Precise U–Pb mineral ages, Rb–Sr and Sm–Nd systematics for the Great Dyke, Zimbabwe—constraints on late Archean events in the Zimbabwe craton and Limpopo belt
Autor: | Thomas Oberthür, Donald W. Davis, Thomas G. Blenkinsop, Axel Höhndorf |
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Rok vydání: | 2002 |
Předmět: | |
Zdroj: | Precambrian Research. 113:293-305 |
ISSN: | 0301-9268 |
DOI: | 10.1016/s0301-9268(01)00215-7 |
Popis: | U–Pb dating of zircon and rutile from bronzitites of the P1 pyroxenite layer of the Great Dyke precisely constrains the crystallization age of this part of the intrusion to 2575.4±0.7 Ma. Whole rock Rb–Sr and Sm–Nd data of various rock types sampled along the entire length of the Great Dyke record inhomogeneous initial isotope ratios, and also later ( |
Databáze: | OpenAIRE |
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