Can we identify source lithology of basalt?

Can we identify source lithology of basalt?

The nature of source rocks of basaltic magmas plays a fundamental role in understanding the composition, structure and evolution of the solid earth. However, identification of source lithology of basalts remains uncertainty. Using a parameterization of multi-decadal melting experiments on a variety...

Full description

Bibliographic Details
Main Authors: Yang, Zong-Feng, Zhou, Jun-Hong
Format: Online
Language:English
Published: Nature Publishing Group 2013
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3655377/
id pubmed-3655377
recordtype oai_dc
spelling pubmed-36553772013-05-20 Can we identify source lithology of basalt? Yang, Zong-Feng Zhou, Jun-Hong Article The nature of source rocks of basaltic magmas plays a fundamental role in understanding the composition, structure and evolution of the solid earth. However, identification of source lithology of basalts remains uncertainty. Using a parameterization of multi-decadal melting experiments on a variety of peridotite and pyroxenite, we show here that a parameter called FC3MS value (FeO/CaO-3*MgO/SiO2, all in wt%) can identify most pyroxenite-derived basalts. The continental oceanic island basalt-like volcanic rocks (MgO>7.5%) (C-OIB) in eastern China and Mongolia are too high in the FC3MS value to be derived from peridotite source. The majority of the C-OIB in phase diagrams are equilibrium with garnet and clinopyroxene, indicating that garnet pyroxenite is the dominant source lithology. Our results demonstrate that many reputed evolved low magnesian C-OIBs in fact represent primary pyroxenite melts, suggesting that many previous geological and petrological interpretations of basalts based on the single peridotite model need to be reconsidered. Nature Publishing Group 2013-05-16 /pmc/articles/PMC3655377/ /pubmed/23676779 http://dx.doi.org/10.1038/srep01856 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareALike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
repository_type Open Access Journal
institution_category Foreign Institution
institution US National Center for Biotechnology Information
building NCBI PubMed
collection Online Access
language English
format Online
author Yang, Zong-Feng
Zhou, Jun-Hong
spellingShingle Yang, Zong-Feng
Zhou, Jun-Hong
Can we identify source lithology of basalt?
author_facet Yang, Zong-Feng
Zhou, Jun-Hong
author_sort Yang, Zong-Feng
title Can we identify source lithology of basalt?
title_short Can we identify source lithology of basalt?
title_full Can we identify source lithology of basalt?
title_fullStr Can we identify source lithology of basalt?
title_full_unstemmed Can we identify source lithology of basalt?
title_sort can we identify source lithology of basalt?
description The nature of source rocks of basaltic magmas plays a fundamental role in understanding the composition, structure and evolution of the solid earth. However, identification of source lithology of basalts remains uncertainty. Using a parameterization of multi-decadal melting experiments on a variety of peridotite and pyroxenite, we show here that a parameter called FC3MS value (FeO/CaO-3*MgO/SiO2, all in wt%) can identify most pyroxenite-derived basalts. The continental oceanic island basalt-like volcanic rocks (MgO>7.5%) (C-OIB) in eastern China and Mongolia are too high in the FC3MS value to be derived from peridotite source. The majority of the C-OIB in phase diagrams are equilibrium with garnet and clinopyroxene, indicating that garnet pyroxenite is the dominant source lithology. Our results demonstrate that many reputed evolved low magnesian C-OIBs in fact represent primary pyroxenite melts, suggesting that many previous geological and petrological interpretations of basalts based on the single peridotite model need to be reconsidered.
publisher Nature Publishing Group
publishDate 2013
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3655377/
_version_ 1611978225660985344

Similar Items