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Large volume volcanic eruptions in the Basin and Range Province include
Basin and Range Basin and range topography is characterized by alternating parallel mountain ranges and valleys. It is a result of crustal extension due to mantle upwelling, gravitational collapse, crustal thickening, or relaxation of confining stresses. The e ...
eruptions in
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...
,
Idaho Idaho ( ) is a state in the Pacific Northwest region of the Western United States. To the north, it shares a small portion of the Canada–United States border with the province of British Columbia. It borders the states of Montana and Wyomi ...
,
Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
,
New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ke ...
,
Texas Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by ...
,
Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
,
Nevada Nevada ( ; ) is a state in the Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the 7th-most extensive, ...
,
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 s ...
and
Oregon Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. T ...
, as well as those of the
Long Valley Caldera Long Valley Caldera is a depression in eastern California that is adjacent to Mammoth Mountain. The valley is one of the Earth's largest calderas, measuring about long (east-west), wide (north-south), and up to deep. Long Valley was formed ...
geological province and the
Yellowstone hotspot The Yellowstone hotspot is a volcanic hotspot in the United States responsible for large scale volcanism in Idaho, Montana, Nevada, Oregon, and Wyoming, formed as the North American tectonic plate moved over it. It formed the eastern Snake Riv ...
.


Volcanic fields

Some of the
volcanic field A volcanic field is an area of Earth's crust that is prone to localized volcanic activity. The type and number of volcanoes required to be called a "field" is not well-defined. Volcanic fields usually consist of clusters of up to 100 volcanoes ...
s within the Basin and Range Province: Northwestern Nevada, the
Modoc Plateau __NOTOC__ The Modoc Plateau lies in the northeast corner of California as well as parts of Oregon and Nevada. Nearly of the Modoc National Forest are on the plateau between the Medicine Lake Highlands in the west and the Warner Mountains in the ...
, Central Nevada, the Great Basin, Southwestern Nevada, the
Mojave Desert The Mojave Desert ( ; mov, Hayikwiir Mat'aar; es, Desierto de Mojave) is a desert in the rain shadow of the Sierra Nevada mountains in the Southwestern United States. It is named for the indigenous Mojave people. It is located primarily ...
, and the
Long Valley Caldera Long Valley Caldera is a depression in eastern California that is adjacent to Mammoth Mountain. The valley is one of the Earth's largest calderas, measuring about long (east-west), wide (north-south), and up to deep. Long Valley was formed ...
region. Named ones include:
Coso Volcanic Field The Coso Volcanic Field is located in Inyo County, California, at the western edge of the Basin and Range Province, Basin and Range geologic province and northern region of the Mojave Desert. The Fossil Falls are part of the Coso Field, created ...
, Mono Lake Volcanic Field, Marysvale Volcanic Field,
San Juan volcanic field The San Juan volcanic field is part of the San Juan Mountains in southwestern Colorado. It consists mainly of volcanic rocks that form the largest remnant of a major composite volcanic field that covered most of the southern Rocky Mountains in t ...
, Indian Peak,
Central Colorado volcanic field The central Colorado volcanic field (CCVF) is a volcanic field in Park County, Colorado. It is located in the southern Rocky Mountains and covered a roughly triangular area centered on the Thirtynine Mile volcanic area and extending from the Sa ...
, Jemez volcanic lineament,
Mogollon-Datil volcanic field The Mogollon-Datil volcanic field is a large () silicic volcanic field in western New Mexico (Mogollon Mountains- Datil, New Mexico). It is a part of an extensive Eocene to Oligocene volcanic event which includes the San Juan volcanic field in s ...
, Santa Rosa-Calico, and
Boot Heel volcanic field The Boot Heel volcanic field is located in the Bootheel region of southwest New Mexico, adjacent areas of southeastern Arizona, and northwest Mexico. The field covers an area of more than 24,000 km2.Baldridge, W. Scott, ''Geology of the Ame ...
.


