Crustal contamination of Kilauea Volcano magmas revealed by oxygen isotope analyses of glass and olivine from Puu Oo eruption lavas

Saved in:
Online Access: Get full text
doi: 10.1093/petrology/39.5.803
Authors:Garcia, Michael O.; Ito, Emi; Eiler, John M.; Pietruszka, Aaron J.
Author Affiliations:Primary:
University of Hawaii, Department of Geology and Geophysics, Honolulu, HI, United States
University of California at Santa Barbara, United States
University of Minnesota-Minneapolis, United States
California Institute of Technology, United States
Volume Title:Shallow-level processes in ocean-island magmatism
Volume Authors:Davidson, Jon P., editor; Bohrson, Wendy A.
Source:Journal of Petrology, 39(5), p.803-817; Chapman conference, Tenerife, Canary Islands, Spain, Nov. 9-16, 1996, edited by Jon P. Davidson and Wendy A. Bohrson. Publisher: Clarendon Press, Oxford, United Kingdom. ISSN: 0022-3530
Publication Date:1998
Note:In English. 45 refs.; illus., incl. 2 tables
Summary:OIB have a large range in δ 18O (4.5-7.50/00) compared to assumed primordial mantle values (5.5-6.00/00) and with MORB (5.7 ± 0.20/00). Some Hawaiian tholeiites have low δ 18O (4.6-5.20/00) which could be a primary source feature or the result of crustal contamination. The current 14 year old Puu Oo eruption from Kilauea has significant temporal variation in 86Sr/87Sr, 206Pb/204Pb and 18O in the glassy matrix and in 18O in olivines which probably reflect contamination with metamorphosed Kilauea rocks during the magma's 19 km transit through the volcano's east rift zone. Major element, O, Sr, Nd and Pb isotopic analyses of the Puu Oo tholeiites are listed. [B.E.L.]
Subsections:Igneous petrology
Subjects:Basalts; Crust; Eruptions; Geochemistry; Glasses; Igneous rocks; Isotope ratios; Isotopes; Lava; Lithogeochemistry; Magma contamination; Magmas; Mid-ocean ridge basalts; Nesosilicates; O-18/O-16; Ocean-island basalts; Olivine; Olivine group; Orthosilicates; Oxygen; Silicates; Stable isotopes; Tholeiitic basalt; Volcanic glass; Volcanic rocks; Volcanoes; East Pacific Ocean Islands; Hawaii; Hawaii County Hawaii; Hawaii Island; Kilauea; Oceania; Polynesia; Puu Oo; United States
Coordinates:N191500 N192500 W1550500 W1552000
Abstract Numbers:98M/4255
Record ID:1998049009
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
Tags: Add Tag
No Tags, Be the first to tag this record!