Tectonic Activities and Evolution of the Red River Delta (North Viet Nam) in the Holocene

Phach, P. V.; Lai, V. C.; Shakirov, R. B.; Le, Duc Anh; Tung, Dang Xuan

doi:10.1134/s0016852120010094

Cited by 9 publications

(5 citation statements)

References 14 publications

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“…Available datasets tend to be few in number, creating low spatial and temporal resolution for assessing complex processes. While the RRD is comparatively well-represented, with >20 sedimentary cores, most radiometrically dated [141], compared to, for example, c. 36 cores from the larger Mekong Delta [301], shifting distributary channels, differential influence from wave, tide, and fluvial processes, subsidence and uplift, long-shore current, and sea level fluctuations, and human activity affect morphological development [108,302]. Limited standardisation between source dataincluding differing coordinate systems, project objectives, available measuring precision, and even agreement on what should constitute a representative coastline (e.g., between mean highwater [MHW], mean sea level [MSL] and mean low-water level [MLW])-also continue to problematise reconstruction [106,303,304].…”

Section: Discussionmentioning

confidence: 99%

Prehistoric pathways to Anthropocene adaptation: Evidence from the Red River Delta, Vietnam

Rabett

Morimoto²,

Kahlert³

et al. 2023

PLoS ONE

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Over the past twenty years, government advisory bodies have placed increasing emphasis on the need for adaptive measures in response to the effects of human-induced climate change. Integrated Assessment Models (IAMs), which incorporate macroeconomic and climate variables, feature prominently in advisory content, though they rarely draw on data from outside strictly constrained hypothetical systems. This has led to assertions that they are not well-suited to approximate complex systemic human-environment processes. Modular, interdisciplinary approaches have offered a way to address this shortcoming; however, beyond climate records, prehistoric data continue to be under-utilised in developing such models. In this paper we highlight the contribution that archaeology and palaeoecology can make to the development of the next generation IAMs that are expected to enhance provision for more local and pro-active adaptations to future climate change. We present data from one of Southeast Asia’s most heavily developed river deltas: the Red River (Song Hong) Delta, in Vietnam and localised analysis from the Tràng An Landscape Complex World Heritage Site, on the delta’s southern margin. Comparison is made between Shared Socio-economic Pathways (SSP) 5–8.5 and SSP2–4.5 emission projection models and the Mid-Holocene inundation of the Red River Basin. We highlight the value to taking a scientific long view of coastal evolution through an illustrative set of eight research foci where palaeo-data can bring new and localised empirical data to bear on future risk management planning. We proceed to demonstrate the applicability of palaeoenvironmental, zooarchaeological and historical evidence to management and the development of sustainable conservation strategies using Tràng An as a case study. In so doing, we further highlight the importance of knowledge exchange between scientific, corporate, non-governmental, local, and state stakeholders to achieve tangible results on the ground.

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Section: Discussionmentioning

confidence: 99%

Prehistoric pathways to Anthropocene adaptation: Evidence from the Red River Delta, Vietnam

Rabett

Morimoto²,

Kahlert³

et al. 2023

PLoS ONE

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“…На территории Северного Вьетнама система представлена серией субпараллельных разломов, прослеженных на расстояние около 200 км при ширине 20-50 км от границы с Китаем вдоль долины реки Красной вплоть до ее устья. Юго-восточнее г. Вьетчи разломы перекрыты плиоцен-четвертичными осадочными отложениями дельты р. Красной, которые фиксируют северо-западное клиновидное окончание кайнозойского осадочного бассейна Красной Реки [77]. Далее на юго-восток, уже в акватории Южно-Китайского моря, бассейн, имеющий линзовидную форму, прослеживается между о. Хайнань и побережьем Вьетнама на расстояние около 800 км при ширине до 160 км.…”

