fault plane

American  

noun

Geology.

1. fault6

---

Etymology

Origin of fault plane

First recorded in 1885–90

Example Sentences

The abundance of fluids within these tiny holes reduces friction along the fault plane, allowing the two rock blocks on either side to slide past each other more easily and generate small earthquakes.

From Science Daily

The grinding of the two sides against each other on the fault plane sends out waves of motion of the rock in every direction.

From Scientific American

One of those inspections drew attention to a clear fault plane that cut across the passage.

From Scientific American

When that pressure built up, the surface around that had to move — producing sudden earth movement on a fault plane that separates the ancient sea floor and Kilauea volcano.

From Los Angeles Times

The fault plane that moved is the boundary between the ancient sea floor and Kilauea.

From Los Angeles Times