Golden Trout Creek

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

Kde

United States, North America Volcanic Regions

Typ (GVP)

Volcanic field

Nadmořská výška

2 886 m

Poloha

36,358°, -118,320°

The Golden Trout Creek volcanic field consists of a group of Quaternary alkali olivine basalt cinder cones and lava flows in the Toowa Valley about 25 km S of Mount Whitney. Lava flows erupted through Mesozoic granitic rocks of the Sierra Nevada batholith during episodes dating back to about 743,000 years ago, when the Little Whitney cinder cone and lava flows were erupted. The South Fork cone erupted about 176,000 years ago and produced the largest lava flow in the field, which traveled over 7 km W to the Kern River Canyon. Tunnel Cone to the north of South Fork (Red Hill) cone is undated, but its lava flow is overlain by glacial deposits and it is thought to be only slightly younger than South Fork. The youngest lava flow, from Groundhog Cone, traveled 6 km W down Golden Trout Creek on top of the South Fork flow. Based on a lack of glaciated features, Moore and Lanphere (1983) considered the Groundhog flow to be about 5-10,000 years old. Cosmogenic 36Cl exposure determinations by Browne et al. (2017b) showed a 59-52 ka eruption age for the Groundhog Cone material; this was after the Tahoe glaciation maximum, and subsequent Tioga glaciers did not reach the Toowa Valley floor, so did not affect these deposits.

Text: Smithsonian Global Volcanism Program.

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