faults and folds

faults and folds

1. faults

   • compitant brittle rock that fractures easily
     • fault breccia are broken bit of angular rock from the forces that create the fault
   • brittle fracture with vertical and/or horizonatal displacement
   • types of fault
     • dip slip
       • normal fault
         • hanging wall drops
       • verse fault
     • strike slip
       • leads to a polished surface with scratches

2. folds

   • types of folds
     • sincline
     • anticline
     • isocline
       • limbs are so tight they are parralel
     • overfold
     • asemtrical folds(anticline or syncline
     • recumbent folds
     • Nappe
     • domes and basins
   • normally formed by compression acting horizontally
     • the axial plane of a fold is at right angles of axiel plane
     • hard brittle rock(compitant) may fold rather than fault is applied slowly
   • ussaly soft incompitant rock
   • tension jointsca occur in the compitant nock in the center of the folds as the compression leads to tension in the streched side of the folding bed

Bilder und Dateien der Mindmap