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Sharma, G. S.
- Abnormal Seedlings in Dipterocarpus retusus Bl.
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Indian Forester, Vol 134, No 2 (2008), Pagination: 275-278Abstract
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- Shoot Blight Disease Causing Menace in Hollong Nurseries
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Indian Forester, Vol 131, No 7 (2005), Pagination: 959-963Abstract
No abstract- Nursery Diseases of Dipterocarpus retusus
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Indian Forester, Vol 130, No 6 (2004), Pagination: 742-748Abstract
Dipterocarpus retusus is widely used in the manufacturing of plywood in North-eastern region of the country. The species suffers heavily from a variety of diseases caused mainly by fungal pathogens in the nursery. During the period of 1995 to 2000, various diseases such as damping-opp, ischolar_main rot, shoot blight and foliar diseases were recorded at different nurseries. The causal organisms, disease symptoms, incidence periods and the extent of damage were studied in detail. These are described here for the first time. Prophylactic management of these nursery diseases is warranted.- Nursery Diseases of Dipterocarpus retusus
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Indian Forester, Vol 130, No 7 (2004), Pagination: 742-748Abstract
Dipterocarpus retusus is widely used in the manufacturing of plywood in North-eastern region of the country. The species suffers heavily from a variety of diseases caused mainly by fungal pathogens in the nursery. During the period of 1995 to 2000, various diseases such as damping-opp, ischolar_main rot, shoot blight and foliar diseases were recorded at different nurseries. The causal organisms, disease symptoms, incidence periods and the extent of damage were studied in detail. These are described here for the first time. Prophylactic management of these nursery diseases is warranted.- Some New Host Records and Additions to Fungi of India
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Indian Forester, Vol 111, No 7 (1985), Pagination: 533-537Abstract
no abstract- Measurement of Radon Concentration and Exhalation Rates from Marble and Granite Samples
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Affiliations
1 Department of physics, B S A college Mathura U.P., IN
2 Department of physics, University college, Kurukshetra, IN
3 Department of applied physics, National Institute of Technology, Kurukshetra, IN
4 Department of Biomedical Engineering, GJUST, Hisar, IN
1 Department of physics, B S A college Mathura U.P., IN
2 Department of physics, University college, Kurukshetra, IN
3 Department of applied physics, National Institute of Technology, Kurukshetra, IN
4 Department of Biomedical Engineering, GJUST, Hisar, IN
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International Journal of Science, Engineering and Computer Technology, Vol 2, No 3 (2012), Pagination: 87-89Abstract
Natural materials such as sand, soil, stone, marbles, granites etc. containing traces of natural radioactivity of uranium 238U, radium 226Ra and potassium 40K could be used as building materials for construction of houses and buildings. These materials are the main sources of radon inside houses and which are mostly derived from rocks as a part of earth's crust. It has been known that some construction materials are naturally more radioactive and removal of such materials from earth's crust and their subsequent use in dwellings constitute an enhanced level of radioactivity. In the present investigation, radon concentration and exhalation rate through different marbles and granites has been estimated. Can technique using LR-115 type II plastic track detector has been used for measurements. After chemical etching track density of registered tracks is used to calculate the radon concentration and exhalation rates of radon using required formula. The radon concentration in marble samples varied from 612 Bq m-3 to 1180 Bq m-3 with an average of 841 ±51.4 Bq m-3 whereas it varied from 787 Bq m-3 to 1749 Bq m-3 in granite with an average of 1377 ± 129 Bq m-3. Based upon the data, the mass and the surface exhalation rates of radon emanated from them have also been calculated. Conclusion: The measurements indicate that radon concentration is higher in graphite than marble which is normal to some higher levels of radon concentration emanated from the samples collected from local market of Sirsa India.- Geochemistry and Petrography of U-Th-Y Mineralisation in Alkali Feldspar Granite (Alaskite) Dykes around Dhanota, Mahendragarh District, Haryana, India
Abstract Views :186 |
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Affiliations
1 Atomic Minerals Division, Department of Atomic Energy, New Delhi-110066, IN
2 Atomic Minerals Division, Department of Atomic Energy, Hyderabad-500016, IN
1 Atomic Minerals Division, Department of Atomic Energy, New Delhi-110066, IN
2 Atomic Minerals Division, Department of Atomic Energy, Hyderabad-500016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 55, No 2 (2000), Pagination: 189-196Abstract
Radioactive alkali feldspar granite (alaskite) occurs as dykes within the Proterozoic granite gneiss around Dhanota. Samples have assayed 0.011 to 0.16% U3O8 and 0.005 to 0.16% ThO2. Yttrium values range from 250 to 800 ppm. Uranothorite occurs in association with zircon, xenotime, magnetite, hematite, sphene and goethite. The U-Th-Y mineralisation in alaskites of Dhanota is disseminated syn-magmatic intrusive type.Keywords
Economic Geology, Geochemistry, Petrography, Alaskite Dyke, Xenotime, Uranothorite, Dhanota, Haryana.- U-Th-Mo Mineralisation in Quartz Syenite from Maturigiri-Dhurakantagiri, West Garo Hills District, Meghalaya, India
Abstract Views :184 |
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Affiliations
1 Atomic Minerals Division, Department of Atomic Energy, Hyderabad 500016, IN
1 Atomic Minerals Division, Department of Atomic Energy, Hyderabad 500016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 30, No 4 (1987), Pagination: 267-272Abstract
At Maturigiri and Dhurkantagiri, mineralised coarse-grained quartz syenite bodies (up to 10 x 2 m) occur as intrusives along the NNW-SSE trending joints in the gneissic country rock. Mineralogically. the quartz syenite is characterised by over 50% K-feld-spar, lesser plagioclase, quartz, mica, garnet and chlorite, together with accessory uraninite, monazite, molybdenite and pyrite. Uraninite occurs as euhedral to subhedral inclusions and mineralisation is syngenetic. Two types of monazite, Th-poor and Th-rich, are present. Molybdenite occurs as veins along fractures and appears to be of late hydrothermal origin. The mineralogical and textural features suggest that quartz syenite was formed from a residual melt of granitic magma of crustal origin.- A Note on the Uranium Mineralisation along Jamual-markundi Fault, Sonbhadra and Sidhi Districts, Uttar Pradesh and Madhya Pradesh
Abstract Views :190 |
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Affiliations
1 Atomic Minerals Directorate for Exploration and Research, New Delhi-110066, IN
2 Atomic Minerals Directorate for Exploration and Research, Jaipur -302030, IN
3 Atomic Minerals Directorate for Exploration and Research, 313/4, Sector-56, Rail Vihar, Gurgaon, Haryana, IN
1 Atomic Minerals Directorate for Exploration and Research, New Delhi-110066, IN
2 Atomic Minerals Directorate for Exploration and Research, Jaipur -302030, IN
3 Atomic Minerals Directorate for Exploration and Research, 313/4, Sector-56, Rail Vihar, Gurgaon, Haryana, IN