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Crystalline rocks of the Antarctic Peninsula
Entry ID: dlb_APgeothermochron


Summary
Abstract: This dataset consists of: (1) a suite of crystalline rocks (primarily granitoids & quartzites, with subordinate gneisses, schists, volcanic rocks, and mafic intrusive rocks) collected from the Antarctic Peninsula and adjacent islands, and (2) geochronology and geochemistry data from some of the aforementioned samples.

The collection and analysis of samples in this growing database were funded by NSF awards to David Barbeau at the University of South Carolina (IPY/ANT-0732995 on Drake Passage opening; and EAGER/ANT-1241460 on the purported Cretaceous glaciation of Antarctica), and to Sidney Hemming at Lamont-Doherty Earth Observatory of Columbia University (EAGER/ANT-1241574 on the purported Cretaceous glaciation of Antarctica).

A metadata file detailing the samples collected and analyzed as part of the collection of this sample and data suite can be found through SESAR at the URL listed in this AMD entry. The associated SESAR metadata file will remain Private until September 2015 to facilitate publication of results. However, any investigators interested in access to, details about, or the status of various samples should contact the PI (David Barbeau, at the Tectonics and Sedimentation Laboratory of the University of South Carolina) in advance of that date if necessary.

Many of the samples and unpublished data in this dataset are being used for a subsequent NSF-funded project, thus access to and use of the samples may be limited through 2015.


Purpose: These samples and resulting data were collected to assess (1) the exhumation history of the Antarctic Peninsula, (2) the composition & provenance of possible metasedimentary and igneous sediment sources for the Cretaceous-Cenozoic Larsen basin, and (3) the geochronology of the Antarctic Peninsula.

These efforts are/were primarily undertaken to understand (1) the history of opening of Drake Passage between the Antarctic Peninsula and southernmost South America, and (2) assessment of the purported Cretaceous glaciation of Antarctica.

Related URL
Link: VIEW EXTENDED METADATA
Description: SESAR metadata entry for samples collected and/or analyzed associated with NSF Awards 1241460 and 1241574


Link: VIEW RELATED INFORMATION
Link: VIEW RELATED INFORMATION
Link: VIEW RELATED INFORMATION
Description: Links to NSF Project/Award description pages, as follows:
NSF Award 0732995 (Barbeau)
NSF Award 1241460 (Barbeau)
NSF Award 1241574 (Hemming)


Geographic Coverage
 N: -62.0 S: -72.25  E: -56.5  W: -69.5

Paleo_Temporal_Coverage
Chrono Unit:
Chrono Unit:
Chrono Unit:
Chrono Unit:


Location Keywords
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
SOLID EARTH >GEOCHEMISTRY    [Definition]
SOLID EARTH >ROCKS/MINERALS/CRYSTALS >AGE DETERMINATIONS    [Definition]
SOLID EARTH >ROCKS/MINERALS/CRYSTALS >IGNEOUS ROCKS    [Definition]
SOLID EARTH >ROCKS/MINERALS/CRYSTALS >METAMORPHIC ROCKS    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION


Instrument
ELECTRON MICROPROBES    [Information]
ICP-MS >Inductively Coupled Plasma Mass Spectrometer    [Information]
LA-ICP-MS >Laser Ablation Inductively Coupled Plasma Mass Spectrometer    [Information]
MC-ICP-MS >Multi Collector Inductively Coupled Plasma Mass Spectrometers    [Information]
SCANNING ELECTRON MICROSCOPES    [Information]
MASS SPECTROMETERS    [Information]


Project
NSF/PLR >Division of Polar Programs, National Science Foundation    [Information]
SCOTIA >Sedimentary Connections and Ocean Thoroughfare in the Antarctic    [Information]


Quality
The quality of geochronology and geochemistry data is variable depending largely upon sample quality, but is generally within the standards required for publication in scientific journals in the first decade of the 21st century.


Access Constraints
Access to and use of samples is dependent upon the state of ongoing projects at the University of South Carolina. Contact PI (David Barbeau) for any sample usage requests.

Use of acquired and published geochronology and geochemistry data is unconstrained.

Access to and use of unpublished geochronology and geochemistry data is dependent upon the state of ongoing projects at the University of South Carolina. Contact PI (David Barbeau) with any requests or inquiries about existing unpublished data.


Use Constraints
Use of acquired and published geochronology and geochemistry data is unconstrained, pending acknowledgement of the Tectonics and Sedimentation Laboratory at the University of South Carolina and citation of peer-reviewed publications in which the data was originally published.

Access to and use of unpublished geochronology and geochemistry data is dependent upon the state of ongoing projects at the University of South Carolina. Contact PI (David Barbeau) with any requests or inquiries about existing unpublished data.


Keywords
Noble-Gas Mass Spectrometer
Antarctic Peninsula


Data Set Progress
IN WORK


Data Center
Tectonics and Sedimentation Laboratory, Department of Earth and Ocean Sciences, University of South Carolina
Dataset ID: dlbAPgeothermochron



Distribution
Distribution_Media: email/download
Distribution_Size: variable
Distribution_Format: .xls/.xlsx/.txt
Fees: variable



Creation and Review Dates
DIF Creation Date: 2013-01-22
Last DIF Revision Date: 2016-01-27



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