What Basalt Granite

Basaltic crust is dark and thin and heavy while granite is light and accumulates.

What basalt granite.

Basalt is an extrusive igneous rock whereas granite is an intrusive ingenuous rock. Compared to the familiar granite of the continents basalt ba salt is darker denser and finer grained. Summary of basalt vs. While basalt rocks split along columnar planes granite rocks give way along horizontal planes.

Basalt extrusive igneous volcanic rock that is low in silica content dark in color and comparatively rich in iron and magnesium. As it turns out most of the ocean floor is basalt and most of the continents are granite. Basalts may be broadly classified on a chemical and petrographic basis into two main groups. Basalt is the dark heavy volcanic rock that makes up most of the world s oceanic crust.

One other difference between basalt and granite pertains to the way these two types of rocks split when putting under pressure. It wants to be there and heat is the key which unlocks the door. Some of it erupts on land too but to a first approximation basalt is an oceanic rock. It forms from lava flows which extrude onto the surface and cool.

An igneous volcanic rock used in architecture since the roman era basalt is durable like granite with similar features to limestone. Learn more about basalt in this article. The deep gray hues of basalt make it a perfect versatile choice for both internal and external flooring and walls. Basalt is more common in oceanic crust while granite is more common in continental crust.

The trick is to heat the basalt back up again so it can melt and give the iron another shot at the core. The tholeiitic and the alkali basalts.