Fault surface is almost vertical
platform set for drilling
Looking east
Notice smoothness of fault surface.
The soft volcanics north of the fault have been
eroded prior to ground collapse
Looking at greywacke south of the Sladen
Fault
Ground north of the fault has collapsed revealing
a drift on the first level plus a crosscut above
Looking at the first level of the east Malartic mine.
It has been exposed because the ground north of the
Sladen Fault has collapsed due to mining activities
Preparation for mining. Drilling in greywacke
Crosscut prior to drilling
Massive, blocky greywacke next to Sladen Fault
Mining of greywacke will start from west to east
After first blast. Crosscut still visible on the face
After second blast: Crosscut mined out
Only part of 1st level drift still remains
Face of greywacke after several blasts. Notice foliation parallel to fault
Huge block of greywacke breaks off & slides
Same block of greywacke from another angle
Greywacke breaks off in huge blocks
Part of the greywacke zone mined out
Not much left
Unmineralized greywacke behind ore zone
About 6 m of overburden
Just north of the Sladen Fault.
Lighter porphyry with darker mafic volcanics
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