Strati-graphic Studies of Antarctic Ice.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF-1348336935&userType=user&freeTextValue=Strati-graphic+Studies+of+Antarctic+Ice.

Brief Description (Abstract):

For the stratigraphic studies of Antarctic ice which has an accumulation record of thousands of years various methods were attempted viz (i) direct measurement through a network of stakes (i) dif ferentiation of accumulated layers through difference in stratigraphic character (m) establishment of reference horizon through radioactive fall out and (iv) the O 8/O6 and D/H values of thee deposited snow and ice. On the basis of stratigraphic and physical characters Antarctica ice core study revealed two cate gones (i) ice or depth hoar which shows compaction larger crystal grains greater hardness and dull grey to green colour and (ii) firn which is less compact with smaller grain size and white to off white colour In addition to these major stratigraphic layers 1.5 cm thic sandy layer about 36 cm below the ice surface was also accorded in one bore hole.

Status: Completed

Purpose: I our methods were applied to calculate the rate of accumulation and age of the ice in various sector of Antarctica (i) direct measurement through a network of stakes (ii) differentiation of accumulated layers through difference in stratigraphic character, (iii) establishment of a reference horizon through radioactive fallout (artificial activity measurement) (In case of Antarctica 1954 orearly 1955) and (iv). The O 8/O ratio of the deposited snow, giving the temperature at which snow has formed and thus delineating summer and winter layers.It was possible to probe only a few meters of the surface of this ice cover.

Presentation Format: Documentdigital

Distribution Format: Cryosphere

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Cryosphere,

Place/Location(s): Dakshin Gangotri, Antarctic,

Project: Strati-graphic Studies of Antarctic Ice,

Topic Category(s): GeoScientific Information,

Date(s): 2020-08-24 (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 : 1983-01-01
End Date   : 1984-12-31