The heat driving the geothermal system emanates from a zone of partially molten rock (magma) deep below the greater Clear Lake volcanic system. Konocti looking west-n/w on Highway 29. Change ), You are commenting using your Twitter account. The Clear Lake Volcanic Field is not on a spreading center or within a subduction zone. The site of late-Pliocene to early Holocene activity, the volcanic field consists of lava domes, cinder cones, and maars with eruptive products varying from basalt to rhyolite. The late-Pliocene to early Holocene Clear Lake volcanic field in the northern Coast Ranges, contains lava dome complexes, cinder cones, and maars of basaltic-to-rhyolitic composition. The volcanic field contains The Geysers , a steam field which powers a network of the world’s most productive geothermal power plants. The town of Clear Lake lies within the volcanic field as does much of the 43,000-acre fresh water lake of its namesake. Yes according to the United States Geological Survey (USGS) website that the Clear Lake Volcanic Field at Mount Konocti in Lake County, California is listed at “HIGH” under Threat Potential. The Clear Lake Volcanic Field is a volcanic field beside Clear Lake in California's northern Coast Ranges. Clear Lake volcanic field lies in the northern Coast Ranges, California, ca. Lying next to Clear Lake, the Volcanic Field consists of lava domes, cinder cones, and maars with a powerful magma chamber beneath. The volcanic field consists of lava dome complexes, cinder cones, and maars of basaltic-to-rhyolitic composition. 4.6 Strikes Geysers in Sonoma County Over Night. Clear Lake Volcanic Field Mountain Photos. The Clear Lake Volcanic Field is a volcanic field beside Clear Lake in California 's northern Coast Ranges. The Geysers steam field, which sits at the southwest margin of the volcanic region, is host to one of the world’s most productive geothermal power plants, producing enough electricity for 850,000 homes. Clear Lake Volcanic Field is located about 90 miles north of San Francisco, California. Lake County’s landscape is dominated by Mt. Clear Lake Volcanic Field is located about 90 miles north of San Francisco, California.The town of Clear Lake lies within the volcanic field as does much of the 43,000-acre fresh water lake of its namesake. The Xa-Ben-Na-Po Band of Pomo Indians inhabited the region as many as 12,000 years ago – 4,000 years before Egyptian civilization. http://volcanoes.usgs.gov/volcanoes/clear_lake/. A volcanic field is an area of the Earth's crust that is prone to localized volcanic activity. The Clear Lake Volcanics of late Pliocene(?) Change ), You are commenting using your Google account. Volcano: This collection contains many thousands images of volcanoes from all continents except Antarctica. The Clear Lake Volcanics erupted during four periods of time beginning at about 2 Ma. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. Be the first to submit your climbing note! Like many of the volcanic areas in the U.S. the Geysers-Clear Lake region has been drilled to determine its potential for geothermal energy. Monitoring in the Clear Lake region by the USGS and a collaborative effort with Calpine Corporation in the Geysers Steam Field, provides real-time tracking of earthquake activity. Above: The Geysers from Highway 175 looking south. VOLCANO: Mount Konocti, part of Clear Lake Volcano Field WHAT TO KNOW: At a half-million years old, Clear Lake is not just the county’s namesake but the oldest lake in … Multimedia. Konocti and other mountains in the Clear Lake Volcanic Field. The town of Clearlake lies within the volcanic field as does much of the 43,000-acre fresh water lake of its namesake. Mount Konocti, a dacitic lava dome on the south shore of … to Holocene age covers 400 sq km about 150 km north of San Francisco in the Coast Ranges of California. and 4,285 ft respectively. Mount Konocti, a … ( Log Out /  During the past 24 hours, there have been 7 quakes of magnitude 2.0 or higher. 