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Information on Symposia per Science Theme

Theme No.

Theme Title

Number of Symposia proposed

Symposia Title

Symposia Conveners

Biographical sketch of the Conveners




Hi-Tech and Critical Mineral Commodities

Dr. D. K. Sinha


Dr. P. R. Golani


Prof. Taofa Zhou



Carbonatites and alkaline rocks: Origin and Evolution with Special Reference to Rare metal and REE Mineralisation

Anton R. Chakhmouradian (Canada)

P. Krishnamurthy (India)

S. G. Viladkar (India)

1: Obtained his doctoral degree on geology and mineralogy in 1997 from St. Petersburgh Univ. Russia. Following post-doctoral studies at Lakehead University, he joined the Univiversity of Manitoba in 2000 and is engaged in teaching and researches focused on the petrology, mineralogy and geochemistry of carbonatites, alkaline rocks and related-mineral deposits. A recipient of the Young Scientist award (2005) of the Min. Assoc. of Canada and also the W. W. Hutchinson Medal of Geol. Assoc. of Canada (2011).

2: Engaged in researches on carbonatites, Deccan Basalts, Uranium Geology and Rare Metal Exploration (carbonatites), both in the field and supported by robust analytical capabilities in XRD, XRF and EPMA at Centre of Advanced Study in Geology, Dr. HarisinghGour Central University (1966-70; 1974-75), University of Edinburgh (1970-74) and AMD (1975-2003). Presently continuing to train Research Scholars and Faculty in Indian Universities with special reference to carbonatite RM & REE related mineral resources in India, jointly convened by Geological Society of India and AMD since 2015).

3: Engaged in teaching and researches of carbonatites of India with special reference to AmbaDongar at the St. Xavier’s College, Mumbai, since 1967, through International collaboration with scientists from Canada, USA, Germany (Alexander Von Humboldt Fellow), Russia, South Africa and UK. Presently engaged in researches on carbonatites at the CRC, AmbaDongar.

Carbonatites, carbonate magma, mantle and crustal regimes, Rare metal and REE mineralisation.

Carbonatites are rare rock types that host rare metal and rare earth element (RM & RE) deposits, which are critical to the development of high-technology applications from cell phones to supercomputers. An understanding of their genesis and evolution with special reference to the mantle source regions to the formation of a deposit is vital for exploration and exploitation. Ever since the proving of the existence of ‘synthetic carbonatite magma’ by experimental studies in the CaO- CO2-H2O system and its corroboration by the eruption of carbonate-lavas with nephelinites in OldoinyoLengai, Tanganyika in 1960, there has been an exponential increase in researches on carbonatites and associated alkaline rocks. Physico-chemical and mineralogical evolution of the carbonatite magma within a given complex is thus vital to ore body location and search.

The Symposium aims to invite abstracts on carbonatite research, especially works those inter-linked the theory and practice that will be a potential help in exploration so that ore body models are refined and which may also lead to better focus on deposit-seeking techniques and approaches. Those who had worked on proven deposits can be specially sought to contribute to the Symposium.

Non-Carbonatites Related REE Mineralisation and Their Production

Yasushi Watanabe


Kenzo Sanematsu (Japan)

1: Yasushi Watanabe, graduated from Hokkaido University, worked for Geological Survey of Japan for 29 years.

2: Kenzo Sanematsu, graduated from Kyushu University and have been working for AIST

Non-alkaline rocks, placer, ion-adsorption, unconventional REE mineralisation

There are wide spectrums of rare earth resources in addition to carbonatites which dominate in LREE. These include non-alkaline-rock related deposits, iron-oxide apatite deposits, phosphate-rich hydrothermal deposits, ion-adsorption deposits, placer deposits, deep-sea sediments, etc. Although the rare earth grades of these deposits are lower than those of the carbonatite deposits, some of the deposits are enriched in HREE, and from some deposits, REE may be produced as a by-product. This symposium aims to discuss the geneses of these REE deposits including transportation and concentration processes of REE in these deposits. This symposium will also discuss geometallurgy of REE of these deposits; how efficiently and feasibly REE could be extracted from the ores.

