TRACE-ELEMENT ZONING IN CLINOPYROXENES FROM SPINEL PERIDOTITE XENOLITHS

Authors
GREIG A SIE SH NICHOLLS IA
Citation
A. Greig et al., TRACE-ELEMENT ZONING IN CLINOPYROXENES FROM SPINEL PERIDOTITE XENOLITHS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 75(1-4), 1993, pp. 411-414
Citations number
11
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
75
Issue
1-4
Year of publication
1993
Pages
411 - 414
Database
ISI
SICI code
0168-583X(1993)75:1-4<411:TZICFS>2.0.ZU;2-5
Abstract
The excellent spatial resolution of the proton microprobe allows trace element zoning profiles to be determined within single grains of mant le minerals. Analyses of clinopyroxenes from two spinel peridotite xen oliths from the young basaltic volcanic field of the Western Districts of Victoria show they have pronounced zoning in Ti, Zr and Sr. These zoning profiles demonstrate that regions of the lithospheric mantle ha ve undergone recent metasomatism by infiltrating basaltic melts result ing in enrichment in Ti, Zr and Sr.