Sentence examples for igneous from inspiring English sources

It occurs in nearly all acid igneous, metamorphic, and sedimentary rocks.

Granite doesn't self-identify as igneous.

Such meteorites look like igneous rocks from Earth hence the belief that Vesta has a mantle.The rocket's blue glareAfter spending a year in orbit around Vesta, Dawn will perform a trick rare in space travel it will reignite its engines and head off to orbit another body.

Like South Carolina, Witwatersrand has an area of gold that is found not in igneous rocks but in a thin sheet, sandwiched among sediments.

Igneous intrusion forms are numerous.

Devonian igneous activity was considerable, albeit localized.

Most of the county consists of a lowland between the mountains and the sea, with a maximum width of about 20 miles (30 km) and scattered hills of igneous rock and several hills over 1,000 feet (300 metres) high.

All these materials are of igneous origin, but their melting and crystallization history is complex.

Perovskite, calcium titanate mineral (CaTiO3) found as brilliant black cubes in many mafic igneous rocks, in their associated pegmatites, and in metamorphic contact zones.

geologist whose studies of the igneous rocks of Montana revealed many previously unknown varieties.

As noted previously, they are considered here primarily because they are the specific minerals used in naming alkalic igneous rocks.