Rare earths – a Global Perspective

P L Hellman


1: Dr Phillip Hellman has worked on numerous rare earth projects in Australia, Asia, Africa, India, Madagascar, Mongolia, Saudi Arabia and USA. He is the author of various academic and applied papers on rare earths and has specialised in resource estimation.

REE, Mineralogy, geology, resources,

This symposium will provide an introduction to the world’s rare earth’s industry by addressing these topics:

Case studies of the geology, mineralogy of established and emerging rare earth operations

Perspectives on the key factors that require consideration in the evaluation of rare earth deposits. These include price assumptions, how basket prices are constructed and, also misused, and processing routes

Current applied research into novel ways of exploration/extraction of rare earths from different types of deposits.

Critical Raw Materials for Sustainable Development: Geology, Resources, Production and Socio-Economics

Harikrishnan Tulsidas (Switzerland)

Harikrishnan Tulsidas is a professional geologist with over 30 years of experience in management and development of critical raw material and energy resources. He has wide experience in exploration, resource evaluation, development, process innovation, and international policy formulation. He currently works as Economic Affairs Officer in the United Nations Economic Commission for Europe (UNECE) and leads the work on development of global standards for sustainable management of critical raw materials.

CRM, ECE Resources and Sustinability

Many hi-tech applications including high efficiency, energy conserving, less-polluting and low-carbon technologies of the future such as renewable energy, e-mobility, communications, data management, robotics and artificial intelligence require vast amounts of critical raw materials (CRM). Such CRMs are not only essential for the green technologies, but also for more basic objectives of sustainable development such as food production, healthcare and water desalinisation.

Geological understanding of its occurrence and associations were often ignored even when they were found with other high-value materials like iron, copper or gold ores. Some of these materials are associated with refractory minerals. Hence the current technologies for recovery are energy- and chemical-intensive harsh processes involving higher levels of radioactivity.

This symposium aims to discuss CRMs based on the demand and supply analysis; its sustainable production and utilisation. This symposium intends to connect global geological surveys and service organisations, the mining industry and technology providers to meet the objectives of 2030 Agenda for Sustainable Development and beyond.

Critical Metal Deposits and New Technology

Shao-Yong Jiang (China)

Prof. Shao-Yong Jiang has major interests in Ore genesis of the critical metal deposits; petrogenesis of magmatic rocks; stable and radiogenic isotopes and their application in mineral deposit research and in geochronology.

Critical, Strategic, Hi-tech, Green metals; Ore-genesis; Exploration

Critical, strategic, Hi-tech or green metals include (but are not limited to) the rare earth elements, Nb, Ta, Li, Be, Rb, Cs, Zr, Hf, Co, In, Ge, Ga etc. The rapid development of new technologies has led to the increasing demand for these critical metal resources, yet the potential primary and secondary sources of a number of these elements remain somewhat poorly understood. In particular, comparatively little research has been undertaken on the genesis of the diversity of critical metal deposit types, the geochemistry and cycling of these elements. This symposium provides an opportunity to discuss the most recent research into understanding critical metal deposits. Contributions focused on geochemistry, mineralogy, genesis and the exploration of critical metal deposits are encouraged. Topics will encompass the new and novel understanding of traditional ore deposits from multiscale datasets, possibly taking advantage of the recent developments of high spatial resolution techniques for in-situ chemical and isotope analysis.

