Results 21 to 30 of about 4,814 (194)

About the structure of the Kama-Kinel trough system

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2019
Kama-Kinel Trough System (KKTS) — the structure formed in the Frasnian of the Late Devonian in the vast territory of the Volga-Ural province, is distinguished by the Upper Devonian — Lower Carboniferous deposits.
E. N. Gorozhanina   +3 more
doaj   +1 more source

THE MIOCENE AND DEVONIAN MAGMATISM AT THE JUNCTION BETWEEN THE TUVA-MONGOLIAN MASSIF AND SIBERIAN CRATON: COMMON COMPONENT OF MANTLE SOURCES AND ITS ORIGIN

open access: yesГеодинамика и тектонофизика, 2015
Devonian dikes of the Urik-Belaya and Shagayte-Gol-Urik zones and Miocene lavas of the Urik volcanic field are spatially associated with each other at the structural junction between the Neoproterozoic Tuva-Mongolian massif and Siberian craton.
Sergey V. Rasskazov   +3 more
doaj   +1 more source

New investigations of Upper Devonian wood from the north of the European part of Russia

open access: yesActa Palaeobotanica, 2020
The paper describes a continuation of our research on the distribution of archaeopteridalean plants in the north of the European part of the Russian Federation.
Anna Lyubarova, Sergey M. Snigirevsky
doaj   +1 more source

Polish Palaeobotany: 750 Million Years of Plant History as Revealed in a Century of Studies. Palaeozoic Macrofossils

open access: yesActa Societatis Botanicorum Poloniae, 2022
During the Palaeozoic Era, plants conquered the land and covered greater and greater areas from coastal lowlands to highlands. Palaeobotanical data based on macroremains from Polish Palaeozoic strata complete and enrich the picture of these processes ...
Grzegorz Pacyna, Maria Barbacka
doaj   +1 more source

Tectonic regime of the area of the Sukhoi Log geological practice in the Middle Devonian and volcanic arcs in the basement of Western Siberia

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2021
The article briefly describes current understanding of the tectonic regime of study area. It is related to the field geological practice of students of Industrial University of Tyumen.
Yu. A. Zagorovsky
doaj   +1 more source

Cone-in-cone structure: New data

open access: yesЛитосфера, 2020
Research subject. The article presents the results of investigating calcite lenses with a cone-in-cone structure from Middle Devonian clay terrigenous deposits in the Middle Timan.Methods.
I. Kh. Shumilov
doaj   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

open access: yesThe Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

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