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Devils Garden Volcanic Field
Devils Garden Volcanic Field is a volcanic field located south east of Newberry Caldera in Oregon. The lava field consists of several flows of pahoehoe lava that erupted from fissure vents in the northeast part of the Devils Garden. The main vent on the north end of the fissure created a lava tube system. Several small vents to the south produced the Blowouts (two large spatter cones), several small spatter cones, and flows. Several older hills and higher areas were completely surrounded by the flows to form kipukas. The distal ends of the flows show excellent examples of inflated lava. The flows cover an area of . Devils Garden is most likely between 50,000 and 10,000 years old. It is certainly older than the formation of Crater Lake as ash from the eruption of Mount Mazama overlays the Devils Garden lava flows. See also * List of volcanic fields A list of volcanic fields follows below. {{Incomplete list, date=May 2025 Africa Algeria * Atakor volcanic field * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake County, Oregon
Lake County is one of the List of counties in Oregon, 36 counties in the U.S. state of Oregon. As of the 2020 United States census, 2020 census, the population was 8,160. Its county seat is Lakeview, Oregon, Lakeview. The county is named after the many lakes found within its boundaries, including Lake Abert, Summer Lake (Oregon), Summer Lake, Hart Lake (Oregon), Hart Lake, and Goose Lake (Oregon-California), Goose Lake. Lake County is in the High Desert (Oregon), high desert region known as the Oregon Outback, on the northwestern edge of the Great Basin. The county is generally divided between the communities around Lakeview and Paisley, Oregon, Paisley to the south and the communities around Christmas Valley, Oregon, Christmas Valley, Fort Rock, Oregon, Fort Rock, and Silver Lake, Oregon, Silver Lake to the north. Its economy consists largely of agriculture and natural resource management and extraction. It is home to many large cattle ranches, hay farms, and timber holdings ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Forest Service
The United States Forest Service (USFS) is an agency within the United States Department of Agriculture, U.S. Department of Agriculture. It administers the nation's 154 United States National Forest, national forests and 20 United States National Grassland, national grasslands covering of land. The major divisions of the agency are the Chief's Office, National Forest System, State and Private Forestry, Business Operations, as well as Research and Development. The agency manages about 25% of federal lands and is the sole major national land management agency not part of the United States Department of the Interior, U.S. Department of the Interior (which manages the National Park Service, the U.S. Fish and Wildlife Service and the Bureau of Land Management). History In 1876, Congress formed the office of Special Agent in the Department of Agriculture to assess the quality and conditions of forests in the United States. Franklin B. Hough was appointed the head of the office. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deschutes National Forest
The Deschutes National Forest is a United States national forest (NF) located in Central Oregon, in parts of Deschutes, Klamath, Lake, and Jefferson counties. It was established in 1908, with border changes following in 1911 and 1915. The forest now encompasses almost along the east side of the Cascade Range. The forest is bordered to the south by the Fremont–Winema NF, to the southwest by the Umpqua NF, and to the west by the Willamette NF. The Deschutes NF hosts official preservation areas, various biology, and recreational activities. History The Deschutes National Forest was established in 1908 from parts of the Blue Mountains, Cascade, and Fremont national forests (NFs). In 1911, parts of the Deschutes were split off to form the Ochoco and Paulina NFs, with parts of the Cascade and Oregon NFs being added to the Deschutes; in 1915, the Paulina NF was absorbed back into the Deschutes. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Fields Of Oregon
A volcano is commonly defined as a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and because most of Earth's plate boundaries are underwater, most volcanoes are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes resulting from divergent tectonic activity are usually non-explosive whereas those resulting from convergent tectonic activity cause violent eruptions."Mid-ocean ridge tectonics, volcanism and geomorphology." Geology 26, no. 455 (2001): 458. https://macdonald.faculty.geol.ucsb.edu/papers/Macdonald%20Mid-Ocean%20Ridge%20Tectonics.pdf Volcanoes can also form where there is stretching an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Lake County, Oregon
A landform is a land feature on the solid surface of the Earth or other planetary body. They may be natural or may be anthropogenic (caused or influenced by human activity). Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great oceanic basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, structure stratification, rock exposure, and soil type. Gross physical features or landforms include intuitive elements such as berms, cliffs, hills, mounds, peninsulas, ridges, rivers, valleys, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Lava Field
