naa a22 4500 510755186 CHVBK 20180411083120.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s12594-013-0097-4 doi (NATIONALLICENCE)springer-10.1007/s12594-013-0097-4 K-rich titanate from the Jharia ultrapotassic rock, Gondwana coal fields, eastern India, and its petrological significance [Elektronische Daten] [N. Chalapathi Rao, Anup Sinha, Suresh Kumar, Rajesh Srivastava] We report a rare accessory groundmass mineral of K-rich titanate, having a composition close to that of potassium triskaidecatitanate (K2Ti13O27), from an underground drill-core sample of ultrapotassic rock from southwestern part of the Jharia coal field in the Damodar valley, at the northern margin of the Singhbhum craton, Eastern India. Potassium triskaidecatitanate is regarded as a typomorphic mineral of orangeites (Group II kimberlites) of Kaapvaal craton, southern Africa, and its occurrence in the Jharia ultrapotassic rock is significant since ultrapotassic suite of rocks elsewhere from the Damodar valley have been recently suggested to be peralkaline lamproites based on mineral-genetic classification. The important role played by a unique geodynamic setting (involving a thinned metasomatised lithospheric mantle and inheritance of an Archaean subduction component) at the northern margin of the Singhbhum craton in deciding the petrological diversity of the early Cretaceous ultrapotassic intrusives from the Damodar valley is highlighted in this study. Geological Society of India, 2013 K-titanate nationallicence ultrapotassic nationallicence Jharia nationallicence Damodar Valley nationallicence Singhbhum craton nationallicence Chalapathi Rao N. Department of Geology, Centre of Advanced Study, Banaras Hindu University, 221 005, Varanasi, India aut Sinha Anup Dr. K.S. Krishnan Geomagnetic Res. Lab., Indian Institute of Geomagnetism, 221 505, Jhunshi, Allahabad, India aut Kumar Suresh Department of Geology, Centre of Advanced Study, Banaras Hindu University, 221 005, Varanasi, India aut Srivastava Rajesh Department of Geology, Centre of Advanced Study, Banaras Hindu University, 221 005, Varanasi, India aut Journal of the Geological Society of India Springer-Verlag 81/6(2013-06-01), 733-736 0016-7622 81:6<733 2013 81 12594 https://doi.org/10.1007/s12594-013-0097-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12594-013-0097-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chalapathi Rao N. Department of Geology, Centre of Advanced Study, Banaras Hindu University, 221 005, Varanasi, India aut NATIONALLICENCE 700 1- Sinha Anup Dr. K.S. Krishnan Geomagnetic Res. Lab., Indian Institute of Geomagnetism, 221 505, Jhunshi, Allahabad, India aut NATIONALLICENCE 700 1- Kumar Suresh Department of Geology, Centre of Advanced Study, Banaras Hindu University, 221 005, Varanasi, India aut NATIONALLICENCE 700 1- Srivastava Rajesh Department of Geology, Centre of Advanced Study, Banaras Hindu University, 221 005, Varanasi, India aut NATIONALLICENCE 773 0- Journal of the Geological Society of India Springer-Verlag 81/6(2013-06-01), 733-736 0016-7622 81:6<733 2013 81 12594 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer