Leg 1 of the "Ferder" drilling and site investigation programme.
Bad weather and equipment problems resulted in considerable loss of drilling time. 6 boreholes were attempted but only 1 was entirely unsuccessful. Consequently, much useful geological information was obtained despite hindrances encountered. Core recoverey ranged from a few percent to >90% in the core runs and the variation is attributable to various combinations of weather, bit types, bit weight, mud volumes and the experience of the driller.
Alexander C Skinner (Institute of Geological Sciences Marine Operations)
North East Atlantic Ocean (limit 40W)
Geology and geophysics
In-situ seafloor measurement/sampling
Quantity: number of cores = 6 Description: drilling of boreholes