Journal
RUSSIAN JOURNAL OF PACIFIC GEOLOGY
Volume 10, Issue 4, Pages 283-298Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1819714016040072
Keywords
stratigraphy; Paleogene; Neogene; fossil plants; palynological analysis; isotopic age; Sikhote Alin
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Funding
- Far East Branch of the Russian Academy of Sciences [15-I-2-070, 15-I-2-42, VANT 14-003]
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The Paleogene-Neogene stratigraphic scale of the Zerkal'naya River basin is modified with account for new isotopic and paleobotanical data. It is established that the Tadushi Formation and underlying volcanics, which were previously considered as representing transitional Cretaceous-Paleocene strata, are separated in the section of the Ustinovka quarry by a significant stratigraphic hiatus. According to the new data, the volcanics and the Tadushi Formation are established as Campanian and Late Paleocene in age, respectively. The Bogopol Formation in the type section is dated back to the Middle-Late Paleocene. The Svetlyi Formation is now considered to be Early Eocene in age, rather than Late Eocene-Oligocene as previously thought. A new variant of the stratigraphic scale is proposed for the Paleogene-Neogene deposits of the Zerkal'naya depression.
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