TY  - JOUR
PY  - 1987//
TI  - Disruption of the mauna loa magma system by the 1868 hawaiian earthquake: geochemical evidence
JO  - Science
A1  - Tilling, R. I.
A1  - Rhodes, J. M.
A1  - Sparks, J. W.
A1  - Lockwood, J. P.
A1  - Lipman, P. W.
SP  - 196
EP  - 199
VL  - 235
IS  - 4785
N2  - To 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.<p /> <p>Language: en</p>
LA  - en
SN  - 0036-8075
UR  - http://dx.doi.org/10.1126/science.235.4785.196
ID  - ref1
ER  -