首页> 外文会议>Society for Mining, Metallurgy and Exploration Annual Meeting and Exhibit >STORM WATER DRAINAGE FROM HYDROTHERMAL ALTERATION ZONES AND ITS IMPACT ON WATER QUALITY OF THE RED RIVER, NM
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STORM WATER DRAINAGE FROM HYDROTHERMAL ALTERATION ZONES AND ITS IMPACT ON WATER QUALITY OF THE RED RIVER, NM

机译:来自水热改变区域的雨水排水及其对红河水质的影响,NM

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The Red River is located within the Sangre De Cristo Mountain Range in northern New Mexico. An approximate 12-mile segment of the river from the town of Red River to the village of Questa (Questa) includes several hydrothermal alteration zones. Alteration "scars" formed as a result of rapid chemical weathering and physical erosion of pyrite-rich hydrothermally altered rocks. Storm water runoff from the scar drainages contributes metal-laden, acidic water to the river and creates a visible plume of discolored water in the river. Acidic runoff reduces the river pH from 7 to the mid 3s for at least 2 hours during large storms and the low pH water continues downstream. Runoff from scar drainages increases some metal concentrations in the river from below chronic ecological criteria to as much as two orders of magnitude greater than acute ecological criteria, and results in acutely toxic conditions for macro-invertebrates. A general improvement in the river's water quality occurs downstream due to dilution from tributary inflow from non-mineralized watersheds, the natural buffering capacity of the river, and storm water controls at the Chevron Mining Inc. Questa mine.
机译:红河位于墨西哥北部的Sangre de Cristo山脉内。从红河镇到Questa(Questa)村的大约12英里河段包括几个水热改变区域。改变“疤痕”形成,由富含富含硫铁矿的水热改变的岩石的快速化学风化和物理侵蚀。来自疤痕排水的风暴水径流贡献金属覆盖,酸性水到河流,并在河里创造一个可见的羽毛。酸性径流在大型风暴期间将河流pH从7到3S减少至少2小时,低pH水在下游继续。来自疤痕排水的径流从低于慢性生态标准的河流中的一些金属浓度增加到两种数量级,比急性生态标准大,导致宏观无脊椎动物的急性毒性条件。由于从非矿化流域,河流的自然缓冲能力,雪佛龙矿业公司的自然缓冲能力稀释,河流水质的一般改善了下游。

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