Geochemical portray of the Pacific ridge using statistical techniques | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS

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  Geochemical portray of the Pacific ridge using statistical techniques

Type de publication:

Journal Article

Source:

Geochimica Et Cosmochimica Acta, Volume 74, Ticket 12, p.A373-A373 (2010)

ISBN:

0016-7037

Numéro d'accès:

ISI:000283941401122

Mots-clés:

UMR 7154 ; Géochimie et cosmochimie ; oceanic basalts; Pacific–Antarctic Ridge; mantle heterogeneity; Principal Component Analysis; Sr Nd Pb Hf isotopes

Résumé:

Samples collected during the PACANTARCTIC 2 cruise fill a sampling gap from 53° to 41° S along the Pacific Antarctic Ridge (PAR). Analysis of Sr, Nd, Pb, Hf, and He isotope compositions of these new samples is shown together with published data from 66°S to 53°S and from the EPR. The recent advance in analytical mass spectrometry techniques generates a spectacular increase in the number of multidimensional isotopic data for oceanic basalts. Working with such multidimensional datasets generates a new approach for the data interpretation, preferably based on statistical analysis techniques.