urn:ieda:metadataabout:10.15784-600051
eng
dataset
Dataset
Interdisciplinary Earth Data Alliance
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2018-05-17
ISO 19139 Geographic Information - Metadata - Implementation Specification
2007
Geochemistry and Petrologic Evolution of Felsic Volcanoes in Western Marie Byrd Land, Antarctica
2009
publication
doi:10.15784/600051
Le Masurier, Wesley
University of Colorado at Boulder, Boulder, CO, 80309, US
wesley.lemasurier@colorado.edu
author
U.S. Antarctic Program (USAP) Data Center
publisher
Abstract: This project uses geochemical studies to determine the origin of volcanic rocks from Marie Byrd Land (MBL), Antarctica. Surprisingly, adjacent volcanoes in the MBL have dramatically different compositions, ranging from phonolite to trachyte to rhyolite. This diversity offers an opportunity to constrain the processes responsible for generating silica oversaturated and undersaturated magmas in a single geologic setting. Previous work suggests that the most obvious and simplest explanation--crustal contamination--is not a significant factor, and that polybaric fractional crystallization is the major cause. This study evaluates these factors through analyses and interpretation of trace and rare earth element abundances, as well as Sr and Nd isotopic ratios. The broader impacts include outreach programs to the Girl Scouts of America, and dissemination of results through publications and meetings.
funderName:NSF:GEO:PLR:Antarctic Earth Sciences
awardNumber:0536526
awardTitle:Geochemistry and Petrologic Evolution of Felsic Volcanoes in Western Marie Byrd Land, Antarctica
Complete
Le Masurier, Wesley
University of Colorado at Boulder, Boulder, CO, 80309, US
pointOfContact
Antarctic Earth Sciences
program
Chemistry:Rock
IEDA data type categories
IEDA integrated catalog keyword vocabulary
2017-10-11
creation
Antarctica
IntraContinental Magmatism
IEDA feature of interest
IEDA integrated catalog keyword vocabulary
2017-10-11
creation
Geochemistry
Solid Earth
IEDA topic
IEDA integrated catalog keyword vocabulary
2017-10-11
creation
Marie Byrd Land
place
US Antarctic Program Data Center (USAP-DC)
Data Center
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
eng
geoscientificInformation
Marie Byrd Land
-136
-110
-77.25
-73
2006-08-01
2010-07-31
http://dx.doi.org/10.15784/600051
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http://www.usap-dc.org/view/dataset/600051
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This metadata record was generated by an xslt transformation from a DataCite metadata record; The transform was created by Damian Ulbricht and Stephen M. Richard. 2017-11-15 these records include new IEDA keywords for geoportal facets Run on 2018-06-21T19:05:24-07:00
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