Citation:

PANGAEA.981135

Name: Geochemical properties of surface sediments in the inner Gulf of Thailand
Creator: Bingbing Wei
Published: 2025-04-17
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Chao Phraya River; fluvial sediment transport; Gulf of Thailand; Sediment accumulation rates

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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):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Wei, Bingbing
2	Sample code/label	Sample label		Wei, Bingbing
3	LATITUDE	Latitude		Wei, Bingbing		Geocode
4	LONGITUDE	Longitude		Wei, Bingbing		Geocode
5	Sampling date	Sampling date		Wei, Bingbing		Year
6	Reference/source	Reference		Wei, Bingbing
7	Depth, bathymetric	Bathy depth	m	Wei, Bingbing		Water depth
8	DEPTH, sediment/rock	Depth sed	m	Wei, Bingbing		Geocode
9	Depth, top/min	Depth top	m	Wei, Bingbing
10	Depth, bottom/max	Depth bot	m	Wei, Bingbing
11	Size fraction 2.000-0.063 mm, sand	2000-63 µm	%	Wei, Bingbing
12	Size fraction 0.063-0.002 mm, silt, mud	63-2 µm	%	Wei, Bingbing
13	Size fraction < 0.002 mm, clay	<2 µm	%	Wei, Bingbing
14	Median, grain size	D50	phi	Wei, Bingbing
15	Size fraction < 0.063 mm, mud, silt+clay	<63 µm	%	Wei, Bingbing		fine fraction
16	Carbon, organic, total	TOC	%	Wei, Bingbing		wt.%
17	Carbon, organic, total/Nitrogen, total ratio	TOC/TN		Wei, Bingbing
18	δ13C, total organic carbon	δ13C TOC	‰ PDB	Wei, Bingbing
19	n-Alkanes, per unit sediment mass	n-Alkanes/sed	µg/g	Wei, Bingbing
20	n-Alkanes, low molecular weight, per unit sediment mass	LMW n-Alkanes/sed	µg/g	Wei, Bingbing
21	n-Alkanes, high molecular weight, per unit sediment mass	HMW n-Alkanes/sed	µg/g	Wei, Bingbing
22	Carbon, organic, marine fraction	OC mar fract		Wei, Bingbing	Bayesian Markov chain Monte Carlo (MCMC) model	Proportion of OCmarine
23	Carbon, organic, marine fraction, standard deviation	OC mar fract std dev	±	Wei, Bingbing	Bayesian Markov chain Monte Carlo (MCMC) model
24	Carbon, organic, riverine fraction	OC river fract		Wei, Bingbing	Bayesian Markov chain Monte Carlo (MCMC) model	Proportion of OCriver
25	Carbon, organic, riverine fraction, standard deviation	OC river fract std dev	±	Wei, Bingbing	Bayesian Markov chain Monte Carlo (MCMC) model
26	Carbon, organic, coastal fraction	OC coast fract		Wei, Bingbing	Bayesian Markov chain Monte Carlo (MCMC) model	Proportion of OCcoastal
27	Carbon, organic, coastal fraction, standard deviation	OC coast fract std dev	±	Wei, Bingbing	Bayesian Markov chain Monte Carlo (MCMC) model
28	Carbon, organic, marine	OC mar	%	Wei, Bingbing		Content of OCmarine (wt.%)
29	Carbon, organic, marine, standard deviation	OC mar std dev	±	Wei, Bingbing		wt.%
30	Carbon, organic, riverine	OC river	%	Wei, Bingbing		Content of OCriver (wt.%)
31	Carbon, organic, riverine, standard deviation	OC river std dev	±	Wei, Bingbing		wt.%
32	Carbon, organic, coastal	OC coast	%	Wei, Bingbing		Content of OCcoastal (wt.%)
33	Carbon, organic, coastal, standard deviation	OC coast std dev	±	Wei, Bingbing		wt.%

