World Library  
Flag as Inappropriate
Email this Article

Bishop Tuff

Two layers of the Bishop Tuff: lower layer was from ashfall, upper layer was from the main pyroclastic flow.

The Bishop Tuff is a welded tuff that formed 767,100 ± 900 years ago as a rhyolitic pyroclastic flow during the eruption that created the Long Valley Caldera.[1] Large outcrops of the tuff are located in Inyo and Mono Counties, California, United States.


  • Modern exposure 1
  • See also 2
  • References 3
  • External links 4

Modern exposure

Map of the Long Valley Caldera, with Bishop Tuff outlined.

The Bishop Tuff caps a volcanic plateau in the northern Owens Valley. The tableland formation is located east of U.S. Route 395 and west of the Nevada stateline, sitting northwest of Bishop and southeast of Crowley Lake and Mammoth Lakes. Another part of the flow is south of Mono Lake, and surrounding the Mono-Inyo Craters.

Deposits of Bishop Tuff in this area cover nearly 2,200-square-kilometer (850 sq mi), and range in thickness from 150-meter (490 ft) to 200-meter (660 ft).

The Owens River Gorge.

See also


  1. ^ Crowley, J.L.; Schoene, B.; Bowring, S.A. (December 2007). "U-Pb dating of zircon in the Bishop Tuff at the millennial scale". Geology 35 (12): 1123–1126.  

External links

  • Long Valley Observatory - Bishop Tuff
  • BLM Bishop Field Office web page

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, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for 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 Project Gutenberg 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.