Compositional and thermal state of the upper mantle beneath the Bering Sea basalt province: evidence from the Chukchi Peninsula of Russia

• Published in: Canadian Journal of Earth Sciences
• Main Authors: Akinin, Vyacheslav V., Apt, Julia, Roden, Michael F., Francis, Don, Moll-Stalcup, Elizabeth
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1997
• Subjects: General Earth and Planetary Sciences; Bering Sea; Enmelen; Chukchi; Chukchi Peninsula; Nunivak; Nunivak Island; Seward Peninsula
• Online Access: http://dx.doi.org/10.1139/e17-065; http://www.nrcresearchpress.com/doi/pdf/10.1139/e17-065

Nephelinites and basanites of the Enmelen volcanic field, Chukchi Peninsula, Russia, contain upper mantle xenoliths of relatively calcium- and magnesium-rich spinel lherzolites, pyroxenites, and megacrysts. The phase assemblages of the lherzolites require equilibration near 1.5 GPa, and calculated e...