Possible compositional differences between Archean and Post Archean granulite terranes based on discriminant analysis
Identifieur interne : 001144 ( Main/Exploration ); précédent : 001143; suivant : 001145Possible compositional differences between Archean and Post Archean granulite terranes based on discriminant analysis
Auteurs : S. Yong [République populaire de Chine] ; J. H. Bourne [Canada]Source :
- Mineralogy and Petrology [ 0930-0708 ] ; 1995-09-01.
Abstract
Summary: An average chemical composition is proposed for granulite terranes of the lower continental crust based on a data base of 1685 analyses of granulite facies rocks. Both Archean and Post-Archean granulites are included in the file. Discriminant analysis was used to study possible compositional differences between Archean and Post-Archean granulites. Results show no convincing difference between the two age groups using major elements, the REE, or a combination of (K2O, U, Th, Rb and Ba) however a combination of (Cr, Ni, Zr, Nb, V and Co) is promising. The main constraint is the limited number of chemical analyses which contain all the elements of each combination and the difficulty of evaluating the fundamental requirements for use of discriminant analysis which would permit more numerical methods of analyzing the results to be applied.
Url:
DOI: 10.1007/BF01162860
Affiliations:
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Both Archean and Post-Archean granulites are included in the file. Discriminant analysis was used to study possible compositional differences between Archean and Post-Archean granulites. Results show no convincing difference between the two age groups using major elements, the REE, or a combination of (K2O, U, Th, Rb and Ba) however a combination of (Cr, Ni, Zr, Nb, V and Co) is promising. The main constraint is the limited number of chemical analyses which contain all the elements of each combination and the difficulty of evaluating the fundamental requirements for use of discriminant analysis which would permit more numerical methods of analyzing the results to be applied.</div></front></TEI><affiliations><list><country><li>Canada</li><li>République populaire de Chine</li></country><region><li>Québec</li></region><settlement><li>Montréal</li></settlement><orgName><li>Université du Québec à Montréal</li></orgName></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Yong, S" sort="Yong, S" uniqKey="Yong S" first="S." last="Yong">S. Yong</name></noRegion></country><country name="Canada"><region name="Québec"><name sortKey="Bourne, J H" sort="Bourne, J H" uniqKey="Bourne J" first="J. H." last="Bourne">J. H. Bourne</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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