Fri, 25 Jul 2014 23:00:21 +0000
Recumbent chevron folds in Early Pennsylvania graywacke and shale of the Bude Formation at Millook Havem on the north coast of Cornwall, southwestern Britain, record the development and deformation of the Varsican foreland basin -- testifying to the closure of the Rheic Ocean during the mid- to Late Pennsylvanian Variscan orogeny. From: GSA Today, Vol. 18, No. 12 (Dec.2009)
stratified rock formations Pancake Rocks - NZ
These salt deposits were formed during the “Messinian Salinity Crisis”, a geological event during which the Mediterranean Sea was cut off from the Atlantic Ocean and dried up (or mostly dried up), creating massive deposits of previously dissolved salts. This occurred at the end of the Messinian age of the Miocene epoch, from 5.96 to 5.33 million years ago, ending when the Atlantic again flowed into the basin
Fingals Cave, Scotland
Folded banded iron formation with shale interbeds, exposed in a pavement near Soudan, Minnesota.
Cliffs near Bude, Cornwall, UK, 2009 | Flickr: Intercambio de fotos
Sedimentary Rock | Sedimentary rock eroded by wind and water. Photographed on Gabriola ...
Syncline axis (detail), Wrangle Point, near Bude, Cornwall. by Earthwatcher, via Flickr
A Fulgurite or Petrified Lightning is made when lightning strikes loose sand. It vaporizes a thin wormhole and melts the zone around it, creating an instant froth of natural glass. In 1996 the International Center for Lightning Research and Testing excavated this fulgurite to a depth of nearly 6 meters, then removed it for museum display.
Chevron folds in ribbon chert, southern Oregon coast.
Chevron folds with flat-lying axial planes, Millook Haven, North Cornwall, UK G
Rock Formation - Sandymouth, Near Bude, North Cornwall