Jump to content

File:Mount Mazama eruption timeline.PNG

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (250 × 841 pixels, file size: 187 KB, MIME type: image/png)

Summary

Description

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.”

Source http://pubs.usgs.gov/fs/2002/fs092-02/ (saved as PNG)
Author U.S. GEOLOGICAL SURVEY and the NATIONAL PARK SERVICE
Other versions
This geology image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with {{vector version available|new image name}}.


It is recommended to name the SVG file “Mount Mazama eruption timeline.svg”—then the template Vector version available (or Vva) does not need the new image name parameter.

Licensing

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

Bahasa Indonesia  català  čeština  Deutsch  eesti  English  español  français  galego  italiano  Nederlands  português  polski  sicilianu  suomi  Tiếng Việt  Türkçe  български  македонски  русский  മലയാളം  한국어  日本語  中文  中文(简体)  中文(繁體)  العربية  فارسی  +/−

Crater Lake is an example, it is located in Oregen and was made from a valcano, making a caldera.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current05:24, 29 March 2006Thumbnail for version as of 05:24, 29 March 2006250 × 841 (187 KB)JkellySource: http://pubs.usgs.gov/fs/2002/fs092-02/ (saved as PNG) Author: U.S. GEOLOGICAL SURVEY and the NATIONAL PARK SERVICE Description: <blockquote>Cataclysmic eruption to present. Eruptions of ash and pumice: The cataclysmic eruption started from a ve

Global file usage

The following other wikis use this file: