Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
AGE AND TECTONIC SIGNIFICANCE OF THE MAFIC DYKE SWARM IN THE KURUKTAGREGION, XINJIANG
Autore:
ZHANG ZC; GUO ZJ; LIU SW;
Indirizzi:
BEIJING UNIV,DEPT GEOL BEIJING 100871 PEOPLES R CHINA
Titolo Testata:
Acta geologica sinica
fascicolo: 1, volume: 72, anno: 1998,
pagine: 29 - 36
SICI:
1000-9515(1998)72:1<29:AATSOT>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Keywords:
DYKE SWARM; GEOCHEMISTRY; ISOCHRON AGE; PERMIAN; TIANSHAN MOUNTAINS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
Z.C. Zhang et al., "AGE AND TECTONIC SIGNIFICANCE OF THE MAFIC DYKE SWARM IN THE KURUKTAGREGION, XINJIANG", Acta geologica sinica, 72(1), 1998, pp. 29-36

Abstract

The mafic dykes are composed of a series of northwest-trending diabase in Kuokesu of the Kuruktag region, Xinjiang. Four whole-rock samplesof the mafic dykes in the region give an Ar-40 / Ar-36-K-40 / Ar-36 isochron age of 282 Ma with the initial Ar-40 / Ar-36 = 507. The characteristics of the major, trace and rare earth elements of the dyke rocks indicate that they belong to the calc-alkaline series and were emplaced in extensional structures at an intermediate depth of the crust. This shows that there was a large-scale extension in the Permian Period, which might be associated with the post-collisional extension of theancient Tianshan Mountains.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 12:11:29