Determination of structural characteristics of Tuzgolii Fault Zone using gravity and magnetic methods, Central Anatolia

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Dincer B., IŞIK V.

BULLETIN OF THE MINERAL RESEARCH AND EXPLORATION, cilt.162, ss.145-174, 2020 (ESCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 162
  • Basım Tarihi: 2020
  • Doi Numarası: 10.19111/bulletinofmre.661245
  • Dergi Adı: BULLETIN OF THE MINERAL RESEARCH AND EXPLORATION
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, Directory of Open Access Journals, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.145-174
  • Anahtar Kelimeler: Geophysical method, Downward continuation, Tuzgolii Basin, Fault Zone, Central Turkey, LATE CRETACEOUS EXTENSION, BASIN CENTRAL ANATOLIA, TECTONIC EVOLUTION, CENTRAL TURKEY, CRYSTALLINE COMPLEX, CANKIRI BASIN, CENOZOIC ROTATIONS, SUTURE ZONE, COLLISION, DEFORMATION
  • Ankara Üniversitesi Adresli: Evet

Özet

The anomaly maps and amplitude and wavelength changes of the anomalies obtained from gravity and magnetic methods can provide to identify fault traces in the underground. The Tuzgolti Fault Zone (TFZ), the NW-SE striking active fault zone in central Anatolia, includes fault strands that cut the basement and basin deposits. Our magnetic and gravity analysis suggests that Tuzgolti Basin and its surroundings are characterized by distinct depression and ridge areas. Gravity anomaly data show the presence of faults at depths of sea level (0 m), -1000 m, -2000 m, -3000 m, and -4000 m. These faults are mostly normal and reverse faults, as well as the lesser amount of vertical faults (high-angle normal/reverse faults) with NW-SE, N-S, and NE-SW-striking. The normal faults are of the structural development and the deposition of the Tuzgolti Basin units, which occurred late Cretaceous-Middle Eocene and Early Miocene-Quaternary Periods. The reverse faults originated from the result of the regional-scale compressional regime during Middle Eocene-Late Oligocene/ Early Miocene based on the fault dating data from the literature. The active TFZ, including several fault strands, are relatively younger faults in the region that have initiated to develop during faulting events from after Middle Miocene or Early Pliocene.