| Autor: |
D. F. Strong, S. MacLeod-Kinsel, Stephan Hoernes, Russell S. Harmon, David R. M. Pattison |
| Rok vydání: |
1991 |
| Předmět: |
|
| Zdroj: |
Equilibrium and Kinetics in Contact Metamorphism ISBN: 9783642761478 |
| DOI: |
10.1007/978-3-642-76145-4_17 |
| Popis: |
Variations in stable isotope ratios can be particularly helpful in studying the origins of igneous rocks, as well as the fluid interactions that may accompany magma generation or which may occur during and after magma emplacement and solidification (see e.g., the recent review in Valley et al. 1986). In certain instances, and to certain extents, granitic magmas may inherit and preserve the isotopic composition of their source region (O’Neil and Chappel 1977; O’Neil et al. 1977; Chivas et al. 1982; Vidal et al. 1984; Hill et al. 1986). More commonly, mafic partial melts may interact with isotopically evolved crust during magma ascent through AFC-type processes which produce correlated stable-radiogenic isotope covariations within genetically related plutonic suites (Michard-Vitrac et al. 1980; Halliday et al. 1980; Clayburn et al. 1983; Fleck and Criss 1985). Finally, interaction with externally derived fluids at either magmatic or subsolidus stages can be an important process (Friedman et al. 1964; Forester and Taylor 1976,1977; Hildreth et al. 1984; Fourcade and Javoy 1985; Wickham and Taylor 1987; Bickle et al. 1988). |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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