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
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