The Squaw Ridge Lava field, also known as the East Lava Field, is a young basaltic field located in the U.S. state of Oregon southeast of Newberry Volcano.. Retrieved 2008-05-13. The flow erupted from the Lava Mountain shield and is likely related to the Four Craters Lava Field, both of which were created after Mount Mazama erupted. Notable Vents See also * Devils Garden volcanic field * List of volcanoes in the United States * List of volcanic fields * Types of volcanic eruptions A volcanic eruption occurs when material is expelled from a volcanic vent or fissure vent, fissure. Several types of volcanic eruptions have been distinguished by volcanologists. These are often named after famous volcanoes where that type of ... References Volcanic fields of Oregon Landforms of Lake County, Oregon Lava fields Volcanoes of Oregon {{LakeCountyOR-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four Craters Lava Field
Four Craters Lava Field is a basaltic volcanic field located south east of Newberry Caldera in the U.S. state of Oregon. The volcanic field covers about 30 square kilometers and post-dates Mount Mazama's eruption. Four Holocene cinder cones are the source of the flows in the field and are aligned along a fissure trending N 30° W. The cones rise 75 to 120 meters above the flows and the distance between the northernmost and southernmost cones is about 3.5 kilometers. Closely related to the Four Craters lava field is Crack-in-the-Ground located at the southwest corner of the field. The eruptions from the field were accompanied by a slight sinking of the older rock surface. This shallow, graben-like sink is about 3 kilometers wide and extends to the south into an old lake basin. Crack-in-the-Ground marks the western edge of this small, volcano-tectonic depression and is nearly 9 meters deep and over a meter wide. The crack is the result of a tension fracture along a hingeline produc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Volcanic Fields
A list of volcanic fields follows below. {{Incomplete list, date=May 2025 Africa Algeria * Atakor volcanic field * In Teria volcanic field * Manzaz volcanic field * Nemours-Nedroma * Tafna Beni Saf * Tahalra volcanic field Cameroon * Oku Volcanic Field Cape Verde * Charles Darwin volcanic field Chad * Tarso Toh Ethiopia * Dilo-Dukana volcanic field Eritrea *Assab volcanic field Kenya * Dilo-Dukana volcanic field Libya * Gharyan volcanic field * Haruj Madagascar * Ambre-Bobaomby volcanic field * Ankaizina volcanic field * Itasy volcanic field Morocco * Azrou volcanic field * Berguent volcanic field * Chott Tigri volcanic field * Mrit-Ment volcanic field * Oujda volcanic field * Oulmés volcanic field * Rekkame volcanic field Niger * Tin Taralle volcanic field * Todra volcanic field Sudan * Bayuda volcanic field * Meidob volcanic field * Tagabo Hills Asia China *Hainan Volcanic Field * Honggeertu volcanic field * Keluo * Northern Tibet volcanic field * Wudalianchi volcan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambridge University Press
Cambridge University Press was the university press of the University of Cambridge. Granted a letters patent by King Henry VIII in 1534, it was the oldest university press in the world. Cambridge University Press merged with Cambridge Assessment to form Cambridge University Press and Assessment under Queen Elizabeth II's approval in August 2021. With a global sales presence, publishing hubs, and offices in more than 40 countries, it published over 50,000 titles by authors from over 100 countries. Its publications include more than 420 academic journals, monographs, reference works, school and university textbooks, and English language teaching and learning publications. It also published Bibles, runs a bookshop in Cambridge, sells through Amazon, and has a conference venues business in Cambridge at the Pitt Building and the Sir Geoffrey Cass Sports and Social Centre. It also served as the King's Printer. Cambridge University Press, as part of the University of Cambridge, was a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Mazama
Mount Mazama ( Klamath: ''Tum-sum-ne'') is a complex volcano in the western U.S. state of Oregon, in a segment of the Cascade Volcanic Arc and Cascade Range. The volcano is in Klamath County, in the southern Cascades, north of the Oregon–California border. Its collapse, due to the eruption of magma emptying the underlying magma chamber, formed a caldera that holds Crater Lake (''Giiwas'' in the Native American language Klamath). Mount Mazama originally had an elevation of approximately , but following its climactic eruption this was reduced to . Crater Lake is deep, the deepest freshwater body in the U.S. and the second deepest in North America after Great Slave Lake in Canada. Mount Mazama formed as a group of overlapping volcanic edifices such as shield volcanoes and small composite cones, becoming active intermittently until its climactic eruption 7,700 years ago. This eruption, the largest known within the Cascade Volcanic Arc in a million years, destroyed Mazama's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crater Lake
Crater Lake ( Klamath: ) is a volcanic crater lake in south-central Oregon in the Western United States. It is the main feature of Crater Lake National Park and is a tourist attraction for its deep blue color and water clarity. The lake partly fills a caldera that was formed around 7,700 (± 150) years ago by the collapse of the volcano Mount Mazama. No rivers flow into or out of the lake; the evaporation is compensated for by rain and snowfall at a rate such that the total amount of water is replaced every 150 years. With a depth of , the lake is the deepest in the United States. In the world, it ranks eleventh for maximum depth, as well as fifth for mean depth. Crater Lake features two small islands. Wizard Island, located near the western shore of the lake, is a cinder cone about in size. Phantom Ship, a natural rock pillar, is located near the southern shore. Since 2002, one of Oregon's regular-issue license-plate design has featured Crater Lake and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
