Acid drainage from abandoned metal mines in the Patagonia Mountains of southern Arizona

Persistent Link:
http://hdl.handle.net/10150/191766
Title:
Acid drainage from abandoned metal mines in the Patagonia Mountains of southern Arizona
Author:
Dean, Sheila Ann.
Issue Date:
1982
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The Patagonia Mountains were mined intermittently from the 1600's to 1949 primarily for silver, lead, and zinc. A baseline study in the ephemeral streams revealed pH measurements ranging from 2.9 to 4.2 directly below three sampled mines. Drainage from tailings contained high concentrations of sulfate, iron, and manganese, while recommended levels for zinc, copper, arsenic, lead, chromium, and cadmium were also exceeded. Water quality improved to varying degrees downstream. However, lead, manganese, iron, and arsenic remained above drinking water standards 2.6 km downstream from a major mine. A 9-hour, 2.3 cm. winter rainstorm was estimated to have released 718 kg of sulfate, 60 kg of iron, and 28 kg of manganese from the study watershed. Most soils analyses of tailings were qualitatively comparable to downstream water chemistry. Trench Mine tailings and drainage contained the highest sulfate and metal levels; reclamation possibilities and a more complete ground water study were considered.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Mines and mineral resources -- Patagonia Mountains (Ariz. and Mexico); Water -- Pollution -- Patagonia Mountains (Ariz. and Mexico); Tailings (Metallurgy)
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Renewable Natural Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Fogel, Martin M.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleAcid drainage from abandoned metal mines in the Patagonia Mountains of southern Arizonaen_US
dc.creatorDean, Sheila Ann.en_US
dc.contributor.authorDean, Sheila Ann.en_US
dc.date.issued1982en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe Patagonia Mountains were mined intermittently from the 1600's to 1949 primarily for silver, lead, and zinc. A baseline study in the ephemeral streams revealed pH measurements ranging from 2.9 to 4.2 directly below three sampled mines. Drainage from tailings contained high concentrations of sulfate, iron, and manganese, while recommended levels for zinc, copper, arsenic, lead, chromium, and cadmium were also exceeded. Water quality improved to varying degrees downstream. However, lead, manganese, iron, and arsenic remained above drinking water standards 2.6 km downstream from a major mine. A 9-hour, 2.3 cm. winter rainstorm was estimated to have released 718 kg of sulfate, 60 kg of iron, and 28 kg of manganese from the study watershed. Most soils analyses of tailings were qualitatively comparable to downstream water chemistry. Trench Mine tailings and drainage contained the highest sulfate and metal levels; reclamation possibilities and a more complete ground water study were considered.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshMines and mineral resources -- Patagonia Mountains (Ariz. and Mexico)en_US
dc.subject.lcshWater -- Pollution -- Patagonia Mountains (Ariz. and Mexico)en_US
dc.subject.lcshTailings (Metallurgy)en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineRenewable Natural Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairFogel, Martin M.en_US
dc.contributor.committeememberFfolliott, Peter F.en_US
dc.contributor.committeememberWilson, Lorne G.en_US
dc.identifier.oclc228025353en_US
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