Luminescence dating of beach ridges for characterizing multi-decadal to centennial deltaic shoreline changes during Late Holocene, Mekong River delta

Tamura, Takeshi; Saito, Yoshiki; Bateman, Mark D.; Nguyen, Van Lap; Ta, Thi Kim Oanh; Matsumoto, Dan

doi:10.1016/j.margeo.2012.08.004

Cited by 59 publications

(28 citation statements)

References 57 publications

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“…Trong khu vực đồng bằng, bằng các phương pháp phân tích trầm tích, cổ sinh, tuổi tuyệt đối,... Nguyễn Văn Lập, Tạ Thị Kim Oanh, Tanabe, Tateishi, Kobayashi, Saito (2000, 2012 đã phác họa lịch sử phát triển địa chất của đồng bằng Nam Bộ trong Holocen qua nghiên cứu, phân tích các lỗ khoan, các mặt cắt địa chất, cũng như tổng hợp các kết quả phân tích tuổi C 14 , tuổi OSL [1][2][3][4]. Đinh Văn Thuận (2005) đã tổng hợp những tư liệu về cổ sinh, đặc biệt đã xây dựng được những phức hệ sinh thái bào tử phấn hoa, cho phép tái thiết lập môi trường tích tụ trầm tích trong Holocen [5].…”

Section: Mở đầUunclassified

Late Pleistocene - Holocene Sedimentary Evolution of Nam Bo Plain and Correlation from the Ca Mau Peninsula to the Mekong River Delta in Midle-Late Holocene

Trang¹,

Nghi²,

Thành³

et al. 2019

EES

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Located in southern Vietnam, the Southern plain is one of the largest in Asia. Within the coastal area, this study has indicated that there are two plains forming by different hydrodynamic mechanisms: the river dominated Mekong Delta plain and the tidal dominated plain of the Ca Mau peninsula. Studying lithofacies based on: (i) sedimentary parameters indicating environment of 29 boreholes in tidal flat and coastal plains, hundreds of surveyed surface sediment stations; (ii) stratigraphy seismic characteristics of the 21 seismic sections; and (iii) absolute age data, evolutionary history of late Pleistocene - Holocene sediments in the Southern plain and the relationship between the Mekong Delta and the tidal plain of the Ca Mau peninsula in the middle Holocene - late be clarified. Both plains are characterized by 3 lithofacies complexes corresponding to 3 phases of sea-level change: (i) lowstand alluvial facies complex (arLST Q13b); (ii) coastal facies complex (amtTST Q21-2) and shallow marine-lagoon greenish-gray clay facies (mtTST Q21-2); (iii) the phase of the middle-late Holocene (Q22-3 HST) has a differentiation between the two plains. The Me Kong delta is characterized by three deltaic facies complexes: (1) the late middle-late Holocene buried submarine deltaic facies complex (amh1Q22-3); (2) late Holocene deltaic plain facies complex (amh2Q23) and modern submarine deltaic facies complex (amh3Q23). The tidal plain of Ca Mau peninsula is characterized by a complex of sandy bars, tidal plains and tidal channels. In the regressive process, four periods of relative sea-level stopped, creating three ancient shoreline (5ka BP, 2.5ka BP; and 1 ka BP). The delta plain is marked by deltaic lobes turning to the southeast sea, while the Ca Mau plain characterized by the sand bars that tend to change direction from the east (2.5 ka BP) to the southeast (0.5ka BP and 0.2ka BP).