Geological features

Many geological features in
Western United States The Western United States (also called the American West, the Far West, and the West) is the region comprising the westernmost states of the United States. As American settlement in the U.S. expanded westward, the meaning of the term ''the We ...
have a Northeastern orientation, the
North American craton North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating direction or geography. Etymology The word ''north'' is ...
motion has the same orientation as well. For example: the Trans-Challis fault zone,
Idaho Idaho ( ) is a state in the Pacific Northwest region of the Western United States. To the north, it shares a small portion of the Canada–United States border with the province of British Columbia. It borders the states of Montana and Wyomi ...
; the Snake River in
Oregon Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. T ...
; the
Garlock Fault The Garlock Fault is a left-lateral strike-slip fault running northeast–southwest along the north margins of the Mojave Desert of Southern California, for much of its length along the southern base of the Tehachapi Mountains. Geography Stretc ...
,
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...
; the
Colorado River The Colorado River ( es, Río Colorado) is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and northern Mexico. The river drains an expansive, arid watershed that encompasses parts of seven U.S. s ...
in
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...
; the
Colorado Mineral Belt The Colorado Mineral Belt (CMB) is an area of ore deposits from the La Plata Mountains in Southwestern Colorado to near the middle of the state at Boulder, Colorado and from which over 25 million troy ounces (778 t) of gold were extracted begin ...
; Crater Flat- Reveille Range-
Lunar Crater Lunar craters are impact craters on Earth's Moon. The Moon's surface has many craters, all of which were formed by impacts. The International Astronomical Union currently recognizes 9,137 craters, of which 1,675 have been dated. History The wor ...
lineament, the Northwestern Nevada volcanic field; the San Juan caldera cluster,
Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
; the Socorro-Magdalena caldera cluster,
New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ke ...
; Jemez volcanic lineament (
Raton hotspot The Jemez Lineament is a chain of late Cenozoic volcanic fields, long, reaching from the Springerville and White Mountains volcanic fields in East-Central Arizona to the Raton-Clayton volcanic field in Northeastern New Mexico. The lineament w ...
trail); and the Yellowstone hotspot trail. But the Yellowstone hotspot trail was modified through faults and extension.


Geology

Prior to the Eocene Epoch (55.8 ± 0.2 to 33.9 ± 0.1 Ma) the convergence rate of the Farallon and North American Plates was fast and the angle of subduction was shallow. During the
Eocene The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', " ...
the
Farallon Plate The Farallon Plate was an ancient oceanic plate. It formed one of the three main plates of Panthalassa, alongside the Phoenix Plate and Izanagi Plate, which were connected by a triple junction. The Farallon Plate began subducting under the west ...
subduction-associated compressive forces of the
Laramide orogeny The Laramide orogeny was a time period of mountain building in western North America, which started in the Late Cretaceous, 70 to 80 million years ago, and ended 35 to 55 million years ago. The exact duration and ages of beginning and end of the ...
ended, plate interactions changed from orthogonal compression to oblique strike-slip, and volcanism in the Basin and Range Province flared up. It is suggested that this plate continued to be underthrust until about 19 Ma, at which time it was completely consumed and volcanic activity ceased, in part.
Olivine 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 a ...
from the
oceanic ridge A mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics. It typically has a depth of about and rises about above the deepest portion of an ocean basin. This feature is where seafloor spreading takes place along a diverg ...
erupted around 17 Ma and extension began. The extension resulted in roughly north-south-trending faults, the Great Basin, the Walker trough, the
Owens Owens may refer to: Places in the United States *Owens Station, Delaware * Owens Township, St. Louis County, Minnesota *Owens, Missouri *Owens, Ohio *Owens, Virginia People * Owens (surname), including a list of people with the name * Owens Br ...
graben, and the
Rio Grande rift The Rio Grande rift is a north-trending continental rift zone. It separates the Colorado Plateau in the west from the interior of the North American craton on the east. The rift extends from central Colorado in the north to the state of Chihuahu ...
, for instance.


