Fort Lewis College
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The existence of authigenic and reworked clays in fault zones is well understood to control the hydrologic and mechanical properties of faults. The net effect these clays have on fluid conductivity, reservoir quality, and fluid-derived mineralization is dependent on the origin of the gouge. To address this topic, I collected samples along four high-angle normal faults exposed within a copper mine in Lisbon Valley of Southeast Utah. The GTO, Lisbon...
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Image shows the side of a couple buildings with wagon wheels propped up against the fence with mountains behind the buildings.
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A sepia toned photo of the interior of the Spruce Tree House ruins at Mesa Verde.
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Color image showing the "T" shape doorway at Aztec Ruins, with the sky visible in the background. Masonry consists of sandstones.
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Image of Dolores Ranger Station Dwellings within the Montezuma National Forest. The dwellings appear to be under construction with basic structure elements present. Various buildings and vehicles are in the background.
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Picture of a boy leaving a store. Two men are watching the photographer, and there are huge snow drifts along the edge of the street.
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Image of Bayfield ranger station garage and shop under construction. Men working with what could be a concrete maker, with tons of stones laying around on the floor next it. Or it could be machine used in the construction process. Other workers appear to be hammer nails inside the structure. Bags of material are also present.
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Power lines among buildings.
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Power lines over a road and houses.
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Long boardwalk leading to small wooden house. The smoke stacks of the power company can be seen behind the house. Oversize.
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A log encased in ferricrete 88.5 cm above the modern thalweg of Prospect Gulch yielded four possible radiocarbon dates, with the most probable (at 33.9%) being 1710.5 ± 14.5. An incision rate of 280 cm/ky was estimated. The incision rate for the Gunnison River basin is 253 cm/ky. Possible features that support our slightly higher incision rate are:
• Bedrock is made up of
highly fractured volcanic
rock
• Mining has stripped the
drainage...
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175 feet R. G. Southern RY. track near Telluride, left 62 feet in the air by a cloud burst, b/w postcard.
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Postcard with a picture of a bridge spanning a creek. There is a letter on both the front and the back.
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Sepia lithograph print of the original Colorado Capitol building; the current-to-print date capitol building, inset; and a blue columbine.
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Four views of the 1876 Gourmet Restaurant in Ouray, Colorado.
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Image of Ranger meeting in Monte Vista. A group of rangers poses for a photograph outside a large structure. There are numbers written on top of each Ranger.
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Image of a list of names, the words written are:
"1907 RANGER MEETING, MONTE VISTA, COLO.
1. John Cline, Ranger, Cochetopa.
2. Raphael Zon, Washington, D. C.
3. Frank Bowers, Ranger, San Isabel.
4. Lewis Swallow, Ranger, San Isabel.
5. W. B. Willey, Ranger, San Isabel.
6. Mark Healey, Ranger, San Juan.
7. O. S. Macklefresh, Ranger, San Isabel.
8. Lee Sweitzer, Ranger, San Juan.
9. Hugh Curry, Ranger, San Juan.
10. Lucas J. Chaves,...
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1910 flood in Durango, Colorado. Shows washed-out railroad bridge.
