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Pant, P. C.
- A Note on the Ostracodes from the Lower Miocene Beds of Saurashtra
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PDF Views:130
Authors
S. C. Khosla
1,
P. C. Pant
1
Affiliations
1 University of Rajasthan, Department of Geology, Udaipur 313001, IN
1 University of Rajasthan, Department of Geology, Udaipur 313001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 19, No 5 (1978), Pagination: 226-227Abstract
The paper records the occurrence of 76 species of ostracodes from the Lower Miocene beds of Saurashtra. 41 species have been assigned to the previously established species from India and elsewhere. 35 species are hitherto not described and many of these are probably new.- A Note on the Ostracoda from the Eocene Beds of Kutch, Gujarat
Abstract Views :182 |
PDF Views:140
Authors
P. C. Pant
1,
S. C. Khosla
2
Affiliations
1 Wadia Institute of Himalayan Geology, 159, Vasant Vihar, Dehradun, IN
2 Department of Geology, University of Rajasthan, Udaipur, IN
1 Wadia Institute of Himalayan Geology, 159, Vasant Vihar, Dehradun, IN
2 Department of Geology, University of Rajasthan, Udaipur, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 23, No 10 (1982), Pagination: 511-513Abstract
Fifty-seven species of ostracodes are recorded from the Eocene beds of Kutch, Gujarat. Forty-six species have been assigned to the previously established species from the Indian subcontinent. Eleven species are left under open nomenclature and are possibly new.- Geological and Geochemical Studies on Carbonatites and Rocks of Carbonatitic (?) Affinity from Areas North of the Narmada Lineament in Madhya Pradesh and Gujarat
Abstract Views :210 |
PDF Views:2
Authors
Affiliations
1 Atomic Minerals Division, Department of Atomic Energy Jaipur - 302 004, IN
2 Atomic Minerals Division, Department of Atomic Energy Vadodara - 390 001, IN
1 Atomic Minerals Division, Department of Atomic Energy Jaipur - 302 004, IN
2 Atomic Minerals Division, Department of Atomic Energy Vadodara - 390 001, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 50, No 3 (1997), Pagination: 307-313Abstract
In the region covering some 400 km2 immediately to the north of Narmada lineament between Dharmrai, Dhar district, Madhya Pradesh, in the east and Nakhal and Panwad, Vadodara district, Gujarat, in the west, numerous E-W to ENE-WSW trending linear fault zones (c.l km to 5 km long X 20 m to over 100 m wide) occur within the Deccan basalts and infratrappean rocks. Brownish, brecciated, calcareous rocks, often with pockets and veins of calcite (carbonatites ?) are found within such fracture zones, and many of them show intrusive-like features. These faults apparently have developed sympathetic to the major Narmada rift to the south which provided structural avenues for the emplacement of carbonatites and associated basic alkaline rocks as found at Ambadongar. Panwad, Kawant and Saidiwasan, as part of the Deccan volcanic episode. Comparison of major and selected trace element data on these carbonatitic (?) rocks with Woolley and Kempe's average trace elements in carbonatite indicates that they are significantly impoverised in Zr, Nb, Y, La and U compared to the carbonatites and phonolites and phonolitic nephelinites of Panwad, Saidiwasan and Nakhal which are enriched in these elements. Carbonate-rich rocks of Bakhatgarh and Katarkheda in the east are rich in CaO and P2O3 compared to those of Panwad and Kawant. Based on available data it is suggested that the carbonatitic (?) types found in the east may represent an early phase of carbonatite (?) impoverished in Zr, Nb, Y, La, U and Th compared to the late residual (?) phase found in the Panwad-Saidiwasan-Nakal area which records significant radioactivity (upto 0.04% eUPR) and higher abundances of Zr (0.06%) and Nb (upto 0.1 %).Keywords
Petrology, Geochemistry, Carbonatite, Lower Narmada Valley, Madhya Pradesh, Gujarat.- Petrography, Geochemistry and Intrusion Mechanism of a Deccan Trap Dyke within the Infratrappeans of Temriya Area, Dhar District, Madhya Pradesh
Abstract Views :174 |
PDF Views:2
Authors
Affiliations
1 Eastern Region, AMD Complex, Khasmahal, Jamshedpur - 831 002, IN
2 Northern Region, West Block VIT, R.K.Puram, New Delhi - 110 066, IN
1 Eastern Region, AMD Complex, Khasmahal, Jamshedpur - 831 002, IN
2 Northern Region, West Block VIT, R.K.Puram, New Delhi - 110 066, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 60, No 4 (2002), Pagination: 381-389Abstract
The Cretaceous infratrappean sedimentary rocks in Temriya area, Dhar district, Madhya Pradesh are intruded by Deccan Trap dykes and sills. Petrochemistry reveals that the dyke rocks are basaltic in composition, have tholciitic affinity (01 and/or Qz normative), continental-within plate characters showing moderate iron-enrichment with Mg. No. ranging from 0.28 to 0.42. The dyke shows variable major and trace element concentration and ratios; TiO2:2.05-2.91%, K2O: 0.71-0.95%, Ba: 183-346ppm, Nb: <5-19ppm, Sr: 195-285ppm, Zr : 39- 124ppn1, Y 20-32ppm and Rb: 28-38ppm with MgO varying from 3.01 to 5.68% indicating that the magma was subsequently contaminated by selective addition processes from the crust. The rocks show a moderate range in REE abundances and LaIYb ratios with a conspicuous LREE enrichment and HREE depletion. The dyke is genetically related to the Deccan Trap volcanism and was derived from a single source emplaced along tensional fractures probably due to the reactivation of basement lineaments.Keywords
Petrography, Geochemistry, Basaltic Dyke, Infratrappeans, Temriya, Madhya Pradesh.- Geochemistry and Rb-Sr Age of the Late Proterozoic Godhra Granite of Central Gujarat, India
Abstract Views :197 |
PDF Views:2
Authors
Affiliations
1 Atomic Minerals Directorate For Exploration and Research, Jamshedpur-831 002, IN
2 Atomic Minerals Directorate For Exploration and Research, Jamshedpur-831 002
3 Atomic Minerals Directorate For Exploration and Research, New-Delhi-110 066, IN
4 Atomic Minerals Directorate For Exploration and Research, Hyderabad-500 016, IN
1 Atomic Minerals Directorate For Exploration and Research, Jamshedpur-831 002, IN
2 Atomic Minerals Directorate For Exploration and Research, Jamshedpur-831 002
3 Atomic Minerals Directorate For Exploration and Research, New-Delhi-110 066, IN
4 Atomic Minerals Directorate For Exploration and Research, Hyderabad-500 016, IN