d4973784-30de-432f-8c99-158fb2e32696 eng utf8 dataset pointOfContact National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 voice Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Mr. Sakthivel Samy V 2021-01-29T00:00:00 creation ISO 19115-1 Geographic information - Metadata - Part 1: Fundamentals ISO 19115-1:2014 Instrumental Neutron Activation Analysis of Rock Samples from Schirmacher Range, Central Dronning Maud Land, East Antarctica. 2020-09-11T00:00:00 creation Document digital Non-destructive Instrumental Neutron Activation Analysis (INAA) of rare earth elements, some trace and major-elements of the representative rock samples from Schirmacher Range, Dronning Maud Land, East Antarctica comprising five gneiss samples (quartz-biotite gneiss, garnet-biotite gneiss, sheared banded gneiss, leucocratic gneiss, banded gneiss) have been carried out. The samples were irradiated for 8 hours along with standard reference rock samples of suitable weights in a thermal neutron flux of -1013 ncm-2 sec-1 . The elemental concentrations are estimated by studying the induced activity produced in samples using high resolution gamma ray spectrometry. The results of elemental characterisation of five different rock types are compared with normal magmatic rock and discussed. Instrumental Neutron Activation Analysis is an established, high sensitive and non-destructive nuclear technique used to find quantitative elemental concentrations of rare earth elements and other trace elements ranging from percentage to the trace level with very good precision (Gibson and Jagam,1980 and Gurna et al, 1988). The quantitative determination of several trace elements in the different international standard reference materials (SRM) are often analysed by this technique (Gurna et al, 1988 and Potts and Rogers, 1991). Since the abundances of REE in rocks are being used for petrogenetic studies for their geochemical significance, the accurate data is essential before doing any quantitative modelling. Petrological and mineralogical studies of these rocks have been done extensively. Geochemical studies including.major and trace elements have been carried out and attempts to explain the genesis of the gneisses were made (Chakraborty et al.,1985 Kaul et al., 1985 and 1988). completed principalInvestigator National Centre for Polar and Ocean Research (NCPOR) 8322525515 voice Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND ictd@ncpor.res.in Dr. Y Srinivas climatologyMeteorologyAtmosphere 20.0 140.0 -90.0 30.0 1990-01-01 1991-12-31 Earth Science-Paleoclimate Theme Schirmacher Oasis Antarctic Place Instrumental Neutron Activation Analysis of Rock Samples from Schirmacher Range Project eng TableDigital unknown unknown unknown distributor National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 voice Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Mr. Sakthivel Samy V http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF492976147&userType=user&freeTextValue=Instrumental+Neutron+Activation+Analysis+of+Rock+Samples+from+Schirmacher+Range%2C+Central+Dronning+Maud+Land%2C+East+Antarctica.