Stories tagged outcrop

Folded Rock North of Loch Melfort in Scotland
Folded Rock North of Loch Melfort in ScotlandCourtesy Anne Burgess

A rock mass visible at the surface is named an "outcrop" by geologists. Most of these outcrops are made of a single, homogenous kind of rock (e.g. basalt) but in many cases rocks are layered, fractured, cleaved, or show more complicated patterns on their surface. At high temperatures and pressures inside the earth, rocks can move slowly, or can fracture creating fault planes. Outcropedia is a website meant to show a collection of such outcrops.

Outcropedia is the brainchild of three structural geologists : Cees Passchier, Mark Jessell, and Hermann Lebit. It uses a GoogleEarth template, and by clicking on a datapoint, you can see a photograph or drawing with explanatory text. Many of the outcrops included are in remote areas of planet Earth. Outcropedia welcomes new submissions, so if you have an image of an outcrop, submit it for addition!