An Investigation of the Origin and Nature of Contraction Fissures in the Vicinity of Grand Forks, North Dakota

• Main Author: Waxvik, John N.
• Format: Text
• Language: unknown
• Published: UND Scholarly Commons 1964
• Subjects: Grand Forks; Ice; permafrost; wedge*
• Online Access: https://commons.und.edu/senior-projects/48; https://commons.und.edu/cgi/viewcontent.cgi?article=1047&context=senior-projects

Cracks appearing in vegetation-free areas and on level surfaces in the vicinity of Grand Forks, North Dakota were investigated during the winter and spring months of 1964. The width of these cracks was measured to determine if there was any significant change in their size that would correspond to a...