List of large volume eruptions in the Basin and Range Province

The large volume eruptions in the Basin and Range Province include: *
Long Valley Caldera Long Valley Caldera is a depression in eastern California that is adjacent to Mammoth Mountain. The valley is one of the Earth's largest calderas, measuring about long (east-west), wide (north-south), and up to deep. Long Valley was formed ...
; Mono County, California, USA; 758.9 ± 1.8 ka; VEI 7; of
Bishop Tuff The Bishop Tuff is a welded tuff that formed 764,800 ± 600 years ago as a rhyolitic pyroclastic flow during the approximately six day eruption that created the Long Valley Caldera. Large outcrops of the tuff are located in Inyo and Mono Countie ...
. *
Valles Caldera Valles Caldera (or Jemez Caldera) is a wide volcanic caldera in the Jemez Mountains of northern New Mexico. Hot springs, streams, fumaroles, natural gas seeps and volcanic domes dot the caldera floor landscape. The highest point in the calde ...
, New Mexico, USA; around 1.15 Ma; VEI 7; around of the Tshirege formation, Upper Bandelier eruption.Izett, Glen A. (1981). *Valles Caldera, New Mexico, USA; around 1.47 Ma (Lower Bandelier eruption, the Otawi). *
Yellowstone hotspot The Yellowstone hotspot is a volcanic hotspot in the United States responsible for large scale volcanism in Idaho, Montana, Nevada, Oregon, and Wyoming, formed as the North American tectonic plate moved over it. It formed the eastern Snake Riv ...
(?), Lake Owyhee volcanic fields; 15.0 to 15.5 Ma. *Yellowstone hotspot (?), Northwest Nevada volcanic field, Virgin Valley, High Rock, Hog Ranch, and unnamed calderas; West of the Pine Forest Range, Nevada; 15.5 to 16.5 Ma; Tuffs: Idaho Canyon, Ashdown, Summit Lake, and Soldier Meadow.Matthew A. Coble, and Gail A. Mahood (2008). * Columbia River Basalt Province: Yellowstone hotspot releases a huge pulse of volcanic activity, the first eruptions were near the Oregon-Idaho-Washington border. Columbia River and Steens flood basalts, Pueblo Mountains,
Steens Mountain Steens Mountain is in the southeastern part of the U.S. state of Oregon, and is a large fault-block mountain. Located in Harney County, it stretches some north to south, and rises from the west side the Alvord Desert at elevation of about t ...
, Washington, Oregon, and Idaho; most vigorous eruptions were from 14 to 17 Ma. ** Columbia River flood basalts, ** Steens flood basalts, * Mount Belknap Caldera (), Marysvale Volcanic Field, southwestern Utah; 19 Ma; of tephra (Joe Lott member). * Big John Caldera (), Marysvale Volcanic Field, southwestern Utah; 22 Ma; of Delano Peak Tuff member. * Monroe Peak Caldera (), Marysvale Volcanic Field, southwestern Utah; 23 Ma; of Osiris Tuff.Lipman (1984). * Lake City calderas ( wide),
San Juan volcanic field The San Juan volcanic field is part of the San Juan Mountains in southwestern Colorado. It consists mainly of volcanic rocks that form the largest remnant of a major composite volcanic field that covered most of the southern Rocky Mountains in t ...
, Colorado; 23.1 Ma; of Sunshine Peak Tuff.Lipman (1976).Hon and Lipman (1976). * Turkey Creek Caldera ( wide),
Chiricahua National Monument Chiricahua National Monument is a unit of the National Park System located in the Chiricahua Mountains of southeastern Arizona. The monument was established on April 18, 1924, to protect its extensive hoodoos and balancing rocks. The Faraway Ra ...
, Arizona; 25 Ma; of Rhyolite Canyon Formation. *Lake City calderas ( wide), San Juan volcanic field, Colorado; 25.9 Ma; of tephra. * Questa Caldera ( wide), Questa-Latir volcanic locus,