135 km north of San Francisco. Cobb Mountain and Mount Konocti are the two highest peaks in the volcanic field, at and respectively. The volcanic field, part of the Pacific Ocean’s Ring of Fire, contains seven volcanic vents from 10,000 to 2.5 million years old. [3], The Clear Lake volcanics are thought to have been the heat source for the hot springs and hydrothermal activity that formed the mercury ores at the Sulphur Bank Mine, and the gold ore at the McLaughlin Mine. Create a free website or blog at WordPress.com. The Geysers Geothermal Field. The site of late- Pliocene to early Holocene activity, the volcanic field consists of lava domes, cinder cones, and maars with eruptive products varying from basalt to rhyolite. Deformation. California Volcano Observatory. Summer Field Notes 2012: The Clear Lake Volcanic Field Little Borax Lake on the western shore of Clear Lake. Mount Konocti, a dacitic lava dome on the south shore of … The feature is a maar that formed between 100,000 and 10,000 years ago. The town of Clearlake lies within the volcanic field as does much of the 43,000-acre fresh water lake of its namesake. Clear Lake Volcanic Field Eruption at Mount Konocti Threat Potential is Listed as “HIGH” Posted on February 2, 2018 Updated on February 3, 2018. The site of late-Pliocene to early Holocene activity, the volcanic field consists of lava domes, cinder cones, and maars with eruptive products varying from basalt to rhyolite. Geology & History Hazards Monitoring Multimedia Publications The site of late-Pliocene to early Holocene activity, the volcanic field consists of lava domes, cinder cones, and maars with eruptive products varying from basalt to rhyolite. Clear Lake Volcanic Field is located about 90 miles north of San Francisco, California. The map above includes examples of volcanoes taken from different viewing angles, both vertical, where volcanoes look almost circular, to oblique, where the typical cone-like form of volcanoes shows up better. USGS: Volcano Hazards Program - California Volcano Observatory USGS Volcano Science Center Clear Lake Volcanic Field hazard information. Publications. The Clear Lake volcanic field has been active for the last 2 million years. View of Mount Konocti. Seismicity. Change ). Mining and mineralization of the Clear Lake region. Lassen Volcanic National Park is one of the few areas in the world where all four types of volcano can be found—plug dome, shield, cinder cone, and stratovolcano. [5] These can generate approximately 2000 megawatts, enough to power two cities the size of San Francisco. They may occur as a monogenetic volcanic field or a polygenetic volcanic field. Mining. Clear Lake Volcanic Field. Monitoring. Geology & History. They usually consist of clusters of 10 to 100 volcanoes such as cinder cones. [2] Cobb Mountain and Mount Konocti are the two highest peaks in the volcanic field, at 4,724 feet (1,440 m)[1] and 4,285 feet (1,306 m)[4] respectively. Clear Lake volcanic field lies in the northern Coast Ranges, California, ca. There is a general decrease in age northward from 2 Ma in the south to about 10,000 years in the north. Sorry, your blog cannot share posts by email. The volcanic field consists of lava dome complexes, cinder cones, and maars of basaltic-to-rhyolitic composition. Image Galleries. [6], U.S. Geological Survey Geographic Names Information System: Cobb Mountain, U.S. Geological Survey Geographic Names Information System: Mount Konocti, "This Dynamic Earth: The Story of Plate Tectonics: USGS General Interest Publication", USGS.gov: Clear Lake Volcanic Field, California, https://en.wikipedia.org/w/index.php?title=Clear_Lake_Volcanic_Field&oldid=988757217, Natural history of the California Coast Ranges, Creative Commons Attribution-ShareAlike License, This page was last edited on 15 November 2020, at 02:06. ( Log Out /  The Clear Lake Volcanic Field is a volcanic field beside Clear Lake in California's northern Coast Ranges. Clear Lake Volcanic Field Climbing Notes. Please submit any useful information about climbing Clear Lake Volcanic Field that may be useful to other climbers. Mount Konocti. The Geysers. Understanding the Clear Lake Volcanic Field Mangan said that the Clear Lake Volcanic Field is one of the centers that has a potential threat that only recently has been realized, which was why it was listed in the 2005 threat assessment as well as this newest document. Geophysical data suggests there is currently a spherical to cylindrical magma chamber about 14 km (8.7 mi) diameter and about 7 km (4.3 mi) from the surface. Clear Lake Volcanic Field. Lava flows may also