Bedrock Geology Of The Northern Schell Creek Range White Pine County Nevada

Author : Bryan Wells Norman
Publisher :
ISBN 13 :
Total Pages : 59 pages
Book Rating : 4.:/5 (12 download)

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Download or read book Structural Evolution of the Central Schell Creek Range, White Pine County, Nevada written by Bryan Wells Norman and published by . This book was released on 2013 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: The central Schell Creek Range (SCR) in eastern Nevada records some of the oldest extensional faulting in the eastern Great Basin. The geometries and kinematics of these early normal faults are poorly documented in this portion of the range, yet they have major implications for the shallow levels of the northern Snake Range metamorphic core complex and faults within major extensional accommodation zones. New detailed 1:12,000 scale geologic field mapping and structural analysis has documented six separate tilt domains along with numerous high- and low-angle, east- and west-dipping-normal faults. Two of the largest and oldest faults are the low-angle, west-directed, Majors Place Detachment (MPD), and the low-angle, east-directed, Schell Peaks Detachment (SPD). These faults along with their hanging wall splays have thinned the exposed rocks underlying the range from 7 km to 2-3 km. The SPD and MPD possibly exploited the limbs of a pre-existing antiform transecting the SCR. The east-directed SPD exploited the east-dipping limb and the west-directed MPD exploited the west-dipping limb. 3) Miocene and younger range bounding normal fault systems at a high angle to bedding and cut the low-angle faults within the range.