Mobility of rare-earth elements and copper during shear-zone-related retrograde metamorphism

  • Geoffrey de Jong Pottenbakkersdonk 9, 7326 PA Apeldoorn, the Netherlands
  • Jackie Rotherham Great Central Mines N.L., Melbourne, Australia
  • G. Neil Phillips Great Central Mines N.L., Melbourne, Australia
  • Patrick J. Williams National Key Centre in Economic Geology, Geology Department, James Cook University of North Queensland, Townsville Q 4811, Australia
Keywords: Australia, metadolites, Mt Isa Inlier, REE mobility, sodic-calcic alteration

Abstract

In Mid Proterozoic crystalline rocks of the Mount Isa Inlier, around Cloncurry, Australia, 2000 km2 of alteration and brecciation are the product of high-temperature (> 450 °C) concentrated saline solution activity. During retrogression, this fluid was locally responsible for mobility of V Y Nb and light rare-earth elements (15 x enrichment). Copper and S were leached during alteration and this may have been a significant source of components in nearby Cu-Au deposits. Similar rare-earth-element behaviour has been observed in the hematite breccias which host Cu-sulfides at the giant Olympic Dam Cu-Au deposit

Published
1998-01-01
How to Cite
Geoffrey de Jong, Jackie Rotherham, G. Neil Phillips, & Patrick J. Williams. (1998). Mobility of rare-earth elements and copper during shear-zone-related retrograde metamorphism. Netherlands Journal of Geosciences, 76, 311-319. Retrieved from https://njgjournal.nl/index.php/njg/article/view/12315
Issue
Volume 76 - 1997/1998
Section
Regular paper
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors contributing to Netherlands Journal of Geosciences retain copyright of their work, with first publication rights granted to the Netherlands
Journal of Geosciences Foundation. Read the journal's full Copyright- and Licensing Policy.