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GEOREF RECORD

Site-specific P absorbency of ochre from acid mine-drainage near an abandoned Cu-S mine in the Avoca-Avonmore catchment, Ireland

O. Fenton, M. G. Healy, M. Rodgers and D. O. Huallachain
Site-specific P absorbency of ochre from acid mine-drainage near an abandoned Cu-S mine in the Avoca-Avonmore catchment, Ireland
Clay Minerals (March 2009) 44 (1): 113-123

Abstract

Acid mine-drainage from an abandoned Cu-S mine adit, located in the Avoca-Avonmore catchment in the southeast of Ireland, results in low-value ochre deposition. Ochre found on-site had similar physical (particle size 97.7% <2 mm and dry bulk density 0.8 g cm (super 3) ), but dissimilar maximum P-retention characteristics (16-21 g P kg (super -1) ) to coal-mining ochre found in the UK. Stereomicroscopy identified oolites and diatoms in the ochre that were indicative of acidic environments. X-ray diffraction showed Fe mineralogy consisting of goethite, jarosite and minor amounts of ferrihydrite. Investigations by inductively coupled plasma-mass spectrometry and bulk energy-dispersive spectroscopy showed potentially toxic concentrations of Fe, Zn, Pb, As and Cu. Rapid mobilization of metals occurred during P-adsorption tests, which makes Avoca ochre unsuitable for use in a surface-water environmental technology.


ISSN: 0009-8558
EISSN: 1471-8030
Coden: CLMIAF
Serial Title: Clay Minerals
Serial Volume: 44
Serial Issue: 1
Title: Site-specific P absorbency of ochre from acid mine-drainage near an abandoned Cu-S mine in the Avoca-Avonmore catchment, Ireland
Affiliation: Environmental Research Centre, Ireland
Pages: 113-123
Published: 200903
Text Language: English
Publisher: Mineralogical Society, London, United Kingdom
References: 33
Accession Number: 2010-023131
Categories: Environmental geologyGeochemistry of rocks, soils, and sediments
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables, 2 plates, sketch map
N51°30'00" - N55°19'60", W10°30'00" - W06°30'00"
Secondary Affiliation: National University of Ireland, IRL, Ireland
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201014
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