Geology Reference
In-Depth Information
Figure 16.4.3. Anomalous snowmelt at the Carbondale mine-fire site
.
From Kim and Chaiken 1993, p. 23.
Large
The mine fire near Large in Allegheny County, Pennsylvania is in the Pittsburgh coal seam, which, at this location,
outcrops at the base of a hill. Approximate depth of overburden ranges from 6 to 55m. Small vents were visible on
the hillside above the buried outcrop. The surface area affected by the mine fire is ~1 ha, and the slope averages
20°. Five natural gas pipelines and three sets of high-voltage power lines cross the property. Areas of venting were
confined to a relatively small surface area and indicated propagation along the buried outcrop. Temperature
monitoring indicated that large areas of the mine were heated but did not define a combustion zone (Kim and
Dalverny, 1994).
22 T
32 T
33 T
34 T
21 T
4
2
11
20 T
1
3
6
5
7
8
14 T
9
10
15 T
23 T
19 T
24 T
28 T
31 T
13 T
25 T
20 T
10 T
17 T
16 T
Apartment
building
Apartment
building
Apartment
building
27 T
12 T
0
50
100
30 T
29 T
Scale, ft
Key
Heated zones
Cold zones
Boreholes
Figure 16.4.4. Map of the Carbondale mine-fire site, showing the location of two large and five small heated
areas. From Kim et al. 1992, p. 15
.
Search WWH ::




Custom Search