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

712 data points

Data

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

1 Event	2 Sample label	3 Latitude	4 Longitude	5 Sampling date	6 Reference	7 Bathy depth [m]	8 Depth sed [m]	10 Depth bot [m]	11 2000-63 µm [%]	12 63-2 µm [%]	13 <2 µm [%]	14 D50 [phi]	15 <63 µm [%]	16 TOC [%]	17 TOC/TN	18 δ13C TOC [‰ PDB]	19 n-Alkanes/sed [µg/g]	20 LMW n-Alkanes/sed [µg/g]	21 HMW n-Alkanes/sed [µg/g]	22 OC mar fract	23 OC mar fract std dev [±]	24 OC river fract	25 OC river fract std dev [±]	26 OC coast fract	27 OC coast fract std dev [±]	28 OC mar [%]	29 OC mar std dev [±]	30 OC river [%]	31 OC river std dev [±]	32 OC coast [%]	33 OC coast std dev [±]
GOT18-1	GOT18-1	13.1512	100.3014	2018	Lin et al., 2023	17.0	0.025	0.05				4.2		0.56		-21.56				0.83	0.08	0.11	0.08	0.06	0.05	0.47	0.04	0.06	0.04	0.03	0.03
GOT18-2	GOT18-2	13.1556	100.6832	2018	Lin et al., 2023	19.0	0.025	0.05				3.8		0.58		-21.31				0.84	0.07	0.10	0.07	0.06	0.05	0.49	0.04	0.06	0.04	0.03	0.03
GOT11-UG31	UG31	12.6383	100.8333	2011	Lin et al., 2023	19.0	0.025	0.05				3.3		0.35		-20.60				0.86	0.07	0.08	0.06	0.05	0.04	0.31	0.02	0.03	0.02	0.02	0.02
GOT10-12-T005	T005	13.4400	100.6400	2010-2012	Bai et al., 2021	4.8	0.015	0.03	1	80	19	6.7	99	1.17	11.12	-24.20	2.62	0.29	2.32	0.36	0.09	0.39	0.18	0.25	0.14	0.42	0.10	0.46	0.21	0.29	0.16
GOT10-12-T002	T002	13.3700	100.7500	2010-2012	Bai et al., 2021	9.8	0.015	0.03	0	78	22	7.0	100	2.30	9.99	-21.85	3.79	0.46	3.25	0.65	0.09	0.17	0.12	0.18	0.10	1.49	0.20	0.39	0.27	0.43	0.24
GOT10-12-T018	T018	13.4000	100.4700	2010-2012	Bai et al., 2021	8.2	0.015	0.03	5	73	22	6.8	95	1.38	7.58	-21.64	2.37	0.64	1.66	0.77	0.09	0.14	0.10	0.09	0.07	1.06	0.12	0.20	0.13	0.12	0.09
GOT10-12-T011	T011	13.4200	100.5900	2010-2012	Bai et al., 2021	6.7	0.015	0.03	1	77	22	7.0	99	1.15	10.65		2.98	0.14	2.81
GOT10-12-T006	T006	13.3100	100.6600	2010-2012	Bai et al., 2021	11.8	0.015	0.03	0	77	23	7.1	100	1.53	9.90		2.12	0.22	1.87
GOT10-12-T003	T003	13.2500	100.7900	2010-2012	Bai et al., 2021	13.1	0.015	0.03	4	81	15	6.6	96	2.47	10.93		1.29	0.28	0.97
GOT10-12-T012	T012	13.3500	100.5700	2010-2012	Bai et al., 2021	9.8	0.015	0.03	3	79	18	6.7	98	1.47	7.51		2.97	0.18	2.77
GOT10-12-T019	T019	13.3400	100.4300	2010-2012	Bai et al., 2021	10.2	0.015	0.03	8	73	19	6.5	92	1.14	7.32		5.29	0.46	4.78
GOT10-12-T007	T007	13.1000	100.6700	2010-2012	Bai et al., 2021	16.5	0.015	0.03	17	68	16	6.2	83	1.20	10.72	-21.44	1.02	0.25	0.73	0.65	0.09	0.13	0.10	0.22	0.10	0.78	0.10	0.16	0.12	0.26	0.12
GOT10-12-T026	T026	13.4200	100.3200	2010-2012	Bai et al., 2021	6.0	0.015	0.03	5	78	17	6.6	95	1.74	6.86	-21.33	1.88	0.33	1.50	0.82	0.08	0.11	0.08	0.07	0.05	1.42	0.14	0.20	0.14	0.12	0.10
GOT10-12-T027	T027	13.4200	100.2600	2010-2012	Bai et al., 2021	8.1	0.015	0.03	8	77	15	6.4	92	0.65	5.26	-21.00	1.06	0.26	0.79	0.88	0.06	0.07	0.06	0.04	0.04	0.57	0.04	0.05	0.04	0.03	0.02