Section: бассейны южно-китайского моряunclassified

“…Последнее неогласие фиксирует, по-видимому, локальную инверсию, связанную со сменой знака перемещений (переходом от левосторонних к правосторонним) вдоль материнских сдвигов [45]. Далее вплоть до настоящего времени происходило накопление завершающей порции слабо деформированных терригенных отложений мощностью до 2000 м [76,77].…”

Section: бассейны южно-китайского моряunclassified

Rifting in Marginal Seas of the Wstern Pacific

V. V.,

P.V.,

L. D.

2024

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The paper presents a review of structural features of rifting during the formation of Cenozoic basins of marginal seas of the Western Pacific. The assumption that rifting always starts with a passive stage and is only occasionally interrupted by episodes of active rifting is fully confirmed by examples from the studied basins. Rifting occurred under a compressive regime with NE and NNE-directed shortening that resulted in the formation of either a chain of pull-apart basins or rifts scattered between major strike-slip faults in the great part of the South China Sea. The NE and NNE directions of horizontal compressive force are apparently related to the convective currents in the asthenospheric mantle that have extended from the spreading ridge of the Indian Ocean and have carried plate fragments deformed to some extent during their transportation. The north-northeastward drift of the Indian, Australian, and Eurasian plates associated with these mantle currents does not reveal any connection with subduction from adjacent Paleo-Pacific plates, which continue to move in the NW direction up to the present time. Thus, formation of the marginal basins of the Western Pacific were unaffected by subduction from the Pacific Ocean side and they can be regarded as back-arc basins only due to their geographical locations.

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“…The delta has a triangle shape with its height of about 150 km long from its apex (Viet Tri City at the Northwest) to the Southeast coastline, which is around 146 km from Quang Yen town to Day River mouth. Topographically, the RRD can be divided into three main zones, namely, upper delta, middle delta, and lower delta [7]. The upper delta lies at about 10−15 m above the mean sea level (MSL) and has slightly eroded paleo-terraces at the north side.…”

Section: Geological Overview Of the Rrdmentioning

confidence: 99%

Compressibility characteristics of clays in the Red River Delta

Dũng

Khin

2023

STCE

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The Red River Delta (RRD) is the second largest delta in Vietnam and is a significant economic zone in the country, encompassing important cities and economic zones. Geologically, the delta consists of clay layers distributed all over its area, which strongly impact the foundation designs of the infrastructure system (e.g., highways, industrial parks, harbors). However, up to date, there were no comprehensive studies on the compressibility characteristics of the clays in the delta. This study presents a primary study on some compressibility characteristics of clays in the whole delta with an emphasis on the use of CPTu data in the interpretation. For this, high-quality field and laboratory test results obtained from four research test sites and eight project sites were analyzed to depict the characteristics. The results indicate that the clays in the delta are typically soft to medium stiff and normally consolidated to slightly overconsolidated, which represent typical characteristics of young Holocene deposits. The compression index (Cc) of the clays was found to have good correlations with natural water content (Wn) or in-situ void ratio (e0). The ratio of radial coefficient of consolidation from a consolidation test with a central drain (CD) to the vertical coefficient of consolidation from the standard consolidation test (i.e., cr,CD/cv) from the 4 research test sites is on average 2.76 (log t method) and 2.32 (root t method) and these average ratios are found typical for deltaic soil deposits. The correlations for the remolded samples indicate that the drainage type has a strong influence to the induced coefficients of homogeneously remolded soils. Results from this study help geotechnical engineers have a general view on the compressibility characteristics of the clays in the delta, which in turn helps secure optimal foundation design solutions.

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Tectonic Activities and Evolution of the Red River Delta (North Viet Nam) in the Holocene

Cited by 9 publications

References 14 publications

Prehistoric pathways to Anthropocene adaptation: Evidence from the Red River Delta, Vietnam

Prehistoric pathways to Anthropocene adaptation: Evidence from the Red River Delta, Vietnam

Rifting in Marginal Seas of the Wstern Pacific

Compressibility characteristics of clays in the Red River Delta

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