Au-rich bimodal-mafic type volcanogenic massive sulphide deposit associated with Jurassic arc volcanism from the Central Pontide (Kastamonu, Turkey)


Gunay K., Oyan V., Donmez C., Cavdar B., Çiftçi E., Chugaev A. V., ...Daha Fazla

ORE GEOLOGY REVIEWS, cilt.141, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 141
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.oregeorev.2021.104660
  • Dergi Adı: ORE GEOLOGY REVIEWS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier
  • Anahtar Kelimeler: Central Pontide, Volcanogenic massive sulfides, Bimodal-mafic type, Say Yayla, EAST PACIFIC RISE, HIGH-TEMPERATURE METAMORPHISM, SULFUR ISOTOPE FRACTIONATION, LA-ICP-MS, HYDROTHERMAL ALTERATION, HIGH-PRECISION, VMS DEPOSITS, CHEMICAL-COMPOSITION, CHIMNEY MINERALS, PRECIOUS METALS
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

The central part of the Pontide Orogenic Belt, located in northern Anatolia, is a segment of the Alpine-Himalayan orogeny. Cangaldag Metamorphic Complex (CMC) occurs within this segment which consists of ensimatic island arc volcanics and deep sea sediments which occasionally cut cross by mafic sills/dykes. They were exposed to metamorphism under the greenschist facies conditions and remain in tectonic contact with each other. The Say yayla mineralization is one of the recently discovered volcanogenic massive sulfide (VMS) deposits in the CMC with a remarkable Au content. The mafic and felsic metavolcanic rocks are the host-rocks of the Say Yayla mineralization and the ages determined by U-Pb zircon grains of these felsic volcanic rocks range from 170 Ma to 165 Ma indicating Middle Jurassic time.