Skip Navigation



Journal of Petrology Advance Access published online on February 25, 2005
Journal of Petrology, doi:10.1093/petrology/egi017
This Article
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
46/6/1283    most recent
egi017v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by STORKEY, A. C.
Right arrow Articles by BUICK, I. S.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author (2005). Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oupjournals.org
Received January 25, 2004
Accepted January 20, 2005

Article

Using In Situ Trace-Element Determinations to Monitor Partial-Melting Processes in Metabasites

A. C. STORKEY 1, J. HERMANN 2, M. HAND 3, and I. S. BUICK 4*

1 DEPARTMENT OF EARTH SCIENCES, LA TROBE UNIVERSITY, BUNDOORA, VIC 3086, AUSTRALIA
2 RESEARCH SCHOOL OF EARTH SCIENCES, AUSTRALIAN NATIONAL UNIVERSITY, CANBERRA, ACT 0200, AUSTRALIA
3 DEPARTMENT OF GEOLOGY AND GEOPHYSICS, UNIVERSITY OF ADELAIDE, ADELAIDE, SA 5005, AUSTRALIA
4 SCHOOL OF GEOSCIENCES, MONASH UNIVERSITY, CLAYTON, VIC 3800, AUSTRALIA

* To whom correspondence should be addressed.
I. S. BUICK, E-mail: Ian.Buick{at}sci.monash.edu.au


  Abstract

Peak metamorphism (~800-850°C, 8-10 kbar) in the Harts Range Meta-Igneous Complex (Harts Range, central Australia) was associated with localized partial melting by the reaction hornblende + plagioclase + quartz + H2O = garnet + clinopyroxene + titanite + melt. In situ trace-element determinations of prograde, peak and retrograde minerals in migmatitic metabasites and associated tonalitic melts using laser-ablation ICP-MS has allowed monitoring of a range of partial-melting processes (melting, melt segregation and back-reaction between crystallizing melt and restitic minerals). Mass balance calculations indicate that titanite is a major carrier of trace elements such as Ti, Nb, Ta, Sm, U and Th, and therefore may be an important accessory phase to control the redistribution of these elements during the partial melting of amphibolites. Titanite preferentially incorporates Ta over Nb and, hence, residual titanite might assist in the formation of melts with high Nb/Ta. The fact that single minerals record different rare earth element (REE) patterns, from prograde to peak to retrograde conditions, demonstrates that REE diffusion is not significant up to ~800°C. Therefore, trace-element analysis in minerals can be a powerful tool to investigate high-grade metamorphic processes beyond the limits given by major elements.

Keywords: Harts Range; laser-ablation ICP-MS; metabasites; partial melting; trace elements.
Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 Eur J MineralHome page
C. Villaseca, D. Orejana, B. A. Paterson, K. Billstrom, and C. Perez-Soba
Metaluminous pyroxene-bearing granulite xenoliths from the lower continental crust in central Spain: their role in the genesis of Hercynian I-type granites
European Journal of Mineralogy, July 1, 2007; 19(4): 463 - 477.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
D. RUBATTO, J. HERMANN, and I. S. BUICK
Temperature and Bulk Composition Control on the Growth of Monazite and Zircon During Low-pressure Anatexis (Mount Stafford, Central Australia)
J. Petrology, October 1, 2006; 47(10): 1973 - 1996.
[Abstract] [Full Text] [PDF]


Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.