Medicine Lake Volcano - Wikipedia
Medicine Lake Volcano is a large shield volcano in northeastern California about 30 mi (50 km) northeast of Mount Shasta. The volcano is located in a zone of east-west crustal extension east of the main axis of the Cascade Volcanic Arc and the Cascade Range.
Medicine Lake | U.S. Geological Survey - USGS.gov
Medicine Lake caldera viewed from the south rim facing north. Also known as the Medicine Lake Highlands, this volcanic region covers a total area of about 2,200 km 2 (850 mi 2), extending approximately 80 km (50 mi) north-south and 50 km (30 mi) east-west.
Geology and History of Medicine Lake | U.S. Geological Survey - USGS.gov
It is also known for scores of lava-tube caves and for well-preserved young volcanic features. Medicine Lake volcano lies in a strongly east-west extensional tectonic environment slightly east of the main Cascade Range arc axis on the Modoc Plateau in northern California.
Eruption History of Medicine Lake Volcano | U.S. Geological Survey
2023年11月2日 · The eruptive activity at Medicine Lake volcano is probably driven by intrusions of basaltic magma that occur during east-west stretching of the crust in an extensional tectonic environment.
Medicine Lake Loop - Volcanic Legacy Scenic Byway
Medicine Lake is actually the caldera of the Medicine Lake Volcano – and is actually the largest volcano by volume in the entire Cascade Range. It has been active for 500,000 years, but because the eruptions were gentle rather than explosive, it …
Medicine Lake - Global Volcanism Program
The broad 50-km-wide Medicine Lake volcano in the southern Cascade Range, seen here from the NE, is an example of a shield volcano in a continental margin setting. Its chemistry is more diverse than Hawaiian shield volcanoes and it has produced both basaltic lava flows, rhyolitic tephra, and obsidian flows during the Holocene.
Geology - Lava Beds National Monument (U.S. National Park Service)
2024年4月12日 · The monument is located on the Medicine Lake shield volcano, which is the largest volcano by volume in the Cascade Range at 144 cubic miles. Shield volcanoes are broad, gently sloping mountains that form from many dispersed, low energy eruptions of …
Medicine Lake volcano - AMNH
Medicine Lake is a broad shield volcano, built up by successive basalt flows. In contrast, the other Cascade volcanoes are tall peaks made mostly of andesite lavas. The magma for all the volcanoes in the Cascade Range originates near the subducting plate, about 120 kilometers below the surface.
Lava Beds National Monument (U.S. National Park Service)
2023年12月20日 · Over the last half-million years, volcanic eruptions on the Medicine Lake shield volcano have created a rugged landscape dotted with diverse volcanic features. More than 800 caves, Native American rock art sites, historic battlefields and campsites, and a high desert wilderness experience await you!
Geologic Map of Medicine Lake Volcano, Northern California
2011年2月28日 · Hidden in the center of Medicine Lake volcano is a 7 km by 12 km summit caldera in which nestles its namesake, Medicine Lake. The flanks of Medicine Lake volcano, which are dotted with cinder cones, slope gently upward to the caldera rim, which reaches an elevation of nearly 8,000 ft (2,440 m).
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