Bits to obtain undisturbed permafrost core samples

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Bits to obtain undisturbed permafrost core samples

Li Erikson

Cryolist members,

 

On the subject of ice corers (similar to an earlier inquiry), we have a small drill rig available on the North Slope of Alaska but would like to collect shallow (<10m) “undisturbed” permafrost cores for subsequent laboratory triaxial shear strength testing (>6 cm diameter, length ~15 cm).  Does anyone have recommendations on tools and drill bits or vendors for this type of sampling of permafrost?

 

Thank you ,

 

Li   

 

_______________________

Li Erikson, Ph.D.

U.S. Geological Survey

Pacific Science Center

400 Natural Bridges Drive

Santa Cruz, CA  95060

(831) 427-4787 phone

(831) 325-9654 cell

(831) 427-4748 fax

 

 


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