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Summary
The Frio Shear Zone (FSZ) is a 4km wide, ductile shear zone, forming the boundary between two structural blocks, Walcott Block to the southwest and Dry Valleys Block to the northeast, in South Victoria Land, Antarctica. This boundary is thought to be very important as the two blocks it separates are characterised by different magmatic, metamorphic and tectonic histories. The study ... aimed to examine the nature of the FSZ structurally, and to document the extent of the differences across the shear zone determining the detailed relationships between the sedimentary rocks to the northeast and southwest. The FSZ was examined at Frio Peak and Chancellor Ridge area petrographically and structurally and the extent of the differences across the shear zone was documented. Detailed traverses along ridges where the rocks comprising the shear zone are exposed were undertaken with fieldwork mainly involving documenting lithologies, structural orientations and identifying localised phases of deformation within the main phase of shearing. A comprehensive suite of rocks across the shear zone was collected.

Geographic Coverage Spatial coordinates   

N: -78.1		S: -78.17		E: 163.5		W: 162.5
Min Altitude: 300 Max Altitude: 2000

Temporal Coverage

Start Date: 1999-12-01 Stop Date: 2000-01-03

Location Keywords

CONTINENT > ANTARCTICA > SOUTH VICTORIA LAND CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR

Science Keywords

SOLID EARTH > GEOMORPHOLOGY > TECTONIC LANDFORMS/PROCESSES SOLID EARTH > ROCKS/MINERALS > BEDROCK LITHOLOGY SOLID EARTH > ROCKS/MINERALS > METAMORPHIC ROCKS

ISO Topic Category

GEOSCIENTIFIC INFORMATION

Platform

GROUND-BASED OBSERVATIONS

Ancillary Keywords

ductile shear zone lithologies structural orientation deformation

Data Set Progress

COMPLETE

Data Center

Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand Data Center URL: http://www.antarcticanz.govt.nz/ Data Center Personnel Name: SHULAMIT GORDON Phone: +64 3 358 0200 Fax: +64 3 358 0211 Email: s.gordon at antarcticanz.govt.nz Contact Address: Antarctica New Zealand Private Bag 4745 City: Christchurch Country: New Zealand

Personnel

YVONNE COOK Role: INVESTIGATOR S BECKETT Role: INVESTIGATOR DAVE CRAW Role: INVESTIGATOR Phone: +64 3 479 7529 Fax: +64 3 479 7527 Email: dave.craw at stonebow.otago.ac.nz Contact Address: Department of Geology University of Otago PO BOX 56 City: Dunedin Postal Code: 9016 Country: New Zealand CEISHA POIROT Role: DIF AUTHOR Phone: +64 3 358 0200 Fax: +64 3 358 0211 Email: c.poirot at antarcticanz.govt.nz Contact Address: Antarctica New Zealand Private Bag 4745 City: Christchurch Country: New Zealand SHULAMIT GORDON Role: DIF AUTHOR Phone: +64 3 358 0200 Fax: +64 3 358 0211 Email: s.gordon at antarcticanz.govt.nz Contact Address: Antarctica New Zealand Private Bag 4745 City: Christchurch Country: New Zealand

Related URL

Link: GET DATA Description: GNS PET LAB which is a rock catalogue and geoanalytical database. Do a simple query and enter the investigators name and country = Antarctica

Publications/References
Beckett, S.A. 2001. Frio Shear Zone: A major tectonic boundary in South Victoria Land, Antarctica. MSc thesis, University of Otago, Dunedin.

Creation and Review Dates

DIF Creation Date: 2005-09-22 Last DIF Revision Date: 2009-02-13

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