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

ranging from 85 to 90 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 medium. Apertures of the joints were moderately open to 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 +80 to 4 +50 of Scanline A was not mappable due to overburden, mine waste,
and /or rockfall obscuring the wall. However, it is assumed the highwall conditions
are similar to adjacent observable /mappable sections. The trend of the highwall
was 0 degrees (north 0 degrees east).
• Sta. 4 +50 to 5 +50 of Scanline A was not mappable due to overburden, mine waste,
and /or rockfall obscuring the wall. However, it is assumed the highwall conditions
are similar to adjacent observable /mappable sections. The trend of the highwall
was 90 (north 90 degrees east).
Figure 17 presents a photo documentary of Bench 6640 Scanline A.
3.3.8.2 Scanline B
Sta. 0 +00 to 1 +10 of Scanline B was not mappable due to overburden, mine waste,
and/or rockfall obscuring the wall. However, it is assumed the highwall conditions
are similar to adjacent observable /mappable sections. The trend of the highwall
was 90 degrees (north 90 degrees east).
Sta. 1 +10 to 2 +45 of Scanline B consisted of primarily of granitic and biotitic
gneiss with localized pegmatite intrusions. Rocks observed within the highwall
typically exhibited medium high to high compressive strength (estimated) and very
poor quality RQD. The trend of the highwall was 090 (north 90 degrees east). Two
primary joint sets were evident. The first set exhibited a strike ranging from 70
degrees to 105 degrees with dips ranging from 85 to 90 degrees. The spacing
between of these joints varied, but was typically moderate to wide. The persistence
of the joints was also widely variable, but was typically low. Apertures of the
joints were tight to moderately open with slightly rough to rough surfaces and were
highly weathered. The second primary joint set exhibited a strike ranging from 160
degrees to 170 degrees with dips ranging from 80 degrees to 85 degrees. This joint
set had similar properties to primary joint set 1— very poor to poor quality RQD,
moderate to wide spaced joints, low persistence, moderately open to tight joint
apertures, and slightly rough to rough rock surfaces, and high weathering.
Foliations exhibited a strike ranging from 0 degrees to 340 degrees with dips
GEI Consultants, Inc 21 January 2014
2013 Morrison Quarry Annual Report