A Note on the Petrochemical Characteristics of a Nodular Basalt Dyke from Schirmacher Hills, East Antarctica.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF16843367&userType=user&freeTextValue=A+Note+on+the+Petrochemical+Characteristics+of+a+Nodular+Basalt+Dyke+from+Schirmacher+Hills%2C+East+Antarctica.

Brief Description (Abstract):

The basaltic dyke containing nodules, insitu occurrence of which was located during the present expedition, lies in the central part of the Schirmacher range. Some samples from this were further studied from petrochemical point of view and a few interpretations made. Chemical parameters indicate that the basaltic magma has originated by partial melting at great depth and the magma rose rapidly intruding the country rock. More detailed field and laboratory investigations on this rock will contribute to the knowledge on the origin and evolution of this occurrence.

Status: Completed

Purpose: The second Indian Expedition to Antarctica reported the occurrence of nodular basaltic boulders in the central part of Schirmacher hills, north of the snout of Dakshin Gahgotri glacier. These erratics were reported to occur in the form of few individual nodules and as agglomeration of nodules within the parent rock. However, insitu outcrop of this nodular basalt could not be located although location of these erratics was plotted on the geological map (Kaul et a/., 1985). A re-examination of this area by the geologists of the Fifth Indian Expedition team to Antarctica revealed the occurrence of a small nodular basaltic dyke in the vicinity of these boulders further north (Fig. 1) and thus led to the source of the erratics found earlier. The dyke is about 0.50m in width, on an average, and has transgressed the gneisses.

Presentation Format: Documentdigital

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Supplemental Information:

TableDigital

Keyword(s): Earth Science-Land Surface,

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

Project: A Note on the Petrochemical Characteristics of a Nodular Basalt Dyke from Schirmacher Hills,

Topic Category(s): GeoScientific Information,

Date(s): 2020-09-04 (Creation),

Resource Contact(s):
1. Name : Dr. M K Kaul
    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 : 1985-01-01
End Date   : 1986-12-31