Geology Reference
In-Depth Information
Dominant joint set
Fault zone
Figure B1-2.2 Exposure of brecciated and clay-in
lled feature through mostly moderately and slightly
weathered volcanic rock and with very different orientation to most other rock joints.
statistical elimination of rare but important discontinuities from analysis, as discussed earlier, but
exacerbated by poor communication. The design engineers and checkers might not have been alerted
by the unfamiliar terminology (tectonically in
uenced) used by the logging geologist; they should have
been more concerned if they had been warned directly that there was an adversely oriented fault dipping
out of the slope.The feature was identi
ed during construction, but failure occurred before remedial
