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P, M and G Tectonites Palaeostrains Palaeostress Analysis Palaeostress analysis, from striae Palaeostresses Palinspastic construction Paracrystalline rotation Parallel folds Passive folds Passive marker Peierls barrier Pelitic schists Pencil cleavage and pencil structure Penecontemporaneous structures Penetrative structures Penetrative, pervasive foliation Percolation threshold Periclines Periodicity of structures Permocarboniferous Coal fields Permocarboniferous glaciation in Gondwanaland Perturbations, banded, P, S,PS Phi versus alpha plot Photoelastic studies Phyllite Phyllonite Pi against beta diagram pi diagrams for polyphase deformation Pillowed tholeiites, deformed Pinch and swell structures Pinnate fractures Pitch or Rake Planar elements Plane defect Plane Noncylindrical folds Plane Stress Plastic deformation and pressure solution in Oolites Plasticity Plasticity, intracrystalline Plate boundaries, plate motions Plate tectonics, driving mechanism Plate Tectonics, relation to mineralization Plumose markings Plunge, amount and direction Plunging and nonplunging folds Point defects Poisson distribution Poisson's ratio and number Polar net
Polar wandering, polar wander paths |
Pore fluid pressure and fracturing Pore pressure, effect on normal stress Porphyroblast growth, simple shear Porphyroblast growth, simulatio Porphyroblast growth, static
Pure shear superimposed on simple shear |