Response of sediment grain size to sea-level rise during the middle Holocene on the west coast of the Gulf of Thailand

Jirapinyakul, Akkaneewut; Sompongchaiyakul, Penjai; Zhao, Shaohua; Rattanakom, Rawee

doi:10.1007/s12517-022-09450-3

Cited by 3 publications

(2 citation statements)

References 61 publications

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“…The Holocene sea level fluctuations in Southeast Asia have been primarily attributed to hydro–isostasy, which is the adjustment of the Earth’s crust to changes in the volume of ice sheets and glaciers (Horton et al, 2005). However, the spatial variability of the magnitude of sea level fluctuations varies depending on the geographical location within the region (Chabangborn et al, 2020; Choowong et al, 2009; Jiwarungrueangkul et al, 2022; Oliver and Terry, 2019; Sainakum et al, 2021). For the Late-Holocene, the global sea level has been reported to decrease gradually, as simulated by the ICE–6E_C Glacial Isostatic Adjustment (GIA) model (Peltier et al, 2015), or show no evidence of fluctuation (Lambeck et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…These discrepancies could be attributed to the lack of understanding of the competing factors influencing the RSL changes in the region, resulting in the differences in the timing and magnitude of RSL fluctuations reported (e.g. Chabangborn et al, 2020; Choowong et al, 2009; Jiwarungrueangkul et al, 2022; Oliver and Terry, 2019; Sainakum et al, 2021; Surakiatchai et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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ENSO may have contributed to sea level changes in the Gulf of Thailand during the Late-Holocene

Jirapinyakul,

Nudnara,

Punwong

et al. 2023

The Holocene

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The Gulf of Thailand is ideal for studying eustatic sea level fluctuations in Southeast Asia due to its shallow basin and tectonic stability. However, our understanding of how this region’s relative sea level (RSL) has fluctuated over the Holocene epoch is far from complete. In this study, we used lithostratigraphy, loss on ignition, grain size, and pollen analyses to reconstruct the environmental changes in the Sam Roi Yot wetland, which was significantly influenced by seawater intrusion, driven by fluctuations in RSL in the Gulf of Thailand. Therefore, the analyzed pollen records of the sediment core from the wetland reflected variabilities in the RSL in the Gulf of Thailand. Subsequently, we found that after a sea level highstand prior to 4000 cal y BP, the RSL gradually fell with two significant regressions at c. 2950 and 1850–1450 cal y BP before rising at 1450–1050 cal y BP and declining after that. The inconsistency between RSL reconstruction based on our results and the global sea level changes simulated by the Glacial Isostatic Adjustment (GIA) model further suggests that long–term El Niño Southern Oscillations (ENSO) variabilities may have played a significant role in sea level changes in the Gulf of Thailand over the Late-Holocene period. Thus, during extended El Niño or La Niña conditions, the sea level would have been consistently lower or higher than expected from eustatic and isostatic processes alone. Overall, this study emphasizes the importance of considering regional factors such as ENSO to understand sea level changes in Southeast Asia.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

ENSO may have contributed to sea level changes in the Gulf of Thailand during the Late-Holocene

Jirapinyakul,

Nudnara,

Punwong

et al. 2023

The Holocene

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Equilibrium partitioning approach for metal toxicity assessment in tropical estuarine sediment of Bandon Bay, Thailand

Jiwarungrueangkul,

Sompongchaiyakul,

Tipmanee

et al. 2024

Marine Pollution Bulletin

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Composition and vertical distribution of organic matter in Central Indian Ocean sediment cores

Thalayappil,

Mullungal,

Peediyakkathodi

et al. 2024

Sci Rep

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This study aimed to investigate the quality and quantity of organic matter (OM) using biochemical components (protein, carbohydrate and lipids) in the sediment cores collected from the Central Indian Ocean (CIOB) under the program Equatorial Indian Ocean Process Study Dynamics and Biogeochemistry (EIOPS). Total organic carbon (TOC) and biochemical parameters (carbohydrate, lipid, protein, Tannin and lignin) were determined in core I and core II, respectively. Total carbohydrates varied from 4.66 to 2557.32 mg/kg (average 459.31 mg/kg) and 142.23 to 821.56 mg/kg (average 380.01 mg/kg) in core I and II, respectively. In core I, PRT varied from 70.95 to 107.05 mg/kg, and the minimum and maximum content of CHO was 143.23 and 822.56 mg/kg. The maximum and minimum concentrations of BPC in core II were 786.32 and 381.07 at 0–10 cm depth, respectively, which corresponded to the concentrations of PRT, CHO, LPD, and Tannin. The results showed that PRT was statistically significant with the TOC and negatively correlated with the LPD and CHO, while LPD was highly significant with clay and silt grains. In most of the samples, the ratio of LPD to CHO ratio was > 1, which indicated higher productivity of benthic organisms inhabiting the CIOB.

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Response of sediment grain size to sea-level rise during the middle Holocene on the west coast of the Gulf of Thailand

Cited by 3 publications

References 61 publications

ENSO may have contributed to sea level changes in the Gulf of Thailand during the Late-Holocene

ENSO may have contributed to sea level changes in the Gulf of Thailand during the Late-Holocene

Equilibrium partitioning approach for metal toxicity assessment in tropical estuarine sediment of Bandon Bay, Thailand

Composition and vertical distribution of organic matter in Central Indian Ocean sediment cores

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