Geology Reference
In-Depth Information
Q
N1
Alkylated
PAHs
A
N2
Plant waxes
High-volatile
bituminous A coal
Breathitt Formation
Hazard Bed No. 7
Perry County, KY
KY 4530
Q
N3
N4
Q
Q
B
Q
Carbonized coal
Site 1
Breathitt Formation
Hazard Bed No. 7
Perry County, KY
P0
PY0
C0
BAP
GHI
N0
Q
Q
C
Q
Carbonized coal
Site 2
Breathitt Formation
Hazard Bed No. 7
Perry County, KY
Q
Q
D
Q
Coal tar
Vent 1
Breathitt formation
Hazard Bed No. 7
Perry County, KY
Q
Distillate
E
Pitch
Coal tar
Vent 5
Breathitt formation
Hazard Bed No. 7
Perry County, KY
Q
Q
Retention time
Figure 11.4.1. GC/FID fingerprints of coal and natural coal tars associated with coal fires in the Breathitt
Formation, Kentucky: (A) high-volatile bituminous coal from the Breathitt Formation consists of alkylated
PAHs, partially reformed plant waxes, and complex mixtures of other hydrocarbons, (B) and (C) coal samples
from the fire zone predominantly contain heavy three- to six-ring PAHs, (D) a coal-tar residue collected around
surface vent 1 contains heavy PAHs similar to the coal at depth, and (E) a coal-tar residue collected around surface
vent 5 contains the heavy PAHs plus lighter two- to three-ring PAHs representing the distillate fraction of coal tar.
