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Co-Authors
- S. Srinivas
- A. S. K. Murthy
- K. M. Srivastava
- Rakesh Mohan
- H. K. Sabot
- M. Nagendra Kumar
- S. Q. Hoda
- A. Muthamilselvan
- T. S. Shaji
- L. K. Nanda
- A. K. Rai
- U. K. Pandey
- S. L. Aravind
- P. K. Panchal
- A. S. Venkatesh
- P. R. Sahoo
- A. K. Chaturvedi
- P. S. Parihar
- Ashim Jana
- B. C. Sarkar
- Suresh Kumar
- Ajay Kumar
- Pramod Kumar
- Pradeep Kumar Dalal
- Mandeep Rathee
- Amit Singhdoha
- Navin Vikram Singh
Journals
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Yadav, G. S.
- Basinal and Structural Appraisal of Magnetic Data of Chattisgarh Region, Central India
Abstract Views :221 |
PDF Views:2
Authors
Affiliations
1 Plot No 12, Vtkaspuu, S R Nagat (Post), Hyderabad 500 038, IN
2 Department of Geophysics, Banaias Hindu University Varanasi 221005, IN
1 Plot No 12, Vtkaspuu, S R Nagat (Post), Hyderabad 500 038, IN
2 Department of Geophysics, Banaias Hindu University Varanasi 221005, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 63, No 3 (2004), Pagination: 323-335Abstract
The Chattisgarh Basin ot the Ccntial Indian Piecambnan Shield is one of the Puiana basins of Meso to Neopioteiozoic age which has not been geophysically investigated in good detail so far Under the Deep Continental Studies Pioject, two regional magnetic piofiies over a stietch of 382 and 403 km acioss the Chattisgaih legion weie can led out fot the fust time in ncai east west and noith south dnections respectivelyThe Chattisgaih Basin lecoided a bioad magnetic high compared to Sakoh Belt and Dongargaih Supergioup in the west and Sonakhan Greenstone Belt in the east which were reflected as lows on either side of the basin Two dimensional modelling of the data reveals a maximum thickness ot 3000 m toi the Chattisgaih sediments The acidic and basic volcanic locks associated with Sakohs Dongargarh, Sonakhan Greenstone belt and Kondagaon Granuhte belt weie demaicated and their geometiy decipheied The Indravati sediments along north south piofile indicate a maximum thickness of 2500 m Besides this, modelling of magnetic data also leveals the presence of possible inti usives into the Chattisgaih and Indravati sediments / basement
Based on the model lesults and available geological information an attempt is made to study the natuie of the uppei ciust beneath die Chattisgarh basin It appeals that the detritus to the basin sediments is derived fiom the basic locks in the centie, aiound Raipur while the peripheries are of gtanitic / acidic natuie indicating a ring type stiuctuie.
Keywords
Geophysics Magnetic Modelling, Ciustal Structuie, Pioterozoic Chattisgarh Region.
- Uranium Mineralisation in the Mahadek formation of Balphakram Area, South Garo Hills District, Meghalaya
Abstract Views :183 |
PDF Views:2
Authors
Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Jaipur - 302 030, IN
2 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Shillong - 793 011, IN
3 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Hyderabad - 500 016, IN
1 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Jaipur - 302 030, IN
2 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Shillong - 793 011, IN
3 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Hyderabad - 500 016, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 68, No 5 (2006), Pagination: 761-763Abstract
Significant Sandstone-Type uranium mineralisation is recorded from the Rongcheng Plateau and Rongdi nala, located north and WNW of Balphakram Plateau, South Garo Hills district, Meghalaya. Mineralisation is associated with grey coloured, medium to coarse grained, poorly sorted arkosic Wacke-Subarkose suite of sandstones, belonging to the late Cretaceous Mahadek Formation. Sixteen uranium occurrences located 2-30 m above crystalline basement and with dimensions varying from 5 to 300 m × 0.5 to 4 m, have been identified. Grab samples have assayed up to 0.52% eU3O8 0.46%U3O8 (beta/gamma) and <0.010%Tho3. The fertile Precambrian basement crystallines constitute the source of uranium. Presence of organic matter and pyrite in the sandstone provided reducing environment for deposition of pitchblende as the principal discrete uranium mineral.Keywords
U-mineralisaton, Sandstone-Type, Mahadek Formation, Uraninite, Balphakram Area, Meghalaya.- Recognition of a New Albitite Zone in Northern Rajasthan:Its Implications on Uranium Mineralization
Abstract Views :274 |
PDF Views:133
Authors
Affiliations
1 Jamshedpur 831 002, IN
2 Center for Remote Sensing, Bharthidasan University, Tiruchirappalli 620 023, IN
3 Thiruvananthpuram 659 012, IN
4 Hyderabad 500 016, IN
1 Jamshedpur 831 002, IN
2 Center for Remote Sensing, Bharthidasan University, Tiruchirappalli 620 023, IN
3 Thiruvananthpuram 659 012, IN
4 Hyderabad 500 016, IN
Source
Current Science, Vol 108, No 11 (2015), Pagination: 1994-1998Abstract
No Abstract.Full Text
- U-Pb, Pb-Pb and Sm-Nd Ages of Davidite within Albitite Zone from Bichun, Jaipur District, Rajasthan, India:Possible Link between Uranium Mineralization and Grenvillian Orogeny
Abstract Views :216 |
PDF Views:82
Authors
G. S. Yadav
1,
U. K. Pandey
2,
S. L. Aravind
3,
P. K. Panchal
