Results 21 to 30 of about 3,087 (195)

Taphonomy and paleoecology of fauna and flora from deltaic sandstones of Mospinka Formation (Middle Carboniferous) of Donets Basin

Geo&Bio, 2019
The taphonomic and ecological features of the predominantly non-marine fauna and terrestrial flora from two deltaic sandstones in the middle part of the Mospinka Formation (Upper Bashkirian, Lower Pennsylvanian) were studied.
Vitaliy Dernov
doaj   +1 more source

Climate monitoring as an indicator of the hydrological condition of the Siversky Donets river basin

Вісник Харківського національного університету імені В.Н. Каразіна. Серія Геологія. Географія. Екологія, 2022
Formulation of the problem. Today, in changing climate conditions, it is very relevant to study the impact of regional climate change on the regime of hydrological indicators and ecological status of the Siversky Donets river basin within Kharkiv region.
Svitlana Reshetchenko, Sviatoslav Dmitriiev, Nadiia Cherkashyna, Tetiana Tkachenko, Vitaliy Sych   +4 more
doaj   +1 more source

AMS radiocarbon dating from the Neolithic of eastern Ukraine casts doubts on existing chronologies [PDF]

, 2015
The Seversky Donets River (Northern Donets) basin in eastern Ukraine and the Lower Don River valley in Russia were inhabited by populations that have been considered to be one of the earliest pottery-using cultures in Europe.
Lillie, Malcolm, Motuzaite-Matuzeviciute, Giedre, Telizhenko, Sergey   +2 more
core   +1 more source

Origin, Accretion, and Reworking of Continents

Reviews of Geophysics, Volume 59, Issue 3, September 2021., 2021
Abstract The continental crust is unique to the Earth in the solar system, and controversies remain regarding its origin, accretion and reworking of continents. The plate tectonics theory has been significantly challenged in explaining the origin of Archean (especially pre‐3.0 Ga) continents as they rarely preserve hallmarks of plate tectonics.
Rixiang Zhu, Guochun Zhao, Wenjiao Xiao, Ling Chen, Yanjie Tang   +4 more
wiley   +1 more source

Cephalopods from the Middle Carboniferous of the Donets Basin (Luhansk region, Eastern Ukraine)

Geo&Bio, 2018
Six forms of cephalopods are described from Middle Carboniferous deposits (Man-drykinka and Mospinska Formations) of the Donets Basin. The collection includes three nautiloids: a new species Millkoninckioceras udovichenkoi sp.
V. Dernov
doaj   +1 more source

Sedimentary Structure Derived From Multi‐Mode Ambient Noise Tomography With Dense OBS Network at the Japan Trench

Journal of Geophysical Research: Solid Earth, Volume 126, Issue 6, June 2021., 2021
Abstract We derive the 3‐D S‐wave velocity structures of sediments and upper crust in the region off Ibaraki at Japan Trench subduction zone by applying ambient noise tomography to a dense array of short‐period ocean bottom seismometers (OBSs). The cross‐spectra were calculated using 27 or 142‐day continuous seismic data, and the phase velocities of ...
Lina Yamaya, Kimihiro Mochizuki, Takeshi Akuhara, Kiwamu Nishida   +3 more
wiley   +1 more source

Population and distribution of beavers Castor fiber and Castor canadensis in Eurasia

Mammal Review, Volume 51, Issue 1, Page 1-24, January 2021., 2021
A century ago, overhunting had reduced Eurasian beaver Castor fiber populations to c. 1200 animals in scattered refugia from France to Mongolia. Reintroductions and natural spread have since restored beavers to wide areas of their original range. The population has more than tripled since the first modern estimate in 1998, to c. 1.5 million.
Duncan J. Halley, Alexander P. Saveljev, Frank Rosell   +2 more
wiley   +1 more source

High-Precision U-Pb Zircon Age Calibration of the Global Carboniferous Time Scale and Milankovitch Band Cyclicity in the Donets Basin, Eastern Ukraine [PDF]

, 2010
High-precision ID-TIMS U-Pb zircon ages for 12 interstratified tuffs and tonsteins are used to radiometrically calibrate the detailed lithostratigraphic, cyclostratigraphic, and biostratigraphic framework of the Carboniferous Donets Basin of eastern ...
Aisenverg, Aisenverg, Aisenverg, Aizenverg, Aizenverg, Alekseev, Algeo, Barrick, Barrick, Barskov, Belka, Birgenheier, Black, Boardman, Brazhnikova, Briand, Burger, Chekunov, Chernov'yants, Chernykh, Chernykh, Chesnut, Condon, Cozar, Davydov, Davydov, Davydov, Davydov, Davydov, Davydov, Davydov, Davydov, Davydov, Davydov, Devuyst, Devuyst, Dickinson, Ellison, Fisunenko, Fohrer, Gastaldo, Gerstenberger, Goreva, Grozdilova, Haq, Heckel, Heckel, Heckel, Heckel, Heckel, Heckel, Hess, Hess, Inosova, Isakova, Ivanova, Izart, Izart, Izart, Izart, Jaffey, James L. Crowley, Kabanov, Kagarmanov, Khodjanyazova, Kireeva, Klein, Klein, Kozitskaya, Krogh, Kuiper, Kulagina, Kullmann, Lebedev, Levenshtein, Lutugin, Makhlina, Mark D. Schmitz, Mattinson, Menning, Milanovsky, Min, Montanez, Mundil, Nemirovskaya, Nemirovskaya, Nemyrovska, Nemyrovska, Nikitin, Nikolaeva, Pazukhin, Poletaev, Poletaev, Poty, Poulsen, Putrja, Ramezani, Rasbury, Rauser-Chernousova, Rauser-Chernousova, Renne, Ritter, Ross, Rotai, Savchuk, Schellwien, Schmitz, Schmitz, Shchegolev, Shchegolev, Skompski, Somerville, Soreghan, Soreghan, Stovba, Stovba, Tschernyshev, Vdovenko, Vdovenko, Vdovenko, Villa, Villeneuve, Vladimir I. Davydov, Vladislav I. Poletaev, Wang, Wanless, Wardlaw, Zaritskiy, Zhemchuzhnikov   +128 more
core   +2 more sources

Reassessment of mid-Carboniferous glacial extent in southwestern Gondwana (Rio Blanco Basin, Argentina) inferred from paleo-mass transport of diamictites [PDF]

, 2013
Late Paleozoic glacial diamictites occur in many localities in western Argentina, indicating that the region was strongly affected by glaciation during the mid-Carboniferous (late Serpukhovian–early Bashkirian).
Gulbranson, Erik L., Hull, Clara, Isbell, John L., Limarino, Carlos Oscar, Marenssi, Sergio Alfredo, Meyer, Kyle, Montañez, Isabel P.   +6 more
core   +1 more source

What the distribution of sperm size can tell about the stability of spermatogenesis in hybrid frogs Pelophylax esculentus

Вісник Харківського Національного Університету Імені В.Н. Каразіна: Серія Біологія, 2021
Interspecies hybrid frogs Pelophylax esculentus and one of its parental species Pelophylax ridibundus inhabit the Siversky Donets center of diversity of water frogs in Eastern Ukraine.
A. Fedorova, E. Pustovalova
doaj   +1 more source