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Disruption of the Mauna Loa magma system by the 1868 Hawaiian earthquake - Geochemical evidenceTo test whether a catastrophic earthquake could affect an active magma system, mean abundances (adjusted for 'olivine control') of titanium, potassium, phosphorus, strontium, zirconium, and niobium of historic lavas erupted from Mauna Loa Volcano, Hawaii, after 1868 were analyzed and were found to decrease sharply relative to lavas erupted before 1868. This abrupt change in lava chemistry, accompanied by a halved lava-production rate for Mauna Loa after 1877, is interpreted to reflect the disruptive effects of a magnitude 7.5 earthquake in 1868. This interpretation represents a documentable case of changes in magmatic chemical variations initiated or accelerated by a major tectonic event.
Document ID
19870041338
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Tilling, Robert I.
(USGS, National Center Reston, VA, United States)
Rhodes, J. Michael
(Geological Survey Reston, VA, United States)
Sparks, Joel W.
(Massachusetts, University Amherst, United States)
Lockwood, John P.
(Hawaiian Volcano Observatory HI, United States)
Lipman, Peter W.
(USGS Denver, CO, United States)
Date Acquired
August 13, 2013
Publication Date
January 9, 1987
Publication Information
Publication: Science
Volume: 235
ISSN: 0036-8075
Subject Category
Geophysics
Accession Number
87A28612
Funding Number(s)
CONTRACT_GRANT: NSF EAR-84-18671
CONTRACT_GRANT: NSG-9060
Distribution Limits
Public
Copyright
Other

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