Rb, Sr, Nd and Sm concentrations in quartz
- Creators
-
Rossman, George R.
- Weiss, D.
-
Wasserburg, G. J.
- Other:
- Frey, F. A.
Abstract
The concentrations of Rb, Sr, Nd and Sm in quartz crystals from Crystal Peak, Colorado; Stewart Mine, California; Tomas Gonzaga, Minas Gerais, Brazil; and Coleman Mines, Arkansas, were determined by isotope dilution mass spectrometry. Concentrations ranged from: 1.17 to 177 ppb Rb; 3.26 to 1027 ppb Sr; 0.0159 to 0.48 ppb Sm; 0.127 to 2.81 ppb Nd. In the Brazilian crystal, concentrations of these elements were correlated with the amount of fluid inclusion water measured visually by turbidity and quantitatively with infrared adsorption spectroscopy. The highest Rb content was found for a crystal free of visible inclusions, indicating that small amounts of Rb can also occur in quartz itself. Rb and Sr contents are much lower in synthetic quartz grown commercially from the Arkansas quartz.
Additional Information
© 1987 Pergamon Journals Ltd. Received October 29, 1986; accepted in revised form June 8. 1987. Quartz crystals for this study were generously donated by R. H. Currier (Arcadia, CA). M E. Gray (Culver City, CA) and E. E. Simpson (Western Electric Products, N. Andover, MA). R. L. Barnes (AT&T, Bell Labs.), Edwin Roedder (USGS) and an anonymous referee provided helpful comments. Portions of this research were funded by NSF Grants EAR-8312882 and EAR-13098. Division Contribution No. 4265 (553).Additional details
- Eprint ID
- 37950
- DOI
- 10.1016/0016-7037(87)90286-9
- Resolver ID
- CaltechAUTHORS:20130415-151025244
- EAR-8312882
- NSF
- EAR-13098
- NSF
- Created
-
2013-04-15Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences
- Other Numbering System Name
- Lunatic Asylum Lab
- Other Numbering System Identifier
- 553