نمایش نتیجه 1 تا 7 از 7 نتیجه یافت شده برای extrusive:
n: finely crystalline, generally lightcoloured extrusive igneous rock com- posed largely of plagioclase feldspar with smaller amounts of dark-coloured minerals. Compare diorite.
n: an extrusive igneous rock that is dense, fine grained, and often dark gray to black. Compare gabbro.
the most common volcanic rock. Usually fine grained.
adj: volcanic;derived from magnetic materials poured out on the earths surface, as distinct from intrusive rocks formed from magma that has cooled and solidified beneath the surface.
a description of rock resulting from a magma breach to surface and exposed to atmospheric conditions during cooling.
n: igneous rock fanned from lava poured out on the earths surface.
سنگ آذرین خروجی
n: an extrusive igneous rock that cooled so rapidly that no crystals formed at all, i.e., volcanic glass.
dark, volcanic glass.
n: a light-colored, fine-grained volcanic rock;the extrusive equivalent of granite.
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