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New Occurrence of Albitite from Nubra Valley, Ladakh:Characterization from Mineralogy and Whole Rock Geochemistry


Affiliations
1 Wadia Institute of Himalayan Geology, Dehra Dun 248 001, India
 

We report here the occurrence of albitite in Nubra valley of Ladakh region in the Trans-Himalaya area within Indian Territory at 344446N and 77338E before Panamik (in the Wish Pond, local name of the area). The albitite has been characterized by petrography, mineral chemistry, X-ray diffraction and whole rock geochemistry (i.e. major, trace and rare earth elements (REE)). The albitite comprises 85-96% albite and amphibole, whereas apatite, zircon and ilmenite occur as accessory minerals. The textural relationship and geochemical data indicate its igneous origin. The albitite contains about 5-6 ppm U and Th which may possibly host U-REE mineralization.

Keywords

Albitite, Karakoram, Mineral Chemistry, XRD, Whole Rock Chemistry.
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  • Ray, S. K., The albitite line of northern rajasthan – a fossil intracontinental rift-zone. J. Geol. Soc. India, 1990, 36, 413–423.

  • Fareedudin and Bose, U., A new occurrence of albitite dyke near Arath, Nagaur district, Rajasthan. Curr. Sci., 1992, 62, 635–636.

  • Yadav, G. S., Muthamilselvan, A., Shaji, T. S., Nanda, L. K. and Rai, A. K., Recognition of a new albitite zone in northern Rajasthan: its implications on uranium mineralization. Curr. Sci., 2015, 108, 1994–1998.

  • Barbier, M., Caggianelli, A., Di Florio, M. and Lorenzoni, S., Plagiogranites and gabbroic rocks from the mingora ophiolitic mélange, swat valley, NW Frontier Province, Pakistan. Mineral. Mag., 1994, 58, 553–566.

  • Srimal, N., India-asia collision: implications from the geology of the eastern Karakoram. Geology, 1986, 14, 523–527.

  • Thakur, V. and Misra, D., Tectonic framework of the Indus and Shyok suture zones in Eastern Ladakh, Northwest Himalaya. Tectonophysics, 1984, 101, 207–220.

  • Weinberg, R. F., Dunlap, W. J. and Whitehouse, M., New field, structural and geochronological data from the Shyok and Nubra valleys, Northern Ladakh: Linking Kohistan to Tibet. Tectonics of the Nanga Parbat Syntaxis and the Western Himalaya, 2000, 170, 253–275.

  • Schwartz, M. O., Geochemical criteria for distinguishing magmatic and metasomatic albite-enrichment in granitoids – examples from the Ta-Li granite Yichun (China) and the Sn-W deposit tikus (Indonesia). Miner. Deposita, 1992, 27, 101–108.

  • Smith, J. V., Feldspar minerals. Tom 2. Chemical and Textural Properties, Springer-Verlag, Berlin, 1974.

  • Harlov, D., Tropper, P., Seifert, W., Nijland, T. and Förster, H.-J., Formation of al-rich titanite (catisio 4 o–caalsio 4 oh) reaction rims on ilmenite in metamorphic rocks as a function of fh 2 o and fo 2. Lithos, 2006, 88, 72–84.

  • Leake, B., Nomenclature of amphiboles: report of the subcommittee on amphiboles of the international mineralogical association, commission on new minerals and mineral names. Can. Mineral., 1997, 35, 219–246.

  • Saini, N., Mukherjee, P., Rathi, M., Khanna, P. and Purohit, K., A new geochemical reference sample of granite (dg-h) from Dalhousie, Himachal Himalaya. Geol. Soc. India, 1998, 52, 603–606.

  • Khanna, P. P., Saini, N. K., Mukherjee, P. K. and Purohit, K. K., An appraisal of icp-ms technique for determination of rees: Long term qc assessment of silicate rock analysis. Himal. Geol., 2009, 30, 95–99.

  • Boulvais, P., Ruffet, G., Cornichet, J. and Mermet, M., Cretaceous albitization and dequartzification of hercynian peraluminous granite in the salvezines massif (French pyrénées). Lithos, 2007, 93, 89–106.

  • Castorina, F., Masi, U., Padalino, G. and Palomba, M., Constraints from geochemistry and Sr–Nd isotopes for the origin of albitite deposits from Central Sardinia (Italy). Miner. Deposita, 2006, 41, 323–338.

  • Mohammad, Y. O., Maekawa, H. and Lawa, F. A., Mineralogy and origin of mlakawa albitite from Kurdistan region, Northeastern Iraq. Geosphere, 2007, 3, 624–645.

  • Shand, S. J., Eruptive Rocks: Their Genesis, Composition, John Wiley, New York, 1943.

  • Kaur, G. and Mehta, P., The gothara plagiogranite: evidence for oceanic magmatism in a non-ophiolitic association, north Khetri copper belt, Rajasthan, India? J. Asian Earth Sci., 2005, 25, 805–819.

  • Miyashiro, A., Nature of alkalic volcanic rock series. Contrib. Mineral. Petrol., 1978, 66, 91–104.

  • Le Bas, M., Ultra-alkaline magmatism with or without rifting. Tectonophysics, 1987, 143, 75–84.


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  • New Occurrence of Albitite from Nubra Valley, Ladakh:Characterization from Mineralogy and Whole Rock Geochemistry

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Authors

Aditya Kharya
Wadia Institute of Himalayan Geology, Dehra Dun 248 001, India
H. K. Sachan
Wadia Institute of Himalayan Geology, Dehra Dun 248 001, India
Sameer K. Tiwari
Wadia Institute of Himalayan Geology, Dehra Dun 248 001, India
Saurabh Singhal
Wadia Institute of Himalayan Geology, Dehra Dun 248 001, India
P. Chandra Singh
Wadia Institute of Himalayan Geology, Dehra Dun 248 001, India
Santosh Rai
Wadia Institute of Himalayan Geology, Dehra Dun 248 001, India
Sushil Kumar
Wadia Institute of Himalayan Geology, Dehra Dun 248 001, India
Manish Mehta
Wadia Institute of Himalayan Geology, Dehra Dun 248 001, India
P. K. R. Gautam
Wadia Institute of Himalayan Geology, Dehra Dun 248 001, India

Abstract


We report here the occurrence of albitite in Nubra valley of Ladakh region in the Trans-Himalaya area within Indian Territory at 344446N and 77338E before Panamik (in the Wish Pond, local name of the area). The albitite has been characterized by petrography, mineral chemistry, X-ray diffraction and whole rock geochemistry (i.e. major, trace and rare earth elements (REE)). The albitite comprises 85-96% albite and amphibole, whereas apatite, zircon and ilmenite occur as accessory minerals. The textural relationship and geochemical data indicate its igneous origin. The albitite contains about 5-6 ppm U and Th which may possibly host U-REE mineralization.

Keywords


Albitite, Karakoram, Mineral Chemistry, XRD, Whole Rock Chemistry.

References





DOI: https://doi.org/10.18520/cs%2Fv111%2Fi9%2F1531-1535