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blobs then land on the side of the cone to weld together to form a hard crust. Fragmented cinder and spatter material and lava flows dip at angles as high as 55° away from the central vent on the eastern and southern side of Vulcan. The spatter material is thickest on the southeastern side of Vulcan, indicating that it was blown by the wind toward the south and east during the fountaining events. A solidified lava pond that consists of a massive gray
300:(later renamed the University of Albuquerque) was painted on the eastern slope of the volcano. Because of this, Vulcan was also sometimes referred to as the "J Volcano" or "J Cone." The J was repainted each fall by the college's incoming freshman class. In 1973, the J was "erased" by painting over the whitewash with a dark-colored stain, though it is still faintly visible.
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Vulcan rises 600 feet (180 m) above the valley floor. From that vantage point, the alignment of the five-mile (8.0 km) long chain of vents is particularly noticeable. Splatter forms when blobs of lava are emitted from a vent and cool as they fly through the air, and the partially molten
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Vulcan is believed to have last erupted around 150,000 years ago. The volcanoes of the field are classified as inactive (or dormant). Earth and space-based geodetic measurements indicate ongoing surface uplift above the
Socorro Magma Body at approximately two millimetres (0.1 in)/year.
245:, with access to the volcanoes during business hours, after which any vehicles are locked in and subject to fines and impound. It rests in a volcanic field approximately seven miles (11 km). northwest of Albuquerque. To the south are the volcanoes
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Smith, G.A., Florence, P.S., Castounis, A.D., Luongo, M., Moore, J.D., Throne, J., Zelley, K., 1999, Basaltic near-vent faces of Vulcan Cone, Albuquerque volcanoes, New Mexico New Mexico
Geological Society Guidebook 50, p.
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are pulling away from one another, is responsible for much of the volcanic activity and mountain-building that occurs throughout the area.
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8 to 20 inches (200 to 510 mm) across and 300 feet (91 m) long are preserved on the northeast and northwest flanks of Vulcan.
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that were active in the central vent and in smaller vents on flanks of the cone. These flank vents formed the
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with weakly developed columnar jointing occupies the crater of Vulcan. Radial, sinuous
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seen today. It is believed to have last erupted around 150,000 years ago.
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268:, The Turquoise Mountain), and to the east are the cities of
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Vulcan lies in a large geological zone known as the
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366:"'The Volcanoes' Have Names, But You Have To Dig"
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133:. It is the largest of six volcanoes in the
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298:College of St. Joseph on the Rio Grande
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470:Stratovolcanoes of the United States
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364:Compton, K. C. (August 13, 1985).
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145:volcano, formed primarily by
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243:Petroglyph National Monument
139:Petroglyph National Monument
70:Petroglyph National Monument
46:6,033 ft (1,839 m)
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257:. To the west is the giant
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350:Magma Uplift in New Mexico
135:Albuquerque volcanic field
425:Vulcan (inactive volcano)
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465:Quaternary United States
200:35.141389°N 106.771972°W
56:600 ft (180 m)
440:Volcanoes of New Mexico
131:Albuquerque, New Mexico
234:'s surface, where two
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460:Pleistocene volcanoes
427:at Wikimedia Commons
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292:From 1951 to 1973, a
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161:Description
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127:West Mesa
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