A reconstruction of the record of volcanic processes within the vent of a large and explosive basaltic eruption in the Mawson Formation in the Allan Hills
Entry ID: K061_2001_2002_NZ_2

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Summary
Abstract: The contact relationship between volcanic deposits and surrounding country rocks of the Beacon Supergroup are steep over a large area. Beyond the landslide deposits along the contact between Beacon country rock and Mawson volcaniclastic rocks lies the Mawson itself. An area in which the remains of a single vent of the vent complex was well exposed, on both steep and subhorizontal ground surfaces, was mapped in detail with the geometric relationships between different bodies of volcaniclastic rock examined. The characteristics of the processes that cause one body of debris to be apparently shot through the other was investigated. Standard geological mapping techniques, photographs, scaled sketches and rock samples were used to create a 3-dimensional reconstruction of the record of volcanic processes within the vent of a large and explosive basaltic eruption.

Related URL
Link: VIEW PROJECT HOME PAGE
Description: Information about the investigators project


Geographic Coverage
 N: -78.7333 S: -78.7333  E: 159.65  W: 159.65

Temporal Coverage
Start Date: 2001-11-28
Stop Date: 2001-12-22


Location Keywords
CONTINENT > ANTARCTICA > Coombs Hills
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
PALEOCLIMATE >LAND RECORDS >VOLCANIC DEPOSITS    [Definition]
SOLID EARTH >GEOMAGNETISM >PALEOMAGNETISM    [Definition]
SOLID EARTH >ROCKS/MINERALS/CRYSTALS >IGNEOUS ROCKS    [Definition]
SOLID EARTH >TECTONICS >VOLCANIC ACTIVITY >ERUPTION DYNAMICS    [Definition]
SOLID EARTH >TECTONICS >VOLCANIC ACTIVITY >ERUPTION DYNAMICS >LAVA COMPOSITION/TEXTURE    [Definition]
SOLID EARTH >TECTONICS >VOLCANIC ACTIVITY >ERUPTION DYNAMICS >MAGMA COMPOSITION/TEXTURE    [Definition]
SOLID EARTH >TECTONICS >VOLCANIC ACTIVITY >ERUPTION DYNAMICS >PYROCLASTICS COMPOSITION/TEXTURE    [Definition]
SOLID EARTH >TECTONICS >PLATE TECTONICS    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION


Platform
GROUND-BASED OBSERVATIONS    [Information]


Quality
Any remaining geological samples are lodged in the geology department, University of Otago. All data is in the MSc thesis. Some photographs and field notebooks may reside with the investigator.


Data Set Progress
COMPLETE


Originating Center


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
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
JAMES D.L WHITE
Role: INVESTIGATOR
Phone: +64 3 479 7519
Fax: +64 4 479 7527
Email: james.white at stonebow.otago.ac.nz
Contact Address:
Geology department
Universoty of Otago
PO Box 56
Dunedin
Country: NEW ZEALAND


SIMONE HOOD-HILLS
Role: INVESTIGATOR
Email: hoosi925 at student.otago.ac.nz


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


Publications/References
Hood-Hills, S. 2004. Internal features of a single vent structure within a large phreatomagmatic vent complex, Allan Hills, Antarctica. MSc Thesis, Department of Geology, University of Otago, Dunedin, New Zealand

Creation and Review Dates
DIF Creation Date: 2005-10-11
Last DIF Revision Date: 2009-02-13

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