Results for: Basalt

In Geology

What is basalt?

basalt underlines more of earth surface than any other rock type . most areas within earth's ocean are under lain basalt . although basalt is much uncommon on continents, lava (MORE)
In Geology

What is basaltic?

Basaltic is a reference to magma that is destined to become basalt when cooled after eruption, or in reference to a solidified flow, rock, or structure consisting of basalt.
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In Geology

Is basalt foliated?

Basalt is not foliated. Foliated is a term used to describe the layering seen in metamorphic rocks such as slate and schists.
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Is basalt smooth?

It can be if it takes the form of a type of lava flow called  pahoehoe. However, basalt may also come in the form of jagged a'a  flows.
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In Geology

How permeable is basalt?

Intact, fresh (unweathered) basalt has a very low permeability of around 10-12 to 10-15 cm2. As such it is generally classified as being impervious.
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How valuable is basalt?

It is not a precious or semi-precious stone. It has some value as a building material, and is used as crushed stone for paving highways and making concrete. I pay about $25 pe (MORE)