Source and fate of inorganic soil contamination around the abandoned Phillips sulfide mine, hudson Highlands, New York
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Abstract
The abandoned Phillips sulfide mine in the critical Highlands watershed in New York has been shown to produce strongly acidic mine drainage (AMD) with anomalous metal contaminants in first-order streams that exceeded local water standards by up to several orders of magnitude (Gilchrist et al., 2009). The metal-sulfide-rich tailings also produce contaminated soils with pH < 4, organic matter < 2.5% and trace metals sequestered in soil oxides. A geochemical transect to test worst-case soil contamination showed that Cr, Co and Ni correlated positively with Mn, (r = 0.72, r= 0.89, r = 0.80, respectively), suggesting Mn-oxide sequestration and that Cu and Pb correlated with Fe (r = 0.76, r = 0.83, respectively), suggesting sequestration in goethite. Ubiquitous, yellow coating on the mine wastes, including jarosite and goethite, is a carrier of the metals. Geochemical and μ-SXRF analyses determined Cu to be the major soil contaminant. μ-SXRF also demonstrated that the heterogeneous nature of the soil chemistry at the micro-meter scale is self-similar to those in the bulk soil samples. Generally metals decreased, with some fluctuations, rapidly downslope through suspension of fines and dissolution in AMD leaving the area of substantial contamination << 0.5 km from the source.
Study Area
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Source and fate of inorganic soil contamination around the abandoned Phillips sulfide mine, hudson Highlands, New York |
Series title | Soil and Sediment Contamination |
DOI | 10.1080/15320383.2011.528712 |
Volume | 20 |
Issue | 1 |
Year Published | 2011 |
Language | English |
Description | 21 p. |
Larger Work Type | Article |
Larger Work Subtype | Journal Article |
Larger Work Title | Soil and Sediment Contamination |
First page | 54 |
Last page | 74 |
Country | United States |
State | New York |
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