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

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

Chrono Unit: Chrono Unit:

Location Keywords

OCEAN > SOUTHERN OCEAN > SOUTH SHETLAND ISLANDS > LIVINGSTON ISLAND CONTINENT > ANTARCTICA GEOGRAPHIC REGION > POLAR

Science Keywords

SOLID EARTH >GEOCHEMISTRY    [Definition]

SOLID EARTH >ROCKS/MINERALS/CRYSTALS >IGNEOUS ROCKS    [Definition]

SOLID EARTH >TECTONICS >VOLCANIC ACTIVITY >ERUPTION DYNAMICS >MAGMA COMPOSITION/TEXTURE    [Definition]

ISO Topic Category

GEOSCIENTIFIC INFORMATION

Instrument

ICP-MS >Inductively Coupled Plasma Mass Spectrometer    [Information]

Access Constraints

Restricted access. Please contact data center for more information.

Use Constraints

Restricted use. Please contact data center for more information.

Keywords

Geochemistry

Island Arcs

Byers Peninsula

Basic Magmatism

Data Set Progress

IN WORK

Originating Center

Data Center

Centro Nacional de Datos Antarticos, Instituto Antartico Chileno, Chile    [Information] 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

MARIO VERGARA Role: TECHNICAL CONTACT Phone: (55-2) 678 4117 Contact Address: Universidad de Chile - Depto de Geologia Plaza Ercilla 803 City: Santiago Country: Chile

ORLANDO ARTURO ORTIEZA Role: INVESTIGATOR Phone: 521 64 21 Email: mariover at tamarugo.cec.uchile.cl Contact Address: Septima Avenida 1247 San Miguel City: Santiago Country: Chile

Creation and Review Dates

DIF Creation Date: 2004-12-08 Last DIF Revision Date: 2004-12-09

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