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Geologic units containing Trachyte

Trachyte
A volcanic rock defined in the QAPF diagram as having Q/(Q+A+P) < 20% or F/(F+A+P) < 10%, and P/(P+A) between 10 and 35%...
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Arkansas - Arizona - California - Idaho - Missouri - New Hampshire - New Jersey - New Mexico - Nevada - New York - South Dakota - Texas - Vermont

Arkansas

Arizona

Holocene to middle Pliocene basaltic rocks (Middle Pliocene to Holocene)
Mostly dark-colored basaltic lava and cinders young enough that some original volcanic landforms are still apparent. Includes a small amount of andesite, dacite, and rhyolite. Rocks of this map unit are largely restricted to six areas widely distributed in Arizona: San Francisco and Uinkaret volcanic fields in northern Arizona (0-4 Ma); Springerville (0-4 Ma) and San Carlos (0-2 Ma) volcanic fields in east-central Arizona; and San Bernardino (0-1 Ma) and Sentinel (1-4 Ma) volcanic fields in southern Arizona. Rocks of this unit are also present in the extreme southwestern part of Arizona where they were erupted at the edge of the Pinacate volcanic field (0-2 Ma) in northwestern Sonora. (0-4 Ma)
Middle Miocene to Oligocene volcanic rocks (Oligocene to Middle Miocene)
Lava, tuff, fine-grained intrusive rock, and diverse pyroclastic rocks. These compositionally variable volcanic rocks include basalt, andesite, dacite, and rhyolite. Thick felsic volcanic sequences form prominent cliffs and range fronts in the Black (Mohave County), Superstition, Kofa, Eagletail, Galiuro, and Chiricahua Mountains. This unit includes regionally extensive ash-flow tuffs, such as the Peach Springs tuff of northwestern Arizona and the Apache Leap tuff east of Phoenix. Most volcanic rocks are 20-30 Ma in southeastern Arizona and 15 to 25 Ma in central and western Arizona, but this unit includes some late Eocene rocks near the New Mexico border in east-central Arizona. (11-38 Ma)

California

Idaho

Missouri

New Hampshire

New Jersey

New Mexico

Nevada

Andesite and related rocks of intermediate composition (Late Miocene to Middle Miocene)
ANDESITE AND RELATED ROCKS OF INTERMEDIATE COMPOSITION-Flows and breccias
Andesite and related rocks of intermediate composition (Early Oligocene to Early Miocene)
ANDESITE AND RELATED ROCKS OF INTERMEDIATE COMPOSITION-Flows and breccias
Ash-flow tuffs and tuffaceous sedimentary rocks (Middle Miocene to Late Miocene)
ASH-FLOW TUFFS AND TUFFACEOUS SEDIMENTARY ROCKS
Ash-flow tuffs, rhyolitic flows, and shallow intrusive rocks (Middle Miocene to Late Miocene)
ASH-FLOW TUFFS, RHYOLITIC FLOWS, AND SHALLOW INTRUSIVE ROCKS
Rhyolitic flows and shallow intrusive rocks (Late Eocene to Middle Eocene)
RHYOLITIC FLOWS AND SHALLOW INTRUSIVE ROCKS
Rhyolitic flows and shallow intrusive rocks (Early Oligocene to Early Miocene)
RHYOLITIC FLOWS AND SHALLOW INTRUSIVE ROCKS
Rhyolitic flows and shallow intrusive rocks (Middle Miocene to Late Miocene)
RHYOLITIC FLOWS AND SHALLOW INTRUSIVE ROCKS
Rhyolitic flows and shallow intrusive rocks (Miocene to Quaternary)
RHYOLITIC FLOWS AND SHALLOW INTRUSIVE ROCKS
Shale, sandstone, volcanogenic clastic rocks, andesite, rhyolite, and locally thick carbonate units (Late Triassic to Early Cretaceous)
SHALE, SANDSTONE, VOLCANOGENIC CLASTIC ROCKS, ANDESITE, RHYOLITE, AND LOCALLY THICK CARBONATE UNITS-Undivided sequence locally containing recognizable equivalents of the Luning and Dunlap Formations
Welded and nonwelded silicic ash-flow tuffs (Late Eocene to Middle Eocene)
WELDED AND NONWELDED SILICIC ASH-FLOW TUFFS-Locally includes thin units of air-fall tuff and sedimentary rock
Welded and nonwelded silicic ash-flow tuffs (Early Oligocene to Early Miocene)
WELDED AND NONWELDED SILICIC ASH-FLOW TUFFS-Locally includes thin units of air-fall tuff and sedimentary rock

