Definition of Tephrite. Meaning of Tephrite. Synonyms of Tephrite

Here you will find one or more explanations in English for the word Tephrite. Also in the bottom left of the page several parts of wikipedia pages related to the word Tephrite and, of course, Tephrite synonyms and on the right images related to the word Tephrite.

Definition of Tephrite

Tephrite
Tephrite Teph"rite, n. [Gr. ? ashes.] (Geol.) An igneous rock consisting essentially of plagioclase and either leucite or nephelite, or both.

Meaning of Tephrite from wikipedia

- Tephrite is an igneous, volcanic (extrusive) rock, with aphanitic to porphyritic texture. Mineral content is usually abundant feldspathoids (leucite or...
- places basanite in the basanite/tephrite field of the QAPF diagram. Basanite is further distinguished from tephrite by having a normative olivine content...
- strongly alkaline volcanic rock with a composition between phonolite and tephrite. This unusual igneous rock contains 7 to 12% alkali content and 45 to 53%...
- Phonotephrite – A volcanic rock with a composition between phonolite and tephrite Picrite – An olivine-bearing basalt Porphyry – Textural form of igneous...
- firstly erupted, followed by a tephritic phonolite and finally a phonolitic tephrite). Vesuvius was formed as a result of the collision of two tectonic plates...
- (1853–1916). At Vesuvius it occurs as alterations from gypsum within leucite tephrite and as fumarole deposits. It occurs in dry lake beds in California and...
- its chemical composition. For example, basanite is distinguished from tephrite by having a high normative olivine content. Other refinements to the basic...
- researches. They succeeded in producing such rocks as porphyrite, leucite-tephrite, basalt and dolerite, and obtained also various structural modifications...
- basalts, basanites, phonolites, trachytes, nephelinites, trachyandesites, tephrites and rhyolites. Outcrops of plutonic rocks (for example, syenites, gabbros...
- Nepheline-porphyry Es****ite and Theralite Ijolite and Missourite Effusive type or Lavas Phonolite, Leucitophyre Tephrite and Basanite Nepheline-basalt, Leucite-basalt...