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Sheepeater Cliff
The Sheepeater Cliffs are a series of exposed cliffs made up of columnar basalt in Yellowstone National Park in the United States. The lava was deposited about 500,000 years ago during one of the periodic basaltic floods in Yellowstone Caldera, and later exposed by the Gardner River. The cliffs are noted as a textbook example of a basaltic flow with well defined joints and hexagonal columns. They were named after a band of Eastern Shoshone known as '' Tukuaduka'' ( sheep eaters). Many of the exposed cliffs are located along a steep inaccessible canyon cut by the Gardner near Bunsen Peak, but some of the cliffs located just off the Grand Loop Road The Grand Loop Road is a historic district which encompasses the primary road system in Yellowstone National Park. Much of the system was originally planned by Captain Hiram M. Chittenden of the US Army Corps of Engineers in the early days of th ... can be reached by car. External links National Park Service Video - Sheepeater Cli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheepeater Cliff, Yellowstone, June 21, 2010
The Tukudeka or Mountain Sheepeaters are a band of Shoshone within the Eastern Shoshone and the Northern Shoshone.Shimkin 335 Before the reservation era, they traditionally lived in the central Sawtooth Range of Idaho and the mountains of what is now northwest Wyoming. Bands were very fluid and nomadic, and they often interacted with and intermarried other bands of Shoshone. Today the Tukudeka are enrolled in the federally recognized Shoshone-Bannock Tribes of the Fort Hall Reservation of Idaho and the Eastern Shoshone of the Wind River Indian Reservation in Wyoming. Name "Tukudeka" is spelled several ways, including Tukadüka, Tukudika, Tukku Tikka'a, Tukkuikka, Tukkutikka, and Tukuarika, and is translated as "Eaters of White Meat," "Eaters of Mountain Sheep," "Mountain Sheepeaters," or simply, "Sheepeaters." [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columnar Basalt
Basalt (; ) is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of Venus, which cover ~80% of the surface, are basaltic; the lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flows that can spread over great areas before cooling and solidifying. Flood basalts are thick sequen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellowstone National Park
Yellowstone National Park is an American national park located in the western United States, largely in the northwest corner of Wyoming Wyoming () is a state in the Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the southwest, and Colorado to the sou ... and extending into Montana and Idaho. It was established by the 42nd United States Congress, 42nd U.S. Congress with the Yellowstone National Park Protection Act and signed into law by President Ulysses S. Grant on March 1, 1872. Yellowstone was the first national park in the U.S. and is also widely held to be the first national park in the world. The park is known for List of animals of Yellowstone, its wildlife and Geothermal areas of Yellowstone, its many geothermal features, especially the Old Faithful geyser, one of its most popular. While it represents many types of biomes, the subalpi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five major unincorporated territories, nine United States Minor Outlying Islands, Minor Outlying Islands, and 326 Indian reservations. The United States is also in Compact of Free Association, free association with three Oceania, Pacific Island Sovereign state, sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Palau, Republic of Palau. It is the world's List of countries and dependencies by area, third-largest country by both land and total area. It shares land borders Canada–United States border, with Canada to its north and Mexico–United States border, with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood Basalt
A flood basalt (or plateau basalt) is the result of a giant volcanic eruption or series of eruptions that covers large stretches of land or the ocean floor with basalt lava. Many flood basalts have been attributed to the onset of a hotspot reaching the surface of the earth via a mantle plume. Flood basalt provinces such as the Deccan Traps of India are often called ''traps'', after the Swedish word ''trappa'' (meaning "staircase"), due to the characteristic stairstep geomorphology of many associated landscapes. Michael R. Rampino and Richard Stothers (1988) cited eleven distinct flood basalt episodes occurring in the past 250 million years, creating large igneous provinces, lava plateaus, and mountain ranges. However, more have been recognized such as the large Ontong Java Plateau, and the Chilcotin Group, though the latter may be linked to the Columbia River Basalt Group. Large igneous provinces have been connected to five mass extinction events, and may be associate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellowstone Caldera
