Precambrian Crust in Eastern and Central India : Proceedings of the International Seminar UNESCO-IUGS-IGCP-368

Contents: 1. Tectonic setting and nature of the Gondwanic Indian crust/S.K. Acharyya. 2. Pre-Pan African and Pan-African events in South India and their implications for Gondwana tectonics/M. Yoshida, M. Santosh and M. Arima. 3. Late Pan-African thermal history in the Eastern Ghats Terrane, India, from U-PB and K-AR Isotopic study of the Mid-Proterozoic Khariar Alkali Syenite, Orissa/M. Aftalion, D.R. Bowes, B. Dash and A.E. Fallick. 4. Palaeogeographic evolution and biotic changes of the Indian subcontinent from the late palaeoproterozoic to early palaeozoic/Ravi Shanker, P.K. Maithy, Gopal Singh and Gopendra Kumar. 5. Sequence of Precambrian events in the Eastern Indian Craton/S. Sengupta and P.K. Mukhopadhyay. 6. Granulites of the ‘Transition Zone’: implications for the westward reach of the Eastern Ghats Belt/S. Gupta and A. Bhattacharya. 7. Granite-greenstone relationship in the Sonakhan Belt, Raipur district, Central India/Dilip Saha, Gautam K. Deb and Sampa Dutta. 8. A reappraisal of the stratigraphy and tectonics of the palaeoproterozoic Mahakoshal Supracrustal belt, Central India/Abhinaba Roy and M.K. Devarajan. 9. Biological remains and Organo-sedimentary structures from Iron Ore Group (Archaean), Barbil Area, Singhbhum, Orissa/P.K. Maithy, S. Kumar and Rupendra Babu. 10. The oldest supracrustal belt from Singhbhum craton and its possible correlation/B.K. Jena and U.K. Behera. 11. Alkaline and Ultramafic Magmatism in the contact zone between high and low grade Terrains : example from northwestern Orissa, India/J.K. Nanda, S.C. Rath and S.N. Behera. 12. Implication of Ramakona cordierite gneiss in the crustal evolution of Sausar Mobile belt in Central India/Santanu Kumar Bhowmik, Taraknath Pal, Naresh Chandra Pant and Sabyasachi Shome. 13. Eruption of Bijawar Lava : an example of precambrian volcanicity under stable cratonic condition/D. Haldar and R.N. Ghosh. 14. Late-Archaen Charnokitic Rocks from the northern marginal zones of the Eastern Ghats belt: a geochronological study/Amitabha Sarkar, U.C. Pati, P.K. Panda, P.C. Patra, H.K. Kundu and S. Ghosh. 15. Lithotectonic domains and petrotectonic evolution of the boundary zone between the Eastern Ghats Mobile Belt and the baster craton, Deobhog Area, Central India/Sudipta Neogi and Nitish Das. 16. Tectono-petrochemical signatures of the Bhela-Rajna Alkaline complex and their genetic implications/Subodh K. Pattnaik and R.N. Mishra. 17. A petrochemical appraisal of the Nuakot Volcanics, Keonjhar district, Orissa/N.K. Sahu, P.K. Swain, S.N. Mohanty and M.M. Mukherjee. 18. Delineation of uraniferous horizons in cataclasite zones using integrated techniques in Precambrian basement in the environs of Chattisgarh basin, Eastern India/C.L. Bhairam, B.V.S.N. Raju, M. Koteswar Rao and T.A. Dattanarayana. 19. Fluid inclusion studies on proterozoic gold prospect of Gurhar Pahar and Gulaldih, Sidhi and Sonbhadra districts, MP and UP/Mangala Prasad, N.K. Dhir, D.P. Sharma, M.A. Khan, G.N. Dwivedi, R.D. Mehrotra and M.L. Yadav. 20. Geology and mineralisation of the Eastern Ghats Manganese Deposits of Orissa/S.K. Bhattacharya, S.N. Behera, B.K. Acharya and A. Hussain. 21. Gold mineralisation in eastern part of Son Valley Greenstone Belt, Sidhi and Sonbhadra Districts, M.P. and U.P./D.P. Sharma, V.P. Sinha, T. Kannadasan, M.A. Khan, R.D. Mehrotra, G.N. Dwivedi, M.L. Yadav, N.K. Dhir, Mangala Prasad and A.K. Tripathi. 22. Sheath folds in the northeastern part of Visakhapatnam, Eastern Ghats Mobile Belt, India/Takamura Tsuchiya, R.S. Divi, A.T. Rao, Yasutaka Tani and Masaru Yoshida. 23. Structural evidence for a Syn-Kinematic arrested Charnockitization in the Chilka Lake Area, Eastern Ghats Belt, India/Christoph Dobmeier. 24. Petrography, mineral chemistry and thermobarometry of the neoproterozoic Mozambique Belt Rocks of Matuu-Masinga Area, Central Kenya/C.M. Nyamai, N. Opiyo-Akech, S.J. Gaciri, Bo Johanson and Y. Sato.

From the foreword: "Recent investigations under the UNESCO-IUGS-IGCP-368 project on "Proterozoic Events in East Gondwana" have led to much better understanding of the assembly, dispersion and reassembly of East Gondwana supercontinent during the Proterozoic. Participants from GSI and other organisations from India have been actively associated with this IGCP project.

"An International Seminar on "The Precambrian Continental Crust on Eastern and Central India" was jointly organised by the Geological Survey of India and the Gondwana Research group, Osaka City University, Japan during 29-30 October, 1998 to take an overview of the progress of work. The present proceedings volume contains 24 papers that were presented in the Seminar by scientists both from India and abroad. Broad themes covered were: i. Stratigraphy and Regional Correlation; ii. Petrology and Geochemistry; iii. Structure and Tectonics and iv. Economic Geology."