basalto

basalto

Fine-grained, dark-colored extrusive igneous rock with less than about 52 weight percent silica (SiO₂). Because of its low silica content, basalt has a low viscosity (resistance to flow. ) Basalt is composed primarily of plagioclase feldspar and pyroxene; other minerals such as olivine and ilmenite are usually present. Basalt is the most common volcanic rock on the terrestrial planets.

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Industrie/Domein: Astronomy
Category: Planetary science
Company: PSRD
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Gerelateerde termen

Basalto

Geography; Physical geography

Una roca ígnea, de grano fino y similar al vidrio, formada por lava enfriada rápidamente, a menudo bajo el agua.

astrobiología

Astronomy; Planetary science

Study of the origin, distribution, and destiny of life in the universe. These are interdisciplinary studies involving astronomers, astrophysicists, biologists, chemists, ...

organismo

Astronomy; Planetary science

Any form of animal or plant life.

extrusivas

Astronomy; Planetary science

Refers to igneous rocks erupted on the surface.

atmósfera

Astronomy; Planetary science

Mixture of gases that surround and are gravitationally attached to a planet.

lava

Astronomy; Planetary science

Fluid magma that flows onto the surface of a planet or moon; erupted from a volcano or fissure. Also, the rock formed by solidification of this material.