Data Description

  Show Map Google Earth  RIS BibTeX
Citation:
Ho, SL et al. (2011): Table 1 Core site, fractional abundance of individual isoprenoid GDGTs and TEX86 values. doi:10.1594/PANGAEA.767415,
Supplement to: Ho, Sze Ling; Yamamoto, Masanobu; Mollenhauer, Gesine; Minagawa, Masao (2011): Core top TEX86 values in the south and equatorial Pacific. Organic Geochemistry, 42(1), 94-99, doi:10.1016/j.orggeochem.2010.10.012
Abstract:
TEXL86 and TEXH86 are organic palaeothermometers based on the lipids of Group 1 Crenarchaeota, recently proposed as a modified version of the original TEX86 index, but with significantly improved geographical coverage. Since few data from the global core top calibration are from the Pacific, this study was carried out to assess whether the global core top calibration is regionally biased or not. The result of principal components analysis of the fractional abundance of GDGTs, an analysis of variance (ANOVA) and the comparison of the residuals of TEXH 86 derived sea surface temperature (SST) estimates of the Pacific subset with that of the global data set suggest that the Pacific subset has a similar TEXH 86-SST relationship with the global data set. However, the regression line through the Pacific data and an ANOVA on the residuals of TEXL 86 derived SST estimates suggest otherwise. The contradictory findings are likely to stem from the large scatter in the Pacific TEXL 86 values in the mid temperature range. While regionality does not seem to exert a strong bias on TEXL 86 and TEXH 86 calibration, it appears that there is a strong need to resolve the large scatter in the global data set, especially in the mid and high latitudes, in order to improve the calibration for a better SST estimation.
Coverage:
Median Latitude: -25.453335 * Median Longitude: -146.140000 * South-bound Latitude: -67.216700 * West-bound Longitude: 140.000000 * North-bound Latitude: 8.033300 * East-bound Longitude: -94.916700
Minimum DEPTH, sediment/rock: 0.01 m * Maximum DEPTH, sediment/rock: 0.01 m
Event(s):
HY03 * * Latitude: 8.033300 * Longitude: -94.950000 * Elevation: -3661.0 m * Location: Pacific Ocean * * Campaign: KH-03-1 * * Basis: Hakuho Maru * * Device: Gravity corer (GC) *
HY04 * * Latitude: 4.033300 * Longitude: -95.050000 * Elevation: -3563.0 m * Location: Pacific Ocean * * Campaign: KH-03-1 * * Basis: Hakuho Maru * * Device: Gravity corer (GC) *
HY05 * * Latitude: 2.016700 * Longitude: -95.500000 * Elevation: -2886.0 m * Location: Pacific Ocean * * Campaign: KH-03-1 * * Basis: Hakuho Maru * * Device: Gravity corer (GC) *
+
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event label *Event
2Campaign of event *Campaign
3Latitude of event *Latitude
4Longitude of event *Longitude
5DEPTH, sediment/rock *DepthmGeocode
6Temperature, water, interpolated *Temp interp°CHo, Sze Ling *
7Elevation of event *Elevationm
8Acyclic glycerol dialkyl glycerol tetraether, fractional abundance *GDGT-0Ho, Sze Ling *
9Monocyclic glycerol dialkyl glycerol tetraether, fractional abundance *GDGT-1Ho, Sze Ling *
10Dicyclic glycerol dialkyl glycerol tetraether, fractional abundance *GDGT-2Ho, Sze Ling *
11Tricyclic glycerol dialkyl glycerol tetraether, fractional abundance *GDGT-3Ho, Sze Ling *
12Crenarchaeol, fractional abundance *GDGT-5Ho, Sze Ling *
13Crenarchaeol regio-isomer, fractional abundance *GDGT-5 reg-isoHo, Sze Ling *
14Tetraether index of 86 carbon atoms *TEX86Ho, Sze Ling *L
15Tetraether index of 86 carbon atoms *TEX86Ho, Sze Ling *H
License:
Size:
180 data points

Download Data

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

View dataset as HTML