Dynamical model for temporal variation in magma type and eruption interval at Kohala volcano, Hawaii

Research Article| November 01, 1981 Dynamical model for temporal variation in magma type and eruption interval at Kohala volcano, Hawaii Mark D. Feigenson; Mark D. Feigenson 1Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08544 Search for other works by this author on: GSW Google Scholar Frank J. Spera Frank J. Spera 1Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08544 Search for other works by this author on: GSW Google Scholar Author and Article Information Mark D. Feigenson 1Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08544 Frank J. Spera 1Department of Geological and Geophysical Sciences, Princeton University, Princeton, New Jersey 08544 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1981) 9 (11): 531–533. https://doi.org/10.1130/0091-7613(1981)9<531:DMFTVI>2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Mark D. Feigenson, Frank J. Spera; Dynamical model for temporal variation in magma type and eruption interval at Kohala volcano, Hawaii. Geology 1981;; 9 (11): 531–533. doi: https://doi.org/10.1130/0091-7613(1981)9<531:DMFTVI>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract At Kohala volcano, Hawaii, the amount of source partial melting decreases rapidly toward the end of magmatic activity. The decreasing amounts of partial fusion lead to progressively higher concentrations of incompatible trace elements in lavas erupted during the waning stages of volcanism. In addition to the geochemical variations that characterize the transition from tholeiitic to alkalic basalt production, there is a pronounced decrease in the eruption frequency observed for the younger lavas. A model of magma generation by viscous dissipation can duplicate the relationships between geochemistry and age of the lavas. A reduction in the shear stress that produces deformation causes both a decrease in the amount of mantle partial melting and an increase in the eruption interval. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.