New York

South Dakota

Texas

Bofecillos volcano volcanic rocks, including units 1-8 of Rawls Formation and lava flows in upper part of Fresno Formation (Phanerozoic | Cenozoic | Tertiary | Oligocene)
Bofecillos volcano volcanic rocks, including units 1-8 of Rawls Formation and lava flows in upper part of Fresno Formation
Chinati Mountains caldera volcanic rocks, including Chinati Mountains Group, Mitchell Mesa Ignimbrite, and type area of Petan Basalt (Phanerozoic | Cenozoic | Tertiary | Oligocene)
Chinati Mountains caldera volcanic rocks, including Chinati Mountains Group, Mitchell Mesa Ignimbrite, and type area of Petan Basalt
Delaho and Rawls Formations, undivided (Phanerozoic | Cenozoic | Tertiary | Oligocene Miocene)
Delaho and Rawls Formations, undivided NOTE: This unit is represented within the map unit explanation of (Geol. Map of Texas, 1992, Bur. Econ. Geol.) but does not occur on the map and is NOT included in the spatial data.
Duff Formation, Decie Member from Paisano caldera (Phanerozoic | Cenozoic | Tertiary | Oligocene-Early)
Duff Formation, Decie Member from Paisano caldera
Eagle Mountains caldera volcanic rocks (Phanerozoic | Cenozoic | Tertiary | Oligocene)
Eagle Mountains caldera volcanic rocks
Eocene intrusive rocks (Phanerozoic | Cenozoic | Tertiary | Eocene)
Eocene intrusive rocks
Infiernito caldera volcanic rocks including Capote Mountain Tuff, Tsh2 of Shely Group, Buckshot Ignimbrite, and Tm1 of Morita Ranch Formation (Phanerozoic | Cenozoic | Tertiary | Eocene-Late)
Infiernito caldera volcanic rocks including Capote Mountain Tuff, Tsh2 of Shely Group, Buckshot Ignimbrite, and Tm1 of Morita Ranch Formation
older volcanic rocks of Davis and Barilla Mountains, including Sheep Pasture, Sleeping Lion, Frazier Canyon, Adobe Canyon, and Limpia formations, Gomez Tuff, Star Mountain Rhyolite, and Huelster Formation (Phanerozoic | Cenozoic | Tertiary | Eocene-Late)
older volcanic rocks of Davis and Barilla Mountains, including Sheep Pasture, Sleeping Lion, Frazier Canyon, Adobe Canyon, and Limpia formations, Gomez Tuff, Star Mountain Rhyolite, and Huelster Formation
Oligocene intrusive rocks (Phanerozoic | Cenozoic | Tertiary | Oligocene)
Oligocene intrusive rocks
Quitman Mountains caldera volcanic rocks and volcanic rocks of sneed (Cox) Mountain and west of Victorio Peak (Phanerozoic | Cenozoic | Tertiary | Oligocene)
Quitman Mountains caldera volcanic rocks and volcanic rocks of sneed (Cox) Mountain and west of Victoria Peak
Tarantula Gravel (Phanerozoic | Cenozoic | Tertiary | Miocene)
Tarantula Gravel
Tm2 and Tm3 units of Morita Ranch Formation (possibly from Cienega Mountain area) (Phanerozoic | Cenozoic | Tertiary | Oligocene)
Tm2 and Tm3 units of Morita Ranch Formation (possibly from Cienega Mountain area)
Van Horn Mountains caldera volcanic rocks (Phanerozoic | Cenozoic | Tertiary | Eocene)
Van Horn Mountains caldera volcanic rocks
Wiley Mountain caldera volcanic rocks (Phanerozoic | Cenozoic | Tertiary | Eocene)
Wiley Mountain caldera volcanic rocks
younger volcanic rocks of Davis Mountains area including Brooks Mountain, Goat Canyon, Medley, Barrel Springs, Wild Cherry, Eppenaurer Ranch, Mount Locke, and Merrill Formations (Phanerozoic | Cenozoic | Tertiary | Oligocene-Early)
younger volcanic rocks of Davis Mountains area including Brooks Mountain, Goat Canyon, Medley, Barrel Springs, Wild Cherry, Eppenaurer Ranch, Mount Locke, and Merrill Formations

Vermont