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Geologic Hazards

What Makes a Sinkhole a Sinkhole?

April 23, 2010 rockman Geologic Hazards Comments Off on What Makes a Sinkhole a Sinkhole?

The Florida Geological Survey probably deals with more sinkholes than most agencies. The most frequent geologic cause of sinkholes is dissolution of limestone and other soluble rocks and the collapse of the soil cover over […]

Mount Hood, Oregon, as seen from Lost Lake. United States Geological Survey photo taken in 1985 by Lyn Topinka.
Weekend CUP

Weekend CUP August 9, 2010

August 9, 2010 rockman Weekend CUP Comments Off on Weekend CUP August 9, 2010

Protocols for Geologic Hazards Response by the Yellowstone Volcano Observatory – Source: USGS 40 stranded by Leadville-area mudslides – Source: KWGN via USGS Landslide Events 12 Rules for Making Better Spreadsheets – Source: Chandoo.org Most […]

Rockfall fence being installed at Edinburgh Castle
Geologic Hazards

Rockfall Mitigation at Edinburgh Castle, Scotland

November 5, 2009 rockman Geologic Hazards Comments Off on Rockfall Mitigation at Edinburgh Castle, Scotland

Rockfall netting and dowels were installed at Scotland’s Edinburgh Castle in an effort to reduce risk to tourists, road and rail traffic from loose basalt rocks that form the foundation of this iconic landmark. More […]