packingpan filterpanelpangaeapanningpantographparagenesisparagenetic sequenceparallel connection networkparallel connection of capsparallel cutparallel faultsparallel foldparallel serie connection of capsparamagnetic mineralsparamagnetic rockspart per billionpart per millionpartial analysispartial combustionparting densitypartition curvepassed particlespassive supportpath finder elementspeak shear strengthpeak strengthpebble millpenaltypenetration ratepentaerythritol tetranitratepercolating leachingperfect mixingperforatorperforatriceperiodic stripping ratioperipheral dischargeperipheral faultspermanent magnetspermanent supportpermeability coefficientpermissible dynamiteperpendicular slipphacolithphosphoritephotphoto sedimentometerphotometerphysical adsorptionphysical availability