4b30c85e-a05c-4130-aaf6-26fe84b730a3 English UTF-8 Dataset Mr. Sakthivel Samy V National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Point of contact 2020-12-10 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Mineralogical Variation in the Gneisses from Dakshin Gangotri, Antarctica. 2020-08-24 Creation Document digital Mineralogical variations in the gneisses of Dakshin Gangotri was studied by determination of R.I.by liquid immersion method, optic axial angle measurement, determination of composition of plagioc-lase by the help of a universal stage and determination of composition of biotite and hornblende fromR.I. (Ny and Nz). Geological mapping has been carried out around the Indian Research Station Dakshin Gangotri (Lat. 74? 45S, Long. 11?37E), which is on the Schirmacher Range of Antarctica. The dominant rocktype present is the biotite-hornblende bearing quartzo-feldspathic gneiss which is the country rockin which are intruded dykes and sills of pegmatite, metadolerite, amphibolite and melasyenite. Thebiotite-hornblende bearing quartzo-feldspathic gneiss is further sub-divided on field and petro-graphic basis into the following four units 1. Microcline rich granoblastic gneiss with faint foliation (Migmatitic gneiss). 2. Garnet porphyroblastic gneiss with pegmatite veins (Migmatitic gneiss). 3. Porphyroblastic gneiss with mafics showing strong foliation. 4. Microcline porphyroblastic gneiss. Completed Dr. S K Chakraborty National Centre for Polar and Ocean Research (NCPOR) 8322525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND ictd@ncpor.res.in Principal investigator Earth Science-Land Surface Theme Dakshin Gangotri Antarctic Place Mineralogical Variation in the Gneisses from Dakshin Gangotri Project English 20.0 140.0 -90.0 30.0 1982-01-01 1983-12-31 TableDigital unknown unknown Mr. Sakthivel Samy V National Centre for Polar and Ocean Research (NCPOR) +91-832-2525515 Headland Sada, Vasco da Gama, Goa 403804 Vasco-da-Gama Goa 403804 IND vssamy@ncpor.res.in Distributor http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF313508031&userType=user&freeTextValue=Mineralogical+Variation+in+the+Gneisses+from+Dakshin+Gangotri%2C+Antarctica.