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nepheline [Brit ˈnɛf(ə)lɪn, Am ˈnɛfəlɪn] СЪЩ

nepheline

nefelina f

Индивидуални преводни двойки

nepheline

английски

They consist of silica undersaturated spilites, picrites, and nepheline syenites. en.wikipedia.org

Nepheline benmoreite magmas derived from mantle sources containing lherzolite xenoliths display similarities to some plutonic nepheline syenites. en.wikipedia.org

Mineral content is usually abundant feldspathoids (leucite or nepheline), plagioclase, and lesser alkali feldspar. en.wikipedia.org

Minerals such as alkali feldspar, leucite, nepheline, sodalite, phlogopite mica, and apatite may be present in the groundmass. en.wikipedia.org

Extremely iron-rich olivine is rare, but is present in some nepheline syenite. en.wikipedia.org

They are associated principally with basalts, nepheline and leucite basalts and monchiquites. en.wikipedia.org

The mineral assemblage consists of essential alkali feldspar; relatively minor plagioclase and quartz or a feldspathoid such as nepheline may also be present. en.wikipedia.org

Connected with the borolanite there are other types of nepheline syenite and pegmatite. en.wikipedia.org

The older effusive eruptions resulted in an occurrence of nepheline basalt and nephelinite. en.wikipedia.org

Units within the complex include carbonatite, nepheline syenite, phonolite, and ijolite. en.wikipedia.org

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английски