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Roy, M. K.
- A Note on the Phosphatic Tuffaceous Shale Hosted Uranium Mineralisation in Semri Group of Sediments around Mankisar-Kathar Area, Sidhi District, Madhya Pradesh
Abstract Views :196 |
PDF Views:2
Authors
Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Nagpur - 440 001, IN
2 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, Nagpur - 440 001, IN
2 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 72, No 2 (2008), Pagination: 215-218Abstract
The paper reports for the first time uranium mineralisation associated with phosphatic tuffaceous shale of the Lower Vindhyan Semri Group, near the southern margin of Son Valley around Mankisar-Karaundiya-Kathar area. Grab samples from this rock unit analyzed upto 900 ppm of U3O8 and upto 18.5 % of P2O5. Uranium enrichment in tuffaceous shale has been inferred due to hydrothermal activity.Keywords
Uranium Mineralization, Semri Group, Sidhi District, Madhya Pradesh.
- Uranium and Polymetallic Sulphide Mineralisation in the Banded Iron Formation at Udaisagar, Udaipur District, Rajasthan
Abstract Views :198 |
PDF Views:2
Authors
Affiliations
1 Atomic Minerals Directorate For Exploration and Research, Department of Atomic Energy, Hyderabad - 500016, IN
2 Atomic Minerals Directorate For Exploration and Research, Department of Atomic Energy, Jaipur - 302018, IN
3 Atomic Minerals Directorate For Exploration and Research, Department of Atomic Energy, Nagpur - 440 001, IN
1 Atomic Minerals Directorate For Exploration and Research, Department of Atomic Energy, Hyderabad - 500016, IN
2 Atomic Minerals Directorate For Exploration and Research, Department of Atomic Energy, Jaipur - 302018, IN
3 Atomic Minerals Directorate For Exploration and Research, Department of Atomic Energy, Nagpur - 440 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 61, No 6 (2003), Pagination: 703-710Abstract
Thmly laminated, pelagic, Banded Iron Formation (BIF) of Lower Proterozoic Aravalli Supergroup lies close to basement granite and phyllites over a stretch of 5 km along the Udaisagar-Kalamagra tract, Udaipur district, Rajasthan. BIF is characterised by rhythmic stratification of meso- and micro-bands of iron oxides with light coloured bands of silica/chert. Banded Haematite Quartzite (BHQ), a part of BIF, is 5-30 m in width and is intercalated with carbonaceous shale/phyllites. Primary sedimentary structures, viz., bedding, banding, laminations, convolute lammations and synsedimentary breccia and faults, coupled with low value for Co/Ni (0.18; n = 7) suggest its deposition as chemogenic sediment in a calm, tranquil and deep-sea environment.BIF analysed on an average (n=5) 35.81 % Fe2O3 and 34.5% Si02 with enrichment in sulphides and uranium (138 ppm). Correlation matrix shows strong positive correlation between uranium and copper (r = 0.80) and negative correlation of U with V, Ni, Co and Mo. Uranium content varies from 100 to 470 ppm (n = 37) and appears to be in adsorbed state on ferric oxide. Field relationship, coupled with ternary plots of Al2O3 - (CaO + MgO) - SiO2, Fe2O3 - (CaO+MgO) - SiO2 and Eu/Sm ratio (av. 0.275; n = 10) confirms its Proterozoic age. BIF exposed at Udaisagar-Kalamagra tract forms a linear belt and resembles the early Proterozoic Lake Superior type in its geochemical signatures.
Keywords
Geochemistry, BIF, Uranium, Base Metal Sulphides, Aravalli Supergroup, Udaisagar, Rajasthan.- Discovery of the Uraniferous Polymetallic Veins in the Gneisses of Chhota-Udaipur, Ajmer District, Ra Jasthan
Abstract Views :180 |
PDF Views:182
Authors
Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, 521207 Pratap Nagar, Tonk Road, Sanganer-Jaipur -303 609, IN
1 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, 521207 Pratap Nagar, Tonk Road, Sanganer-Jaipur -303 609, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 59, No 5 (2002), Pagination: 469-472Abstract
Uraniferous polymetallic veins are found in the Gyangarh Asind acidic igneous suite and Sandmata Complex near Chhota-Udaipur in Rajasthan. These veins occur in continuation of the well-known U-Co-Mo mineralised albitite zone in Rajasthan and represent a potential target.Full Text
- Studies on Metallic Salt Intoxication on Blood Parameters of Two Fishes, Channa gachua and Channa reba
Abstract Views :112 |
PDF Views:2
Authors
Affiliations
1 Industrial Fish and Fisheries, Sri Narayan Singh College, Motihari, Bihar, IN
2 Department of Zoology, K. C. T. C. College, Raxaul, Bihar, IN
1 Industrial Fish and Fisheries, Sri Narayan Singh College, Motihari, Bihar, IN
2 Department of Zoology, K. C. T. C. College, Raxaul, Bihar, IN
Source
Nature Environment and Pollution Technology, Vol 7, No 4 (2008), Pagination: 743-748Abstract
The values of haematocrit, haemoglobin and erythrocytes percentage of untreated Channa gachua in 24, 48, 72 and 96 hr of exposure were in the range of 42.38 to 42.79; 13.95 to 14.35; 3.14 to 3.52, and that of Channa reba, in the range of 42.63 to 43.75; 13.95 to 14.72 and 3.18 to 3.65 respectively. After treatment with two metallic salts i.e., CuSO4 and K2Cr2O7 in different concentrations at these exposures these parameters exhibited a of range of 40.12 to 41.2 and 40.25 to 42.25 (haematocrit); 14.12 to 14.84 and 13.89 to 14.25 (haemoglobin) and 3.06 to 3.26 and 3.05 to 3.22 (erythrocytes) in case of C. gachua while the values were 41.85 to 42.00 and 41.25 to 42.87 (haematocrit); 14.12 to 14.65 and 14.01 to 14.65 (haemoglobin) and 3.10 to 3.55 and 3.12 to 3.62 (erythrocytes) respectively in case of C. reba.Keywords
Metallic Salt Intoxication, Channa gachua, Channa reba, Haematocrit Value, Haemoglobin, Erythrocytes.Full Text