Diversion of River Courses Across Major Strike-Slip Faults and Keirogens


Şengör A. M. C.

ACTIVE GLOBAL SEISMOLOGY: NEOTECTONICS AND EARTHQUAKE POTENTIAL OF THE EASTERN MEDITERRANEAN REGION, vol.225, pp.93-101, 2017 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 225
  • Publication Date: 2017
  • Title of Journal : ACTIVE GLOBAL SEISMOLOGY: NEOTECTONICS AND EARTHQUAKE POTENTIAL OF THE EASTERN MEDITERRANEAN REGION
  • Page Numbers: pp.93-101

Abstract

Studies along the North Anatolian fault and other major active strike-slip faults and keirogens in the world have revealed complications in river offsets that cannot be explained simply by preexisting slope conditions and capture events. These seem to result from the presence of numerous lesser strike-slip faults parallel with the main displacement zone of a large strike-slip fault and from the structure and topographic evolution of synthetic and antithetic pull-apart basins. Some cuspate pull-apart-basin-bounding normal faults may give the mistaken impression of a river bending into a strike-slip fault because of numerous parallel faults. Other complications result from the presence of structures that predate the formation of a through-going main strike-slip fault. Although fluvial geomorphology is a very powerful tool in investigating strike-slip fault systems, it must be pursued parallel with careful structural mapping lest it prove misleading.