A National ASS Demonstration Project

Re-establishment of tidal inundation at East Trinity has led to:

  • Major improvements in surface water quality of tidal estuarine creeks
  • Large decreases in acidity and exchangeable Al of former sulfuric soils
  • Reformation of pyrite and other reduced inorganic S species in former sulfuric soils
  • Large-scale reductive dissolution of secondary Fe minerals (e.g. jarosite)
  • Enhanced surface accumulation of reactive Fe(III) minerals (e.g. schwertmannite)
  • Reductive mobilisation of As in soil porewaters

Strategic research has been conducted which explains how, where, and most importantly - why - these environmentally relevant changes have occurred across the landscape.

These three data sets support the findings of this project.

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Collections from 2014

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Enrichment and heterogeneity of trace elements at the redox-interface of Fe-rich intertidal sediments, Annabelle F. Keene, Scott G. Johnston, Richard T. Bush, Edward D. Burton, Leigh A. Sullivan, Matthew Dundon, Angus E. McElnea, C Doug Smith, Col R. Ahern, Bernard Powell, and Environmental Analysis Laboratory Southern Cross University

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Geochemical properties of acid sulfate soils collected from the East Trinity coastal wetland, Cairns 2013, Nicholas J. Ward, Troy Shepherd, Richard T. Bush, Southern Cross Geoscience, and Environmental Analysis Laboratory Southern Cross University

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Changes in the surface water chemistry at low tide in drainage channels at East Trinity coastal wetland, Cairns (August 2013), Nicholas J. Ward, Troy Shepherd, Richard T. Bush, Zhaohui Wang, Queensland Department of Science Information Technology Innovation and the Arts (DSITIA), and Environmental Analysis Laboratory Southern Cross University