Unexpected hydrologic perturbation in an abandoned underground coal mine: Response to surface reclamation?
Environmental Geology and Water Sciences
By: D. Harper, G.A. Olyphant, and E.J. Hartke
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Abstract
A reclamation project at the abandoned Blackhawk Mine site near Terre Haute, Indiana, lasted about four months and involved the burial of coarse mine refuse in shallow (less than 9 m) pits excavated into loess and till in an area of about 16 ha. An abandoned flooded underground coal mine underlies the reclamation site at a depth of about 38 m; the total area underlain by the mine is about 10 km2. The potentiometric levels associated with the mine indicate a significant (2.7 m) and prolonged perturbation of the deeper confined groundwater system; 14 months after completing reclamation, the levels began to rise linearly (at an average rate of 0.85 cm/d) for 11 months, then fell exponentially for 25 months, and are now nearly stable. Prominent subsidence features exist near the reclamation site. Subsidence-related fractures were observed in cores from the site, and such fractures may have provided a connection between the shallower and deeper groundwater systems. ?? 1990 Springer-Verlag New York Inc.
Suggested Citation
Harper, D., Olyphant, G., and Hartke, E., 1990, Unexpected hydrologic perturbation in an abandoned underground coal mine: Response to surface reclamation?: Environmental Geology and Water Sciences, v. 15, no. 3, p. 179-187, https://doi.org/10.1007/BF01706409.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Unexpected hydrologic perturbation in an abandoned underground coal mine: Response to surface reclamation? |
| Series title | Environmental Geology and Water Sciences |
| DOI | 10.1007/BF01706409 |
| Volume | 15 |
| Issue | 3 |
| Year Published | 1990 |
| Language | English |
| Publisher location | Springer-Verlag |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Environmental Geology and Water Sciences |
| First page | 179 |
| Last page | 187 |