C13 and O18 compositions in some fresh-water carbonates associated with ultramafic rocks and serpentinites: Western United States
Geochimica et Cosmochimica Acta
By: J. R. O'Neil and I. Barnes
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Abstract
All carbonates associated with the ultramafic rocks and serpentinites of the western United States are shown by their stable isotope ratios to be of near-surface, low-temperature origin. These include vein materials that have been previously classified as hydrothermal. New laboratory and natural data were obtained on the equilibrium isotope relations between hydromagnesite and water. The origins of travertines in the ultramafic area are easily distinguished on the basis of their stable isotope ratios. The extremely heavy isotope ratios of nesquehonites suggest an intricate evaporating-film mechanism of formation.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | C13 and O18 compositions in some fresh-water carbonates associated with ultramafic rocks and serpentinites: Western United States |
| Series title | Geochimica et Cosmochimica Acta |
| DOI | 10.1016/0016-7037(71)90067-6 |
| Volume | 35 |
| Issue | 7 |
| Year Published | 1971 |
| Language | English |
| Publisher | Elsevier |
| Description | 11 p. |
| First page | 687 |
| Last page | 697 |
| Country | United States |
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