scholarly journals Modeling Streambank and Artificial Gravel Deposit Erosion for Sediment Replenishment

Water ◽  
2018 ◽  
Vol 10 (4) ◽  
pp. 508 ◽  
Author(s):  
Lukas Vonwiller ◽  
David Vetsch ◽  
Robert Boes
Keyword(s):  
Gravel Deposit

scholarly journals THE SIGNIFICANCE OF THE CRETACEOUS DIAMONDIFEROUS GRAVEL DEPOSIT AT MAHURA MUTHLA, NORTHERN CAPE PROVINCE, SOUTH AFRICA

2009 ◽  
Vol 112 (2) ◽  
pp. 89-108 ◽  
Author(s):  
M.C.J. DE WIT ◽  
J.D. WARD ◽  
M.K. BAMFORD ◽  
M.J. ROBERTS
Keyword(s):  
South Africa ◽  
Northern Cape ◽  
Gravel Deposit

scholarly journals Integrated geological and geophysical study of the Tagil river valley morphology in its middle course

2021 ◽  
Vol 6 ◽  
pp. 24-31
Author(s):  
Aleksei V. Kuzin ◽  
Keyword(s):  
Physical Properties ◽  
River Valley ◽  
Valley Floor ◽  
Eastern Slope ◽  
The Urals ◽  
Fluvial Terrace ◽  
Fluvial Terraces ◽  
Geophysical Study ◽  
Sand And Gravel ◽  
Gravel Deposit

Relevance. Integrated geological and geophysical studies of a bridge in the Makhnevo village area are considered in the frame of the Urals eastern slope geology. Research objective is to study the lithology of the underlying part of the valley floor, determine soil physical and mechanical characteristics, and study a complex of fluvial terraces. Results. Relief elevations across the river valley have been studied, and four main fluvial terrace levels typical of the Urals eastern slope have been identified. An unstable section of the streambed with a canyonshaped valley above the neotectonic unwarping zone has been identified. The geological section of the river’s floodplain and streambed were studied based on geological and geophysical data. A change in the physical properties of glauconite sandstones and clays of Paleogene age in the recent underlying part of the river valley has been established. Layers of sand and glauconite sandstone that can be developed have been found at the new bridge site near the existing sand and gravel deposit. Conclusions. A complex of terraces of the Tagil river valley in its middle course is typical for the Urals eastern slope. The paleovalley is cut into a Paleogene glauconite sandstone layer. In the underlying part of the valley floor, changes in sandstones and clays physical properties have been recorded, and the presence of hypogene minerals was revealed. These are the signs of possible neotectonic processes in the series of the Cenozoic and Quaternary deposits.

scholarly journals Gravel Deposits Of Dauki-Piyain River Bed And Surrounding Flood Plains: A Case Study

2015 ◽  
Vol 41 (2) ◽  
pp. 225-232
Author(s):  
Md Nuruddin Sarker
Keyword(s):  
Construction Materials ◽  
Granite Gneiss ◽  
Alluvial Plain ◽  
Economic Activities ◽  
Flood Plains ◽  
River Bed ◽  
Average Revenue ◽  
The Government ◽  
Gravel Deposit

The Dauki-Piyain river is the major source of gravels in Jaflong area which is located on the alluvial plain south of the Khasi-Jainta Hills. Jaflong gravels comprise quartzite, granite, gneiss, amphibolite, basalt, sandstone and conglomerate. The gravels are mostly fresh and hard and can be used as good construction materials. The deposition of gravels is controlled by the frequency and intensity of water-flow in the Dauki-Piyain river forming the Jaflong quarry. The Dauki river is constantly changing its course. Controlling the river course and keeping its tract clear from debris will make the replenishment of the gravel deposit steady. The main economic activities of the local people are mostly dependent on the gravel and sand extraction business from Jaflong quarry. It is found that about 30,00,000 cubic meters of gravel from 200 hectares areas are extracted per year from the Dauki-Piyain river of Jaflong. The average revenue collected by the Government of the People’s Republic of Bangladesh from this location stands at approximately 30.00 million taka per year. Asiat. Soc. Bangladesh, Sci. 41(2): 225-232, December 2015

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