from The Century Dictionary and Cyclopedia
- n. In geology, a reversed fault; a fault along an inclined fissure whose upper side has been forced by compressive strain to slide up on its lower.
Sorry, no etymologies found.
Dr. WATTERS: Well, it tells us that something global has happened, I mean, because again, we didn't know that these thrust-fault scarps occurred everywhere on the moon until we had the Lunar Reconnaissance Orbiter camera images.
So as the interior of the moon cooled, it contracted, and that contraction ends up causing the crust of the moon to have to adjust to that decrease in volume and creates the thrust-fault scarps that we're looking at.
But what's really interesting about these young, these thrust-fault scarps is the fact that, one, that they're young.
When they occur underwater, thrust-fault earthquakes are far more likely to create tsunamis than tremors on strike-slip faults, said David Schwartz, an earthquake geologist with the geological survey in Menlo Park, Calif.