3,
A. S. Venkatesh
4,
P. R. Sahoo
4,
A. K. Chaturvedi
2,
A. K. Rai
2,
P. S. Parihar
2
Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Jamshedpur 831 002, IN
2 Atomic Minerals Directorate for Exploration and Research, Hyderabad 500 016, IN
3 Atomic Minerals Directorate for Exploration and Research, Jaipur 302 030, IN
4 Department of Applied Geology, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, IN
1 Atomic Minerals Directorate for Exploration and Research, Jamshedpur 831 002, IN
2 Atomic Minerals Directorate for Exploration and Research, Hyderabad 500 016, IN
3 Atomic Minerals Directorate for Exploration and Research, Jaipur 302 030, IN
4 Department of Applied Geology, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, IN
Source
Current Science, Vol 111, No 5 (2016), Pagination: 907-913Abstract
Uranium mineralization in Bichun area, Jaipur district, Rajasthan, India is hosted by albitites within the Banded Gneissic Complex (BGC). Detailed mineralogical and EPMA studies reveal the presence of davidite along with brannerite and uraninite. The U-Pb concordia upper intercept age of 933 ± 13 Ma and Pb-Pb isochron age of 930 ± 4 Ma, on pure davidite fractions indicate the timing of uranium mineralizing event to be ca. 930 Ma. The timing of uranium mineralization can be correlated with the Grenvillian orogeny (ca. 1000 Ma). The Sm-Nd model age (TDM) of daviditeis varies from 1851 to 2200 Ma with εNdi(930 Ma) ranging from -10.7 to -15.5 which shows that the Palaeoproterozoic rocks with crustal component (either within BGC or basement granite) are the source for uranium.Keywords
Albitite Zone, Davidite, Geochronology, Orogeny, Uranium Mineralization.Full Text
- Gold and Uranium Occurrences in Quartz-Pebble Conglomerate of Iron Ore Group, Bagiyabahal-Baratangra Area, Sundargarh District, Odisha, India
Abstract Views :262 |
PDF Views:94
Authors
Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Jamshedpur 831 002, IN
1 Atomic Minerals Directorate for Exploration and Research, Jamshedpur 831 002, IN
Source
Current Science, Vol 111, No 12 (2016), Pagination: 1917-1921Abstract
India is deficient in both gold and uranium resources. Almost one-third of the annual global mine production of ~2500 tonnes of gold is imported into India to fulfil the high gold consumption. Uranium is important for production of nuclear energy, more specifically to execute the country's ambitious programme to generate 20 GW of electricity by 2020.Full Text
- Bionomics of Clostera cupreata (Butler) (Lepidoptera:Notodontidae) on Poplar Trees in Haryana
Abstract Views :317 |
PDF Views:0
Authors
Affiliations
1 Department of Entomology, C.C.S. Haryana Agricultural University, Hisar (Haryana), IN
2 Department of Forestry, C.C.S. Haryana Agricultural University, Hisar (Haryana), IN
1 Department of Entomology, C.C.S. Haryana Agricultural University, Hisar (Haryana), IN
2 Department of Forestry, C.C.S. Haryana Agricultural University, Hisar (Haryana), IN
Source
International Journal of Forestry and Crop Improvement, Vol 9, No 1 (2018), Pagination: 33-36Abstract
Poplar is an important tree of agroforestry systems. Among several insect pests Clostera spp. pose serious threat to the poplar trees as it defoliates their leaves completely. Hisar, Haryana witnessed the outbreak of this pest during September-October months in the year 2016. Keeping that in view, biology of this insect was studied during October 2016. The total duration of immature stage was found to be 24.1 days. The fecundity of adult females recorded to be 186 eggs per female. Full grown final instar larva consumed 2.99 g. The life history information would be useful in efficient management of this pest.Keywords
Clostera cupreata, Poplar, Agroforestry, Biology.References
- Ahmed, M. and Faisal, M. (2012). Status of insect pests of poplar in India with special reference to Clostera spp. Forestry Bulletin, 12 (1) : 105-122.
- Chandra, J.P. (2001). Scope of poplar cultivation. Indian forester, 127 (1) : 51-60.
- Singh, A.P. (2004). Important insect pests of poplar in agroforestry and strategies for their management in Northwestern India. Agroforestry Syst., 63(1): 15-26.
- Singh, K.S. (2004) Bioecology and management of poplar leaf defoliator Clostera fulgurita (Walker) (Lepidoptera: Notodontidae) on poplar. Ph.D. Thesis, Punjab Agricultural University, Ludhiana, Punjab. 113 pp.
- Singh, R., Kaur, G. and Sangha, K.S. (2016). Comparative biology of Clostera cupreata (Butler) on different poplar clones of Punjab. J. Insect Sci., 29(1): 109-116.
- Singhdoha, A. (2012). Studies on growth potential, market trend and wood volume table of poplar, Populus deltoides grown in Haryana. M.Sc. Thesis, C.C.S. Haryana Agricultural University, Hisar, Haryana, India. 35 pp.
- Sohi, A.S., Singh, H. and Sandhu, G.S. (1987).Clostera restitura (Walker) (Lepidoptera: Notodontidae) a defoliator of poplar (Populus sp.) in Punjab and its control. J. Tree Sci., 6: 30-33.
- Thakur, M.L. (2000). Forest Entomology (Ecology and Management). Sai Publishers, Dehra Dun. pp. 255.
- Waldbauer, G.P. (1968). The consumption and utilization of food by insects. Adv. Insect Physiol., 5: 229-288.