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 http://resolver.caltech.edu/CaltechAUTHORS:20120820-152545298
![[img]](http://authors.library.caltech.edu/style/images/fileicons/application_pdf.png)
|
PDF
- Published Version
See Usage Policy. 10Mb |
Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20120820-152545298
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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 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. | ||||||||
| Funders: |
| ||||||||
| Other Numbering System: |
| ||||||||
| Record Number: | CaltechAUTHORS:20120820-152545298 | ||||||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20120820-152545298 | ||||||||
| Related URLs: | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
| ID Code: | 33374 | ||||||||
| Collection: | CaltechAUTHORS | ||||||||
| Deposited By: | Tony Diaz | ||||||||
| Deposited On: | 21 Aug 2012 23:05 | ||||||||
| Last Modified: | 26 Dec 2012 16:01 |
Repository Staff Only: item control page
