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| '''Prindle Volcano''' is an isolated basaltic ] located in eastern ], ], in the headwaters of the East Fork of the ]. The cone is fresh-looking and has a base approximately {{convert|900|m|yd|abbr=off}} wide. It is the northwesternmost expression of the ]. The cinder cone, and an approximately {{convert|11|km|mi||adj=on|abbr=off}} long lava flow which breached the margin of the cone, erupted in the ] approximately 176,000 years ago.<ref></ref> Rocks forming the Prindle Volcano occur within, and penetrated through, the ] which is a large region of mostly ]-] ] and deformed ], ], and ] rocks that are intruded by younger ] and ] ] rocks.<ref>{{cite web|url=http://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Prindle%20Volcano |title=Prindle Volcano - Introduction |publisher=Avo.alaska.edu |date=2013-09-24 |accessdate=2013-10-16}}</ref> ]s in the volcano's ejecta provide a sample of lower crust material.<ref>{{cite web|url=http://www.avo.alaska.edu/pdfs/P0550B_p115to119.pdf |title=Granulite and Peridotite Inclusions from Prindle Volcano, |
'''Prindle Volcano''' is an isolated basaltic ] located in eastern ], ], in the headwaters of the East Fork of the ]. The cone is fresh-looking and has a base approximately {{convert|900|m|yd|abbr=off}} wide. It is the northwesternmost expression of the ]. The cinder cone, and an approximately {{convert|11|km|mi||adj=on|abbr=off}} long lava flow which breached the margin of the cone, erupted in the ] approximately 176,000 years ago.<ref></ref> Rocks forming the Prindle Volcano occur within, and penetrated through, the ] which is a large region of mostly ]-] ] and deformed ], ], and ] rocks that are intruded by younger ] and ] ] rocks.<ref>{{cite web|url=http://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Prindle%20Volcano |title=Prindle Volcano - Introduction |publisher=Avo.alaska.edu |date=2013-09-24 |accessdate=2013-10-16}}</ref> ]s in the volcano's ejecta provide a sample of lower crust material.<ref>{{cite web|url=http://www.avo.alaska.edu/pdfs/P0550B_p115to119.pdf |title=Granulite and Peridotite Inclusions from Prindle Volcano, Yukon–Tanana Upland, Alaska |publisher=Avo.alaska.edu |accessdate=2013-10-16}}</ref><ref>{{cite journal|title=Granulite facies xenoliths from Prindle volcano, Alaska: Implications for the northern Cordilleran crustal lithosphere |date=2008-03-31 |doi=10.1016/j.lithos.2007.07.016|volume=101|journal=]|pages=344–358}}</ref> | ||
| ==See also== | ==See also== | ||
Revision as of 23:17, 27 December 2018
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 metres (980 yards) wide. It is the northwesternmost expression of the Northern Cordilleran Volcanic Province. The cinder cone, and an approximately 11-kilometre (6.8-mile) long lava flow which breached the margin of the cone, erupted in the Pleistocene approximately 176,000 years ago. 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. Xenoliths in the volcano's ejecta provide a sample of lower crust material.
See also
References
- "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
- "Prindle Volcano - Introduction". Avo.alaska.edu. 2013-09-24. Retrieved 2013-10-16.
- "Granulite and Peridotite Inclusions from Prindle Volcano, Yukon–Tanana Upland, Alaska" (PDF). Avo.alaska.edu. Retrieved 2013-10-16.
- "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.
External links
63°42′54″N 141°37′44″W / 63.71500°N 141.62889°W / 63.71500; -141.62889
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