Newman, Sally and Stolper, Edward M. and Epstein, Samuel
(1986)
Measurement of water in rhyolitic glasses; calibration of an infrared spectroscopic technique.
American Mineralogist, 71
(11-12).
pp. 1527-1541.
ISSN 0003-004X.
https://resolver.caltech.edu/CaltechAUTHORS:20120820-152545298
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Abstract
A series of natural rhyolitic obsidians were analyzed for their total water contents by a vacuum extraction technique. The grain size of the crushed samples can significantly affect these analyses. Coarse powders must be used in order to avoid surface-correlated water. These analyses were used to calibrate infrared spectroscopic measurements of water in glass using several infrared and near-infrared absorption bands. We demonstrate that infrared spectroscopy can yield precise determinations of not only total dissolved water contents, but also the concentrations of individual H-bearing species in natural and synthetic rhyolitic glasses on spots as small as a few tens of micrometers in diameter.
| Item Type: | Article |
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| Additional Information: | © 1986 by the Mineralogical Society of America.
Manuscript received December 24, 1985; Manuscript accepted July 8, 1986.
The authors thank the following people for providing samples: A. T. Anderson, Jr., University of Chicago; I. S. E. Carmichael, University of California, Berkeley; T. Grove, Massachusetts Institute of Technology; K. Lapham, Arizona State University; H. Westrich, Sandia Laboratories; and M. Bursik and K. Sieh, California Institute of Technology. This study was supported by grant numbers EAR 83-3086 and EAR 84-17434 from the National Science Foundation and by DE-FG03-85ER13445 from the Department of Energy. This is contribution 4284 of the Division of Geological and Planetary Sciences, California Institute of Technology. |
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| Funders: | | Funding Agency | Grant Number |
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| NSF | EAR 83-3086 | | NSF | EAR 84-17434 | | Department of Energy (DOE) | DE-FG03-85ER13445 |
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| Other Numbering System: | | Other Numbering System Name | Other Numbering System ID |
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| Caltech Division of Geological and Planetary Sciences | 4284 |
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| Issue or Number: | 11-12 |
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| Record Number: | CaltechAUTHORS:20120820-152545298 |
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| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20120820-152545298 |
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| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
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| ID Code: | 33374 |
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| Collection: | CaltechAUTHORS |
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| Deposited By: |
Tony Diaz
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| Deposited On: | 21 Aug 2012 23:05 |
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| Last Modified: | 03 Oct 2019 04:09 |
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