What Basalt Granite

As it turns out most of the ocean floor is basalt and most of the continents are granite.

What basalt granite.

Basalt extrusive igneous volcanic rock that is low in silica content dark in color and comparatively rich in iron and magnesium. It forms from lava flows which extrude onto the surface and cool. It wants to be there and heat is the key which unlocks the door. Basalt is more common in oceanic crust while granite is more common in continental crust.

Some of it erupts on land too but to a first approximation basalt is an oceanic rock. The trick is to heat the basalt back up again so it can melt and give the iron another shot at the core. Its principle minerals include. Obviously this difference exists.

Basalt is the dark heavy volcanic rock that makes up most of the world s oceanic crust. The tholeiitic and the alkali basalts. Basalt is an igneous volcanic rock that forms commonly in oceanic crust and parts of continental crust. Compared to the familiar granite of the continents basalt ba salt is darker denser and finer grained.

Basaltic crust is dark and thin and heavy while granite is light and accumulates. While basalt rocks split along columnar planes granite rocks give way along horizontal planes. 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.

Basalts may be broadly classified on a chemical and petrographic basis into two main groups. Summary of basalt vs.