Scientists at Sea / Fast Facts  
CORK-I Observatory
    A. Cartoon of a borehole observatory installed in an overpressured hole drilled through the sediments and into a basement topographic high (buried seamount). B. This is a cartoon of an early generation CORK observatory where the basement fluids enter the borehole through perforated steel casing,and rise up to top of borehole where they can be sampled at the top of the CORK. This provided an exciting early opportunity to sample unlimited volumes of basement fluids…but with contamination issues.