GOT10-12-T004	T004	13.2700	100.8400	2010-2012	Bai et al., 2021	12.2	0.015	0.03	2	85	14	6.6	98	2.89	11.27	-21.18	2.95	0.44	2.47	0.66	0.08	0.11	0.09	0.24	0.10	1.89	0.24	0.31	0.26	0.69	0.29
GOT10-12-T013	T013	13.2200	100.5400	2010-2012	Bai et al., 2021	13.5	0.015	0.03	18	71	10	5.9	82	1.21	7.26	-21.24	2.34	0.24	2.07	0.81	0.08	0.12	0.09	0.08	0.06	0.97	0.10	0.14	0.10	0.09	0.07
GOT10-12-T008	T008	12.5800	100.6900	2010-2012	Bai et al., 2021	20.0	0.015	0.03	32	62	7	5.2	69	1.09	13.00		0.53	0.20	0.31
GOT10-12-T028	T028	13.3200	100.1900	2010-2012	Bai et al., 2021	11.1	0.015	0.03	38	55	7	5.0	62	0.82	7.41		0.84	0.33	0.48
GOT10-12-T030	T030	13.3700	100.8700	2010-2012	Bai et al., 2021	9.5	0.015	0.03	3	87	11	6.4	97	2.93	8.08		3.15	0.86	2.25
GOT10-12-T033	T033	13.3000	100.8300	2010-2012	Bai et al., 2021	11.9	0.015	0.03	5	85	10	6.2	95	2.36	7.91	-21.01	19.10	0.56	18.50	0.79	0.08	0.12	0.09	0.09	0.06	1.86	0.20	0.29	0.21	0.21	0.15
GOT10-12-T009	T009	12.6200	100.7200	2010-2012	Bai et al., 2021	18.9	0.015	0.03	44	50	6	4.8	56	0.61	9.23		0.39	0.14	0.24
GOT10-12-T020	T020	13.2600	100.4000	2010-2012	Bai et al., 2021	12.2	0.015	0.03	11	75	15	6.3	89	0.98	8.28		0.63	0.22	0.37
GOT10-12-T021	T021	13.1900	100.3600	2010-2012	Bai et al., 2021	14.7	0.015	0.03	12	75	13	6.2	88	1.22	7.60	-21.32	0.71	0.31	0.35	0.79	0.09	0.13	0.09	0.08	0.06	0.96	0.10	0.16	0.11	0.10	0.08
GOT10-12-T029	T029	13.2200	100.1400	2010-2012	Bai et al., 2021	13.3	0.015	0.03	21	70	10	5.6	79	1.05	6.35	-20.77	0.46	0.18	0.24	0.85	0.07	0.09	0.07	0.06	0.05	0.90	0.07	0.09	0.07	0.06	0.05
GOT10-12-T015	T015	13.1200	100.4900	2010-2012	Bai et al., 2021	15.4	0.015	0.03	34	59	7	5.3	66	0.60	6.46		0.51	0.23	0.24
GOT10-12-T022	T022	12.8700	100.3200	2010-2012	Bai et al., 2021	18.1	0.015	0.03	37	54	9	5.0	63	0.83	10.75		0.47	0.22	0.19
GOT10-12-T016	T016	13.0700	100.4700	2010-2012	Bai et al., 2021	16.9	0.015	0.03	32	62	6	5.2	68	0.68	6.71		0.64	0.22	0.39
GOT10-12-T031	T031	11.8100	100.7600	2010-2012	Bai et al., 2021	27.5	0.015	0.03	42	51	7	4.8	58	0.80	9.76		0.70	0.32	0.35
GOT10-12-T023	T023	12.3500	100.4400	2010-2012	Bai et al., 2021	20.1	0.015	0.03	36	58	6	5.0	64	0.72	8.90	-21.42	0.48	0.21	0.26	0.72	0.09	0.15	0.10	0.12	0.08	0.52	0.06	0.11	0.07	0.09	0.06
GOT10-12-T3	T3	12.3500	100.6600	2010-2012	Bai et al., 2021	22.5	0.015	0.03	82	15	3	2.7	18	0.23	5.55		0.97	0.13	0.82
GOT10-12-T2	T2	12.0700	100.3900	2010-2012	Bai et al., 2021	24.0	0.015	0.03	40	51	9	5.0	60	0.63	6.23	-21.53	1.14	0.20	0.92	0.84	0.08	0.10	0.08	0.06	0.05	0.53	0.05	0.06	0.05	0.04	0.03
GOT10-12-T6	T6	12.0800	100.3800	2010-2012	Bai et al., 2021	23.0	0.015	0.03	57	36	7	4.3	43	0.45	6.22		0.31	0.15	0.14
GOT10-12-T5	T5	13.0300	100.1100	2010-2012	Bai et al., 2021	17.0	0.015	0.03	52	41	7	4.4	48	0.35	7.09		0.28	0.12	0.14