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Titolo:
The neodymium isotopic characteristic and geological significance of Kuokesu plagioclase amphibolites from the Kuruktag, Xinjiang, China
Autore:
Zhang, ZC; Guo, ZJ; Liu, SW; Zheng, HF;
Indirizzi:
Peking Univ, Dept Geol, Beijing 100871, Peoples R China Peking Univ Beijing Peoples R China 100871 ijing 100871, Peoples R China
Titolo Testata:
CHINESE SCIENCE BULLETIN
fascicolo: 23, volume: 43, anno: 1998,
pagine: 2001 - 2005
SICI:
1001-6538(199812)43:23<2001:TNICAG>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Keywords:
plagioclase amphibolite; Sm-Nd dating; Nd isotope geochemistry; Kuokesu;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Zhang, ZC Peking Univ, Dept Geol, Beijing 100871, Peoples R China Peking Univ Beijing Peoples R China 100871 71, Peoples R China
Citazione:
Z.C. Zhang et al., "The neodymium isotopic characteristic and geological significance of Kuokesu plagioclase amphibolites from the Kuruktag, Xinjiang, China", CHIN SCI B, 43(23), 1998, pp. 2001-2005

Abstract

The plagioclase amphibolites from Kuokesu area, Kuruktag, Xinjiang occur as enclaves embedded in the granodioritic gneiss. In the light of major elements and REE data, the parent rocks oi the plagioclase amphibolites belong-to weak-alkaline basalts. Their Nd model ages mainly range from 2 832 to 3 075 Ma. The seven plagioclase amphibolites yield a reasonable good isochronage of (828 +/- 86) Ma(2 sigma) with I-Nd = 0.510 981 +/- 82, epsilon(Nd)(t) = -11.5 +/- 1.6. Such a case shows the existence of great proportion of the Archaean mafic crustal basement on the Kuokesu area. The strong tectonic-thermal event at about 820 Ma made the Sm-Nd isotope of the metamorphic rocks homogenization. This event would be associated with the Tarim Movement.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 21:59:29