scholarly journals Aphyllophoroid fungi (Basidiomycota) of the middle part of Yenisei river basin, East Siberia, Russia

Karstenia ◽  
2015 ◽  
Vol 55 (1-2) ◽  
pp. 43-60 ◽  
Author(s):  
Anton G. Shiryaev ◽  
Heikki Kotiranta
Keyword(s):  
River Basin ◽  
Middle Part ◽  
Yenisei River ◽  
East Siberia ◽  
Aphyllophoroid Fungi

scholarly journals Aphyllophoroid fungi (Basidiomycota) in Tunguska river basin, central East Siberia, Russia

Karstenia ◽  
2015 ◽  
Vol 55 (1-2) ◽  
pp. 25-41 ◽  
Author(s):  
Heikki Kotiranta ◽  
Anton G. Shiryaev
Keyword(s):  
River Basin ◽  
East Siberia ◽  
Aphyllophoroid Fungi

Holocene vegetation and hydroclimate changes in the Kansk forest steppe, Yenisei River Basin, East Siberia

Boreas ◽  
2021 ◽  
Author(s):  
Alexandra B. Mikhailova ◽  
Anna V. Grenaderova ◽  
Irina V. Kurina ◽  
Lyudmila S. Shumilovskikh ◽  
Tamara G. Stojko
Keyword(s):  
River Basin ◽  
Forest Steppe ◽  
Yenisei River ◽  
East Siberia

scholarly journals Expanding the geographical distribution of Rhynchocypris czekanowskii (Dybowski, 1869) (Cypriniformes, Cyprinidae) in the basin of the Yenisei River, Eastern Siberia, Russia

Check List ◽  
2019 ◽  
Vol 15 (3) ◽  
pp. 369-374
Author(s):  
Ivan Vladimirovich Zuev ◽  
Sergei Mikhailovich Chuprov ◽  
Anastasiya Vyacheslavovna Zueva
Keyword(s):  
Geographical Distribution ◽  
River Basin ◽  
River Basins ◽  
Middle Part ◽  
Water Bodies ◽  
The Arctic ◽  
Eastern Siberia ◽  
Yenisei River ◽  
Small Water ◽  
The Yenisei River

The currently known geographical distribution of Chekanovskii’s Minnow, Rhynchocypris czekanowskii (Dybowski, 1869), is limited only by the lower reaches of the arctic river basins in which this species lives. We report R. czekanowskii from the small water bodies of middle part of Yenisei river basin, expanding its distribution to the south of the river basin to 55°51ʹ41ʺ N latitude, more than 100 km south from previously known occurrences of this species.

The Gedan floristic assemblage from the Late Cretaceous deposits of the Kholchan Formation of the Okhotsk-Chukotka volcanogenic belt

Palaeobotany ◽  
2014 ◽  
Vol 5 ◽  
pp. 73-93 ◽  
Author(s):  
L. B. Golovneva ◽  
S. V. Shczepetov
Keyword(s):  
River Basin ◽  
Late Cretaceous ◽  
Middle Part ◽  
Isotopic Data ◽  
Volcanogenic Belt ◽  
Stratigraphic Position ◽  
Cretaceous Deposits

The Gedan floristic assemblage occurs from upper layers of the Kholchan Formation of the Okchotsk-Chukotka volcanogenic belt (OCVB). The locality is situated at the Gedan River in the middle part of the Arman River basin. The Gedan assemblage is composed of 6 taxa: Cladophlebis sp., Sphenobaiera sp., Ginkgo ex gr. adiantoides (Ung.) Heer, Taxodium amguemensis (Efimova) Golovn., Metasequoia sp., Pagiophyllum sp. The similarity of the Gedan floristic assemblage with the Karamken and the Khirumki floristic assemblages from the Kholchan Formation of the Okhotsk sector of the OCVB allows us to join them in the Kholchan flora. This flora is distinct from more ancient Arman flora, which dated as the Turonian-Coniacian and from younger Ola flora, which dated as the Santonian-early Campanian. The age of the Kholchan flora is estimated as the Coniacian on the basis of stratigraphic position, presence of Podozamites, Metasequoia and Quereuxia and also isotopic data. This flora is equivalent with the Chaun flora of Central Chukotka, with the Aleeki flora from the Villigha and Toomahni Rivers interfluve and with the Ulya flora from the southern part of the Okhotsk-Chukotka volcanogenic belt.

Preliminary detrital zircon U-Pb Geochronology of the Wasatch Formation, Powder River Basin, Wyoming

2019 ◽  
Vol 56 (3) ◽  
pp. 247-266
Author(s):  
Ian Anderson ◽  
David H. Malone ◽  
John Craddock
Keyword(s):  
River Basin ◽  
Detrital Zircon ◽  
Middle Part ◽  
Detrital Zircons ◽  
Powder River Basin ◽  
Zircon Age ◽  
Lower Eocene ◽  
The North ◽  
Mountain Front ◽  
Fluvial Sandstone

The lower Eocene Wasatch Formation is more than 1500 m thick in the Powder River Basin of Wyoming. The Wasatch is a Laramide synorgenic deposit that consists of paludal and lacustrine mudstone, fluvial sandstone, and coal. U-Pb geochronologic data on detrital zircons were gathered for a sandstone unit in the middle part of the succession. The Wasatch was collected along Interstate 90 just west of the Powder River, which is about 50 km east of the Bighorn Mountain front. The sandstone is lenticular in geometry and consists of arkosic arenite and wacke. The detrital zircon age spectrum ranged (n=99) from 1433-2957 Ma in age, and consisted of more than 95% Archean age grains, with an age peak of about 2900 Ma. Three populations of Archean ages are evident: 2886.6±10 Ma (24%), 2906.6±8.4 Ma (56%) and 2934.1±6.6 Ma (20%; all results 2 sigma). These ages are consistent with the age of Archean rocks exposed in the northern part of the range. The sparse Proterozoic grains were likely derived from the recycling of Cambrian and Carboniferous strata. These sands were transported to the Powder River Basin through the alluvial fans adjacent to the Piney Creek thrust. Drainage continued to the north through the basin and eventually into the Ancestral Missouri River and Gulf of Mexico. The provenance of the Wasatch is distinct from coeval Tatman and Willwood strata in the Bighorn and Absaroka basins, which were derived from distal source (>500 km) areas in the Sevier Highlands of Idaho and the Laramide Beartooth and Tobacco Root uplifts. Why the Bighorn Mountains shed abundant Eocene strata only to the east and not to the west remains enigmatic, and merits further study.

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