The present work deals with the geochemical and heavy mineral characteristics studies of sediments of Gosthani river estuary. The aim of study is to determine the provenance, establish the depositional environment and...The present work deals with the geochemical and heavy mineral characteristics studies of sediments of Gosthani river estuary. The aim of study is to determine the provenance, establish the depositional environment and spatial variability of sediment. From the study it is found that the sediment of Gosthani river contains heavy minerals that consist of Rutile, Garnet, Sillimanite, Staurolite, Monazite, Zercon, Pyroxenes, Epidote, Amphiboles and Opaques minerals. The lesser abundant heavy minerals are amphiboles, zircon, monazite, rutile, staurolite, epidote. These heavy minerals indicate that the sediments were essentially derived from metamorphic provenance varying from medium to high grade and partly from crystalline igneous rocks. Well rounded monazites come from Eastern Ghats. This is based on the occurrence of monazite in pegmatite and charnockites of Eastern Ghats. The various characters of rutile and zircon suggest that each of these minerals has a multisource. According to geochemical studies settling of organic matter is highest in areas where deposition of fine grained sediment takes place. The organic carbon is often a good index for deciphering depositional environment.展开更多
The study aimed to assess the physical, chemical and bacteriological quality of drinking water and its potential health effect on study area population. Physical, chemical and bacteriological parameters in six station...The study aimed to assess the physical, chemical and bacteriological quality of drinking water and its potential health effect on study area population. Physical, chemical and bacteriological parameters in six stations of four water springs of Hajigak iron ore mine were studied. These four springs are the predominant source of water in this area. The inhabitant’s villages around the area of interest use these waters 12 months per year without any treatment. Whereas this mine consists of 66% of iron, 6 PPM gold, 26 PPM silver, thorium and some poly metals that directly affect the quality of water. The quality of these water sources has not been investigated and analyzed before for drinking purpose. Therefore studies on spring water quality required analysis for chemical, physical and bacteriological parameters. Chemical and physical analyses revealed that these spring waters are toxic free and the area has very fresh and good quality water based on the guidelines of World Health Organization, national standard of most Asian countries and standard values for Afghanistan. However, the bacteriological analysis detected the E. coli, fecal coli form and total coli form bacteria in water samples that may cause some diseases and health problems.展开更多
文摘The present work deals with the geochemical and heavy mineral characteristics studies of sediments of Gosthani river estuary. The aim of study is to determine the provenance, establish the depositional environment and spatial variability of sediment. From the study it is found that the sediment of Gosthani river contains heavy minerals that consist of Rutile, Garnet, Sillimanite, Staurolite, Monazite, Zercon, Pyroxenes, Epidote, Amphiboles and Opaques minerals. The lesser abundant heavy minerals are amphiboles, zircon, monazite, rutile, staurolite, epidote. These heavy minerals indicate that the sediments were essentially derived from metamorphic provenance varying from medium to high grade and partly from crystalline igneous rocks. Well rounded monazites come from Eastern Ghats. This is based on the occurrence of monazite in pegmatite and charnockites of Eastern Ghats. The various characters of rutile and zircon suggest that each of these minerals has a multisource. According to geochemical studies settling of organic matter is highest in areas where deposition of fine grained sediment takes place. The organic carbon is often a good index for deciphering depositional environment.
文摘The study aimed to assess the physical, chemical and bacteriological quality of drinking water and its potential health effect on study area population. Physical, chemical and bacteriological parameters in six stations of four water springs of Hajigak iron ore mine were studied. These four springs are the predominant source of water in this area. The inhabitant’s villages around the area of interest use these waters 12 months per year without any treatment. Whereas this mine consists of 66% of iron, 6 PPM gold, 26 PPM silver, thorium and some poly metals that directly affect the quality of water. The quality of these water sources has not been investigated and analyzed before for drinking purpose. Therefore studies on spring water quality required analysis for chemical, physical and bacteriological parameters. Chemical and physical analyses revealed that these spring waters are toxic free and the area has very fresh and good quality water based on the guidelines of World Health Organization, national standard of most Asian countries and standard values for Afghanistan. However, the bacteriological analysis detected the E. coli, fecal coli form and total coli form bacteria in water samples that may cause some diseases and health problems.
