Coso Volcanic Field

sopka (bez známé erupce za posledních ~12 000 let), United States, North America Volcanic Regions

Kde

United States, North America Volcanic Regions

Typ (GVP)

Lava dome(s)

Nadmořská výška

2 400 m

Poloha

36,030°, -117,820°

The Coso Volcanic Field, located E of the Sierra Nevada Range at the western edge of the Basin and Range province, consists of Pliocene to Quaternary rhyolitic lava domes and basaltic cinder cones covering a 400 km2 area. Much of the field lies within the China Lake Naval Weapons Center. Active fumaroles and thermal springs are present in an area that is a producing geothermal field. The youngest eruptions were chemically bimodal, forming basaltic lava flows along with 38 rhyolitic lava flows and domes. The latest dated eruption formed the basaltic Volcano Peak cinder cone and lava flow, and was K-Ar dated at 39,000 +/- 33,000 years ago. The youngest lava dome may be Holocene based on geomorphological evidence (Monastero, 1998 pers. comm.).

Text: Smithsonian Global Volcanism Program.

Údaje o sopce: Smithsonian Global Volcanism Program. Další sopky a průduchy.