Seismic Activity and Fractal Geometry of Kareh Bas Fault System in Zagros, South of Iran

• 作者: Hamideh Noroozpour Mehran Arian
• 来源期刊: 地质学期刊(英文)
• 学科: 医学
• 关键词: FRACTAL Fault Kareh BAS ZAGROS TRANSVERSE Iran
• 年，卷（期）: 2015,（5）
• 页码范围: 291-299
• 页数: 9页
• 分类号: R73

摘要

Kareh Bas is one the transverse fault systems in Zagros fold-thrust belt. Kareh Bas Transcurrent Fault System with a total length of 200 Km is situated about 80 Km east of the Borazjan segment (a part of Kazerun fault zone) and 40 Km west of Shiraz. It is a nearly N-S trending right-lateral linked strike-slip fault system, and several anticlinal axes have been displaced by it. Strike separation (109 Km) of Mountain Front Fault/Flexure (MFF) of Zagros is the most important function of Kareh Bas Transcurrent Fault System. According to fractal analysis (Box-counting method) on space image maps (1:50,000) prepared from Spot data, fault related surface ruptures have non-linear patterns and fault segments have nearly plane form fractal dimensions;specially at north and south terminations. It means that, the north and south terminations of Kareh Bas Transcurrent Fault System are active (earthquake fault segments) and latter case is more active, because it is coinciding on Zagros mountain front faults (MFF).