Light stable isotopic compositions of enriched mantle sources: Resolving the dehydration paradox

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Abstract: Volatile compositions of enriched mid-ocean ridge basalt are presented, including water concentrations (FTIR and TC/EA) and isotopic ratios of hydrogen (Conventional and TC/EA), boron (laser ablation ICP-MS), lithium (MC-ICP-MS) and oxygen (laser fluorination). Of special significance, we performed an interlaboratory comparison between conventional and TC/EA techniques for hydrogen isotopic ratios in basaltic glasses, resulting in revisions to the mica standardization protocol for the TC/EA method. Glasses from the Arctic and South Atlantic were analyzed for deltaD SMOW using stepped-heating manometry/mass spectrometry at the University of Miami Stable Isotope Laboratory. Water contents and hydrogen isotope ratios of glasses from the Azores Platform and EPR 6° to 17°N were measured by continuous flow via the High Temperature Conversion / Elemental Analyzer (TC/EA) technique at the University of Oregon. In situ boron isotopic compositions were measured by laser ablation, multiple-multiplier ICP-MS at the Department of Terrestrial Magnetism, Carnegie Institute of Washington. Lithium concentrations and isotopic compositions were measured by MC-ICP-MS at Lamont-Doherty Earth Observatory using chemistry and column procedures following Tomascak et al. [1999], with minor modifications. Oxygen isotopes from Arctic ridge samples were measured by J. Eiler at the California Institute of Technology as described in Cooper et al. [2004]. Other Description: Light Stable Isotopic Compositions of Enriched Mantle Sources: Resolving the Dehydration Paradox. Geochemistry, Geophysics, Geosystems, 18.

Citation

Title Light stable isotopic compositions of enriched mantle sources: Resolving the dehydration paradox

creation date 2017-11-14

publication date 2017

cited responsible party - author

individual Name Dixon, Jacqueline
No contact information provided.

cited responsible party - author

individual Name Walowski, Kristina
No contact information provided.

cited responsible party - author

individual Name le Roux, Petrus
No contact information provided.

cited responsible party - author

individual Name Wada, Ikuko
No contact information provided.

cited responsible party - author

individual Name Kingsley, Richard
No contact information provided.

cited responsible party - author

individual Name Langmuir, Charles
No contact information provided.

cited responsible party - author

individual Name Hajewski, Christina
No contact information provided.

cited responsible party - author

individual Name Swart, Peter
No contact information provided.

cited responsible party - author

individual Name Simons, Kyla
No contact information provided.

cited responsible party - author

individual Name Wallace, Paul
No contact information provided.

cited responsible party - author

individual Name Ryan, Jeffrey
No contact information provided.

cited responsible party - author

individual Name Bindeman, Ilya
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cited responsible party - publisher

organisation Name Interdisciplinary Earth Data Alliance (IEDA)
No contact information provided.

Keywords:

Theme keywords (Coverage Scope):

keyword term: Regional (Continents, Oceans)

Location keywords:

keyword term: Arctic Ridges, Azores Platform, South Atlantic, East Pacific Rise 6-17°N

dataCentre Keywords

keyword term: EarthChem Library (ECL)

Resource language: eng

Resource progress code: Complete

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Arctic Ridges, Azores Platform, South Atlantic, East Pacific Rise 6-17°N

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Credits:

funderName:National Science Foundation awardNumber:0844772

Credits:

funderName:National Science Foundation awardNumber:0351125

Credits:

funderName:National Science Foundation awardNumber:9530373

Credits:

funderName:National Science Foundation awardNumber:9302574

Credits:

funderName:National Science Foundation awardNumber:0351149

point of contact - pointOfContact

individual Name Dixon, Jacqueline
No contact information provided.

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name Landing Page
URL: http://dx.doi.org/10.1594/IEDA/100728
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notes: 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 2019-05-23T14:13:30-04:00

Metadata contact - pointOfContact

organisation Name Interdisciplinary Earth Data Alliance

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Postal Address:
electronic Mail Address: info@EarthChem.org

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URL: http://www.earthchem.org/sites/earthchem.org/files/arthemia_logo.jpg
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Metadata hierarchy level name: Dataset

Metadata language eng

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Metadata standard for this record: ISO 19139 Geographic Information - Metadata - Implementation Specification

standard version: 2007

Metadata record identifier: urn:ieda:metadataabout:10.1594-IEDA-100728

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Metadata record format is ISO19139 XML (MD_Metadata)