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

widely variable, but ranged from low to medium. Apertures of the joints were
moderately open to tight with slightly rough to rough surfaces and were
moderately to slightly weathered. The second primary joint set exhibited a strike
ranging from 270 degrees to 275 degrees with dips ranging close to 90 degrees.
This joint set had similar properties to primary joint set 1— poor to very poor RQD,
moderately spaced joints, low to medium persistence, moderately open to tight
joint apertures, and slightly rough to rough rock surfaces, and moderate to slight
weathering. Foliations exhibited a strike ranging from 180 degrees to 230 degrees
with dips ranging from 55 degrees to 75 degrees. The spacing between of the
foliation varied, but was typically moderate to close. The persistence of the
foliation was also widely variable, but ranged from medium to high. Apertures of
the foliation were very moderately open to tight with slightly rough to rough
surfaces and were moderately to 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 +20 to 4 +60 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 poor quality
RQD. The trend of the highwall was 355 (north 5 degrees west). Two primary joint
sets were evident. The first set exhibited a strike ranging from 0 degrees to 180
degrees with dips ranging from 75 to 85 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
open to moderately open with slightly rough to rough surfaces and were highly to
moderately weathered. The second primary joint set exhibited a strike ranging
from 75 degrees to 275 degrees with dips ranging from 80 degrees to 90 degrees.
This joint set had similar properties to primary joint set 1— poor quality RQD,
moderately spaced joints, low to medium persistence, open to moderately open
joint apertures, and slightly rough to rough rock surfaces, and high to moderate
weathering. Foliations exhibited a strike ranging from 195 degrees to 350 degrees
with dips ranging from 10 degrees to 70 degrees. The spacing between of the
foliation varied, but was typically close to moderate. The persistence of the
foliation was also widely variable, but ranged from medium to high. Apertures of
the foliation were very open to tight with slightly rough to rough surfaces and were
highly to moderately 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
GEI Consultants, Inc. 17 January 2014
2013 Morrison Quarry Annual Report