Tectonic and structural influences on the Dulung River system in the southwestern fringe of Bengal Basin

2022 ◽  
Vol 15 (1) ◽  
Author(s):  
Subrata Jana
Keyword(s):  
River System ◽  
Bengal Basin

Dissolved fluoride in the Lower Ganges-Brahmaputra-Meghna River system in the Bengal Basin, Bangladesh

2000 ◽  
Vol 39 (10) ◽  
pp. 1163-1168 ◽  
Author(s):  
D. K. Datta ◽  
L. P. Gupta ◽  
V. Subramanian
Keyword(s):  
River System ◽  
Bengal Basin

scholarly journals Glass Production from River Silica of Bangladesh: Converting Waste to Economically Potential Natural Resource

2021 ◽  
Vol 20 (2) ◽  
pp. 1-8
Author(s):  
Mohammad Rajib ◽  
◽  
Md. Fahad Hossain ◽  
Mahfuza Parveen ◽  
◽  
...  
Keyword(s):  
Glass Production ◽  
River System ◽  
Flood Plain ◽  
Heavy Minerals ◽  
Bengal Basin ◽  
Experimental Production ◽  
Physical Separation ◽  
Silicate Minerals ◽  
Industrial Processing ◽  
Environmental Consequences

The Ganges-Brahmaputra river system at the Bengal Basin carries large amounts of sediments on the way to finally deposit at the Bay of Bengal. Those river-transported sediments form bar deposits during dry season in many areas of Bangladesh and accumulate economic mineral depositions at suitable geological environments. Dredging is a must for most of those rivers for proper navigation, as well as protecting bank erosion, which generates millions of tons of waste sand. The dredged materials from river beds are mostly composed of silicate minerals, especially quartz and feldspar along with several dark colored heavy minerals. Like the industrial processing of heavy minerals from bulk sands, various physical separation techniques can be utilized for the beneficiation of silica from those river-born silicate minerals in dredged sands. Those silica have been successfully upgraded to near-glass sand grade in the laboratory, however, they have yet to be utilized for any kind of commercial venture. The present study attempts characterization of several river sands through physical separation and laboratory analysis. The upgraded silica was successfully compared with several quality glass sands and laboratory production of glasses. This experimental production of glass from upgraded silica could potentially be economical considering its industrial application with positive environmental consequences through minimizing the dredging cost, increasing the navigability of the river and ecological balance along the flood plain.

Clay mineral compositions in surface sediments of the Ganges-Brahmaputra-Meghna river system of Bengal Basin, Bangladesh

2019 ◽  
Vol 412 ◽  
pp. 27-36 ◽  
Author(s):  
Md Hafijur Rahaman Khan ◽  
Jianguo Liu ◽  
Shengfa Liu ◽  
Ashraf Ali Seddique ◽  
Li Cao ◽  
...  
Keyword(s):  
Clay Mineral ◽  
Surface Sediments ◽  
River System ◽  
Bengal Basin ◽  
Mineral Compositions ◽  
The Ganges

scholarly journals Late Quaternary climatic fluctuations and the depositional history of the Bengal basin

1996 ◽  
Vol 14 ◽  
Author(s):  
M. H. Monsur ◽  
M. M. M. Chowdhury
Keyword(s):  
Sea Level ◽  
Salt Marshes ◽  
Late Quaternary ◽  
River System ◽  
Unconsolidated Sediments ◽  
Hydrodynamic Condition ◽  
Bengal Basin ◽  
Maximum Height ◽  
Climatic Fluctuations ◽  
Last Glaciation

The peak of the last glaciation (18,000 years BP) was evidenced by dry climatic condition and a narrow palaeoriver system in the Bengal basin. At the end of the last glaciation (about 10,000 years BP), amplified monsoon water plus deglaciated melt water from the Himalayas enormously flowed through these palaeoriver systems. The rivers were overloaded and overflowed, deposited a series of gravel beds in north Bengal, and also caused the erosion of Madhupur, Barind and Chalanbil, leaving a north-south elongated landmass. Sea-level started rising, attained its maximum height at about 5,500 years BP. The lines drawn from Ganakghata to North Nalbila in the Maiskhali Island and also from Cox's Bazar to Teknaf (eastern extremities of salt marshes) represent such an elevated palaeobeach line. Holocene sea­ level rise changed the hydrodynamic condition of river system and the deeply incised valleys were filled up with unconsolidated sediments. Holocene sea-level drop resulted the aerial exposition of the Hatia, Kutubdia, Sandip and other near shore islands of the Bay of Bengal.

Anthropogenic effect on heavy metal contents in surface sediments of the Bengal Basin river system, Bangladesh

2020 ◽  
Vol 27 (16) ◽  
pp. 19688-19702
Author(s):  
Md Hafijur Rahaman Khan ◽  
Jianguo Liu ◽  
Shengfa Liu ◽  
Jingrui Li ◽  
Li Cao ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Surface Sediments ◽  
River System ◽  
Bengal Basin ◽  
Anthropogenic Effect ◽  
Metal Contents

Distribution of C, N and P in the sediments of the Ganges–Brahmaputra–Meghna river system in the Bengal basin

1999 ◽  
Vol 30 (1) ◽  
pp. 75-82 ◽  
Author(s):  
Dilip K Datta ◽  
Lallan P Gupta ◽  
V Subramanian
Keyword(s):  
River System ◽  
Bengal Basin ◽  
The Ganges

Managing Salinity in the Upper Santa Clara River System of California

2009 ◽  
Author(s):  
Nathan Brown ◽  
Brian Louie ◽  
Frank Guerrero ◽  
Terry Foreman ◽  
Sorab Panday ◽  
...  
Keyword(s):  
River System

Establishing an empirical equation for the relationship between total suspended solids and total phosphorus concentrations in the downstream Red river water

2020 ◽  
Vol 20 (3) ◽  
pp. 325-332
Author(s):  
Le Nhu Da ◽  
Le Thi Phuong Quynh ◽  
Phung Thi Xuan Binh ◽  
Duong Thi Thuy ◽  
Trinh Hoai Thu ◽  
...  
Keyword(s):  
Total Phosphorus ◽  
Suspended Solids ◽  
Empirical Relationship ◽  
Water Environment ◽  
Total Suspended Solids ◽  
River System ◽  
Red River ◽  
Reservoir Impoundment ◽  
Downstream Section ◽  
Reasonable Prediction

Recently, the Asian rivers have faced the strong reduction of riverine total suspended solids (TSS) flux due to numerous dam/reservoir impoundment. The Red river system is a typical example of the Southeast Asian rivers that has been strongly impacted by reservoir impoundment in both China and Vietnam, especially in the recent period. It is known that the reduction in total suspended solids may lead to the decrease of some associated elements, including nutrients (N, P, Si) which may affect coastal ecosystems. In this paper, we establish the empirical relationship between total suspended solids and total phosphorus concentrations in water environment of the Red river in its downstream section from Hanoi city to the Ba Lat estuary based on the sampling campaigns conducted in the dry and wet seasons in 2017, 2018 and 2019. The results show a clear relationship with significant coefficient between total suspended solids and total phosphorus in the downstream Red river. It is expressed by a simple equation y = 0.0226x0.3867 where x and y stand for total suspended solids and total phosphorus concentrations (mg/l) respectively with the r2 value of 0.757. This equation enables a reasonable prediction of total phosphorus concentrations of the downstream Red river when the observed data of total suspended solids concentrations are available. Thus, this work opens up the way for further studies on the calculation of the total phosphorus over longer timescales using daily available total suspended solids values.

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