Geology
April 11, 2022
Case Study: Lykins Formation
Small but significant areas of Colorado are underlain by bedrock that is composed of evaporative…
karst
Karst is a type of topography that is typically characterized by sinkholes and caves. These features result from the dissolution of limestone, gypsum, and other soluble rocks. Large areas of Colorado are underlain by Mesozoic and/or Paleozoic evaporite deposits that often exhibit karst topography.
Hazards
July 12, 2018
Collapsible Soils
By Jonathan White, Senior Engineering Geologist, Emeritus At the end of the 19th and beginning of…
Hazards
May 5, 2015
Evaporite Karst Subsidence
[ED: Originally written by Jonathan White, Senior Engineering Geologist (emeritus staff) for a 2001 volume of…
Hazards
March 13, 2013
The Science of Sinkholes
This video, from the U.S. Geological Survey, explores the geological factors behind sinkholes and the related science. Narrated by Randall…
General
March 4, 2005
Dr. Cílek on the Bohemian karst
Dr. Cílek, the Director of the Czech Republic’s Academy of Sciences Institute of Geology delivers a…
Hazards
January 17, 2005
Case Study: Roaring Fork sinkhole
[ED: This report from January 17, 2005 was written by Jon White, (Senior Engineering Geologist, Emeritus). Lightly edited for dated…
Geology
February 4, 2003
Case Study: Colorado Mountain College, Spring Valley
In early February of 2003, a 24-foot-wide (7.5 m) sinkhole spontaneously opened on a soccer field at the Colorado Mountain…