2013, English, Book, Illustrated edition: Neodymium depleted mantle model age map of Australia : explanatory notes and user guide / David Champion. Champion, D. C. (David C.), 1962-, (author.)

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Neodymium depleted mantle model age map of Australia : explanatory notes and user guide / David Champion
 
Bookmark: http://trove.nla.gov.au/version/206479500
Physical Description
  • 1 online resource : colour illustrations, colour maps.
Published
  • Canberra Geoscience Australia, [2013]
Language
  • English

Edition details

Title
  • Neodymium depleted mantle model age map of Australia : explanatory notes and user guide /​ David Champion.
Author
  • Champion, D. C. (David C.), 1962-, (author.)
Other Authors
  • Geoscience Australia (issuing body)
Published
  • Canberra Geoscience Australia, [2013]
Content Types
  • text
Carrier Types
  • online resource
Physical Description
  • 1 online resource : colour illustrations, colour maps.
Series
Subjects
Summary
  • "A database of Sm-Nd isotopic data, and associated metadata, for >2650 samples of Australian rocks was compiled from published and unpublished sources. This included location, unit, geochronology and bibliographic data and metadata for all data points; this dataset is available for download at www.ga.gov.au. Data were compiled for a range of lithologies, including felsic and mafic igneous rocks, sedimentary rocks, as well as some mineral data. Just over 1630 of these data points were from felsic igneous rocks which had reliable locational details and a reasonable estimated or known magmatic age. A comparison of the magmatic ages from these samples with compilations of Australian igneous rock ages showed a generally good agreement confirming the representative nature of the compiled Nd data set". --Online abstract.
Contents
  • Executive summary
  • 1. Introduction
  • 2. Isotopic tracers and Samarium-Neodymium
  • 2.1. Introduction
  • 2.2. Sm-Nd isotopes : a review
  • 2.3. Sm-Nd behaviour
  • 2.4. Model ages
  • 2.5. What do model ages actually represent?
  • 2.6. Secular and geographic changes in isotopic signatures
  • 3. T2DM maps of Australia
  • 3.1. Introduction
  • 3.2. General picture
  • 3.3. Crustal elements
  • 4. Revised crustal growth curve for Australia
  • 4.1. Australian Nd growth curves versus the magmatic record
  • 4.2. Comparisons with world crustal growth curves
  • 4.3. Crustal growth in Australia and age of basement blocks
  • 5. Mineralisation
  • 5.1. Introduction
  • 5.2. Lessons from the Yilgarn Craton
  • 5.3. Lessons from the Gawler Craton
  • 5.4. Granite-related mineralisation
  • 5.5. General comments
  • 6. Conclusions and future work
  • 6.1. Conclusions
  • 6.2. Future work
  • 6.3. The problem of sediments
  • 7. Acknowledgements
  • Appendix A. Compiled Sm-Nd isotopic data and metadata
  • Appendix B. Tables of Nd data
  • Appendix C. Bibliography for compiled isotopic and geochronological data
  • Appendix D. Calculating a crustal growth curve for Australia using Nd model age data
  • Appendix E. T2DM images Including S-type granites.
Notes
  • Title from pdf title page.
  • Available from the website of Geoscience Australia at: www. ga.gov.au (Viewed 6 February 2014). Additional data files also available.
  • "GeoCat 77772 ; Version: 1310".
Technical Details
  • System requirements: Internet connectivity, Web browser, Adobe Acrobat reader.
Language
  • English
ISBN
  • 9781922201799
Libraries Australia ID
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Libraries Australia

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