meixun
4 Age, maximum/oldAge maxkaZhao, Meixun
5 Sea surface temperature, annual meanSST (1-12)°CZhao, MeixunCalculated from UK'37 (Prahl et al., 1988)average
6 Sea surface temperature, annual meanSST (1-12)°CZhao, MeixunCalculated from UK'37 (Prahl et al., 1988)minimum
7 Sea surface temperature, annual meanSST (1-12)°CZhao, MeixunCalculated from UK'37 (Prahl et al., 1988)maximum
8 Carbon, organic, totalTOC%Zhao, Meixun
9 Carbon, organic, total, minimumTOC min%Zhao, Meixun
10 Carbon, organic, total, maximumTOC max%Zhao, Meixun
11 ChlorinsChlorinsµg/gZhao, Meixunaverage
12 ChlorinsChlorinsµg/gZhao, Meixunminimum
13 ChlorinsChlorinsµg/gZhao, Meixunmaximum
14 Upwelling radiolarian indexURIZhao, Meixunaverage
15 Upwelling radiolarian indexURIZhao, Meixunminimum
16 Upwelling radiolarian indexURIZhao, Meixunmaximum
17 Florisphaera profundaF. profunda%Zhao, Meixunaverage
18 Florisphaera profundaF. profunda%Zhao, Meixunminimum
19 Florisphaera profundaF. profunda%Zhao, Meixunmaximum
20 Grain size, meanGrain size meanµmZhao, Meixunaverage
21 Grain size, meanGrain size meanµmZhao, Meixunminimum
22 Grain size, meanGrain size meanµmZhao, Meixunmaximum
23 TerrigenousTerr%Zhao, Meixunaverage
24 TerrigenousTerr%Zhao, Meixunminimum
25 TerrigenousTerr%Zhao, Meixunmaximum
26 n-Alkane, total per unit sediment massn-Alkane tot/sedµg/gZhao, Meixunaverage
27 n-Alkane, total per unit sediment massn-Alkane tot/sedµg/gZhao, Meixunminimum
28 n-Alkane, total per unit sediment massn-Alkane tot/sedµg/gZhao, Meixunmaximum
29 n-Alkane C29, δ13CC29 δ13C‰ PDBZhao, Meixunaverage
30 n-Alkane C29, δ13CC29 δ13C‰ PDBZhao, Meixunminimum
31 n-Alkane C29, δ13CC29 δ13C‰ PDBZhao, Meixunmaximum
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
150 data points

Data

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

1 
Epoch		2 
Age [ka BP]		3 
Age min [ka]		4 
Age max [ka]		5 
SST (1-12) [°C]
(average)		6 
SST (1-12) [°C]
(minimum)		7 
SST (1-12) [°C]
(maximum)		8 
TOC [%]		9 
TOC min [%]		10 
TOC max [%]		11 
Chlorins [µg/g]
(average)		12 
Chlorins [µg/g]
(minimum)		13 
Chlorins [µg/g]
(maximum)		14 
URI
(average)		15 
URI
(minimum)		16 
URI
(maximum)		17 
F. profunda [%]
(average)		18 
F. profunda [%]
(minimum)		19 
F. profunda [%]
(maximum)		20 
Grain size mean [µm]
(average)		21 
Grain size mean [µm]
(minimum)		22 
Grain size mean [µm]
(maximum)		23 
Terr [%]
(average)		24 
Terr [%]
(minimum)		25 
Terr [%]
(maximum)		26 
n-Alkane tot/sed [µg/g]
(average)		27 
n-Alkane tot/sed [µg/g]
(minimum)		28 
n-Alkane tot/sed [µg/g]
(maximum)		29 
C29 δ13C [‰ PDB]
(average)		30 
C29 δ13C [‰ PDB]
(minimum)		31 
C29 δ13C [‰ PDB]
(maximum)
Late Holocene3.06020.618.321.52.131.622.338.93.916.83.81.77.2228362120225944621.200.61.7-28-29-26
Early Holocene8.010620.919.421.51.691.541.845.11.711.76.94.010.52610392019214339480.860.51.7-27-28-25
Deglaciation14.0181018.717.719.61.550.871.946.52.418.47.04.19.593262320274740580.920.62.0-25-28-23
Last glacial max20.0221819.618.420.30.750.530.962.01.04.82.91.65.4167273028325753590.650.50.9-24-29-21
Older glacial28.5352218.516.019.51.400.601.843.81.512.23.00.94.5103222725306054641.200.51.6-26-26-24