Questa, New Mexico Questa is a village in Taos County, New Mexico, United States. The population was 1,770 at the 2010 census. The village has trails into the Rio Grande Gorge, trout fishing, and mountain lakes with trails that access the Sangre de Cristo Mount ...
; 26 Ma, of Amalia Tuff. * Creede Caldera ( wide),
San Juan Mountains The San Juan Mountains is a high and rugged mountain range in the Rocky Mountains in southwestern Colorado and northwestern New Mexico. The area is highly mineralized (the Colorado Mineral Belt) and figured in the gold and silver mining industry ...
,
Wheeler Geologic Area The Wheeler Geologic Area is a highly eroded outcropping of layers of volcanic ash, in the La Garita Mountains of Mineral County, in southern Colorado in the western United States about 10 miles east north-east of Creede. The ash is the res ...
, San Juan volcanic field, Colorado; 26.7 Ma; less than of Snowshoe Mountain Tuff.Manson ''et al.'' (2004). * San Luis caldera complex ( wide), Wheeler Geologic Area, San Juan volcanic field, Colorado; 26.8 Ma, of Nelson Mountain Tuff.Lipman (2000). *San Luis caldera complex ( wide), Wheeler Geologic Area, San Juan volcanic field, Colorado; 26.9 Ma, of Cebola Creek Tuff. *San Luis caldera complex ( wide), Wheeler Geologic Area, San Juan volcanic field, Colorado; 27 Ma, of Rat Creek Tuff. * Three Creeks Caldera ( wide), Marysvale Volcanic Field,
Cove Fort Cove Fort is a fort, unincorporated community, and historical site located in Millard County, Utah. It was founded in 1867 by Ira Hinckley (the paternal grandfather of Gordon B. Hinckley) at the request of Brigham Young. One of its distinctiv ...
-Sulphurdale area, southwestern Utah; 27 Ma; of Three Creeks Tuff Member of the Bullion Canyon Volcanics. * South River Caldera, Wheeler Geologic Area, San Juan volcanic field, Colorado; 27.1 Ma, more than of Wason Park Tuff. * Central San Juan Caldera (concealed), San Juan volcanic field, Colorado; 27.2 Ma, of Blue Creek Tuff. * Bachelor Caldera (), Wheeler Geologic Area, San Juan volcanic field, Colorado; 27.35 Ma; of Carpenter Ridge Tuff. * Silverton Caldera ( wide), San Juan volcanic field, Colorado; 27.6 Ma, of Crystal Lake Tuff. *
La Garita Caldera La Garita Caldera is a large caldera in the San Juan volcanic field in the San Juan Mountains near the town of Creede in southwestern Colorado, United States. It is west of La Garita, Colorado. The eruption that created the La Garita Calde ...
(), Wheeler Geologic Area, San Juan volcanic field, Colorado; VEI 8; more than of Fish Canyon Tuff was blasted out in a major single eruption about 27.8 Ma.Bachmann ''et al.'' (2002). * San Juan Caldera (), San Juan volcanic field, Colorado; 28 Ma; more than of Sapinero Mesa Tuff. * Uncompahgre Caldera (),
Uncompahgre National Forest Uncompahgre National Forest is a U.S. National Forest covering 955,229 acres (1,492.55 sq mi, or 3,865.68 km2) in (in descending order of land area) parts of Montrose County, Colorado, Montrose, Mesa County, Colorado, Mesa, San Miguel Count ...
, San Juan volcanic field, Colorado; 28.1 Ma; more than of Dillon/Sapinero Mesa Tuffs.Lipman et al. (1973). * Lost Lake Caldera ( wide), San Juan volcanic field, Colorado; 28.2 Ma, of Blue Mesa Tuff. * Platoro calderas, San Juan volcanic field, Platoro, Conejos County, Colorado; 28.2 Ma; of Chiquito Peak Tuff. * Central San Juan Caldera (concealed), San Juan volcanic field, Colorado; 28.3 Ma; of Masonic Park Tuff. * Ute Creek Caldera, Central Colorado volcanic field, Colorado; 28.3 Ma; of Ute Ridge Tuff.Steven and Lipman (1976).


