naa a22 4500 510754961 CHVBK 20180411083119.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s12594-013-0005-y doi (NATIONALLICENCE)springer-10.1007/s12594-013-0005-y First carbonatite hosted REE deposit from India [Elektronische Daten] [S. Bhushan, Ashish Kumar] Based on geological mapping and grid channel geochemical sampling, a carbonatite plug hosted REE deposit has been discovered at Kamthai, Barmer district, Rajasthan. The main REE minerals hosted by carbonatite plug are bastanesite (La), basnaesite (Ce), synchysite (Ce), carbocernaite (Ce), cerianite (Ce), ancylite and parisite. The highest value of LREE is 17.31%, whereas, mean works out 3.33% and weighted average is 2.97%. The carbonatite plug covers 19475 sq. meters and the resources have been estimated upto 84 m depth under Proved, Probable and Possible categories. The total resource estimation for carbonatite plug and other carbonate sills, dykes and veins is 4.91 million tons, making this as truly world class deposit. The TMC of individual LREO (lower rare earth oxide) calculated for carbonatite plug only are La=52196 tonnes, Ce =66026 tonnes, Nd = 13663 tonnes, Pr = 5415 tonnes, Sm = 920 tonnes and Eu = 207 tonnes. Besides these REE, the Kamthai resource will produce 551 tonnes of Ga, 44 tonnes of Ge and 1,12,830 tonnes of SrO during its mining life. Geological Society of India, 2013 Geochemistry nationallicence Carbonatite nationallicence Bastanesite nationallicence REE deposit nationallicence Rajasthan nationallicence Bhushan S. Ramgad Minerals and Mining Limited, Baldota Enclave, Abheraj Baldota Road, 583 203, Hospet, India aut Kumar Ashish Ramgad Minerals and Mining Limited, Baldota Enclave, Abheraj Baldota Road, 583 203, Hospet, India aut Journal of the Geological Society of India Springer-Verlag 81/1(2013-01-01), 41-60 0016-7622 81:1<41 2013 81 12594 https://doi.org/10.1007/s12594-013-0005-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12594-013-0005-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bhushan S. Ramgad Minerals and Mining Limited, Baldota Enclave, Abheraj Baldota Road, 583 203, Hospet, India aut NATIONALLICENCE 700 1- Kumar Ashish Ramgad Minerals and Mining Limited, Baldota Enclave, Abheraj Baldota Road, 583 203, Hospet, India aut NATIONALLICENCE 773 0- Journal of the Geological Society of India Springer-Verlag 81/1(2013-01-01), 41-60 0016-7622 81:1<41 2013 81 12594 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer