Seminar on Geology of Rajasthan – Status and Perspective

Seminar on Geology of Rajasthan – Status and Perspective

Gondzvana Research (Gondroana Newsletter Section) V. 2, No. 2, pp. 323-324. 0 1999 International Association for Gondwana Research, Japan CONFERENCE ...

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Gondzvana Research (Gondroana Newsletter Section) V. 2, No. 2, pp. 323-324. 0 1999 International Association for Gondwana Research, Japan

CONFERENCE REPORT

Seminar on Geology of Rajasthan - Status and Perspective P. Kataria Department of Geology, M.L. Sukhadia University, Udaipur 323 002, India The seminar on Geology of Rajasthan - Status and Perspective, held on 30thJune, 1998 was organised by the Department of Geology, M. L. Sukhadia University, Udaipur, Rajasthan, under the second phase of DSA programme granted to the Department by the University Grants Commission, New-Delhi.The main objective of the seminar was to discuss the geological events in the BundelkhandAravalli cratonic block of the Indian shield. The state of Rajasthan is geologically unique, as it shows almost complete record of geological history. The Precambrian period is represented by the Banded Gneissic complex of Archaean age followed by full span of Proterozoic, and the end stage of this era is manifested by vast occurrences of Malani rocks and platformal deposits. The Phanerozoic fossilliferous rocks are also well exposed in the transAravalli region. Further, the Thar Desert in western

Rajasthan, exhibits Quaternary geomorphic features. The geology of Rajasthan on these counts is threfore unique. Additionally, the state of Rajasthan is very significant in terms of its mineral resources. The state is proud of having monopoly in some industrial minerals, it is also becoming promising producer of fuel and radioactive minerals in addition to various metallic and non metallic minerals. The seminar was inaugurated by Prof. D. S. Chauhan of JNV University, Rajasthan, and his inaugural address covered some important issues which need to be resolved immediately. He emphasized that geologistsshould be more responsive to the society.Introducing the aims and objectives of the seminar, Dr. P. Kataria, Organising Secretary highlighted the importance of NW Indian shield in general and Rajasthan in particular in the study of geological evolution of the Indian shield.

Prof. A. K. Singh, Vice-chancellor, M. L. Sukhadia University, delivering the presidential address. Seated from right to left are Prof. A. B. Roy and Dr. P. Katana.

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Prof. D. S. Chauhan also chaired the three technical sessions of the seinin'ir. Dr. R. Srinivasan, of National Geophysical Research Institute, Hyderabad, initiated the technical session by presenting a paper on the Archaean Proterozoic Boundary in Rajasthan. H e gave a lucid presentation covering field and chemical aspects of metaigneous and sedimentary rocks of the region and their comparison with the known Archaean rocks of the world. Prof. B. S. Paliwal, from JNV University, discussed aspects of supposedly equivalent rocks of the Aravalli Supergroup in the western Rajasthan. Dr. S. K. Bhushan, of GSI Jaipur, presented a paper on the Neoproterozoic magmatism in Rajasthan. In an exhaustive explanatory presentation, he covered the entire Malani suite of rocks along with Erinpura granite, and proposed an evolutionary model for these rocks. Prof. D. S. Chauhan read a paper on the Tectonic and sedimentary evolution of the Marwar basin: Neoproterozoic -early Cambrian intracratonic sag basin. He illustrated that the Marwar basin is the oldest and largest basin of the western Rajasthan which is bounded by the early to middle Proterozoic Aravalli- Delhi orogen and late Proterozoic Malani igneous suite of rocks. Dr. Anil Bhandari, of ONGC reviewed the Phanerozoic stratigraphy of western Rajasthan by synthesizing and integrating available data on litho-bio and chrono-stratigraphy. He also gave special reference to the hydrocarbon occurrences in the rocks of the region. Dr. Amal Kar, of CAZRI, presented a paper on the Quaternary period in Rajasthan: geomorphic process response to forcing and implications for terrain evolution. He showed that the climatic variability within the state determines the relative efficacy of the geomorphic processes, and pointed out that during the Quaternary period climate fluctuated several times in this region. Dr. P. S. Ranawat, Department of

Geology, Udaipur, presented a paper on the industrial (nonmetallic) minerals of Rajasthan. He pointed out the uniqueness of the industrial mineral resources of Rajasthan. Prof. A. B. Roy delivered a thought provoking address and shared his views on the geology of Rajasthan. In his illustrious a n d lucid presentation he gave several suggestions for future work. The seminar was attended by 59 participants including local participants including geoscientists representing different organisations such as Hindustan Zinc Ltd., Department of Atomic Energy, Govt.of India, Jaipur, Rajasthan State Mines and Minerals Ltd., Ground Water Department, Directorate of Mines and Geology, Govt. of Rajasthan, BHP Minerals India Pvt. Ltd., private entrepreneurs, academic staff, researchers and students. The deliberations of the seminar were concerned on the present knowledge and problems with which the geological community is confronted on different aspects of Geology of Rajasthan and it was also the aim to make concerted efforts on future geological works. The seminar was financially assisted and cosponsored by the B H P Minerals India Pvt. Ltd., New-Delhi and the INSALocal Chapter. The seminar was dedicated to Prof. A. B. Roy, to honour him on the eve of his superannuating from the University service. To honour Prof. A. B. Roy's illustrious career, a felicitation function was organised at the end of the seminar . The felicitation function was presided over by Prof. A.K. Singh, Vice-chancellor, M. L. Sukhadia University, Udaipur. The Vice Chancellor presented Prof. A.B. Roy a shawl, statue of goddess Saraswati and letter of felicitation on his own and on behalf of gathering.

Gondwana Research,

V 2, No. 2, 1999