Upper Cretaceous and Cenozoic stratigraphy of the Gydan Peninsula

• Published in: Russian geology and geophysics Vol. 63; no. 12; pp. 1407 - 1423
• Main Authors: Marinov, V. A, Kurchatova, A. N, Gnibidenko, Z. N, Kuzmina, O. B, Potapova, E. A, Rogov, V. V, Khamzin, R. B
• Format: Journal Article
• Language: English
• Published: Allerton Press 01.12.2022
• Subjects: Asia; biostratigraphy; Cenozoic; Chaselka Formation; clastic rocks; Commonwealth of Independent States; cores; Cretaceous; depositional environment; feldspar group; Foraminifera; framework silicates; Gydan Peninsula; Kuznetsovo Formation; lithofacies; Lulinvor Formation; magnetostratigraphy; Mesozoic; microfossils; miospores; oil and gas fields; optically stimulated luminescence; Paleogene; palynomorphs; Pleistocene; pollen; quartz; Quaternary; relative age; Russian Federation; sedimentary rocks; sediments; shale; silica minerals; silicates; spores; stratigraphy; Tertiary; Tibei-Sale Formation; Tyumen Russian Federation; unconformities; Upper Cretaceous; Yamal-Nenets Russian Federation
• ISSN: 1068-7971
• DOI: 10.2113/RGG20214361

The post-Cenomanian sedimentary sequence of the East Messo-Yakha oil and gas field in the southern Gydan Peninsula comprises twelve lithological units (beds) correlated to Upper Cretaceous, Paleogene, and Quaternary regional stratigraphic stages and formations. The facies of the sedimentary units are constrained from lithology and microfossils. The stratigraphic division is based on bio-stratigraphy (fauna and spore-pollen assemblages), paleomagnetism, and geochronology (quartz and feldspar grains dated by optically stimulated luminescence). The deposition record is interrupted by six large stratigraphic unconformities. The obtained data provide new insights into the Late Cretaceous, Paleogene, and Quaternary paleogeography of the area.