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Over 70,000 photos covering a variety of topics from Marriott Library Special Collections
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Environmental Geology in Utah
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Photo Number
51
Damage to newly laid curb and gutter on Salt Lake City's East Bench, resulting from August 1969 cloudburst.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n008
52
Damage to the Salt Lake City Cemetery from a flood channeled in Perry's Hollow, a normally dry drainage course.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n009
53
Aerial photograph showing same swath and slide as on topographic map. Arrow points to displaced mass from swath behind it in mountain range.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n043
54
Ancient landslides show up on maps with scales as small as one inch to the mile. Three such ancient slides are pointed out along the mountain front in Juab County. Note swath of anomalous contours leading down to lowermost slide, obviously the path of bedrock which failed.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n042
55
Another example of dynamic forces at work in the geologic environment: pressure ridges formed in the salt crust of Utah's Bonneville Salt Flats. These ridges grow and shrink seasonally.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n074
56
Areas of carbonate rock (limestone) outcrops (in blue) in the vicinity of Bear Lake, Utah. Rocks range in age from Cambrian to Jurassic. Development on the outcrop area should be closely monitored to protect the underlying potable water aquifer.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n069
57
Arrow points to incipient failure of an excavation wall for a foundation for a multistory office building. Material is horizontally stratified Lake Bonneville silts and sands.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n080
58
Bear Lake area map showing: (1) point of issue of Swan Creek Spring, (2) possible contributory sink holes (in red) in the Bear River Range, (3) precipitation (rain and snow) measuring stations (in bluelined blocks).
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n068
59
Big Cottonwood Creek flooding in Salt Lake City. Numerous houses along its banks were flooded in 1952.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n002
60
Blasting for an interstate highway in the immediate vicinity of a dam. Concrete railing of dam appears in lower right corner. Vibrations, whether natural (earthquake) or manmade, may damage structures on sensitive foundations.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n034
61
Branch of the Wasatch Fault exposed in utility trench excavation in Salt Lake City. Hammer and field book are at the same stratigraphic horizon, indicating a displacement of 2 1/2 feet in late mudflow deposits, just below the ground surface.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n096
62
Breach of highway embankment on East Bench in Salt Lake City caused extensive damage to residential neighborhood downslope.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n006
63
Characteristic arcuate crack pattern in basement of house. Both vertical and lateral displacement is apparent.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n051
64
The circumstances here probably make a utility trench cave-in inevitable. A perched water table is sapping fine sand from underneath a thick silt bed, leaving the latter unsupported. Failure will be too rapid for escape of a workman who may be in the trench at the wrong moment.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n082
65
Closer view of head and foot of Park City landslide. Note tilt blocks at head of slide.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n045
66
Closer view of slide cracks in high fill in Salt Lake City subdivision. Note housing density downslope.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n061
67
Closeup of slide plane. Note deposition of white calcium carbonate by groundwater along slide plane. Arrow points to smooth, slickensided (grooved) surface on underside of sliding mass.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n059
68
Closeup view of the fault shown in last slide (p1274n093).
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n094
69
Cloudburst flood caused erosion of the North Bench in Salt Lake City. Eroded channel begins where paved street ends.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n005
70
Cone or fan of debris deposited on highway after cloudburst flood in Big Cottonwood Canyon.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n017
71
Hydrograph depicting flow for the year 1945 of Utah's second largest spring, Swan Creek Spring, west of Bear Lake in northern Utah. Note the fluctuation in flow from April to September. Note also rapid response to spring snowmelt (April and May) and rainfall (June and July). The rock from which the spring issues (aquifer) is limestone. The graph illustrates the importance of controlling development on limestone terrain.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n067
72
In the same house; the ceiling is clearly distressed.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n052
73
Incipient landslide failure on subdivision road. Note characteristic arcuate configuration of ground surface, also patching along crack.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n046
74
Landslide along a scarp of the East Bench Fault in Salt Lake City. No earth tremor is known to have triggered this slide, but an earthquake could trigger similar slides, given similar geologic conditions.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n099
75
Landslide in Empire Canyon, Park City, in altered bedrock. Mining of metallic ores occurs just up the canyon. Park City lies just down-canyon. Switchbacks on road to Brighton have been wiped out; A further failure two years later took away even more of the hillside and dammed the creek in the canyon. Oblique aerial view.
P1274 Environmental Geology and Geologic Hazards in Utah Photograph Collection
p1274n044
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