Uncovering Arizona's Uinkaret Volcanic Field: Active Lava Flows and Geological Wonders скачать в хорошем качестве

Uncovering Arizona's Uinkaret Volcanic Field: Active Lava Flows and Geological Wonders

Uncovering Arizona's Uinkaret Volcanic Field: Active Lava Flows and Geological Wonders The Uinkaret volcanic field, located on the north rim of the Grand Canyon in northwestern Arizona, is an active area featuring over 200 volcanic cones and associated basaltic lava flows. This field has significantly influenced the Grand Canyon's geology, with lava flows creating temporary dams in the Colorado River, forming features like Lava Falls.Key Features: Vulcan's Throne: A prominent cinder cone formed approximately 73,000 years ago, offering insights into the region's volcanic activity. Lava Flows: Basaltic lava flows from the Uinkaret volcanic field have cascaded into the Grand Canyon, creating temporary dams that influenced the river's course and forming features like Lava Falls. Recent Activity: The youngest known eruption in the Uinkaret volcanic field is the basalt of Little Springs, which occurred approximately 1,000 years ago. This eruption produced lava flows that traveled both north and south, with remnants of the associated cinder cone still visible today. Geological Significance: The Uinkaret volcanic field provides valuable insights into volcanic processes and their impact on landscape formation. The lava flows have not only shaped the Grand Canyon's geology but also influenced the river's path, creating features like Lava Falls Rapid.