List of Rupelian calderas

The
Rupelian The Rupelian is, in the geologic timescale, the older of two ages or the lower of two stages of the Oligocene Epoch/ Series. It spans the time between . It is preceded by the Priabonian Stage (part of the Eocene) and is followed by the Chattian ...
age/stage ( Paleogene period/system, Oligocene epoch/series) spans the time between 33.9 ±0.1 Ma and 28.4 ±0.1 Ma (million years ago). * Bursum Caldera (size: 40 x 30 km),
Mogollon-Datil volcanic field The Mogollon-Datil volcanic field is a large () silicic volcanic field in western New Mexico (Mogollon Mountains- Datil, New Mexico). It is a part of an extensive Eocene to Oligocene volcanic event which includes the San Juan volcanic field in s ...
, New Mexico; 28.5 Ma ±0.5; of Bloodgood Canyon Tuff.Ratté et al. (1984). *Bursum Caldera (size: 40 x 30 km), Mogollon-Datil volcanic field, New Mexico; 28.5 Ma ±0.5; of Apache Springs Tuff. * San Juan Caldera (size: 24 x 22 km),
San Juan volcanic field The San Juan volcanic field is part of the San Juan Mountains in southwestern Colorado. It consists mainly of volcanic rocks that form the largest remnant of a major composite volcanic field that covered most of the southern Rocky Mountains in t ...
, Colorado; 28.5 Ma; of tephra. * Summitville Caldera (size: 12 x 8 km), San Juan volcanic field, Colorado; 28.5 Ma; of Ojito Creek/ La Jadero Tuffs.Lipman (1975).Lipman et al. (1996). * Mount Hope (size: 15 km), San Juan volcanic field, Colorado; 29 Ma; of Masonic Park Tuff. *Around White Rock caldera (size: 50 km North-South),
White Rock Mountains The White Rock Mountains are a north-northwest trending mountain range located in eastern Lincoln County, Nevada with the eastern slopes of the range extending into Beaver and Iron counties of Utah. The north end of the range merges with the Wils ...
, Great Basin, Nevada; 29.02 Ma ±0.04; of Lund Tuff. * Ute Creek (size: 8 km wide), San Juan volcanic field, Colorado; 29 Ma; of Ute Ridge Tuff. * Platoro calderas (size: 12 x 18 km), San Juan volcanic field, Platoro, Conejos County, Colorado; 29.5 Ma; of Black Mountain Tuff. * Indian Peak, Eastern Nevada; 29.5 Ma; more than of Wah Wah Springs Tuff. * Platoro calderas (size: 18 x 22 km), San Juan volcanic field, Platoro, Conejos County, Colorado; 30 Ma; of La Jara Canyon Tuff. * Goodsight-Cedar Hills volcano-tectonic depression ( Bell Top Formation), south-central New Mexico; 30.5 Ma ±1.5, of tephra (Bell Top Formation). * William's Ridge, Central Nevada; 31.4 Ma; of Windous Butte Tuff. * North Pass Caldera, Cochetopa Hills, Central Colorado volcanic field; 32.25 Ma; of Saguache Creek Tuff. * Organ Caldera (size: 16 km wide),
Organ Mountains The Organ Mountains (also known as La Sierra de los Órganos) are a rugged mountain range in southern New Mexico in the Southwestern United States. Organ Mountains–Desert Peaks National Monument was declared a national monument on May 21, 2 ...
, New Mexico; 32 Ma, of Cueva Soledad Rhyolite.Seager (1973). * Chinati Caldera (size: 30 x 20 km), Chinati Mountains, Texas; 32.5 Ma ±0.5, of Mitchel Mesa Rhyolite. * Bonanza (size: 12 km wide), Central Colorado volcanic field; Colorado; 32.5 Ma, more than of Bonanza Tuff. *
Cowboy Rim Cowboy Rim is a cliff that runs along the Continental Divide in the Animas Mountains of Hidalgo County, New Mexico. It runs west from a point at to its highpoint is at an elevation of at just east of Elephant Butte. Here Cowboy Rim overlooks t ...
(size: 26 x 18 km),
Animas Mountains The Animas Mountains are a small mountain range in Hidalgo County, within the " Boot-Heel" region of far southwestern New Mexico, in the United States. They extend north–south for about 30 miles (50 km) along the Continental Divide,Since ...
,
Hidalgo County, New Mexico Hidalgo County ( es, Condado de Hidalgo) is the southernmost county of the U.S. state of New Mexico. As of the 2010 census, the population was 4,894. The county seat and largest city is Lordsburg. A bill creating Hidalgo from the southern part ...
; 33 Ma, of Gillespie Tuff. * Emory Caldera (size: 25 x 55 km), Mogollon-Datil volcanic field,
City of Rocks State Park City of Rocks State Park is a state park in New Mexico, consisting of large sculptured rock formations in the shape of pinnacles or boulders rising as high as . Geology The bedrock forming City of Rocks was created 34.9 million years ago by ...
