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Global Change Master Directory (GCMD)
An Integrated Geomagnetic and Petrologic Study of the Dufek Complex
Entry ID: NSF-ANT05-37609


Summary
Abstract: This project studies remnant magnetization in igneous rocks from the Dufek igneous complex, Antarctica. Its primary goal is to understand variations in the Earth's magnetic field during the Mesozoic Dipole Low (MDL), a period when the Earth's magnetic field underwent dramatic weakening and rapid reversals. This work will resolve the MDL's timing and nature, and assess connections between reversal rate, geomagnetic intensity and directional variability, and large-scale geodynamic processes. The project also includes petrologic studies to determine cooling rate effects on magnetic signatures, and understand assembly of the Dufek as an igneous body. Poorly studied, the Dufek is amongst the world's largest intrusions and its formation is connected to the break-up of Gondwana. The broader impacts of this project include graduate and undergraduate education and international collaboration with a German and Chilean IPY project.

Related URL
Link: View Related Information
Description: Original data submitted.


Link: View Related Information
Description: Geochemical Resource Library (GRL)
Original data submitted.


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Description: Magnetics Information Consortium (MagIC)
Original data submitted.


Link: View Related Information
Description: NSF Award Abstract #0537609

Geographic Coverage
 N: -60.0 S: -90.0  E: 180.0  W: -180.0

Data Set Citation
Version: Not provided


Temporal Coverage
Start Date: 2006-10-01
Stop Date: 2011-09-30


Location Keywords
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
SOLID EARTH >GEOMAGNETISM >PALEOMAGNETISM    [Definition]


Project
NSF/PLR >Division of Polar Programs, National Science Foundation    [Information]


Data Set Progress
COMPLETE


Data Center
United States Antarctic Program Data Center    [Information]
Data Center URL: http://www.usap-dc.org/

Data Center Personnel
Name: ROBERT A. ARKO
Email: info at usap-data.org
Contact Address:
Lamont-Doherty Earth Observatory
61 Route 9W
City: Palisades
Province or State: NY
Postal Code: 10964
Country: USA


Personnel
JEFFREY GEE
Role: INVESTIGATOR
Email: jsgee at ucsd.edu
Contact Address:
University of California-San Diego
City: San Diego
Province or State: CA
Postal Code: 92093
Country: US


Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2011-12-20
Last DIF Revision Date: 2018-11-12



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