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2012-10-01_REVISION - M1977248 (3)
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2012-10-01_REVISION - M1977248 (3)
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Last modified
6/15/2021 2:25:47 PM
Creation date
10/10/2012 7:54:23 AM
Metadata
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Template:
DRMS Permit Index
Permit No
M1977248
IBM Index Class Name
REVISION
Doc Date
10/1/2012
Doc Name
JD-5 Uranium Mine Environmental Report
From
Gold Eagle Mining Inc.
To
DRMS
Type & Sequence
AM1
Media Type
D
Archive
No
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- 17 - <br />solution, it is likely that some of the faults are currently active. <br />However, it is not likely that the faults are capable of generating <br />large earthquakes. Slow fault creep is probably the predominant <br />current deformation mechanism. Our study in the vicinity of the JD-5 <br />lease indicates that many of the fault zones in that area can be <br />traced into the overlying landslide deposits. <br />Cater (1970) indicates that a northwest trending high angle <br />normal fault is located along the axis of the Paradox Valley <br />anticline. The Paradox Valley fault is one of a series of northwest <br />trending faults in the salt anticline region which have apparently <br />determined the location of the anticlines. The Paradox Valley fault <br />has displaced pre - Paradox rock about 5,000 feet. Regional studies of <br />geophysical data and deep exploratory holes indicate that displace- <br />ments of pre - Paradox rook exist on the northwest trending faults with <br />no corresponding displacement of post- Paradox rocks, Cater (1970). <br />Based on the available geologic evidence, it is our opinion that the <br />pre Paradox fault underlying the Paradox Valley is not likely to be a <br />causative fault in evaluating earthquake exposure. <br />In evaluating the degree of earthquake exposure for the proposed <br />uranium leaching plant and subsurface waste rock disposal site, both <br />the short term operational exposure and the long term post -operation <br />exposure should be considered. Since the operation will be relatively <br />short - lived, approximately 15 years, it is our opinion that seismic <br />history of the region closely represents the expected short term <br />exposure. Nearby historic earthquakes of engineering significance are <br />
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