Notes: Usefulness of tool for application: VG = very good; G = good; F= fair; P = poor. (1) Tools having the same number may be combined in a string. (2) Logs other than sonic and density can be converted to pseudosonic/density, based on known log responses to lithology and porosity. (3) Percentages of minerals with abundance > 3% were determined from simultaneous inversion of several logs. (4) Quality control for other logs. (5) Detailed mapping of fractures, faults, foliations, and formation structures; analysis of depositional environments; formation dip. (6) Shear velocity, apparent attenuation. (7) Stress directions, fracture orientation, structural dip, formation morphology. (8) Magnetic reversals, stratigraphy, fault zones.