; 33 Ma; VEI 8; of Kneeling Nun Tuff. * Socorro Caldera (size: 25 x 35 km),
Rio Grande rift The Rio Grande rift is a north-trending continental rift zone. It separates the Colorado Plateau in the west from the interior of the North American craton on the east. The rift extends from central Colorado in the north to the state of Chihuahu ...
, Socorro, New Mexico; 33 Ma, of Hells Mesa Rhyolite. *Marshall Creek, Thirtynine Mile volcanic area, Central Colorado volcanic field; Colorado; 33.7 Ma; more than of Thorn Ranch Tuff. * Mount Aetna (size: 10 km wide), Central Colorado volcanic field; Colorado; 33.81 Ma, of Badger Creek Tuff. * Grizzly Peak Caldera (size: 12 km wide), Central Colorado volcanic field; Colorado; 34.31 Ma; of Grizzly Peak Rhyolite.McIntosh and Chapin (2004). * Juniper Caldera (size: 25 km), Animas Mountains, Hidalgo County, New Mexico; 35 Ma; of Oak Creek Tuff.Erb (1979). *
Mount Princeton Mount Princeton is a high and prominent mountain summit of the Collegiate Peaks in the Sawatch Range of the Rocky Mountains of North America. The fourteener is located in San Isabel National Forest, southwest ( bearing 225°) of the Town o ...
(eroded), Central Colorado volcanic field; Colorado; 35.3 Ma ±0.6; more than of Wall Mountain Tuff.Lipman and Calvert (2003). *
Davis Mountain Davis Mountain is a mountain located in Adirondack Mountains of New York New York most commonly refers to: * New York City, the most populous city in the United States, located in the state of New York * New York (state), a state in the northe ...
s, Texas; 35.35 Ma ±0.6; of tuffs of Wild Cherry, Lavas of Casket Mountain. *Davis Mountains, Texas; 35.61 Ma ±0.09; of Barrel Springs Formation and ash flow tuff. * Quitman Caldera (size: 15 x 10 km), Quitman Mountains,
Hudspeth County, Texas Hudspeth County is a county located in the U.S. state of Texas. As of the 2020 census, the population was 3,202. Its county seat is Sierra Blanca, and the largest community is Fort Hancock. The county is named for Claude Benton Hudspeth, a ...
; 36 Ma; of Square Peak Volcanics. *Davis Mountains, Texas; 36.2 Ma ±0.6; of Mafic lavas. *Davis Mountains, Texas; 36.33 Ma ±0.13; of tephra (Paisano Volcano). *Davis Mountains, Texas; 36.51 Ma ±0.05; of Adobe Canyon and Limpia Formations. *
Davis Mountains The Davis Mountains, originally known as Limpia Mountains, are a range of mountains in West Texas, located near Fort Davis, after which they are named. The fort was named for then United States Secretary of War and later Confederate President J ...
(fissures), Texas; 36.82 Ma ±0.08; of Flood rhyolites, rhyolite domes, and Gomez Tuff.Henry et al. (1994). * Muir Caldera (size: 26 x 18 km wide), Hidalgo County, New Mexico; 37 Ma; of Woodhaul Canyon tephra. * Infernito Caldera (size: 12 km wide),
Trans-Pecos The Trans-Pecos, as originally defined in 1887 by the Texas geologist Robert T. Hill, is the portion of Texas that lies west of the Pecos River. The term is considered synonymous with Far West Texas, a subdivision of West Texas. The Trans-Peco ...
, Texas; 37.5 Ma ±0.5; of Buckshot Tuff. * Thomas Caldera (size: 16 x 25 km wide), Delta, Utah; 39 Ma; of Mount Laird Tuff. * Twin Peaks Caldera (size: 20 km), Challis volcanic field, Custer, Idaho; 45 Ma, of Challis Creek Tuff. * Van Horn cauldron complex (size: 34 x 48 km), Challis volcanic field,
Custer, Idaho Custer is a ghost town in Custer County, Idaho, United States. Established in 1877, it is at (44.3874133, -114.6959118), at an elevation of 6,470 feet (1,972 m). It lies along Yankee Fork Road southwest of the city of Challis, within ...
; 46 Ma ±0.6; unknown amount of Elis Creek Tuff. * Silver Bell Caldera (size: 8 km wide), Arizona; 55.8 Ma; unknown amount of Mount Laird Tuff.Sawyer and Lipman (1983). *Silver Bell Caldera (size: 8 km wide), Arizona; 68 Ma; of Lithic Tuff. * Tucson Mountain Caldera (size: 25 km wide),
Tucson Mountains The Tucson Mountains ( O'odham: Cuk Doʼag) are a minor mountain range west of Tucson, Arizona. The Tucson Mountains, including Wasson Peak, are one of four notable mountain ranges surrounding the Tucson Basin. The Santa Catalina Mountains l ...
, Arizona; 73 Ma; of Cat Mountain Tuff.


