How does a sheeted dike complex form? Molten rock surges upward along numerous vertical fractures. Some cools and solidifies to form new dikes. These new dikes intrude older dikes which are still warm and weak.

How do sheeted dikes form?

Dykes are perpetually formed as long as magma continues to flow through the plate boundary, creating a distinct, stratigraphic-like sequences of rocky columns within the seafloor. Ophiolites are formed when these sections of oceanic crust are revealed above sea level and embedded within coastal crust.

Where are Ophiolites found?

Ophiolites have been found in Cyprus, New Guinea, Newfoundland, California, and Oman. The Samail ophiolite in southeastern Oman has probably been studied in the greatest detail. The rocks probably formed in the Cretaceous not far from the what is now the Persian Gulf.