TY - RPRT TI - Basic data and preliminary density and porosity profiles from three borehole gravity surveys made in the Kuparuk River and Prudhoe Bay oil fields, Alaska AU - L. A. Beyer AU - F. G. Clutsom PY - 1989 DO - 10.3133/ofr89369 UR - https://pubs.usgs.gov/publication/ofr89369 ID - ofr89369 ER -