Instrumental Neutron Activation Analysis of Rock Samples from Schirmacher Range, Central Dronning Maud Land, East Antarctica.

Access URI: 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.

Brief Description (Abstract):

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.

Status: Completed

Purpose: 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).

Presentation Format: Documentdigital

Distribution Format: unknown

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Paleoclimate,

Place/Location(s): Schirmacher Oasis, Antarctic,

Project: Instrumental Neutron Activation Analysis of Rock Samples from Schirmacher Range,

Topic Category(s): ClimatologyMeteorologyAtmosphere,

Date(s): 2020-09-11 (Creation),

Resource Contact(s):
1. Name : Dr. Y Srinivas
    Role : PrincipalInvestigator
    Phone : 8322525515
    E-Mail : ictd [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Distributor Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : Distributor
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Metadata Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : PointOfContact
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Extent:
Start Date : 1990-01-01
End Date   : 1991-12-31