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https://doi.org/10.1594/IEDA/100728
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Light stable isotopic compositions of enriched mantle sources: Resolving the dehydration paradox
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https://ecl.earthchem.org/view.php?id=1119
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citation:
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author:
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@type:
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@type:
Person
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name:
Jacqueline E Dixon
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givenName:
Jacqueline
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familyName:
Dixon
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roleName:
Lead Author
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@type:
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author:
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@type:
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name:
Ilya N. Bindeman
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givenName:
Ilya
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familyName:
Bindeman
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name:
Richard H. Kingsley
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givenName:
Richard
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familyName:
Kingsley
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name:
Kyla K. Simons
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givenName:
Kyla
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familyName:
Simons
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Petrus J. le Roux
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Petrus
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le Roux
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name:
Christina R. Hajewski
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givenName:
Christina
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familyName:
Hajewski
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name:
Peter Swart
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givenName:
Peter
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familyName:
Swart
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@type:
Person
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name:
Charles H. Langmuir
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givenName:
Charles
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familyName:
Langmuir
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name:
Jeffrey G. Ryan
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givenName:
Jeffrey
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familyName:
Ryan
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name:
Kristina J. Walowski
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givenName:
Kristina
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Walowski
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Ikuko Wada
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givenName:
Ikuko
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Wada
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Paul J. Wallace
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givenName:
Paul
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Wallace
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Co Author
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description:
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].
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distribution:
-
license:
https://creativecommons.org/licenses/by-nc-sa/3.0/us/
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dateCreated:
2017-11-14
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inLanguage:
English
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keywords:
Arctic Ridges,Azores Platform,South Atlantic,East Pacific Rise 6-17°N,Regional (Continents,Oceans),volatiles,enriched MORB,stable isotopes,mantle metasomatism
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publisher:
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EarthChem Library
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url:
https://doi.org/10.1594/IEDA/100728
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