Structural analyses of Saphane relay ramps and fault linkage evolution in active extensional regime, western Turkey

Creative Commons License

Gurboga S.

TURKISH JOURNAL OF EARTH SCIENCES, cilt.23, sa.6, ss.615-626, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 6
  • Basım Tarihi: 2014
  • Doi Numarası: 10.3906/yer-1405-16
  • Dergi Adı: TURKISH JOURNAL OF EARTH SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.615-626
  • Anahtar Kelimeler: Relay ramp, normal faulting, Erdogmus-Yenigediz graben, western Turkey, GEDIZ GRABEN, TECTONICS, SYSTEM, STRESS, ZONES, GEOMETRY, PLATE, BASIN, DISPLACEMENT, DEFORMATION
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The Saphane relay ramps (SAR-I and SAR-II) are well-developed structures formed by extensional tectonic settings in western Turkey. Their formation is controlled by the configuration of 2 different breaching faults located in between and the overlapping area of 3 normal faults, which are the Saphane, Gurlek, and Yumrutas faults. The relay ramps form within a similar to 3 km-wide and similar to 12 km-long interaction zone between 045 degrees and 060 degrees trending faults on the northern boundary of the Erdogmus-Yenigediz graben. Some variations in structural styles and its products (for example, overlapping slip-lines (slickenlines), fractures, and antithetic-synthetic faults) are observed along the breaching faults in the relay ramps that were probably created during the formation of the relay structures. In this research, field data from these segmented normal faults having displacement and an interaction area are presented. This normal faulting that resulted from the recent extensional tectonic regime is related to the whole crustal deformation in western Turkey, and the progressive stages have created such a characteristic structure, the relay ramp.