Age determination of sediments and biomarkers of ODP Hole 169-1034C
| Cobertura |
MEDIAN LATITUDE: 48.633176 * MEDIAN LONGITUDE: -123.499416 * SOUTH-BOUND LATITUDE: 48.633000 * WEST-BOUND LONGITUDE: -123.499970 * NORTH-BOUND LATITUDE: 48.633410 * EAST-BOUND LONGITUDE: -123.499000 * DATE/TIME START: 1996-08-20T18:15:00 * DATE/TIME END: 1996-08-20T18:15:00 |
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| Data(s) |
21/11/2004
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| Resumo |
The radiocarbon contents of various biomarkers extracted from the varve-counted sediments of Saanich Inlet, Canada, were determined to assess their applicability for dating purposes. Calibrated ages obtained from the marine planktonic archaeal biomarker crenarchaeol compared favorably with varve-count ages. The same conclusion could be drawn for a more general archaeal biomarker (GDGT-0), although this biomarker proved to be less reliable due to its less-specific origin. The results also lend support to earlier indications that marine crenarchaeota use dissolved inorganic carbon (DIC) as their carbon source. The average reservoir age offset DR of 430 years, determined using the crenarchaeol radiocarbon ages, varied by ±110 years. This may be caused by natural variations in ocean-atmosphere mixing or upwelling at the NE Pacific coast but variability may also be due to an inconsistency in the marine calibration curve when used at sites with high reservoir ages. |
| Formato |
application/zip, 7 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.839321 doi:10.1594/PANGAEA.839321 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Smittenberg, Rienk H; Hopmans, Ellen C; Schouten, Stefan; Hayes, John M; Eglinton, Timothy I; Sinninghe Damsté, Jaap S (2004): Compound-specific radiocarbon dating of the varved Holocene sedimentary record of Saanich Inlet, Canada. Paleoceanography, 19(2), PA2012, doi:10.1029/2003PA000927 |
| Palavras-Chave | #[ka BP]; 4-Methyl Sterol, [ka BP]s; 4-Methyl Sterols; 4-Methyl Sterols, [ka BP]; 4-Methyl Sterols, vs. VPDB; Age; AGE; Age, 14C AMS; Age, 14C calibrated; Age, dated; Age, dated standard deviation; Age, maximum/old; Age, minimum/young; Age dated; Age max; Age min; Age std dev; Atmospheric CO2; Atmospheric CO2 , [ka BP]; Calendar years, maximum/old; Calendar years, minimum/young; Cal yrs max; Cal yrs min; Comment; Crenarchaeol; Crenarchaeol, [ka BP]; Crenarchaeol, vs. VPDB; d13C; d13C Corg; d13C DIC; d13C n-alkanes; d13C skel carb; D14C; D14C std dev; delta 13C; delta 13C, dissolved inorganic carbon; delta 13C, n-alkanes; delta 13C, organic carbon; delta 13C, skeletal carbonate; Delta 14C; Delta 14C, standard deviation; Delta5 Sterols; Delta5 Sterols, [ka BP]; Delta5 Sterols, vs. VPDB; Delta R; Depth; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DEPTH, water; Depth bot; Depth top; Depth water; D R; Event; fMC; Fraction modern carbon; GDGT-0; GDGT-0, [ka BP]; GDGT-0, vs. VPDB; Label 2; Marine DICDelta_14C-49 per mil (here -49 per mil is equivalent with a DeltaR of 401 ± 25 years); Marine DICDelta_14C-49 per mil (here -49 per mil is equivalent with a DeltaR of 401 ± 25 years), [ka BP]; Mass; maximum; maximum, calendar years, sediment; minimum; minimum, calendar years, sediment; n-Alkanes; n-Alkanes, [ka BP]; Ocean Drilling Program; ODP; ODP sample designation; Phytol; Phytol, [ka BP]; Phytol (chlorophyll derived); Phytol (chlorophyll-derived); Phytol (chlorophyll-derived), [ka BP]; Phytol (chlorophyll derived), vs. VPDB; Res age; Reservoir age; Sample code/label; Sample code/label 2; SampleLabel; sediment; terrestrial macrofossils; terrestrial macrofossils, [ka BP]; TOC; TOC, [ka BP]; vs. VPDB |
| Tipo |
Dataset |