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Section: Mở đầUunclassified

Late Pleistocene - Holocene Sedimentary Evolution of Nam Bo Plain and Correlation from the Ca Mau Peninsula to the Mekong River Delta in Midle-Late Holocene

Trang¹,

Nghi²,

Thành³

et al. 2019

EES

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show abstract

“…Schmitt et al, in press); sea level change (Wassman et al, 2004;Smajgl et al, 2015; T.T.X. Nguyen and Woodroffe, 2016); shoreline change (Thu and Populus, 2007;Tamura et al, 2010Tamura et al, , 2012aK. Schmitt et al, 2013;Albers and Schmitt, 2015;Anthony et al, 2015;Phan et al, 2015;Besset et al, 2016); ocean processes (Schimanski and Stattegger, 2005;Tjallingii et al, 2010;Xue et al, 2010Xue et al, , 2012Szczucinski et al, 2013;Unverricht et al, 2013Unverricht et al, , 2014Loisel et al, 2014;Vinh et al, 2016); and delta evolution (V.L.…”

Section: Mekong Tropical Delta Studymentioning

confidence: 99%

“…Studies of these strata within the Mekong Delta (e.g., V.L. Nguyen et al, 2000;Ta et al, 2002;Hanebuth et al, 2012;Tamura et al, 2012aTamura et al, , 2012b demonstrate that regression intensified ~5,000 years ago and that the control of sedimentation changed ~3,000 years ago from tidal processes alone to mixed tides and surface waves. The ancient rate of sediment discharge by the Mekong River is difficult to evaluate, but estimates made before dam construction indicated a discharge of ~160 Mt yr -1 (Milliman and Meade, 1983).…”

Section: The Mekong Delta During the Past 8000 Yearsmentioning

confidence: 99%

Introduction to the Special Issue on Sedimentary Processes Building a Tropical Delta Yesterday, Today, and Tomorrow: The Mekong System

Nittrouer¹,

Mullarney²,

Ogston³

2017

Oceanog.

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“…Because beach-ridge deposits generally lack material suitable for radiocarbon dating (e.g., Isla and Bujalesky, 2000), luminescence dating of sand grains has been used as an alternative method for dating them (e.g., MurrayWallace et al, 2002;Nielsen et al, 2006;Reimann et al, 2011a;Tamura et al, 2012;Brill et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Luminescence dating of Holocene beach-ridge sands on the Yumigahama Peninsula, western Japan

et al. 2017

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We applied infrared stimulated luminescence (IRSL 50 ) and post-infrared (post-IR) IRSL 150 dating to K-feldspar sand obtained from Holocene beach ridges on the Yumigahama Peninsula, Japan, to investigate the rate of progradation of the beach, which has been affected by [17][18] th century iron mining in a local river catchment. All samples showed higher equivalent doses for the post-IR IRSL signal. Fading tests indicated that IRSL yielded relatively high g-values (11-13%/decade), while post-IR IRSL yielded negative g-values (-5 to -8%/decade). The corrected IRSL age of the oldest sample, 8.1 ± 1.3 ka, was slightly overestimated with respect to its expected age of 5-6.7 ka. The corrected age is highly dependent on the g-value, which if slightly inaccurate would have caused the overestimate. The uncorrected post-IR IRSL ages were underestimated, and we consider that the post-IR IRSL signal faded. However, given the negative g-values, application of an appropriate fading correction was not feasible. The corrected IRSL ages of the younger samples, coupled with an assumption of residual dose, roughly agreed with the historical shoreline changes, indicating that the rate of shoreline progradation increased markedly during the recent period of mining-related enhanced sediment discharge.

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Luminescence dating of beach ridges for characterizing multi-decadal to centennial deltaic shoreline changes during Late Holocene, Mekong River delta

Cited by 59 publications

References 57 publications

Late Pleistocene - Holocene Sedimentary Evolution of Nam Bo Plain and Correlation from the Ca Mau Peninsula to the Mekong River Delta in Midle-Late Holocene

Late Pleistocene - Holocene Sedimentary Evolution of Nam Bo Plain and Correlation from the Ca Mau Peninsula to the Mekong River Delta in Midle-Late Holocene

Introduction to the Special Issue on Sedimentary Processes Building a Tropical Delta Yesterday, Today, and Tomorrow: The Mekong System

Luminescence dating of Holocene beach-ridge sands on the Yumigahama Peninsula, western Japan

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