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Hydrothermal systems associated with regional metamorphism and crustal anatexis; example from the Pyrenees, France

Wickham, Stephen M. and Taylor, Hugh P., Jr. (1990) Hydrothermal systems associated with regional metamorphism and crustal anatexis; example from the Pyrenees, France. In: The Role of fluids in crustal processes. National Academy Press , Washington, DC, pp. 96-112. ISBN 9780309040372.

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Our understanding of the transport of fluids through the deeper parts of the crust, and in particular through rocks undergoing prograde regional metamorphism, is at an embryonic stage. This stems largely from the difficulty of making direct observations of such processes, in contrast to the situation in active shallow hydrothermal systems (which are accessible to study in boreholes). Stable isotope (^(18)O/^(16)O, ^(13)C/^(12)C, and D/H) studies of metamorphic and igneous rocks and minerals may, however, be used to place constraints on the passage of H_2O- and CO_2-rich fluids through the crust. Oxygen, hydrogen, and carbon are major constituents of both rocks and typical crustal fluids, and these three elements show systematic differences in isotopic composition in the different terrestrial reservoirs.

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Additional Information:© 1990 National Academy Press. Financial support for this work was provided by NSF grant no. EAR-8313106. We are grateful to M. J. Bickle, H. J. Chapman, and Ron Oxburgh for their collaboration and help on these problems. Discussions with Denis Norton and Steve Sparks were also very helpful. This is contribution no. 4442, Division of Geological and Planetary Sciences, California Institute of Technology.
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Caltech Division of Geological and Planetary Sciences4442
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ID Code:38454
Deposited By: Tony Diaz
Deposited On:20 Sep 2013 20:19
Last Modified:03 Oct 2019 04:57

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