naa a22 4500 510756115 CHVBK 20180411083123.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s12594-013-0122-7 doi (NATIONALLICENCE)springer-10.1007/s12594-013-0122-7 Geochemistry and petrogenesis of acid volcano-plutonic rocks of the Siner area, Siwana Ring Complex, Northwestern Peninsular India [Elektronische Daten] [L. Sarjesh Singh, G. Vallinayagam] Petrochemical studies on acid plutonic (granite, microgranite) and volcanic (rhyolite, trachyte) rocks occurring in the Siner area of the Siwana Ring Complex, Malani Igneous Suite have been carried out. These rocks are characterized by high concentrations of SiO2, Na2O, K2O, Zr, Nb, Y and REE (except Eu) but low in MgO, Fe2O3(t), CaO, Cr, Ni, Sr; indicating their A-type affinity. Field studies in conjunction with the geochemical characteristic indicate that the magmatism in the Siner area is generally represented by peralkaline suite of rocks which are formed due to rift tectonics. It is also suggested that these acidic rocks could have been derived by low degree partial melting of crustal material. Characteristics of certain pathfinder elements such as Rb, Ba, Sr, K, Zr, Nb, REE and the ratios of K/Rb, Zr/Rb, Ba/Rb along with the multi elemental primitive mantle normalized spidergrams suggest that the Siner peralkaline granites and microgranites have the potential for rare metal and rare earth mineralizations. Geological Society of India, 2013 Geochemistry nationallicence Petrogenesis nationallicence Anorogenic acidic rock nationallicence Malani Igneous Suite nationallicence North western Peninsular India nationallicence Sarjesh Singh L. Department of Geology, Kurukshetra University, 136 119, Kurukshetra, India aut Vallinayagam G. Department of Geology, Kurukshetra University, 136 119, Kurukshetra, India aut Journal of the Geological Society of India Springer India 82/1(2013-07-01), 67-79 0016-7622 82:1<67 2013 82 12594 https://doi.org/10.1007/s12594-013-0122-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12594-013-0122-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sarjesh Singh L. Department of Geology, Kurukshetra University, 136 119, Kurukshetra, India aut NATIONALLICENCE 700 1- Vallinayagam G. Department of Geology, Kurukshetra University, 136 119, Kurukshetra, India aut NATIONALLICENCE 773 0- Journal of the Geological Society of India Springer India 82/1(2013-07-01), 67-79 0016-7622 82:1<67 2013 82 12594 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer