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Rock samples for fission track dating from several locations along the Victoria Land coast, used to obtain rates of uplift and vertical movement of the Transantarctic Mountains

Entry ID: K043_1983_1986_NZ_1

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Summary

Abstract: The study of mountain uplift using fission-track dating techniques requires sampling at regular intervals over significant elevation ranges in order to gain information representing the greatest possible time period. Granite Harbour, Wilson Piedmont Glacier, Ferrar Glacier, Miers Valley, The Blue Glacier, New Harbour and the Beardmore Glacier area, contain exposures with relief of up to 2,500m ... over short horizontal distances, were visited for reconnaissance mapping of the basement looking for physical evidence of faulting such as displaced surfaces or crush zones and for collected of samples for fission-track dating in order to obtain uplift rates and measure vertical movement and timing of faulting. Samples were taken within the Granite Harbour area from Cape Roberts as far west as the Clare Range, with samples taken every few kilometres. Vertical sampling profiles were taken at Discovery Bluff, Mt England, Red Ridge, Queer Mountain and Sperm Bluff. Limited sampling was done on the north side of Granite Harbour on a line from Gregory Island to the western end of Kar Plateau with vertical sampling profiles on Lion Island and The Dreikanter. Cuff Cape and the Flatiron were also sampled. The Wilson Piedmont area was mapped and sampling in the Greenwood Valley, Victoria Lower Glacier and Wright Lower Glacier regions.

A number of samples were also taken from coastal outcrops at Gneiss Point, Spike Cape and Dunlop Island. Hanson Ridge and along the Mt Doorly Spur as far west as Mt Allen was sampled with a vertical sampling profile taken off the north ridge of the peak midway between Mt Allen and Mt Doorly. A few samples were taken from Staeffler Ridge and vertical profile off Pond Peak. In the Wright Lower Glacier area, Kingpin was sampled and a vertical sampling profile taken on Mt Newalls eastern spur. Three vertical sampling profiles were taken on the steep south wall of the Kukri Hills in the Ferrar Glacier area. Vertical sampling in the Buddha Dolerite in the Miers Valley was completed with a vertical sampling profile and five samples covering 600m elevation starting from the top of Surveyors Peak.

A horizontal sampling line across the TAM front was started at the coast and continued along the ridge between the Marshall and Miers Valleys extending across the Blue Glacier and up the ridge south of Salient Glacier. Samples were also taken from other ridges in the Blue Glacier area to try and tie down structural trends. A vertical sampling profile and samples were taken from across the north end of the Blue Glacier/Briggs Hills area. Samples were received from the CIROS-2 core from New Harbour at 167m below sea floor. A vertical sampling profile was taken off the eastern end of the Kukri Hills, starting from the top of Mt Barnes and another on the south side of the harbour. Samples were taken from Hjorth Hill, Mt Coleman, Mt Falconer and the south ridge of Mt McLennan and Mt Herb. Coastal regions around the mouth of the Beardmore Glacier and from both the north and south side of the lower Beardmore and inland in the Millar and Queen Elizabeth Ranges were sampled. A vertical sampling profile was taken in the Mt Ida - Granite Pillars area lying just to the north of the Beardmore Glacier and from Cleft Peak. A horizontal sampling traverse was taken from Mt Hope westward to The Cloudmaker and from Mt Robert Scott west to Mt Patrick. A vertical sampling profile was taken off McDonald Bluff to the Marsh Glacier to the test fission track dating method against direct geological observation of Grindley (1967). Moody nunatuk, lying across the Marsh Glacier was sampled, as were various localities in the Queen Elizabeth Range.

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: -76.75

S: -78.17

E: 164.5

W: 162.0

N: -78.25

S: -78.25

E: 164.5

W: 162.0

N: -84.0

S: -84.5

E: 165.0

W: 164.0

Temporal Coverage

Start Date: 1983-10-27

Stop Date: 1984-01-09

Location Keywords

CONTINENT > ANTARCTICA

CONTINENT > ANTARCTICA > SOUTH VICTORIA LAND

Science Keywords

SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > TECTONIC LANDFORMS

SOLID EARTH > ROCKS/MINERALS/CRYSTALS > AGE DETERMINATIONS

SOLID EARTH > ROCKS/MINERALS/CRYSTALS > METAMORPHIC ROCKS

ISO Topic Category

BIOTA

IMAGERY/BASE MAPS/EARTH COVER

PLANNING CADASTRE

Platform

FIELD SURVEYS

Instrument

TIDE GAUGES

GPS > Global Positioning System

Quality The values provided in spatial coverage are approximate only.

See the report for more information.

Access Constraints A pdf copy of the report is available for download from the URL given below.

Use Constraints This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Ancillary Keywords

survey

Tide Gauge

Data Set Progress

COMPLETE

Originating Center

Data Center

Australian Antarctic Data Centre, Australia

Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC Phone: +61 3 6232 3244 Fax: +61 3 6232 3351 Email: metadata at aad.gov.au Contact Address: Australian Antarctic Division 203 Channel Highway City: Kingston Province or State: Tasmania Postal Code: 7050 Country: Australia

Distribution

Distribution Media: HTTP

Distribution Size: 11,536 kb

Distribution Format: pdf

Fees: free

Personnel

HENK BROLSMA

Role: INVESTIGATOR

Phone: +61 3 6232 3528

Fax: +61 3 6232 3351

Email: mapping at aad.gov.au

Contact Address:

Australian Antarctic Division

203 Channel Highway

City: Kingston

Province or State: Tasmania

Postal Code: 7050

Country: Australia

NOEL O WARD

Role: TECHNICAL CONTACT

Contact Address:

GPO Box 378

Geoscience Australia

City: Symonston

Province or State: Australian Capital Territory

Postal Code: 2609

Country: Australia

DAVE CONNELL

Role: DIF AUTHOR

Phone: +61 3 6232 3244

Fax: +61 3 6232 3351

Email: dave.connell at aad.gov.au

Contact Address:

Australian Antarctic Division

203 Channel Highway

City: Kingston

Province or State: Tasmania

Postal Code: 7050

Country: Australia

Creation and Review Dates

DIF Creation Date: 2007-01-18

Last DIF Revision Date: 2008-04-10

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