Noun:

ரையோலைட்,

rhyolite தமிழ் அர்த்தத்தின் உதாரணம்:

None

rhyolite's Usage Examples:

Included in this group are some rocks which are more properly to be regarded as vitreous forms of trachyte than as glassy rhyolites (Iceland), but except by chemical analyses they cannot be separated.

Augite-andesite predominates, but basalt and rhyolite also occur.

rhyolite domes are present, distributed over a length of 3 km.

In the south of the island there are sills and dykes of felsite, quartz-porphyry, rhyolite, trachyte and pitchstone.

Quartz occurs as a primary and essential constituent of igneous rocks of acidic composition such as granite, quartz-porphyry and rhyolite, being embedded in these either as irregularly shaped masses or as porphyritic crystals.

The bead on the far left is a mixture of colors and is made from a stone called leopardskin rhyolite.

- Recent volcanic eruptive rocks (including rhyolite, trachyte, phonolite, andesite and basalt) have been examined at a number of points throughout both the geological regions of the island.

rhyolite dikes, one such mine Wheal Jane only closed in 1990.

We may note the pre-Cambrian lavas and tuffs of the Wrekin district in Shropshire and the somewhat later volcanic rocks of Charnwood; the porphyrites, andesites, tuffs and rhyolites of the Borrowdale volcanic centre, erupted in the Ordovician period, and the Silurian granites of the same region.

The volcanic series include the rhyolite of Nell Island, some obsidian, and the sheets of basalts which form the Cloudy Mountains, Mount Dayman and Mount Trafalgar (an active volcano), and also cover wide areas to the south and west of the Owen Stanley Range.

Additionally it has been a producer of tin ores mainly associated with rhyolite dikes, one such mine Wheal Jane only closed in 1990.