scholarly journals Hydrogeologic features of the alluvial deposits in the Greybull River valley, Bighorn Basin, Wyoming

1979 ◽  
Keyword(s):  
River Valley ◽  
Bighorn Basin ◽  
Alluvial Deposits

scholarly journals Geomorphological Assessment to Tract the Flow Evolution of Kali Putih, Srumbung District, Magelang Regency, Central Java, Indonesia

2020 ◽  
Vol 5 (1) ◽  
pp. 1-10
Author(s):  
Sari Bahagiarti Kusumayudha ◽  
I Made Oki Sanjaya ◽  
Helmy Murwanto ◽  
Sugeng Raharjo
Keyword(s):  
River Valley ◽  
River Channels ◽  
Alluvial Deposits ◽  
Merapi Volcano ◽  
White River ◽  
The Past ◽  
Central Java ◽  
Dry Valley ◽  
Flow Evolution ◽  
Upper Slope

Kali Putih (The White River) is located in Srumbung district, Magelang regency, Central Java, Indonesia. It is originated from the upper slope of Merapi volcano, flowing to the Southwest direction. Kali Putih belongs to one of the most channels where frequently flowed by lahar of Merapi volcano. Based on geomorphological and geological traces found at the surrounding of modern Kali Putih channel, this indicated that the flow of Kali Putih has undergone displacement several times. The position of ancient river valley in the past has changed into the modern river valley in the present time. The existence of ancient Kali Putih is exhibited by the presence of large dry valley morphology associated with volcanic blocks, gravels, and sand sized materials with various sorting, representing the characteristics of lahar and alluvial deposits. In the present time, the former river channels are currently used by local people for agricultural and fisheries land.

La terminaison de l'axe de Vigny et la tectonique du meandre d'Acheres

1945 ◽  
Vol S5-XV (1-3) ◽  
pp. 127-140
Author(s):  
Jacques Bourcart ◽  
Robert Soyer
Keyword(s):  
River Valley ◽  
Seine River ◽  
Alluvial Deposits

Abstract Study of the stratigraphic and tectonic relations of strata underlying modern alluvial deposits and overlying the Cretaceous of the Acheres meander region in the Seine river valley, France, revealed by a series of borings, shows that the Vigny structural axis terminates at the Seine and that the Acheres meander is located in a synclinal trough.

Alluvial deposits evolution in the Inaouene river valley (Morocco) during late Pleistocene and Holocene epoch.

2021 ◽  
Author(s):  
Mohammed Lghamour ◽  
Lhoucine Karrat ◽  
Vincenzo Picotti ◽  
Irka Hajdas ◽  
Negar Haghipour ◽  
...  
Keyword(s):  
Organic Matter ◽  
Late Pleistocene ◽  
Ion Source ◽  
River Valley ◽  
Middle Pleistocene ◽  
Annual Rainfall ◽  
Carbonate Content ◽  
Alluvial Deposits ◽  
Homogeneous Surface ◽  
Middle Atlas

<p>      The Inaouène wadi is a river located in the northern region of Morocco. Its catchment area covers about 5124 km² with an average altitude of 800 m. The tributaries drain the marly reliefs of the Prerif in the northern side, as well as its southern ones are crossing the liasic carbonate and the Paleozoic crystalline rocks of the last Middle Atlas foothills. This region is characterised by a semi-arid Mediterranean climate influenced by the ocean oscillations, the average annual rainfall records 600 mm with a very significant spatial and interannual irregularity.</p><p>Along the major part of its flow, the Inaouène river has cut its bed between the Prerif and the Middle Atlas belts, by following the foreland corridor that separates them. From a pass (Touaher) that marks the corridor closing, the river valley widens from East to West, forming an alluvial plain with a maximum width of 5 km incised by a meandering and highly sinuous stream.</p><p>      Alluvial deposits in this valley are more developed on the Atlas side than at the Prerif foot; At least five levels representing the vestiges of the Lower and Middle Pleistocene terraces are present in the landscape.</p><p>More recent deposits occupy the valley floor, they constitute a more homogeneous surface showing low terraces abrupts and lateral limits between different sedimentary units. These alluvial deposits correspond to the terminal Pleistocene, middle and upper Holocene epoch. About 30 samples of charcoal and TOC have been selected and analysed using the  AMS 14C dating. Due to the scarcity of organic matter, some of the samples contained less than 0.1 mg of carbon and had to be analysed using the gas ion source (GIS) interface of the MICADAS (Haghipour et al., 2019; Wacker et al.,2013). 12 sections were described in the field and of which 8 sections were analysed regarding grain size, mineralogical composition, carbonate content as well as organic matter in soils and sediments.</p><p>      The analysis results indicate that the late Pleistocene is characterised by a high fluvial activity reflected by the development of braided system river and so coarse material, while fine deposits of floodplains are more abundant during the Holocene.</p><p>……...........</p><p><strong>Haghipour, N., Ausin, B., Usman, M. O., Ishikawa, N., Wacker, L., Welte, C., Ueda, K., and Eglinton, T. I., 2019, Compound-Specific Radiocarbon Analysis by Elemental Analyzer-Accelerator Mass Spectrometry: Precision and Limitations: Analytical Chemistry, v. 91, no. 3, p. 2042-2049.</strong></p><p><strong>Wacker, L., Fahrni, S., Hajdas, I., Molnar, M., Synal, H., Szidat, S., and Zhang, Y., 2013, A versatile gas interface for routine radiocarbon analysis with a gas ion source: Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions With Materials and Atoms, v. 294, p. 315-319.</strong></p>

scholarly journals Evolution of the Bystrzyca River valley during Middle Pleistocene Interglacial (Sudetic Foreland, south-western Poland)

2020 ◽  
Vol 12 (1) ◽  
pp. 1679-1703
Author(s):  
Dariusz Krzyszkowski ◽  
Lucyna Wachecka-Kotkowska ◽  
Marcin Krawczyk
Keyword(s):  
Distal Part ◽  
System Development ◽  
River System ◽  
River Valley ◽  
Oxbow Lake ◽  
Middle Pleistocene ◽  
Alluvial Deposits ◽  
The North ◽  
Study Results ◽  
Tectonic Movements

AbstractThe article depicts the problem of river system development during the Middle Pleistocene Interglacial in the Bystrzyca River Valley (Sudetic Foreland, south-western Poland). Ten research sites located within the Świdnica Plain are presented, in which the structural, grain size (granulometry), petrographic, quartz grain morphoscopy, and heavy mineral analyses were carried out. The study results show the formation of piedmont fan deposits 2–8 km to the NE of the Sudetic Marginal Fault. The location of the fluvial deposits between the Sanian and Odranian tills indicates that they were deposited during the Holsteinian Interglacial (Krzczonów Formation, Mazovian; see Table 1). According toxthe lithofacies analysis, vast alluvial plains, composed of angular gravel grains in the south and of sands in the north, were deposited in the Sudetic Foreland in the environment of a very dynamic river. They are covered with a discontinuous layer of Odranian till. The petrographic spectrum shows 90–99% of local rocks, namely, Sudetic porphyry, Sowie Mts Gneiss and milky quartz, and 1–10% of Scandinavian rocks. In the proto-Bystrzyca river system, the existence of an oxbow lake in the distal part of the Krzczonów fan has been proved, which was developing at the end of the Holsteinian Interglacial. The continuity of the alluvial deposits is interrupted in the vicinity of Świdnica due to both the tectonic movements and the formation of the narrow tectonic graben of Roztoka–Mokrzeszów.

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