2014-01-30_REPORT - M1973021

• Permit No: M1973021
• IBM Index Class Name: Report
• Doc Date: 1/30/2014
• From: Jeremy Deuto
• To: DRMS
• Annual Report Year: 2013
• Permit Index Doc Type: Annual Fee/Report
• Email Name: PSH
• Media Type: D
• Archive: No

• Sta. 2 +90 to 3 +45 consisted of primarily of granitic and biotitic gneiss with minor,
localized pegmatite intrusions. Rocks observed within the highwall typically
exhibited medium high to high compressive strength (estimated) and very poor to
poor quality RQD. Two primary joint sets were evident. The first set exhibited a
strike ranging from 340 degrees to 10 degrees with dips ranging from 70 to 80
degrees. The spacing between of these joints varied, but was typically close to
moderate. The persistence of the joints was also widely variable, but ranged from
low to medium. Apertures of the joints were moderately open to open with slightly
rough to rough surfaces and were slightly weathered. The second primary joint set
exhibited a strike ranging from 300 degrees to 310 degrees with dips ranging from
75 degrees to 85 degrees. This joint set had similar properties to primary joint set
1— very poor to poor quality RQD, close to moderately spaced joints, low to
medium persistence, moderately open to tight joint apertures, and slightly rough to
rough rock surfaces, and slight weathering. Foliations exhibited a strike ranging
from 280 to 340 degrees with dips ranging from 15 to 35 degrees. The spacing
between of the foliation varied, but was typically very close to close. The
persistence of the foliation was also widely variable, but ranged from medium to
high. Apertures of the foliation were very tight to open with slightly rough to
rough surfaces and were slightly weathered. In this section, foliations were
observed to be locally adversely dipping.
• Two secondary joint sets were present within the Haul Road Highwall 7260 — 7175
from Sta. 2 +90 to 3 +45. The first set exhibited a strike of 260 degrees with an
approximate dip of 60 degrees. The spacing between of these joints varied, but was
typically wide. The persistence of the joints was also widely variable but was
typically low to medium. Apertures of the joints were open with slightly rough to
rough faces and were slightly weathered. The second set exhibited a strike ranging
close to 330 degrees with dips of approximately 30 degrees. The spacing between
of these joints was variable, but was typically wide. The persistence of the joints
was also widely variable but was typically low to medium. Apertures of the joints
were tight with slightly rough to rough faces and were slightly weathered.
Small blocks may form in this area due to the orientation of the highwall and joint sets of the
rock. In addition, due to the fractured nature of the rock and highwall weathering, raveling of
small to medium sized rocks can also be expected. These rocks resulting from block
formation and raveling are anticipated to be limited in size, and should be retained on the
bench below the highwall and only cause local operational delays.
• Sta. 3 +45 to 6 +20 consisted of primarily of granitic and biotitic gneiss with minor,
localized pegmatite intrusions. Rocks observed within the highwall typically
exhibited medium high to high compressive strength (estimated) and very poor
quality RQD. Two primary joint sets were evident. The first set exhibited a strike
ranging from 180 degrees to 350 degrees with dips ranging from 70 to 90 degrees.
The spacing between of these joints varied, but was typically close. The
GEI Consultants, Inc. 13 January 2014
2013 Morrison Quarry Annual Report