The Yellowstone Caldera, sometimes referred to as the Yellowstone Supervolcano, is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States. The caldera and most of the park are located in the northwest corner of Wyoming. The caldera measures , and postcaldera lavas spill out a significant distance beyond the caldera proper. The caldera formed during the last of three supereruptions over the past 2.1 million years: the Huckleberry Ridge eruption 2.1 million years ago (which created the Island Park Caldera and the Huckleberry Ridge Tuff), the Mesa Falls eruption 1.3 million years ago (which created the Henry's Fork Caldera and the Mesa Falls Tuff), and the Lava Creek eruption approximately 640,000 years ago (which created the Yellowstone Caldera and the Lava Creek Tuff). Volcanoes at Yellowstone Volcanism at Yellowstone is relatively recent, with calderas created by large eruptions that took place 2.1 million, 1.3 million, and 640,000 years ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gardner River
The Gardner River (also known as the Gardiner River) is a tributary of the Yellowstone River, approximately long, in northwestern Wyoming and south central Montana in the United States. The entire river is located within Yellowstone National Park. It rises on the slope of Joseph Peak, Gallatin Range in the northwestern part of the park, and winds southeast through Gardner's Hole, a broad subalpine basin which is a popular trout fishing location. The Gardner falls within the Native Trout Conservation Area and anglers are allowed to take an unlimited number of brown and rainbow trout. Mountain whitefish and Yellowstone cutthroat trout must be released. Angling on the Gardner is governed by Yellowstone National Park fishing regulations. After merging with Panther Creek, Indian Creek and Obsidian Creek, it then turns north and flows through a steep canyon where it cuts through a basaltic flow from approximately 500,000 years ago known as Sheepeater Cliffs. Below Sheepeat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint (geology)
A rock in Abisko fractured along existing joints possibly by mechanical frost weathering A joint is a break ( fracture) of natural origin in a layer or body of rock that lacks visible or measurable movement parallel to the surface (plane) of the fracture ("Mode 1" Fracture). Although joints can occur singly, they most frequently appear as joint sets and systems. A ''joint set'' is a family of parallel, evenly spaced joints that can be identified through mapping and analysis of their orientations, spacing, and physical properties. A ''joint system'' consists of two or more intersecting joint sets. The distinction between joints and faults hinges on the terms ''visible'' or ''measurable,'' a difference that depends on the scale of observation. Faults differ from joints in that they exhibit visible or measurable lateral movement between the opposite surfaces of the fracture ("Mode 2" and "Mode 3" Fractures). Thus a joint may be created by either strict movement of a rock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Shoshone
Eastern Shoshone are Shoshone who primarily live in Wyoming and in the northeast corner of the Great Basin where Utah, Idaho and Wyoming meet and are in the Great Basin classification of Indigenous People. They lived in the Rocky Mountains during the 1805 Lewis and Clark Expedition and adopted Plains horse culture in contrast to Western Shoshone that maintained a Great Basin culture. The Eastern Shoshone primarily settled on the Wind River Indian Reservation in Wyoming, after their leader, Washakie signed the Fort Bridger Treaty in 1868."The Wind River Reservation." ''The Shoshone Indians.'' Retrieved 20 Oct 2013. History The Eastern Shoshone adopted horses much sooner than their neighbours to ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tukuaduka
The Tukudeka or Mountain Sheepeaters are a band of Shoshone within the Eastern Shoshone and the Northern Shoshone.Shimkin 335 Before the reservation era, they traditionally lived in the central Sawtooth Range of Idaho and the mountains of what is now northwest Wyoming. Bands were very fluid and nomadic, and they often interacted with and intermarried other bands of Shoshone. Today the Tukudeka are enrolled in the federally recognized Shoshone-Bannock Tribes of the Fort Hall Reservation of Idaho and the Eastern Shoshone of the Wind River Indian Reservation in Wyoming. Name "Tukudeka" is spelled several ways, including Tukadüka, Tukudika, Tukku Tikka'a, Tukkuikka, Tukkutikka, and Tukuarika, and is translated as "Eaters of White Meat," "Eaters of Mountain Sheep," "Mountain Sheepeaters," or simply, "Sheepeaters." [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bunsen Peak
Bunsen Peak el. is a prominent peak due south of Mammoth Hot Springs in Yellowstone National Park, Wyoming. The peak lies on the east flank of Kingman Pass on the Mammoth to Norris section of the Grand Loop Road. The peak was first ascended by Ferdinand V. Hayden and Captain John W. Barlow in 1871, Bunsen Peak was not named until 1872 during the second Hayden Geologic Survey. E. S. Topping named the peak ''Observation Mountain'' in 1872 as well, but that name did not stick. The Bunsen Peak Trail with its trailhead just south of Mammoth is a steep to the summit. Bunsen Peak was named for the German chemist Robert Bunsen, the inventor of the Bunsen Burner and responsible for early work on volcanic geyser theories. See also *Mountains and mountain ranges of Yellowstone National Park Yellowstone National Park, located primarily in the U.S. state of Wyoming, though the park also extends into Montana and Idaho and its Mountains and Mountain Ranges are part of the Rocky Mount ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
