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- Title
Drainage evolution in response to fold growth in the hanging-wall of the Khazar fault, north-eastern Alborz, Iran.
- Authors
Ghassemi, Mohammad Reza
- Abstract
The Khazar fault is an active thrust fault in the northern part of the Alborz Range, which is associated with folding (the Khazar anticline) in its hanging-wall. Regional geological studies indicate activity of the fault in Cenozoic time, and active propagation of the fault-related folding towards the west. The Neka river drainage basin, which is a longitudinal river flowing mostly in the backlimb of the Khazar anticline, shows evidence for active folding and faulting influencing drainage evolution. Observations are made in different parts of the Neka river course, according to which a new morphotectonic feature is introduced within the river basin, termed as ‘tilted reach’. This feature is considered as a result of river course tilting in the backlimb of the growing fold, diversion, and capture of the river by other rivers. Consecutive episodes of similar events would have resulted in the development of a long drainage basin parallel to the growing fold structure.
- Subjects
ELBURZ Mountains (Iran); IRAN; GEOLOGIC faults; DRAINAGE; FOLDS (Geology); STRUCTURAL geology
- Publication
Basin Research, 2005, Vol 17, Issue 3, p425
- ISSN
0950-091X
- Publication type
Article
- DOI
10.1111/j.1365-2117.2005.00271.x