Near-surface folding along an active fault: seismic or aseismic?


Cetin H.

TECTONOPHYSICS, cilt.292, ss.279-291, 1998 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

The Meers fault in southwestern Oklahoma has been active in recent times. The most recent movement occurred about 1100 years ago in the late Holocene. During the faulting, the Quaternary age alluvial deposits along the fault were folded as well as ruptured. In some places, almost all of the deformation is accommodated by ductile folding of these deposits. Having this type of deformation with no record of an earthquake associated with the Meers fault during historical times raises the question whether the present scarp was formed seismically by earthquake event(s), or aseismically by slow deformation (aseismic fault creep).