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Sedimentary facies
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The Ba Lat estuary is part of the downstream stretch of the Red River Delta, the second-largest Delta in Vietnam and the 12th largest in the world. This study analyses GAT borehole sediments in the Ba Lat estuary area to assess environmental changes during the Late Pleistocene - Holocene period.
16p
viisac
15-09-2023
7
3
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Northern Song Hong Tertiary Sedimentary basin is a classic case study of a pull-apart basin in southeast Asia, whose formation was controlled by the India-Eurasia collision, sinistral and dextral strike-slip motion of the Ailao Shan-Red River Shear Zone and Opening of the East Vietnam Sea during the Cenozoic. Unlike the central and southern parts of the basin, the northern Song Hong Basin experienced a very strong inversion during the Late Miocene.
12p
vilucius
03-03-2023
6
3
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Knowledge of the Late Paleozoic sedimentary history of the northern Gondwana shelf is advanced by new data from the Şort Dere section (Hakkari Basin). Early Carboniferous myalinid bivalves from the Middle East are reported here for the first time. The pre-Permian basement of the Hakkari Basin consists of a Lower Carboniferous sedimentary sequence including the Köprülü and Belek formations. The Köprülü Formation has yielded rich assemblages of vertebrates and invertebrates. Hitherto myalinid bivalves were unknown from this formation.
9p
tanmocphong
29-01-2022
8
1
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This study describes the sedimentary facies and depositional architectures of Gilbert-type and shoal-water delta deposits developed on opposed margins of the extensional fluvio-lacustrine Yalvaç Basin during the late Cenozoic. The roles of syndepositional tectonism, basin dynamics, and hinterland morphology on the development of different delta types are assessed. This asymmetric trough initially opened as an intramontane molasse basin to the southwest of the Sultandağları massif.
20p
tanmocphong
29-01-2022
23
2
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A compilation of depositional facies and 14C ages from the two new cores (DT2, and DT4 cores) considerably contribute to clarify the Holocene evolution of the paleo Mekong River (MR) incised valley, Mekong River Delta (MRD). The longitudial section documents the geometric features indicating the different gradients along the paleo-Mekong incised valley from the Cambodian lowerlands through delta plain up to the shallow offshore of the MRD.
4p
viwendy2711
05-10-2021
10
1
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The paleo-geographical reconstructions are obtained from the interpolated MRD sea-level curve, depositional facies and Pleistocene surface topography of the former and new cores in the MRD and surrouding shallow offshore. The paleo-geography of the MRD is distinguished by four stages corresponding to sea-levels of -32m/10 ka, -4m/8.0ka, +1.6m/6.0ka and +1m/4.0 ka.
4p
viwendy2711
05-10-2021
15
1
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The Ma river delta located in the North Central of VietNam is the third largest ones in Vietnam following the Mekong Delta and the Red River Delta. However, there are not many researches on sedimentary. This study aims to determine the Characteristics of the Holocene sedimentary facies in coastal plain of the Song Ma Delta based on observation of sedimentary structure and analysis of grain size, diatom, flora, pollen and 14C dating collected for the drill core (LKTH2 borehole) from the coastal plain of the Song Ma river delta.
11p
nguyentanloc09
17-10-2020
10
0
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Sedimentary properties of the middle−upper eocene formations in Çardak, Burdur and İncesu, SW Turkey
The integration of sedimentological, palynological and palaeontological data in three diff erent outcrops in SW Turkey provides a clearer understanding of the palaeoenvironments in an area between the Çardak-Dazkırı Basin and the Isparta region during the Middle–Late Eocene. In this study, the Çardak-Dazkırı (Başçeşme Formation), Burdur (Varsakyayla Formation) and Isparta (Kayıköy Formation) areas have been studied for facies and facies associations.
39p
vidonut2711
09-11-2019
11
1
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Ion probe dating is used to determine the relative ages of amphibolite-facies meta-clastic sedimentary rocks and crosscutting granitoid rocks within an important ‘basement’ outcrop in northwestern Turkey. U-Pb ages of 89 detrital zircon grains separated from sillimanite-garnet micaschist from the Central Sakarya basement terrane range from 551 Ma (Ediacaran) to 2738 Ma (Neoarchean).
28p
vidonut2711
09-11-2019
8
1
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This study describes the subsurface sedimentary facies of a modern Red Sea coastal plain at the mouth of Wadi Al-Hamd, northern Saudi Arabia, in an attempt to infer the influence of aridity and limited tidal range on facies characteristics. The study provides criteria to delineate the fluviomarine transition in a setting where tidal signatures and other marine influences are weak.
18p
viminotaur2711
30-10-2019
15
0
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The Aksu Basin in southern Turkey is dominantly represented by an alluvial fan and five fan deltas (FDs) developed along the tectonically controlled margins of the basin during the Miocene. Four alternating compressional and tensional tectonic phases have influenced the basin since its formation. Strong tectonic movements caused high sedimentation rates and progradation of large debrisflow and mass-flow dominated FDs.
17p
viminotaur2711
30-10-2019
11
1
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The results of palaeontological (palynological and mollusc) and sedimentological analyses of the lower Miocene deposits from the Bingöl minibasin, a part of the Sivas Basin, are exhibited to define the vertical shifts in sedimentation environments and plant covers, linking to eustasy.
20p
viminotaur2711
30-10-2019
17
1
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The aim of the study was to know a trend of mechanical behavior and geotechnical properties; applied for, calculating the mechanical behavior of the ground, planning the infrastructure, specially the traffic system and port, and building a rational investigated-procedure by combinations of in-situ tests, sampling and laboratory tests.
9p
queencongchua3
17-09-2019
12
0
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Arsenic (As) contamination in groundwater has been recognized in the Mekong River Delta (MRD) since 2001, especially in Dong Thap and An Giang provinces. The investigations were carried out during 2008-2009 and from 2012 to present. The investigations of As distribution in groundwater and sediments were based upon the field, and laboratory analyses using field kit (Hironaka, 1998) and AOAC laboratory - Vietnamese standard 6626-2000 (Vilas).
10p
meolep4
02-01-2019
24
1
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The aim of the study was to reconstruct sedimentary environments of the MR1 core and investigate geotechnical properties of sedimentary facies through the piezocone penetration test (CPTU). A core at the Vinhlong province, Mekong River Delta (MRD), sufficiently presented the Holocene facies of the area. Eight facies were identified based upon sedimentary properties. Characteristics of the units showed
13p
dem_thanh
22-12-2012
43
7
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There are five Quaternary sedimentary sequences in the Red River Delta, Vietnam. The forming of each sequence is related to transgression and regression phases. The sequences, which was formed in transgression period, composed mainly of fine grained size leading to the water bearing capacity is very low and plays a role as aquicludes. Besides, in these fine grain size layers, the contents of arsenic and iron are high, especially in dark clay, silty clay rich in organic material ...
7p
dem_thanh
22-12-2012
42
3
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