Basic geochemical characteristics of lacustrine rocks in the Neogene Kazman-Tuzluca Basin, Northeastern Turkey


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AYYILDIZ T., Varol B., Karakas Z. S., Sozeri K.

JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY, cilt.9, sa.1, ss.141-157, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 9 Sayı: 1
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1007/s13202-018-0512-x
  • Dergi Adı: JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Emerging Sources Citation Index (ESCI), Scopus, ABI/INFORM, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), Communication Abstracts, Compendex, Metadex, Directory of Open Access Journals, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.141-157
  • Anahtar Kelimeler: Kazman-Tuzluca basin, Turabi Formation, Intermountain basin, Oligo-Miocene units, Komurlu Formation, Lacustrine source rock, ARMENIAS PROSPECTS, OIL, ANATOLIA, OLIGOCENE, PALEOENVIRONMENT, SEDIMENTOLOGY, MATURATION, EVOLUTION, INSIGHTS, KEROGEN
  • Ankara Üniversitesi Adresli: Evet

Özet

The Neogene Kazman-Tuzluca Basin is located in the NE Anatolia and extends eastward into Armenia Oktemberian Basin. The Halklak (Late Oligocene), Turabi and Tuzluca formations (Lower-Middle Miocene) are time equivalents of the organic-rich Oligo-Miocene Maikop Series in the Caspian region. However, depositional conditions within the KBT are appreciably different and source rocks are not as richer as it. The Halklak Formation has little source rock potentials, with very low values of TOC (0.04-0.25%), HI (14-90mg HC/TOC) and genetic potential-GP (i.e. Rock-Eval S-1+S-2=0.05 to 0.22mg HC/g rock). Although a peat facies sample has a relatively high TOC (6.78%), T-max of 428 degrees C, HI values are very low (45mg HC/TOC). TOC and GP values for the Tuzluca Formation are between 0.06 and 0.39wt%, and 0.16-1.51mg HC/g rock, respectively. Some levels of the Turabi Formation have TOC contents up to 6.14wt%; however, mainly T-max values are low 435 degrees C, and HI range from 25 to 54mg HC/TOC. The extract of one low-maturity Turabi sample possesses biomarker distributions of an immature rock. Low relative abundance of tricyclic terpane and dominant C29 (20R) are in accordance with the immature source rock. Some samples collected from the outcrops nearby Pliocene/Pleistocene lava series show localized maturation stage. We suggest that the Oligocene to Middle Miocene units could be more studied beneath the volcanic plateau.