References


Sources

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** **


Columbia River Basalt Province-sources

* * * * * * *Web citations: ** ** **


Peter W. Lipman – sources

* * * * * * * * * * * * * * * * * * * * *


Maps

*Overview map at Basin and Range Province.
Map of the Basin and Range Province
*Map: Thelin and Pike (1991)
Landforms of the conterminous United States
– A digital shaded-relief portrayal, USGS Map I-2206

*Great Basin/Nevada ** ** ** *** Supplemental material:
Columbia River Basalt Group The Columbia River Basalt Group is the youngest, smallest and one of the best-preserved continental flood basalt province on Earth, covering over mainly eastern Oregon and Washington, western Idaho, and part of northern Nevada. The basalt grou ...
,
eruptive loci
*Great Basin/Utah ** *Colorado ** ** *New Mexico ** ** **
Mogollon-Datil volcanic field The Mogollon-Datil volcanic field is a large () silicic volcanic field in western New Mexico (Mogollon Mountains- Datil, New Mexico). It is a part of an extensive Eocene to Oligocene volcanic event which includes the San Juan volcanic field in s ...
*** citing from {{DEFAULTSORT:Large Volume Volcanic Eruptions In The Basin And Range Province Basin and Range Province
Volcanism Volcanism, vulcanism or volcanicity is the phenomenon of eruption of molten rock (magma) onto the surface of the Earth or a solid-surface planet or moon, where lava, pyroclastics, and volcanic gases erupt through a break in the surface called a ...
List of large volume volcanic eruptions in the Basin and Range Province Calderas of the United States Volcanic fields of the western United States Cenozoic volcanism Prehistoric volcanic events VEI-8 eruptions VEI-7 eruptions Volcanic eruptions in the United States