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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
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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.
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Related URL
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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 |
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Temporal Coverage
| Start Date: 2001-11-28 |
| Stop Date: 2001-12-22 |
Location Keywords
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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
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GEOSCIENTIFIC INFORMATION
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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
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Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
[Information]
Data Center URL: http://www.antarcticanz.govt.nz/
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Personnel
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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 |
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SIMONE
HOOD-HILLS Role: INVESTIGATOR Email: hoosi925 at student.otago.ac.nz |
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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 |
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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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