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Titlebook: Carbonatite Volcanism; Oldoinyo Lengai and Keith Bell,J?rg Keller Book 1995 Springer-Verlag Berlin Heidelberg 1995 chemistry.geochemistry.

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樓主
發(fā)表于 2025-3-21 19:48:08 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
書(shū)目名稱Carbonatite Volcanism
副標(biāo)題Oldoinyo Lengai and
編輯Keith Bell,J?rg Keller
視頻videohttp://file.papertrans.cn/222/221681/221681.mp4
叢書(shū)名稱IAVCEI Proceedings in Volcanology
圖書(shū)封面Titlebook: Carbonatite Volcanism; Oldoinyo Lengai and  Keith Bell,J?rg Keller Book 1995 Springer-Verlag Berlin Heidelberg 1995 chemistry.geochemistry.
描述During the last few years, carbonatites have received a considerable amount of attention. Some of this interest was no doubt kindled by the importance of volatiles in the Earth‘s mantle, particularly CO , by the fact that carbonatites 2 can be used to monitor the chemical evolution of the sub-continental upper mantle, and by the fact that carbonatites may be effective metasomatizing agents at both mantle and crustal levels. The interest in Oldoinyo Lengai has extended over at least 100 years, but it was not until the eruptions of 1960, when the unique carbonatitic nature of its lavas was recognized, that the volcano took on special significance in volcanology and igneous petrology. The recognition of carbonatitic flows coin- cided with the first successful laboratory experiments carried out on carbonatitic melts. Since then, Oldoinyo Lengai has formed a cornerstone in all carbonatite discussions. It is probably true to say that the findings from Oldoinyo Lengai have dominated our ideas about carbonatites, in spite of the fact that the alkali- rich, natrocarbonatitic lavas of Oldoinyo Lengai are markedly different from other carbonatites.
出版日期Book 1995
關(guān)鍵詞chemistry; geochemistry; mineral; mineralogy; petrology; volcanism; volcano
版次1
doihttps://doi.org/10.1007/978-3-642-79182-6
isbn_softcover978-3-642-79184-0
isbn_ebook978-3-642-79182-6Series ISSN 0939-9658
issn_series 0939-9658
copyrightSpringer-Verlag Berlin Heidelberg 1995
The information of publication is updating

書(shū)目名稱Carbonatite Volcanism影響因子(影響力)




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書(shū)目名稱Carbonatite Volcanism網(wǎng)絡(luò)公開(kāi)度




書(shū)目名稱Carbonatite Volcanism網(wǎng)絡(luò)公開(kāi)度學(xué)科排名




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沙發(fā)
發(fā)表于 2025-3-21 20:50:27 | 只看該作者
Petrology and Geochemistry of Oldoinyo Lengai Lavas Extruded in November 1988: Magma Source, Ascentpatterns indicate that the carbonatite is highly fractionated. Compositional variations arise mainly between phenocryst-rich and aphyric varieties, with the aphyric variety being richer in K, Ba, Cl, F and Rb. More subtle variations in Fe, Mn, Pb and Zn may reflect groundmass sulphide sedimentation.
板凳
發(fā)表于 2025-3-22 03:35:12 | 只看該作者
The Trace Element Composition and Petrogenesis of Natrocarbonatites,s volcano, and cannot be used to model petrogenetic schemes for carbonatites in general. Liquid immiscibility is a viable model for the derivation of natrocarbonatite from an exceptionally peralkaline nephelinite.
地板
發(fā)表于 2025-3-22 08:38:18 | 只看該作者
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發(fā)表于 2025-3-22 09:50:09 | 只看該作者
What Are the Parental Magmas at Oldoinyo Lengai?,stonite, a common phenocryst phase in nephelinites at Oldoinyo Lengai. Olivine melilitites occur at Oldoinyo Lengai and at young tuff cones nearby; these have alkali contents that are abnormally high, even for these rocks. Olivine melilitites cannot fractionate to form phonolites; relatively low-alk
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發(fā)表于 2025-3-22 23:27:59 | 只看該作者
Nonlinear Dielectric Susceptibilitiesears, during which the active northern crater has been filled. The ash eruptions have resulted in changes in crater morphology, and have been followed by periods of quiescence, prior to renewed lava effusion. Extrusion of peralkaline combeite nephelinite earlier this century (in 1917?), together wit
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發(fā)表于 2025-3-23 03:13:28 | 只看該作者
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發(fā)表于 2025-3-23 09:08:48 | 只看該作者
Nonlinear Dielectric Susceptibilitiess volcano, and cannot be used to model petrogenetic schemes for carbonatites in general. Liquid immiscibility is a viable model for the derivation of natrocarbonatite from an exceptionally peralkaline nephelinite.
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