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Eclogites radiogenic isotopes

The Archean age of the eclogite xenolith suites that have clear crustal signatures in their elemental, stable and radiogenic isotope compositions... [Pg.949]

Viljoen K. S., Smith C. B., and Sharp Z. D. (1996) Stable and radiogenic isotope study of eclogite xenohths from the Orapa kimberhte, Botswana. Chem. Geol. 131, 235—255. [Pg.976]

A number of eclogites have both radiogenic neodymium isotopes and radiogenic strontium relative to bulk Earth. For these samples, some of the Sr/ Sr values exceed modem and Archean seawater compositions (see Chapter 6.17). Hence, in a subduction-type model, the radiogenic strontium isotopic composition of the eclogite protohth is not solely inherited from oceanic cmst but is likely to be a time-integrated response to Rb/Sr enrichment during hydrothermal alteration... [Pg.947]

See other pages where Eclogites radiogenic isotopes is mentioned: [Pg.187]    [Pg.122]    [Pg.946]    [Pg.1574]    [Pg.244]    [Pg.924]    [Pg.947]    [Pg.947]    [Pg.948]    [Pg.948]    [Pg.948]    [Pg.1564]    [Pg.1566]    [Pg.222]    [Pg.245]    [Pg.245]    [Pg.246]    [Pg.246]    [Pg.246]    [Pg.65]   
See also in sourсe #XX -- [ Pg.221 ]



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