Clumped-isotope thermometry of magnesium carbonates in ultramafic rocks [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description:: pages 222-250 : digital, PDF file
Additional Creators:: SLAC National Accelerator Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Here, magnesium carbonate minerals produced by reaction of H₂O–CO₂ with ultramafic rocks occur in a wide range of paragenetic and tectonic settings and can thus provide insights into a variety of geologic processes, including deposition of ore-grade, massive-vein cryptocrystalline magnesite; formation of hydrous magnesium carbonates in weathering environments; and metamorphic carbonate alteration of ultramafic rocks. However, the application of traditional geochemical and isotopic methods to infer temperatures of mineralization, the nature of mineralizing fluids, and the mechanisms controlling the transformation of dissolved CO₂ into magnesium carbonates in these settings is difficult because the fluids are usually not preserved.

Report Numbers:

E 1.99:1360188

Subject(s):

Geosciences

Other Subject(s):

Note:

Published through SciTech Connect.
08/19/2016.
": S0016703716304409"
Geochimica et Cosmochimica Acta 193 C ISSN 0016-7037 AM
Pablo Garcia del Real; Kate Maher; Tobias Kluge; Dennis K. Bird; Gordon E. Brown, Jr.; Cédric M. John.

Funding Information:

AC02-76SF00515

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