A volcanic field is an area of Earth's crust that often has many small volcanoes close together. These fields are special because they usually have many little volcanoes instead of just one big one. The number of volcanoes needed to call an area a "field" isn’t exact, but these fields often have groups of up to 100 volcanoes.
Most volcanic fields are made up of cinder cones. These are small, steep volcanoes made from bursts of ash and rock. Sometimes, lava flows also happen in these areas, changing the land. Volcanic fields can be monogenetic, meaning each volcano erupts only once, or polygenetic, where the volcanoes can erupt many times over many years.
These fields are important for scientists who study Earth's processes. By looking at volcanic fields, we can learn more about how Earth’s crust moves and changes. They also help us understand possible future eruptions in these areas.
Description
Alexander von Humboldt noticed in 1823 that young volcanoes often appear in groups. They are common where Earth's tectonic plates move, such as subduction zones, rift zones, or along hotspot traces, but not inside stable areas called cratons.
A volcanic field is a group of volcanoes that come from the same source of magma. These volcanoes can have different types of lava, like basalt and rhyolite, and spread over large areas. Scoria cones often form these fields. They are usually 30 to 80 kilometers wide and have many cones. One big example is the Trans-Mexican Volcanic Belt, which has almost 1,000 cones.
Examples
Main article: List of volcanic fields
A volcanic field is an area where many small volcanoes are close together. These fields often have up to 100 volcanoes, such as cinder cones. They show that Earth's crust can have many places where volcanoes can form.
Canada
- Atlin Volcanic Field, British Columbia
- Desolation Lava Field, British Columbia
- Garibaldi Lake volcanic field, British Columbia
- Mount Cayley volcanic field, British Columbia
- Snowshoe Lava Field, British Columbia
- Tuya Volcanic Field, British Columbia
- Wells Gray-Clearwater volcanic field, British Columbia
- Wrangell Volcanic Field, Yukon Territory
Mexico
United States
- Boring Lava Field, Oregon
- Central Colorado volcanic field, Colorado
- Clear Lake Volcanic Field, California
- Coso Volcanic Field, California
- Indian Heaven, Washington
- Jemez Mountains, New Mexico
- Latir volcanic field, New Mexico
- Marysvale Volcanic Field, Utah
- Raton-Clayton volcanic field, New Mexico
- San Bernardino Volcanic Field, Arizona
- San Francisco volcanic field, Arizona
- San Juan volcanic field, Colorado
- Taos Plateau volcanic field, Taos County, New Mexico
- Trans-Pecos Volcanic Field, Texas
- Wrangell Volcanic Field, Alaska
Iceland
- Sundhnúkur crater row, Reykjanes Peninsula
- Central Highlands volcanic field
- Vatnajökull volcanic field, South Highlands
- Eyjafjallajökull caldera, South Highlands
- Ódáðahraun lava-field
- Oddnýjarhnjúkur-Langjökull volcanic field
- Krýsuvík volcanic field
- Laugahraun volcanic field
Africa
- Atakor volcanic field, Algeria
- Bayuda Volcanic Field, Sudan
- Haruj, Fezzan, Libya
- In Teria volcanic field, Algeria
- Manzaz volcanic field, Algeria
- Meidob Volcanic Field, Sudan
- Nemours-Nedroma, Algeria
- Oujda volcanic field, Morocco
- Oulmés volcanic field, Morocco
- Rekkame volcanic field, Morocco
- Todra volcanic field, Niger
Others
- Aguas Zarcas volcanic field, Alajuela, Costa Rica
- Antofagasta de la Sierra volcanic field, Antofagasta de la Sierra Department, Catamarca Province, Argentina
- Auckland volcanic field, North Island, New Zealand
- Tawau volcanic field, Sabah, Malaysia
- Central Skåne Volcanic Province, Sweden
- Chaîne des Puys, Auvergne, France
- Cu-Lao Re Group, Vietnam
- Laguna Volcanic Field, Philippines
- Newer Volcanics Province, Australia
- Vulkan Eifel, Germany
- Jeju Island, South Korea
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