Exploration geophysics calculator programs for use on Hewlett-Packard models 67 and 97 programmable calculators

Program listing, instructions, and example problems are given for 12 programs for the interpretation of geophysical data, for use on Hewlett-Packard models 67 and 97 programmable hand-held calculators. These are (1) gravity anomaly over 2D prism with <_ 9 vertices Talwani method; (2) magnetic anomaly (AT, AV, or AH) over 2D prism with £ 8 vertices^--Talwani method; (3) total-field magnetic anomaly profile over thick sheet/thin dike; (4) single dipping seismic refractor interpretation and design; (5) <_ 4 dipping seismic refractors interpretation; (6) <_ 4 dipping seismic refractors design; (7) vertical electrical sounding over £ 10 horizontal layers Schlumberger or Wenner forward calculation; (8) vertical electric sounding: Dar Zarrouk calculations; (9) magnetotelluric planewave apparent conductivity and phase angle over <_ 9 horizontal layers forward calculation; (10) petrophysics: a.c, electrical parameters; (11) petrophysics: elastic constants; (12) digital convolution with £ 10-length filter.