File:Mount Mazama eruption timeline 1.svg
Original file (SVG file, nominally 1,049 × 822 pixels, file size: 26 KB)
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Summary
| Description |
English: Cataclysmic eruption to present.
Eruptions of ash and pumice: The cataclysmic eruption started from a vent on the northeast side of the volcano as a towering column of ash, with pyroclastic flows spreading to the northeast. Caldera collapse: As more magma was erupted, cracks opened up around the summit, which began to collapse. Fountains of pumice and ash surrounded the collapsing summit, and pyroclastic flows raced down all sides of the volcano. Steam explosions: When the dust had settled, the new caldera was 5 miles (8 km) in diameter and 1 mile (1.6 km) deep. Ground water interacted with hot deposits causing explosions of steam and ash. Today: In the first few hundred years after the cataclysmic eruption, renewed eruptions built Wizard Island, Merriam Cone, and the central platform. Water filled the new caldera to form the deepest lake in the United States. Figure modified from diagrams on back of 1988 USGS map “Crater Lake National Park and Vicinity, Oregon.” |
| Date | 6 August 2008 (upload date) |
| Source | http://pubs.usgs.gov/fs/2002/fs092-02/ |
| Author | U.S. GEOLOGICAL SURVEY and the NATIONAL PARK SERVICE, Nachgebaut von Benedikt.Seidl |
| Other versions | Image:Mount_Mazama_eruption_timeline.PNG |
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: SVG. The original can be viewed here: Mount Mazama eruption timeline.PNG:  . Modifications made by Benedikt.Seidl.
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Licensing
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:28, 6 August 2008 | | 1,049 × 822 (26 KB) | Benedikt.Seidl | == Beschreibung == {{Information |Description= {{en|1=Cataclysmic eruption to present. ''Eruptions of ash and pumice:'' The cataclysmic eruption started from a vent on the northeast side of the volcano |
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