NDLI: Melts of garnet lherzolite: experiments, models and comparison to melts of pyroxenite and carbonated lherzolite

Content Provider	Springer Nature Link
Author	Grove, Timothy L. Holbig, Eva S. Barr, Jay A. Till, Christy B. Krawczynski, Michael J.
Copyright Year	2013
Abstract	Phase equilibrium experiments on a compositionally modified olivine leucitite from the Tibetan plateau have been carried out from 2.2 to 2.8 GPa and 1,380–1,480 °C. The experiments-produced liquids multiply saturated with spinel and garnet lherzolite phase assemblages (olivine, orthopyroxene, clinopyroxene and spinel ± garnet) under nominally anhydrous conditions. These SiO2-undersaturated liquids and published experimental data are utilized to develop a predictive model for garnet lherzolite melting of compositionally variable mantle under anhydrous conditions over the pressure range of 1.9–6 GPa. The model estimates the major element compositions of garnet-saturated melts for a range of mantle lherzolite compositions and predicts the conditions of the spinel to garnet lherzolite phase transition for natural peridotite compositions at above-solidus temperatures and pressures. We compare our predicted garnet lherzolite melts to those of pyroxenite and carbonated lherzolite and develop criteria for distinguishing among melts of these different source types. We also use the model in conjunction with a published predictive model for plagioclase and spinel lherzolite to characterize the differences in major element composition for melts in the plagioclase, spinel and garnet facies and develop tests to distinguish between melts of these three lherzolite facies based on major elements. The model is applied to understand the source materials and conditions of melting for high-K lavas erupted in the Tibetan plateau, basanite–nephelinite lavas erupted early in the evolution of Kilauea volcano, Hawaii, as well as younger tholeiitic to alkali lavas from Kilauea.
Starting Page	887
Ending Page	910
Page Count	24
File Format	PDF
ISSN	00107999
Journal	Contributions to Mineralogy and Petrology
Volume Number	166
Issue Number	3
e-ISSN	14320967
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-08-22
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Garnet lherzolite Mantle melting Tibetan Plateau Kilauea Hawaii Experimental petrology Geology Mineral Resources Mineralogy
Content Type	Text
Resource Type	Article
Subject	Geochemistry and Petrology Geophysics

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Erratum to: Melts of garnet lherzolite: experiments, models and comparison to melts of pyroxenite and carbonated lherzolite

Basanite–nephelinite suite from early Kilauea: carbonated melts of phlogopite–garnet peridotite at Hawaii’s leading magmatic edge

Phase relations and melting of carbonated peridotite between 10 and 20 GPa: a proxy for alkali- and CO2-rich silicate melts in the deep mantle

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Phase relations of phlogopite with magnesite from 4 to 8 GPa

Trace-element partitioning between garnet, clinopyroxene and Fe-rich picritic melts at 3 to 7 GPa

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Hydrogen partitioning between melt, clinopyroxene, and garnet at 3 GPa in a hydrous MORB with 6 wt.% H2O

Melts of garnet lherzolite: experiments, models and comparison to melts of pyroxenite and carbonated lherzolite

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Erratum to: Melts of garnet lherzolite: experiments, models and comparison to melts of pyroxenite and carbonated lherzolite

Basanite–nephelinite suite from early Kilauea: carbonated melts of phlogopite–garnet peridotite at Hawaii’s leading magmatic edge

Phase relations and melting of carbonated peridotite between 10 and 20 GPa: a proxy for alkali- and CO2-rich silicate melts in the deep mantle

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Melts of garnet lherzolite: experiments, models and comparison to melts of pyroxenite and carbonated lherzolite