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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 900 meters wide. It is the northwesternmost expression of the ]. The cinder cone, and an approximately 11 km-long lava flow which breached the margin of the cone, erupted in the ] approximately 176,000 years ago.<ref>http://geology.gsapubs.org/content/35/1/17.abstract Blondes et al 2007</ref> Rocks forming the Prindle Volcano occur within, and penetrated through, the ] which is a large region of mostly Paleozoic-Mesozoic metamorphosed and deformed sedimentary, volcanic, and intrusive rocks that are intruded by younger Cretaceous and Tertiary granitic rocks.<ref>http://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Prindle%20Volcano</ref> Xenoliths contained in the volcano's ejecta provide a sample of lower crust material<ref>http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6J-4PFDDY3-2&_user=10&_coverDate=03%2F31%2F2008&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1205837951&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=8ff649358baf16465a9989e9feaa4ae3</ref> | '''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 900 meters wide. It is the northwesternmost expression of the ]. The cinder cone, and an approximately 11 km-long lava flow which breached the margin of the cone, erupted in the ] approximately 176,000 years ago.<ref>http://geology.gsapubs.org/content/35/1/17.abstract Blondes et al 2007</ref> Rocks forming the Prindle Volcano occur within, and penetrated through, the ] which is a large region of mostly Paleozoic-Mesozoic metamorphosed and deformed sedimentary, volcanic, and intrusive rocks that are intruded by younger Cretaceous and Tertiary granitic rocks.<ref>http://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Prindle%20Volcano</ref> Xenoliths contained in the volcano's ejecta provide a sample of lower crust material<ref>http://www.avo.alaska.edu/pdfs/P0550B_p115to119.pdf</ref><ref>http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6J-4PFDDY3-2&_user=10&_coverDate=03%2F31%2F2008&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1205837951&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=8ff649358baf16465a9989e9feaa4ae3</ref> | ||
Revision as of 21:31, 14 February 2010
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. 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 Tertiary granitic rocks. Xenoliths contained in the volcano's ejecta provide a sample of lower crust material
References
See also
63°42′54″N 141°37′44″W / 63.71500°N 141.62889°W / 63.71500; -141.62889
- http://geology.gsapubs.org/content/35/1/17.abstract Blondes et al 2007
- http://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Prindle%20Volcano
- http://www.avo.alaska.edu/pdfs/P0550B_p115to119.pdf
- http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6J-4PFDDY3-2&_user=10&_coverDate=03%2F31%2F2008&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1205837951&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=8ff649358baf16465a9989e9feaa4ae3
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