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Wei, Bingbing (2025): Geochemical properties of surface sediments in the inner Gulf of Thailand [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.981135

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Published: 2025-04-17 • DOI registered: 2025-04-17

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Abstract:
This dataset compiles published geochemical properties of surface sediments in the inner Gulf of Thailand, including sediment composition (clay, silt and sand), median grain size, fine fraction proportion, total organic carbon content (TOC), TOC/total nitrogen (TN) ratio, δ13C of bulk OC, as well as the abundances of total, high-molecular-weight (HMW) and low molecular-weight (LMW) alkanes. These data are sourced from Bai et al. (2021) and Lin et al. (2023). Using the published TOC/TN ratio and δ13C of bulk OC, we estimated the contributions of marine, river, and coastal organic carbon sources through a Bayesian Markov chain Monte Carlo (MCMC) model.
Keyword(s):
Chao Phraya River; fluvial sediment transport; Gulf of Thailand; Sediment accumulation rates
Source:
Bai, Yazhi; Hu, Limin; Wu, Bin; Qiao, Shuqing; Fan, Dejiang; Liu, Shengfa; Yang, Gang; Liu, Jihua; Kornkanitnan, Narumol; Khokiattiwong, Somkiat; Shi, Xuefa (2021): Impact of Source Variability and Hydrodynamic Forces on the Distribution, Transport, and Burial of Sedimentary Organic Matter in a Tropical Coastal Margin: The Gulf of Thailand. Journal of Geophysical Research: Biogeosciences, 126(9), e2021JG006434, https://doi.org/10.1029/2021JG006434
Lin, Baozhi; Liu, Zhifei; Zhao, Meixun; Sompongchaiyakul, Penjai; Zhang, Hailong; Blattmann, Thomas Michael; Feng, Shuo; Wiesner, Martin G; Le, Khanh Phon; Meas, Rithy; Sathiamurthy, Edlic (2023): Compositions and sources of sedimentary organic carbon on the tropical epicontinental sea. Geochimica et Cosmochimica Acta, 351, 32-44, https://doi.org/10.1016/j.gca.2023.04.030
Project(s):
Changing Earth – Sustaining our Future (Helmholtz_ChangingEarth)
Coverage:
Median Latitude: 13.026215 * Median Longitude: 100.532361 * South-bound Latitude: 11.810000 * West-bound Longitude: 100.110000 * North-bound Latitude: 13.440000 * East-bound Longitude: 100.870000
Minimum DEPTH, sediment/rock: 0.015 m * Maximum DEPTH, sediment/rock: 0.025 m
Event(s):
GOT10-12-T002 (T002) * Latitude: 13.370000 * Longitude: 100.750000 * Location: Gulf of Thailand * Method/Device: Box corer (BC) * Comment: Sampled during one of three cruises conducted on the R/V Boon-Lerd Pa-Sook and the R/V SEAFDEC2 (SEAFDEC: Southeast Asian Fisheries Development Center) from 2010 to 2012
GOT10-12-T2 (T2) * Latitude: 12.070000 * Longitude: 100.390000 * Location: Gulf of Thailand * Method/Device: Box corer (BC) * Comment: Sampled during one of three cruises conducted on the R/V Boon-Lerd Pa-Sook and the R/V SEAFDEC2 (SEAFDEC: Southeast Asian Fisheries Development Center) from 2010 to 2012
GOT10-12-T003 (T003) * Latitude: 13.250000 * Longitude: 100.790000 * Location: Gulf of Thailand * Method/Device: Box corer (BC) * Comment: Sampled during one of three cruises conducted on the R/V Boon-Lerd Pa-Sook and the R/V SEAFDEC2 (SEAFDEC: Southeast Asian Fisheries Development Center) from 2010 to 2012
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventWei, Bingbing
2Sample code/labelSample labelWei, Bingbing
3LATITUDELatitudeWei, BingbingGeocode
4LONGITUDELongitudeWei, BingbingGeocode
5Sampling dateSampling dateWei, BingbingYear
6Reference/sourceReferenceWei, Bingbing
7Depth, bathymetricBathy depthmWei, BingbingWater depth
8DEPTH, sediment/rockDepth sedmWei, BingbingGeocode
9Depth, top/minDepth topmWei, Bingbing
10Depth, bottom/maxDepth botmWei, Bingbing
11Size fraction 2.000-0.063 mm, sand2000-63 µm%Wei, Bingbing
12Size fraction 0.063-0.002 mm, silt, mud63-2 µm%Wei, Bingbing
13Size fraction < 0.002 mm, clay<2 µm%Wei, Bingbing
14Median, grain sizeD50phiWei, Bingbing
15Size fraction < 0.063 mm, mud, silt+clay<63 µm%Wei, Bingbingfine fraction
16Carbon, organic, totalTOC%Wei, Bingbingwt.%
17Carbon, organic, total/Nitrogen, total ratioTOC/TNWei, Bingbing
18δ13C, total organic carbonδ13C TOC‰ PDBWei, Bingbing
19n-Alkanes, per unit sediment massn-Alkanes/sedµg/gWei, Bingbing
20n-Alkanes, low molecular weight, per unit sediment massLMW n-Alkanes/sedµg/gWei, Bingbing
21n-Alkanes, high molecular weight, per unit sediment massHMW n-Alkanes/sedµg/gWei, Bingbing
22Carbon, organic, marine fractionOC mar fractWei, BingbingBayesian Markov chain Monte Carlo (MCMC) modelProportion of OCmarine
23Carbon, organic, marine fraction, standard deviationOC mar fract std dev±Wei, BingbingBayesian Markov chain Monte Carlo (MCMC) model
24Carbon, organic, riverine fractionOC river fractWei, BingbingBayesian Markov chain Monte Carlo (MCMC) modelProportion of OCriver
25Carbon, organic, riverine fraction, standard deviationOC river fract std dev±Wei, BingbingBayesian Markov chain Monte Carlo (MCMC) model
26Carbon, organic, coastal fractionOC coast fractWei, BingbingBayesian Markov chain Monte Carlo (MCMC) modelProportion of OCcoastal
27Carbon, organic, coastal fraction, standard deviationOC coast fract std dev±Wei, BingbingBayesian Markov chain Monte Carlo (MCMC) model
28Carbon, organic, marineOC mar%Wei, BingbingContent of OCmarine (wt.%)
29Carbon, organic, marine, standard deviationOC mar std dev±Wei, Bingbingwt.%
30Carbon, organic, riverineOC river%Wei, BingbingContent of OCriver (wt.%)
31Carbon, organic, riverine, standard deviationOC river std dev±Wei, Bingbingwt.%
32Carbon, organic, coastalOC coast%Wei, BingbingContent of OCcoastal (wt.%)
33Carbon, organic, coastal, standard deviationOC coast std dev±Wei, Bingbingwt.%
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
712 data points

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