66ffffb1-717c-434e-9c6d-9c35e18137cb 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 2021-02-01 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) On the Amphibolities from the Indian Research Stationat Antarctica. 2020-08-24 Creation Document digital In the Dakshin Gangotri landmass, dykes, pockets and lenticular outcrops of massive weatheredamphibolites are noticed within the gneisses.Mineralogically three zones have been established in order of increasing grades, viz., Zone A:Amphibolite with sphene but without diopside; Zone B: Amphibolite with both sphene and diopside;Zone C: Amphibolite with diopside but no sphene. The amphibolites form very few exposures around the Indian Research Station at Antarctica and are scattered in parts of the area. Mostly they form weathered massive, lenticular exposures and occur as dykes, veins, small pockets, lenses of small dimension within gneisses. They are well foliated and lineated by parallel alignment of streaky prismatic grains of hornblende. The amphibolites show a northwesterly trend parallel to the strike of the foliation of the gneisses. The amphibolites show sharp or gradational contact with the gneisses. Layers of amphibolites are ptygmatically folded inmigmatitic outcrop. Quartz veins occupy the joint planes in amphibolite. Gradation of texture (orstructure) from granoblastic to gneissose and at places to schistose was seen in the same body ofamphibolite. Completed Dr. M K Kaul 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 On the Amphibolities from the Indian Research Station at Antarctica 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=MF788998260&userType=user&freeTextValue=Amphibolities