Seawater-induced mobilization of trace metals from mackinawite-rich estuarine sediments

Title: Seawater-induced mobilization of trace metals from mackinawite-rich estuarine sediments
Creator: Wong, Vanessa; Johnston, Scott; Burton, Edward; Bush, Richard; Sullivan, Leigh; Slavich, Peter
Date: 2013
Type: Text; Journal article
Identifier: http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/99787
Identifier: vital:10422
Identifier: https://doi.org/10.1016/j.watres.2012.11.009
Identifier: ISSN:0043-1354
Abstract: Benthic sediments in coastal acid sulfate soil (CASS) drains can contain high concentrations (~1-5%) of acid volatile sulfide (AVS) as nano-particulate mackinawite. These sediments can sequester substantial quantities of trace metals. Because of their low elevation and the connectivity of drains to estuarine channels, these benthic sediments are vulnerable to rapid increases in ionic strength from seawater incursion by floodgate opening, floodgate failure, storm surge and seasonal migration of the estuarine salt wedge. This study examines the effect of increasing seawater concentration on trace metal mobilization from mackinawite-rich drain sediments (210-550
Publisher: Elsevier Ltd.
Relation: Water Research Vol. 47, no. 2 (2013), p. 821-832
Rights: This metadata is freely available under a CCO license
Subject: MD Multidisciplinary; Anoxic sediments; AVS; Mobilization; Sea-level rise; Trace metals
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