occur. The site of late-Pliocene to early Holocene activity, the volcanic field consists of lava domes, cinder cones, and maars with eruptive products varying from basalt to rhyolite. Lassen Volcanic National Park is an American national park in northeastern California.The dominant feature of the park is Lassen Peak, the largest plug dome volcano in the world and the southernmost volcano in the Cascade Range. Eruption History. Gas. Clear Lake Volcanic Field is located about 90 miles north of San Francisco, California.The town of Clear Lake lies within the volcanic field as does much of the 43,000-acre fresh water lake of its namesake. The Clear Lake Volcanic Field is a volcanic field beside Clear Lake in California's northern Coast Ranges. Although Clear Lake volcanic field has not erupted for several millennia, sporadic volcanic-type earthquakes do occur, and the numerous hot springs and volcanic gas seeps at in the area point to its potential to erupt again. The westernmost site of Quaternary volcanism in California, the Clear Lake field is located far to the west of the Cascade Range in a complex geologic setting within the San Andreas transform fault system. These active periods are separated by quiescent spells of about 200,000 … It lies just west of the San Andreas transform system that … Post was not sent - check your email addresses! (The Clear Lake Volcanic series of Brice [1953] is herein adopted for U.S. Geological Survey usage as Clear Lake Volcanics as used by California Department of Water Resources [1962].) The Geysers steam field, which sits at the southwest margin of the volcanic region, is host to one of the world's most productive geothermal power plants, producing enough electricity for … California Volcano Observatory. Konocti last erupted about 11,000 years ago, it created what are today the youngest volcanic soils in the North Coast region of California. Consider things such as access and accommodation at the base of Clear Lake Volcanic Field, as well as the logistics of climbing to the summit. Clear Lake: volcanic field 1439 m / 4,721 ft, California, USA, 38.97°N / -122.77°W. 135 km north of San Francisco. Change ), You are commenting using your Facebook account. Mount Konocti, the largest volcano of the Clear Lake Volcanic Field at 4,299 feet, rises above Clear Lake. Drilling projects revealed a large silicic intrusive body known as 'the felsite' , which reaches to within about 1 … It covers an area of about 400 km2 in Lake County and has been intensively studied since the early 1970’s. When Mt. Jul 25, 2013 - USGS: Volcano Hazards Program - California Volcano Observatory More information Clear Lake Volcanic Field is located about 90 miles north of San Francisco, California. The Geysers The most prominent volcanic feature is 300,000 year-old Mount Konocti, rising about 975 m (3,200 ft) above the southwestern shore of the lake. The field's magma chamber also powers a geothermal field called The Geysers, which hosts the largest complex of geothermal power plants in the world. It contains about 100 eruptive units and its activity can be divided into four periods: 2.1 to 1.3 m.y., 1.1 to 0.8 m.y., 0.65 to 0.30 m.y., and 0.1 to 0.01 m.y. In addition, the USGS periodically analyzes volcanic gases and hot springs in the region. Please utilize the parts sections below if this video is too long for you. Nearby earthquakes (within 30km radius) Updated 12 Nov 2020 19:45 GMT - 46 seconds ago. Vergleichen Sie Hotels in Clear Lake Volcanic Field und buchen Sie ein günstiges Hotel in Clear Lake Volcanic Field bei FareCompare.com ( Log Out /  #1 Clear Lake Volcanic Field Mountain Updated: 2018-12-05 The Clear Lake Volcanic Field is a volcanic field beside Clear Lake in California's northern Coast Ranges. Mount Konocti was revered as sacred by the peaceful tribes, who numbered in the thousands until the early 1800s. Future Eruptions. Cobb Mountain and Mount Konocti are the two highest peaks in the volcanic field, at 4,724 feet (1,440 m) and 4,285 feet (1,306 m) respectively. ( Log Out /  Clear Lake lies within the Clear Lake Volcanic Field, as designated by the United States Geological Survey. The most recent eruptions occurred about 11,000 years ago around Mount Konocti. Hazards. 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