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The direction of magma flow in the formation of the Ferrar Large Igneous Province 180 million years ago, Coombs Hills, Victoria Land

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: The direction of magma flow in the formation of the Ferrar Large Igneous Province 180 million years ago, Coombs Hills, Victoria Land
Description:
Abstract:
Exposed at Coombs Hills are vertical bladelike bodies of basaltic rock that cut across older white sedimentary rocks and through deposits of a Jurassic volcanic complex (Mawson Formation). The majority are inferred to be related to lava eruptions at the surface but there is no evidence that any of them pre-dated the explosive activity that produced the Mawson Formation. How magma reached the surface to feed massive basaltic lava flows of the Ferrar Large Igneous Province at Coombs Hills was investigated. Numerous rock samples were analysed by anisotropic magnetic susceptibility (AMS). Field observations of dyke texture, vesicularity, crystal population and lithic fragment content, dyke contacts with the country rock and joint patterns within the dykes was recorded. Systematic field investigations, aerial photograph studies of dyke orientation patterns and cross cutting realtionships between Jurassic Ferrar Dolerite dykes and associated fractures in the area, the fracture length distribution analysis of the dykes, a petrological study to determine mineralogy and degree of glassiness (which is a good indicator of magma fluidity) and a geochemical study of collected rock samples was used to interpret the overall magma distribution of the area.
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Guegan, E. 2006. Magma supply dynamics of the Ferrar Large Igneous Province, Coombs Hills, Antarctica. MSc thesis, University of Otago, Dunedin Garland, M. 2006. Mawson Ferrar Dolerite relationships, northern East Ridge, Coombs Hills, Antarctica. BSc thesis, University of Otage, Dunedin Ross, P.S., White, J.D.L. And McClintock. 2007 (online). Physical volcanology of mafic volcaniclastic deposits and lavas in the Coombs-Allan Hills area, Ferrar large igneous province, Antarctica. In: Physical Volcanology of Large Igneous Provinces. Skilling, I.O. and White, J.D.L. (eds). Journal of Volcanoloy and Geothermal Research. Garland, M., Bannister, J., Lee, D.E. And White, J.D.L. 2007. A coniferous tree stump of Middle Jurassic age from the Ferrar Basalt, Coombs Hills, southern Victoria Land, Antarctica. New Zealand Journal of Geology and Geophysics 50:263-269.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20051128
Ending_Date: 20060106
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 161.05
East_Bounding_Coordinate: 161.37
North_Bounding_Coordinate: -76.96
South_Bounding_Coordinate: -77.9
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > PALEOCLIMATE > LAND RECORDS > VOLCANIC DEPOSITS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > ELEMENTS > MAJOR ELEMENTS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > ELEMENTS > MINOR ELEMENTS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > ELEMENTS > TRACE ELEMENTS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > GEOMAGNETISM > PALEOMAGNETISM
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > IGNEOUS ROCKS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > MINERALS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS > STRESS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > LAVA COMPOSITION/TEXTURE
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > MAGMA COMPOSITION/TEXTURE
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > TECTONICS > VOLCANIC ACTIVITY > ERUPTION DYNAMICS > PYROCLASTICS COMPOSITION/TEXTURE
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS
Theme_Keyword: GROUND-BASED OBSERVATIONS
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > ANTARCTICA
Place_Keyword: CONTINENT > ANTARCTICA > COOMBS HILLS
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: MARAMA GARLAND
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
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.
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NZ/NZAI/ANZ > Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand
Contact_Person: SHULAMIT GORDON
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Resource_Description: K061_2005_2006_NZ_1
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Not Available
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.antarcticanz.govt.nz/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.otago.ac.nz/geology/people/students/gue...
Access_Instructions:
Information about the investigators project
Fees: Not Available
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Metadata_Reference_Information:
Metadata_Date: 20051011
Metadata_Review_Date: 20160127
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: CEISHA POIROT
Contact_Person_Primary:
Contact_Person: SHULAMIT GORDON
Contact_Position: DIF AUTHOR
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Antarctica New Zealand
Address: Private Bag 4745
City: Christchurch
Country: New Zealand
Contact_Voice_Telephone: +64 3 358 0200
Contact_Voice_Telephone: +64 3 358 0200
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Facsimile_Telephone: +64 3 358 0211
Contact_Electronic_Mail_Address: c.poirot@antarcticanz.govt.nz
Contact_Electronic_Mail_Address: s.gordon@antarcticanz.govt.nz
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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