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Full-Text Articles in Physical Sciences and Mathematics
Inventory Of Rock Glaciers In The American West And Their Topography And Climate, Allison Reese Trcka
Inventory Of Rock Glaciers In The American West And Their Topography And Climate, Allison Reese Trcka
Dissertations and Theses
Rock glaciers are flowing geomorphic landforms composed of an ice/debris mixture. A uniform rock glacier classification scheme was created for the western continental US, based on internationally recognized criteria, to merge the various regional published inventories. A total of 2249 rock glaciers (1564 active, 685 inactive) and 7852 features of interest were identified in 10 states (WA, OR, CA, ID, NV, UT, ID, MT, WY, CO, NM). Sulfur Creek rock glacier in Wyoming is the largest active rock glacier (2.39 km2). The mean area and elevation for active and inactive rock glaciers are 0.18 km2, 3384 …
Geology Of North Craters Of The Moon National Monument, Idaho, William C. Sidle
Geology Of North Craters Of The Moon National Monument, Idaho, William C. Sidle
Dissertations and Theses
The purpose of the investigation was to map the geology of the north end of Craters of the Moon National Monument and surrounding area. A stratigraphic sequence of Late Paleozoic sedimentary and Tertiary volcanic rocks was compiles and the structures of these rocks and contact relationships with intrusions were delineated. Grade and facies of contact metamorphism were defined. The Snake River Plain basalts were also mapped. The sources of these flows were determined where possible. Preexisting structures and relationships of vents to earlier faulting were explored in ascertaining extensions of the Great Rift Zone into the Pioneer Mountains. Petrographic descriptions …