Prindle Volcano

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Prindle Volcano is an isolated basaltic cinder cone located in eastern Alaska, United States, in the headwaters of the East Fork of the Fortymile River. The cone is fresh-looking and has a base approximately 900 meters wide. It is the northwesternmost expression of the Northern Cordilleran Volcanic Province. The cinder cone, and an approximately 11 km-long lava flow which breached the margin of the cone, erupted in the Pleistocene approximately 176,000 years ago.[1] Rocks forming the Prindle Volcano occur within, and penetrated through, the Yukon-Tanana upland which is a large region of mostly Paleozoic-Mesozoic metamorphosed and deformed sedimentary, volcanic, and intrusive rocks that are intruded by younger Cretaceous and Cenozoic granitic rocks.[2] Xenoliths in the volcano's ejecta provide a sample of lower crust material.[3][4]

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References[edit]

  1. ^ "Dating young basalt eruptions by (U-Th)/He on xenolithic zircons" Geology, v. 35 no. 1 p. 17-20, 2006 doi: 10.1130/G22956A.1
  2. ^ "Prindle Volcano - Introduction". Avo.alaska.edu. 2013-09-24. Retrieved 2013-10-16. 
  3. ^ "Granulite and Peridotite Inclusions from Prindle Volcano, Yukon-Tanana Upland, Alaska" (PDF). Avo.alaska.edu. Retrieved 2013-10-16. 
  4. ^ "Granulite facies xenoliths from Prindle volcano, Alaska: Implications for the northern Cordilleran crustal lithosphere". Lithos. 101: 344–358. 2008-03-31. doi:10.1016/j.lithos.2007.07.016. 

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Coordinates: 63°42′54″N 141°37′44″W / 63.71500°N 141.62889°W / 63.71500; -141.62889