Shinumo Quartzite
The Shinumo Quartzite also known as the Shinumo Sandstone, is a Mesoproterozoic rock formation, which outcrops in the eastern Grand Canyon, Coconino County, Arizona. The Shinumo Quartzite consists of a series of massive, cliff-forming sandstones and sedimentary quartzites. Its cliffs contrast sharply with the stair-stepped topography of the underlying Hakatai Shale. Overlying it, dark green to black, fissile, slope-forming shales of the Dox Formation create a well-defined notch. It and other formations of the Unkar Group occur as isolated fault-bound remnants along the main stem of the Colorado River and its tributaries in Grand Canyon. Typically, the Shinumo Quartzite and associated strata of the Unkar Group dip northeast (10°-30°) toward normal faults that dip 60+° toward the southwest.
Shinumo Quartzite
The Shinumo Quartzite also known as the Shinumo Sandstone, is a Mesoproterozoic rock formation, which outcrops in the eastern Grand Canyon, Coconino County, Arizona. The Shinumo Quartzite consists of a series of massive, cliff-forming sandstones and sedimentary quartzites. Its cliffs contrast sharply with the stair-stepped topography of the underlying Hakatai Shale. Overlying it, dark green to black, fissile, slope-forming shales of the Dox Formation create a well-defined notch. It and other formations of the Unkar Group occur as isolated fault-bound remnants along the main stem of the Colorado River and its tributaries in Grand Canyon. Typically, the Shinumo Quartzite and associated strata of the Unkar Group dip northeast (10°-30°) toward normal faults that dip 60+° toward the southwest.
has abstract
The Shinumo Quartzite also kno ...... omprise Vishnu Basement Rocks.
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Link from a Wikipage to an external page
Wikipage page ID
38,281,530
Wikipage revision ID
744,507,845
age
Meso-Proterozoic, between 1,170 and 1,150 Ma
Caption
-Isis Temple-monadnock—C ...... h slopes of Bright Angel Shale
country
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namedfor
Shinumo Canyon
otherlithology
conglomeratic sandstone, quartzitic sandstone, arkosic sandstone, mudstone
period
Mesoproterozoic
region
Arizona, Grand Canyon
Isis Temple region, southwest ...... orge, and along Colorado River
subject
hypernym
type
comment
The Shinumo Quartzite also kno ...... ip 60+° toward the southwest.
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label
Shinumo Quartzite
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