Raw Materials for the Electric Vehicle Revolution: Geology, Mineralogy and Geometallurgy

Kathryn Goodenough (UK)

Dr Kathryn Goodenough is a Principal Geologist at the British Geological Survey. Her research focuses on the geology of critical metal resources, particularly the rare earth elements and more recently lithium, and she is involved in a number of international collaborations on this topic.

electric vehicle, cobalt, nickel geometallurgy

Modern technology, including low-carbon technology such as renewable energy and electric vehicles, is dependent on a wider range of raw materials than ever before. In particular, growth in electric vehicle (EV) use is expected to drive demand for a range of raw materials used in batteries and motors, particularly including cobalt, lithium, the rare earth elements, nickel, and manganese. Most of these commodities are currently mined from a relatively limited number of deposits worldwide. Improved understanding of the geology, mineralogy and geometallurgy of these deposits is vital to ensure secure, sustainable supply of these raw materials. This symposium invites presentations on all aspects of the life-cycle of these EV raw materials, from geological context and exploration for resources, to mineral processing and metal recovery. Presentations are welcomed on both onshore and offshore deposits, and on both primary and secondary resources.

Mineral Processing Technology for Cleaner Production of High-tech and Critical metals

T Sreenivas




(1) Dr T Sreenivas is a Senior Scientist working for last 30 years in the field of mineral processing of strategic and critical metals. He is also Professor in Homi Bhabha National Institute and recipient of National Geoscience Award with about 100 publications in peer reviewed journals and International Conferences.

(2) Dr Abhilash is a Scientist working for last 14 years in the field of hydro-biohydrometallurgy of strategic and critical metals vis-a-vis recycling of secondary resources. He is Member, National Academy of Sciences (India), and recipient of Young Scientist Award (BRSI, AMI, ISCA, MESA, INSA), Young Metallurgist Award (Govt of India) with about 80 publications in peer reviewed journals and International Conferences.

Beneficiation, Hydrometallurg, Critical Metals, Rare metals

As countries gear-up for endowment of natural resources of high-tech and critical metals which are essential components in green technology materials, it will be critical that various facets of sustainability are integrated into new operations, policies and investments. Elimination of waste and reduction of energy consumption reduce both the demand for new mineral resources and quantities of potentially harmful wastes and contribute to the transition to sustainability. These challenges provide opportunities for the application of mineral processing and extractive metallurgical principles to add value to wastes/co-products, reduce energy consumption and recycle complex and novel materials besides harnessing primary and secondary resources. Many of the geological settings of high-tech and critical metals are in complex environment with reference to their beneficiation and hydrometallurgical processing. In most cases they are by- or co-products of some other major minerals/metals or the tenor may be very lean demanding comprehensive extraction approaches for making their recovery economical and environmentally benign. This Symposium focuses on mineral processing and extractive metallurgy for cleaner production of high-tech and critical metals with active participation by way of Invited lectures and contributory papers from industry, academia and research organisations.

Pegmatite: Mechanism of Emplacement, Genesis, Deposits and Economic Significance

M.B. Verma (India)

Shri M.B. Verma is the Director of Atomic Minerals Directorate for Exploration and Research in India and has more than 35 years of experience in exploration for U, RM and REE hosted in various rocks including pegmatite.

Pegmatite, RM Resources

Pegmatite is a textural attribute rather than composition, where exceptionally coarse size of crystals develops in a variety of physiochemical conditions from a crystallising magma. Granitic bulk composition pegmatites are common however, mafic, alkaline rocks and carbonatitic pegmatites do occur in nature with different suites of minerals.

The role of aqueous vapour phase and growth rate of silicate crystals in pegmatites are the important field of research in experimental igneous petrology. The mechanism of pegmatite emplacement and chemical zonation are other equally important aspects, which need to be addressed. The transfer process of elements in giant crystals is another field of research. This symposium intends to discuss all these aspects Besides, the symposium also aims to give due importance to genetic aspects of REE, Rare alkalies- Li, Rb and Cs, Rare Alkaline Earths- Be, Sr and Ba, High Field Strength Elements including Sn, Nb, Tq, Zr, Hf and Fluxing Components B, P, and F. The relation of LCT and NYF pegmatite to the S, I and A type granite is another major scope of this symposium.