Pillow Lava, Dikes, Gabbro, and Peridotite

The video tutorial explores the structure and formation of oceanic crust, starting with sediment layers and moving to the formation of pillow lava at mid-ocean ridges. It explains the role of sheeted dykes as magma conduits and the formation of gabbro. The tutorial also covers layered peridotite and the process of magma differentiation. Finally, it discusses ophiolites, their formation, and geological significance, using the Somali Ophiolite as a reference point for seismic studies.

What is the process by which pillow lavas are formed?

Describe the characteristics of basaltic rocks.

What are sheeted dikes and how are they formed?

Explain the significance of the gabbro layer in oceanic crust.

How does the process of differentiation affect magma composition?

What is the role of olivine in the composition of oceanic crust?

What is an ophiolite and where can it be found?