World Library  
Flag as Inappropriate
Email this Article

Belknap Crater

Article Id: WHEBN0000467487
Reproduction Date:

Title: Belknap Crater  
Author: World Heritage Encyclopedia
Language: English
Subject: Volcanoes of Oregon, Mountains of Oregon, Belknap, Cascade Range, List of mountains of Oregon
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Belknap Crater

Belknap Crater
Belknap shield volcano with lava flows in foreground
Elevation 6,876 ft (2,096 m) NAVD 88[1]
Location
Belknap Crater is located in Oregon
Belknap Crater
Linn County, Oregon, U.S.
Range Cascade Range
Coordinates [1]
Topo map USGS Mount Washington
Geology
Type Shield volcano
Volcanic arc Cascade Volcanic Arc
Last eruption 480 CE[2]

Belknap Crater is a shield volcano in the Cascade Range in the U.S. state of Oregon.[3]

Belknap volcano is a Holocene example of the process which built the High Cascade Platform during the Pleistocene. It is a small shield volcano with a capping cinder cone.[4]

A number of other eruptions also occurred in the general area during roughly the same time period. About 1,300 years ago (1,330 14C years B.P.) a series of small spatter cones formed between Belknap and Blue Lake. North of these, a phreatic explosion blasted out the crater which is today occupied by Blue Lake. To the south are several cinder cones and associated lava flows, including Collier, Four-in-One, and Yapoah cones. Four-in-One Cone has been dated at about 1,900 years old (1,980 14C years B.P.) while Collier is dated at about 1,500 years old (1,600 14C years B.P.)[4]

Notable vents

Name Elevation Coordinates
Belknap Crater[5] 6,876 ft (2,096 m) [1]
Inaccessible Cones[6] 4,869 ft (1,484 m)
Little Belknap[6] 6,306 ft (1,922 m) [7]
South Belknap Cone[6] 5,863 ft (1,787 m)
Twin Craters[6] 5,285 ft (1,611 m) [8]

References

 This article incorporates public domain material from websites or documents of the United States Forest Service.

  1. ^ a b c "Belknap Crater". NGS data sheet.  
  2. ^ "Belknap Shield Volcano, Oregon". Cascades Volcano Observatory. USGS. 2005-12-28. Retrieved 2008-08-12. 
  3. ^ "Belknap".  
  4. ^ a b "Oregon Volcanoes - Belknap Volcanic Field". Deschutes & Ochoco National Forests - Crooked River National Grassland,  
  5. ^ "Belknap".  
  6. ^ a b c d "Belknap Subfeatures".  
  7. ^ "Little Belknap".  
  8. ^ "Twin Craters".  
Sources
  • Harris, Stephen L. (2005). Fire Mountains of the West: The Cascade and Mono Lake Volcanoes (3rd ed.).  
  • Wood, Charles A.; Kienle, Jürgen (1990). Volcanoes of North America.  
  • Portions of this article include public domain text from the USFS Deschutes & Ochoco National Forests - Crooked River National Grassland.

External links

  • "Belknap Crater".  
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.