Crater Lake - Wikipedia
It is the main feature of Crater Lake National Park and is a tourist attraction for its deep blue color and water clarity. The lake partly fills a 2,148-foot-deep (655 m) caldera [3] that was formed around 7,700 (± 150) years ago [4] by the collapse of the volcano Mount Mazama.
Crater Lake | U.S. Geological Survey - USGS.gov
Crater Lake partly fills one of the most visually spectacular calderas of the world, an 8-by-10-km (5-by-6-mi) basin more than 1 km (0.6 mi) deep formed by collapse of the volcano known as Mount Mazama during a series of explosive eruptions about 7,700 years ago.
Crater Lake - U.S. National Park Service
Widely known for its rich blue color and extreme clarity, which averages 102 ft (31m) deep, Crater Lake is the deepest lake in the United States. It is one of the top ten deepest in the world. Unlike other Cascade Mountain lakes, Crater Lake rarely freezes over in the winter due to the heat content of the enormous water volume.
Geology of Crater Lake National Park | U.S. Geological Survey - USGS.gov
Photo of Crater Lake and bathymetric image of the lake subsurface and caldera floor. Crater Lake, which fills one of the most beautiful calderas of the world, lies atop of Mount Mazama in Southern Oregon.
Eruption History for Mount Mazama and Crater Lake Caldera
2023年10月31日 · Layers of lava flows from these volcanoes are visible in the caldera walls and in landmarks along the south rim of Crater Lake, including Applegate and Garfield Peaks. The cross-sectional views of the layers of lava flows and pyroclastic deposits reveal that most of Mount Mazama was built up by lava that was fed from low- level lava fountains.
Caldera: Crater Formed by Volcanic Collapse or Explosion - Geology.com
Crater Lake formed about 7700 years ago when a massive volcanic eruption of Mount Mazama emptied a large magma chamber below the mountain. The fractured rock above the magma chamber collapsed to produce a massive crater over six miles across. Centuries of rain and snow filled the caldera, creating Crater Lake.
Crater Lake National Park - Wikipedia
The park encompasses the caldera of Crater Lake, a remnant of Mount Mazama, a destroyed volcano, and the surrounding hills and forests. The lake is 1,949 feet (594 m) deep at its deepest point, [ 4 ] which makes it the deepest lake in the United States, the second-deepest in North America and the tenth-deepest in the world. [ 4 ]
Crater Lake National Park (U.S. National Park Service)
Native Americans witnessed its formation 7,700 years ago, when a violent eruption triggered the collapse of a tall peak. Scientists marvel at its purity—fed by rain and snow, it’s the deepest lake in the USA and one of the most pristine on Earth.
Volcanic crater lake - Wikipedia
A well-known crater lake, which bears the same name as the geological feature, is Crater Lake in Oregon. It is located in the caldera of Mount Mazama . It is the deepest lake in the United States with a depth of 594 m (1,949 ft).
Crater Lake National Park: Presently Tranquil - USGS Fact Sheet
Several post-caldera volcanic features are present at Crater Lake, although only Wizard Island breaks the lake surface. The youngest post-caldera volcano is a small rhyodacite dome in Crater Lake on the east flank of Wizard Island that dates from about 5,000 years ago.