Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Vanadium Bearing Titaniferous Magnetite Ore Bodies of Ganjang, Karbi-Anglong District, Northeastern India


Affiliations
1 Department of Geology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, India
2 Aurum S.P.R.L., 59, Avenue Colnol Muzemba, Lubumbashi, Congo, the Democratic Republic of the
     

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A new occurrence of (syenite-hosted) Vanadium bearing titaniferous magnetite ore body has been reported from Ganjang (26°09'35" N: 93°20' E), Karbi-Anglong, Northeastern India. The magnetite ore bodies have lumpy and sporadic occurrences within the host syenite pluton intrusive into gneissic country rocks. Ore microscopic studies reveal that magnetite is often associated with haematite and ilmenite depicting different textural patterns. Critical consideration of several elemental patterns suggests magmatic differentiation to be main ore-forming process. The ore body is suggested to have been formed as late stage segregation from a differentiating alkaline magma in a fluid enriched milieu.

Keywords

Vanadium Bearing Titaniferous Magnetite, Karbi-Anglong, Widmanstatten Texture, Magmatic Differentiation, Northeastern India.
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  • Vanadium Bearing Titaniferous Magnetite Ore Bodies of Ganjang, Karbi-Anglong District, Northeastern India

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Authors

Abhishek Saha
Department of Geology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, India
Sohini Ganguly
Department of Geology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, India
Jyotisankar Ray
Department of Geology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700 019, India
Avik Dhang
Aurum S.P.R.L., 59, Avenue Colnol Muzemba, Lubumbashi, Congo, the Democratic Republic of the

Abstract


A new occurrence of (syenite-hosted) Vanadium bearing titaniferous magnetite ore body has been reported from Ganjang (26°09'35" N: 93°20' E), Karbi-Anglong, Northeastern India. The magnetite ore bodies have lumpy and sporadic occurrences within the host syenite pluton intrusive into gneissic country rocks. Ore microscopic studies reveal that magnetite is often associated with haematite and ilmenite depicting different textural patterns. Critical consideration of several elemental patterns suggests magmatic differentiation to be main ore-forming process. The ore body is suggested to have been formed as late stage segregation from a differentiating alkaline magma in a fluid enriched milieu.

Keywords


Vanadium Bearing Titaniferous Magnetite, Karbi-Anglong, Widmanstatten Texture, Magmatic Differentiation, Northeastern India.