As observed in Lesson 3, at low pressures and temperatures rock is a brittle material that will fail by fracture if the stresses become sufficiently large. When a lateral displacement takes place on a ...

NORFOLK, Va. — Fault lines are fractures or breaks in the Earth's crust where tectonic plates move past each other, often resulting in earthquakes. These geological features are classified into three ...

Big Four Mountain's mystery: 82-degree tilted rock layers defy geology's horizontal rule. There’s a basic rule in geology: Sedimentary rock layers build up horizontally. So how did the slabs of Big ...

TORONTO — Scientists have made further strides toward identifying the key circumstances for catastrophic earthquakes, according to researchers. What separates a region prone to mild earthquakes ...

Schematic figure of the subduction zone underneath the Kanto region (left) in Japan and the spatial distribution of magnitude 2 to 6 earthquakes on the subduction zone at 60 to 70 kilometers below ...

Doug winds his way through the sculpted red rock formations of Utah and Arizona. In red rock country the Earth’s crust has been pushed up by the collision of two tectonic plates, lifting the land in ...

A team of geophysicists at the University of Colorado at Boulder has developed a new technique to visualize the colliding rock bodies beneath the Himalaya with unprecedented detail, answering a number ...