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Local Geology |
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Northern Utah is a geologist's paradise. A wide variety
of sedimentary, metamorphic, and igneous rocks of every geologic
Era, recording several tectonic events, are available within a
few minutes to few hours from campus. Go to a simple geologic
map of Utah |
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Logan is located at the eastern edge of Cache
Valley, which is bounded on both sides by active normal faults.
The East Cache fault has 3-4 km of slip on it, and provides the
tectonic framework for the spectacular geomorphology (see photo). To
the east lies the Bear River Range, which is composed on Late Proterozoic
and Paleozoic sedimentary rocks broadly folded in the Cretaceous
to form the Logan syncline. Local topographic relief of 1500 m
attests to the active tectonism of the region. Slip on
the East Cache fault last occured 4,000-7000 years ago. Check
out Susanne Janecke's map of the regional faulting |
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The university sits on a delta deposited at
the edge of famous Lake Bonneville below the triangular facets
and fault scarps of the Bear River Range (see photo on left above). With
these features and incredible glacial features, rivers, canyons,
and redrock country within an easy drive, the region is a geomorphological
wonderland. |
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