Hydrochemical processes in the alluvial aquifer of the Gwydir River (northern New South Wales, Australia)

Anna Mencio*, Josep Mas-Pla, Kathryn Korbel, Grant C. Hose

*Corresponding author for this work

Research output: Contribution to journalConference paper

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Abstract

The hydrochemistry of the Narrabri Formation, the shallow aquifer system of the alluvial fan of the Gwydir River (NSW, Australia), is analyzed to better understand the hydrogeological processes involved in aquifer recharge, and to set up future management options that preserve the quantity and quality of water resources. Results show that groundwater hydrochemistry in this alluvial aquifer is mainly controlled by silicate weathering and cation exchange. However, salt remobilization in specific sedimentary layers within this alluvial fan deposit may locally increase groundwater salinity. Mixing between stream leakage and aquifer groundwater controls the hydrochemistry of water resources and produces a decrease in its salinity, which is beneficial for human uses. (C) 2013 The Authors. Published by Elsevier B.V.

Original languageEnglish
Pages (from-to)570-573
Number of pages4
JournalProcedia earth and Planetary Science
Volume7
DOIs
Publication statusPublished - 2013
Event14th International Symposium on Water-Rock Interaction (WRI) - Avignon, France
Duration: 9 Jun 201314 Jun 2013

Bibliographical note

Copyright the Author(s) 2013. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • alluvial aquifer
  • sodium
  • hydrochemistry
  • Gwydir River

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