rhyolite

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Английский Язык - Турецкий язык
riyolit
Английский Язык - Английский Язык
An igneous, volcanic (extrusive) rock, of felsic composition, with aphanitic to porphyritic texture
A felsic volcanic rock; the extrusive equivalent of granite
A lava rich in silica (acid) Rhyolite is very viscous when erupted and often forms lava domes or very short thick lava flows
A fine grained lava, having the same chemical and mineralogical composition as granite
a fine-grained extrusive volcanic rock, similar to granite in composition and usually exhibiting flow lines - BACK>>
A type of volcanic rock consisting of feldspar, ferromagnesian, and quartz minerals with a relatively high silica content of about 70 percent Rhyolite is associated with volcanic events that may be very explosive
Igneous rock that is the volcanic equivalent of granite, whose chemical composition is similar. Rhyolites are known from all parts of the Earth and from all geologic ages; they are found mostly on the continents or their immediate margins, but small quantities have been described from remote islands
- the volcanic rock equivalent of granite, coarse grained crystals in a fine matrix
Volcanic rock (or lava) that charactericstically is light in color, contains 69 percent silica or more, and is rich in potassium and sodium
A fine-grained igneous rock that is rich in silica The volcanic equivalent of granite
Fine-grained extrusive igneous rock, commonly with phenocrysts of quartz and feldspar in a glassy groundmass
A fine-grained light coloured volcanic rock, chemically identical to obsidian Colour may range from white, through grey, and yellow to reddish-pink Sometimes used as a raw material for lithic tools
Volcanic rock (or lava) that characteristically is light in color, contains 69 percent silica or more, and is rich in potassium and sodium
A volcanic rock that contains more than 20% quartz, 65-90% alkali feldspar, and 35-10% plagioclase Rhyolite is the extrusive variety of granite
A volcanic rock containing more than 68% silica with a very high viscosity when in a molten state
very acid volcanic rock
Highly felsic igneous volcanic rock, typically light in color; rough volcanic equivalent of granite
Any of a group of felsic igneous rocks that are the extrusive equivalents of granite
a glassy volcanic rock, similar to granite in composition and usually exhibiting flow lines
-Fine-grained acidic volcanic rock mineralogically similar to granite, but possessing less quartz
a fine-grained extrusive volcanic rock, similar to granite in composition and usually exhibiting flow lines
a group of extrusive, felsic light-colored) igneous rocks which are typically porphyritic, with phenocrysts of quartz and/or orthoclase feldspar in a cryptocrystalline groundmass The presence of phenocrysts indicates two stages (speeds) of cooling of the original magma
A quartzose trachyte, an igneous rock often showing a fluidal structure
A fine-grained volcanic rock composed of quartz, K-feldspar, and plagioclase It is the extrusive equivalent of a granite
rhyolite
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