Results 31 to 40 of about 188 (175)
Model for the origin, ascent, and eruption of lunar picritic magmas [PDF]
American Mineralogist, 2017 A model for the origin, ascent, and eruption of the lunar A17 orange glass magma has been constructed using petrological constraints from gas solubility experiments and from analyses of the lunar sample 74220 to better determine the nature and origin of this unique explosive eruption. Three stages of the eruption have been identified.
Rutherford, Malcolm +4 more
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The Picrite-Teschenite Sill of Lugar (Ayrshire) [PDF]
Quarterly Journal of the Geological Society of London, 1916 I. Introduction. The association of teschenite and ultrabasic rocks (picrite and peridotite) in a single rock-body has now been established for several occurrences in the lowlands of Scotland. The Barnton occurrence, near Edinburgh, has been described by Sir Archibald Geikie,1 by Mr. J. Henderson & Mr. J. G. Goodchild, and by Mr. H.
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Frontiers in Earth Science, 2018 The Late Permian Emeishan large igneous province (ELIP) is considered to be one of the best examples of a mantle plume derived large igneous province. One of the primary observations that favor a mantle plume regime is the presence of ultramafic volcanic
J. G. Shellnutt, Thuy T. Pham
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TECTONOMAGMATIC EVOLUTION OF THE EOCENE VOLCANISM OF THE TALYSH ZONE (AZERBAIJAN)
Известия Томского политехнического университета: Инжиниринг георесурсов, 2021 The relevance. At present, the question arises of the need to clarify the typomorphic features of magmatic complexes, as factors that determine the geodynamic regimes of their formation and to clarify the potential ore content.
Vagif M. Karimov
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Picritic rocks (meimechites) from Poniky: mineralogy and petrology (Western Carpathians)
Mineralia SlovacaNew data on picritic rocks from the Poniky area are presented in this contribution. In addition to the major mafic minerals (clinopyroxene, kaersutite, phlogopite), spinels, Sr-rich apatite (up to 6.4 wt.% SrO), and sodalite are also described.
Ján Spišiak +5 more
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The pyroclastic komatiite complex at Sattasvaara in northern Finland [PDF]
Bulletin of the Geological Society of Finland, 1985 The Sattasvaara komatiite complex is part of an extensive zone of explosive komatiitic volcanism which may have been a significant stage in the Lapponian evolution regarded as Archean.
M. Saverikko
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Геодинамика и тектонофизика, 2020 The study of the Bol’shaya Tagna alkaline-carbonatite massif and adjacent areas was focused on the mineral and chemical compositions of minerals, the distribution of petrogenic and trace elements in pyroxene-free alkaline picrites in veins and dikes ...
V. B. Savel'eva +3 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.Abstract The Scourie dyke swarm in the Lewisian foreland of northwest Scotland provides key constraints on the Paleoproterozoic evolution of the North Atlantic craton. High‐precision U‐Pb geochronology identifies two distinct intrusive phases at ∼2.41–2.38 Ga and ∼2.00 Ga.
M. Mirzaei +4 more
wiley +1 more source
Известия Томского политехнического университета: Инжиниринг георесурсов, 2017 Ultramfits of the studied territory are perspective on detection of Cu-Ni with platinum-group elements deposits that causes the relevance of their research. The main aim of the study.
Aleksey Ivanovich Chernyshov +2 more
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Mantle Potential Temperature Estimates of Basalt from the East Taiwan Ophiolite
Terrestrial, Atmospheric and Oceanic Sciences, 2016 The East Taiwan Ophiolite (ETO) is a fragment of the eastern-most South China Sea that was accreted to the Eurasian margin during the Pliocene and is a member of the Western Pacific and Cordilleran belt ophiolite group.
J. Gregory Shellnutt Robert B.-J. Hsieh
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