Plutonic xenoliths reveal the timing of magma evolution at Hualalai and Mauna Kea, Hawaii

Author:: Vazquez, J. A., Shamberger, P. J., Hammer, J. E.
Title:: Plutonic xenoliths reveal the timing of magma evolution at Hualalai and Mauna Kea, Hawaii
Periodical:: Geology
Year:: 2007
Volume:: 35
Pages:: 695-698
Subject:: Uranium-series method Radioactive dating Magma chambers Magmatic differentiation Cumulates Volcanism Geology stratigraphic
Summary:: New radioactive dating of single zircons from plutonic xenoliths at Mauna Kea and Hualalai volcanoes, Hawaii, reveals that magma evolution at Hualalai is atypical compared to Mauna Kea which follows the archetypal progression of Hawaiian volcanism. The Mauna Kea zircons represents a bimodal population with ages of 122 ka and 64 ka while Hualalai syenogabbros and diorites record generation of alkalic magma at 41 ka and 261 ka.
Label:: Geology
URL:: http://cletus.uhh.hawaii.edu:2074/10.1130/G23495A.1
Date:: August 2007
Collection:: Periodicals