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Singh, Satyendra
- Geochemical Characteristics of Post-Magmatic Alteration and Thngsten Mineralisation Associated with Balda Granite, District Sirohi, Rajasthan
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Authors
Affiliations
1 Department of Geology, Banaras Hindu University, Varanasi - 221005, IN
1 Department of Geology, Banaras Hindu University, Varanasi - 221005, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 50, No 4 (1997), Pagination: 475-479Abstract
Balda leucogranite is characterised by high B, F, Li, Rb, W, Sn Nb content & Rb/Sr ratio and low Sr, Ba content & Ba/Rb ratio. In the case of altered and mineralised leucogranite geochemical data indicates variable B, F, Li, Rb, W, Sn, Nb contents and Rb/Sr & Ba/Rb ratios, differing significantly from those of fresh rocks. The Rb/Sr and Ba/Rb ratios as well as B, F, Li and Rb contents are the guiding characteristics of the granitic rocks which have undergone postmagmatic alteration and mineralisation. and they provide valuable clue for searching tungsten mineralisation in this area.Keywords
Economic Geology, Geochemistry, Tungsten, Wolframite, Rajasthan.
- Variations in Hepatosomatic Index (HSI) and Gonadosomatic Index (GSI) in Fish Heteropneustes fossilis Exposed to Higher Sub-Lethal Concentration to Arsenic and Copper
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Authors
Affiliations
1 Department of Zoology, DAV College, Kanpur-208001, UP, IN
1 Department of Zoology, DAV College, Kanpur-208001, UP, IN
Source
Journal of Ecophysiology and Occupational Health, Vol 15, No 3-4 (2015), Pagination: 89-93Abstract
The effect of sub lethal concentration 1.31 ppm and 1.84 ppm for Arsenic and Copper on the Hepatosomatic and Gonadosomatic indices of the fish Heteropneustes fossilis was studied. In mature female catfish Heteropneustes fossilis on exposure to both test metals at both higher sub lethal concentration registered marked toxicological alterations and reduction in Hepatosomatic index (HSI) and Gonadosomatic index (GSI) throughout the year in exposed fish group. However in the control group fish the values of HSI and GSI in the increasing order in relation to seasonal variation to their maximum range during pre-spawning phase. The reduced values of above parameter found directly proportional to the metal concentration and duration of the exposure. The results of the present study will be useful for selective breeding programme, conservation and sustainable fishery management of H. fossilis in its natural habitat.Keywords
Heteropneustes fossilis, Sub-Lethal Concentration, Copper, Arsenic HSI and GSI.Full Text
References
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- Sub Lethal Effects of Copper and Arsenic on Some Biochemical and Hematological Parameters of the Blood in an Air Breathing Fish Heteropneustes fossilis
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Authors
Affiliations
1 Department of Zoology, DAV College Kanpur–208001, U.P., IN
1 Department of Zoology, DAV College Kanpur–208001, U.P., IN
Source
Journal of Ecophysiology and Occupational Health, Vol 15, No 3-4 (2015), Pagination: 105-114Abstract
Study was undertaken to evaluate biochemical and hematological alterations resulting from the exposure of Heteropneustes fossilis to both sub-lethal concentration of copper (1.84 ppm and 1.10ppm) and arsenic (1.10 ppm and 0.78ppm) on various tissues for 15 days, 30 days and 60 days. Three groups of 14 fish were taken as control group, arsenic exposed group and copper exposed group. At the end of experiment periodically blood sample were taken from the control and experimental group of fish. Blood was assayed for selected biochemical and hematological parameters (hematocrit, haemoglobin per cent red blood cell counts, white blood cell counts, MCV, MCH, MCHC, clotting time, plasma protein, plasma glucose, blood plasma GOT, GPT, alkaline phosphatase, cholesterol, triglycerides). The hematological indices of both sub-lethal concentration of both test metal indicated a dose-dependent decrease in hemoglobin values, hematocrit values, red blood counts, MCH, MCHC, which are indication of anemia of the normal chronic type. Clotting time significantly increased in copper exposed fish. A dose-duration dependent increase was observed in MCV and WBC count. Biochemical analysis demonstrated the blood plasma level of protein and glucose was lowered in the exposed fish as compared to the control group, but a significant dose dependent elevation was recorded in all other bio chemical parameters. During exposure time a relative decrease in blood glucose level and an increase in blood serum cholesterol level and SGOT, SGPT, alkaline phosphatase, triglycerides level was increased. The result of present study demonstrates the toxic effect of both test metal in test fish Heteropneustes fossilis and recorded hematological and biochemical parameters can be used as an indicator of copper and arsenic related toxicological stress in fish on been exposed to sublethal concentration of both metal.Keywords
Copper, Arsenic, Biochemistry, Hematology, Hetropneustes fossilis, Toxicity.Full Text
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- Hair Growth Activity of Trichosanthes dioica R. Leaves
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Authors
Affiliations
1 Department of Pharmacognosy, Babu Banarasi Das National Institute of Technology and Management, Dr. Akhilesh Das Nagar, Faizabad Road, Lucknow 227 105 U.P, IN
1 Department of Pharmacognosy, Babu Banarasi Das National Institute of Technology and Management, Dr. Akhilesh Das Nagar, Faizabad Road, Lucknow 227 105 U.P, IN