Results 21 to 30 of about 3,248,245 (131)

Devonian–Carboniferous extension and Eurekan inversion along an inherited WNW–ESE-striking fault system in Billefjorden, Svalbard

Open Research Europe, 2023
Background The Billefjorden area in central Spitsbergen hosts thick Lower–lowermost Upper Devonian, late–post-Caledonian collapse deposits presumably deformed during the Late Devonian Svalbardian
Jean-Baptiste P. Koehl, Lis Allaart, Riko Noormets   +2 more
doaj   +1 more source

Facies-succession and architecture of the third-order sequences and their stratigraphic framework of the Devonian in Yunnan-Guizhou-Guangxi area, South China

Journal of Palaeogeography, 2013
The Caledonian orogeny at the end of the Silurian resulted in great changes in the palaeogeography in the Yunnan-Guizhou-Guangxi area of South China; the continental area of the Early Paleozoic evolved into the extensive Dian-Qian-Gui Sea in the Late ...
Mei Mingxiang, Maurice E. Tucker
doaj   +1 more source

Biostratigraphic analysis of core samples from wells drilled in the Devonian shale interval of the Appalachian and Illinois Basins [PDF]

, 1978
A palynological investigation was performed on 55 samples of core material from four wells drilled in the Devonian Shale interval of the Appalachian and Illinois Basins.
Martin, S. J., Zielinski, R. E.
core   +1 more source

Chondrichthyan spines from the Famennian (Upper Devonian) of Russia [PDF]

, 2020
© 2020 Polish Academy of Sciences. All rights reserved. Lebedev, O.A., Ivanov, A.O. and Linkevich, V.V. 2020. Chondrichthyan spines from the Famennian (Upper Devonian) of Russia. Acta Geologica Polonica, 70 (3), 339–362. Warszawa.
Lebedev O.A., Linkevich V.V., Ivanov A.O., Linkevich, Valeriy V., Lebedev, Oleg A., Ivanov, Alexander O.   +5 more
core   +1 more source

Comparison among related Middle-Upper Devonian lycopsids from China.

, 2018
Comparison among related Middle-Upper Devonian lycopsids from China.
Li Cheng-Sen (5504234), Borja Cascales-Minana (5504240), Cyrille Prestianni (5504237), Philippe Steemans (2842331), Philippe Gerrienne (3714262)   +4 more
core   +1 more source

Sporoderm ultrastructure of some Devonian and Permian representatives of Biharisporites and their botanical affinity

, 2022
The megaspore genus Biharisporites has a very wide stratigraphic range, being recorded from the Devonian to the Cretaceous. However, in situ these megaspores are known only from the Middle–Upper Devonian, from archaeopteridalean sporangia.
Arun Joshi (12259800), Alina Kanarkina (12259791), Olga Orlova (12259797), Natalia Zavialova (12259794)   +3 more
core   +1 more source

New record of a Middle Devonian brachiopod fauna from the Northern Arabian Plate, Zap Anticline, Cukurca-Hakkari, Southeastern Turkey [PDF]

, 2012
International audienceBrachiopods recently collected from the Zap River Valley area (SE Turkey) allow to establish a Middle Devonian (upper Givetian) age for the upper middle part of the Yiginli Formation which was until now considered as Famennian on ...
Hosgör, Izzet, Gourvennec, Rémy
core   +1 more source

Rediscovery of the Type Specimens of the Sarcopterygian Fishes Onychodus sigmoides and Onychodus hopkinsi from the Devonian of Ohio, USA

Diversity
John Strong Newberry described three species of the lobe-fin fish Onychodus (Osteichthyes, Sarcopterygii, Onychodontida) based on parasymphysial teeth, or tusks.
Loren E. Babcock
doaj   +1 more source

The Timan-Pechora basin. The structure and main stages of development

Georesursy, 2017
The lack of complete inheritance in the history of the Timan-Pechora basin development has led to a discrepancy between the basement surface plans and the individual sub-levels and their complexes. In the lower part of the section, the structures inherit
A.V. Stoupakova
doaj   +1 more source

The geochemical characteristics, distribution of marine source rocks and gas exploration potential in the northwestern Sichuan Basin, China

Journal of Natural Gas Geoscience, 2021
In recent years, the northwestern part of the Sichuan Basin has become a popular location for natural gas exploration. However, up to this point, the geochemical characteristics and distribution of marine source rocks in this area have not been ...
Guoyi Hu, Fei He, Jingkui Mi, Yilin Yuan, Jinhao Guo   +4 more
doaj   +1 more source