Science Keywords>SOLID EARTH>VOLCANOES>MAGMA
Geochemestry of basic magmatism on Byers Peninsula, Antarctica
Entry ID: 01-95_02

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Summary
Abstract: In this field campaign 59 samples of volcanic and subvolcanic rocks were
collected. Ten of these samples were analyzed via ICP at the Department of
Geology, U. de Chile. The samples are subalkaline rocks ranging in composition
between basalt and rhyolite, with a predominance of basaltic to
"basaltic-andesitic" magnetism with transitional affinities between tholeitic
and calcalkine. The rocks show a high degree of fractionation and high rates
of partial fusion, indicating origin in an island arc tectonic setting. The
magnetism of the arc probably occurred during the early Cretaceous to the
early Tertiary.
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates   
  N: -62.34   S: -62.4   E: -60.54   W: -61.13
Min Altitude: 0 M Max Altitude: 188 M

Data Set Citation
Dataset Originator/Creator: Oteiza, Orlando
Dataset Title: Petrogenesis del Magmatismo basico del Meso-Cenozoico en la Peninsula Byers, Isla Livingston (Archipielago de Shetland del Sur, Antartica)
Dataset Release Date: 1999
Dataset Publisher: University of Chile
Issue Identification: Memoria para optar al titulo de Geologo
Temporal Coverage
Start Date: 1997-01-10
Stop Date: 1997-01-30

Start Date: 1998-01-07
Stop Date: 1998-01-07
Paleo Temporal Coverage
Location Keywords
Science Keywords
ISO Topic Category
Instrument
ICP-MS > Inductively Coupled Plasma Mass Spectrometer Ancillary Description
Access Constraints Restricted access. Please contact data center for more information.
Use Constraints Restricted use. Please contact data center for more information.
Ancillary Keywords
Data Set Progress
IN WORK
Originating Center
Data Center
Centro Nacional de Datos Antarticos, Instituto Antartico Chileno, Chile Supplemental Info
Data Center URL: http://www.inach.cl/

Data Center Personnel
Name: RICARDO JANA
Phone: ++56 /61/ 298135
Fax: ++56 /61/ 298149
Email: rjana at inach.cl
Contact Address:
Plaza Munoz Gamero 1055
XII Region
City: Punta Arenas
Country: Chile
Personnel
DORIS NATHALIE JORQUERA
Role: DIF AUTHOR
Email: djorquer at inach.cl
Contact Address:
Luis Thayer Ojeda 814
Providencia
City: Santiago
Country: Chile
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Publications/References
Oteiza, Orlando., 1999. Petrogenesis del Magmatismo basico del Meso-Cenozoico
en la Peninsula Byers, Isla Livingston (Archipielago de Shetland del Sur,
Antartica). Memoria para optar al titulo de Geologo. U. de Chile.
Creation and Review Dates
DIF Creation Date: 2004-12-08
Last DIF Revision Date: 2004-12-09

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