STRUCTURAL GEOLOGY HATCHER 12 Flashcards
The Great Alaskan 1964 and Chilean 1960 Earthquakes are caused by what type of fault?
Thrust
Kansu and Tangshan China Earthquakes are caused by
Strike Slip
Example of Great Strike Slip Faults
San Andreas
Alpine
Motagua, Central America
Great Glen, Scotland
Brevard, Appalachians
Steeply Dipping faults that have uncertain motion
Accidents
Strike slips occuring along plate boundaries
Transforms
strike slips faults that bound edges of thrust sheets
Tear Faults
What type of stess produce strike slip
Horizontal Compression
Combinations of motion sense and step over that produces Rhomb-Graben or Pull Apart Basin
Dextral-Right Step over
Sinistral- Left Step Over
Combinations of motion sense and step over that produces Rhomb-Horst or Pull Up Ranges
Dextral-Left Step Over
Sinistral-Right Step over
Splaying terminations of a strike slip fault
flower structure/ Palm or Horse Tails
Resolution of strike slip fault into significant CONTRACTIONAL deep slip motion results from oblique plate convergence where Dominant motion is Strike slip
Inshort combination of Thrust and Strike Slip pero mas dominant si strike slip
Transpression
Normal Fault + Strike Slip
Trenstension (Extension)