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The Uinkaret volcanic field is an area of monogenetic volcanoes in northwestern Arizona, United States, located on the north rim of the Grand Canyon. [ 2 ] Lava flows from the Uinkaret volcanic field that have cascaded down into the Grand Canyon, damming the Colorado River , have been used to date the canyon's carving. [ 3 ]
Vulcan's Throne is a cinder cone volcano and a prominent landmark on the North Rim of the Grand Canyon in Arizona, United States. [4] The volcano is adjacent the Colorado River, (thousands of feet above the river) as it is the source material for Lava Falls and Lava Falls Rapids (Vulcan Rapids) one of the largest rapids of the Colorado.
The next pre-collapse rhyolite eruption is the Green Canyon Flow in the north of Big Bend Ridge, with a mapped volume of about 5 km 3 (1.2 cu mi), dated at 1.2989 ± 0.0009 million years. [56] Its age is indistinguishable from that of the subsequent Mesa Falls Tuff , but the Henry's Fork Caldera fracture truncates the Green Canyon Flow ...
San Francisco volcanic field: Last eruption ~400,000 years ago: ... Grand Canyon Association. ... Shaded relief map of the Peaks, ...
Supervolcano – Volcano that has had an eruption with a volcanic explosivity index (VEI) of 8; Trans-Mexican Volcanic Belt – Active volcanic belt that covers central-southern Mexico; Volcanic arc – Chain of volcanoes formed above a subducting plate; Volcanic explosivity index – Predictive Qualitative scale for explosiveness of volcanic ...
The volcanic island of Anak Krakatau in Indonesia saw an eruption on 22 December 2018 which caused a deadly tsunami, with waves surging up to five meters in height. The tsunami killed at least 437 ...
[17] [18] The caldera-forming Toledo eruption emplaced the Otowi member of the Bandelier Tuff 1.61 million years ago, which can be seen along canyon walls west of Valles Caldera, including San Diego Canyon. The younger Tshirege Member of the Bandelier Tuff was formed during the Valles Caldera eruption 1.23 million years ago. [2]
The Fish Canyon eruption was the second most energetic event to have occurred on Earth since the Cretaceous–Paleogene extinction event 66 million years ago. The asteroid impact responsible for that mass-extinction, equivalent to 100 teratons of TNT, [9] was approximately 420 times more powerful than the Fish Canyon eruption.