Results 41 to 50 of about 32,377 (248)

Palaeozoic Palaeomagnetism of South-Eastern Australia [PDF]

, 2004
The drift history of Gondwana following the break-up of Rodinia (or perhaps Pannotia) to the amalgamation into Pangaea has great implications in many disciplines in Earth sciences, but remains largely unknown.
Vérard, Christian
core   +1 more source

Cone-in-cone structure: New data

Литосфера, 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

Indigenous demosponge spicules in a Late Devonian stromatoporoid basal skeleton from the Frasnian of Belgium [PDF]

, 2014
peer ...
Kershaw, S, Reitner, J., Reynolds, A., Hubert, M, Reynolds, Alan, Mistiaen, Bruno, Boulvain, F., Benoit L. M. Hubert, Boulvain, F, Stephen Kershaw, Hubert, B.L.M., Reynolds, A, Alan Reynolds, Da Silva, A-C, Mistiaen, B, Boulvain, Frédéric, Bruno Mistiaen, Hubert, Benoit L. M., Frédéric Boulvain, Kershaw, Stephen, Anne-Christine Da Silva, Da Silva, A.-C., Reitner, J, Joachim Reitner, Da Silva, Anne-Christine, Hubert, BLM, Reitner, Joachim   +26 more
core   +1 more source

First insights into the Devonian–Carboniferous boundary conodonts from the depression deposits of the Kama-Kinel Trough System, East European Platform (Volga-Ural petroleum province, Sarailinskaya Depression)

Учёные записки Казанского университета: Серия Естественные науки
Conodonts from the Devonian–Carboniferous boundary deposits in two wells within the Sarailinskaya Depression of the Kama-Kinel Trough System were studied.
G. M. Sungatullina, V. V. Silantiev, D. N. Miftakhutdinova, A. F. Safarov, M. F. Validov, B. G. Ganiev, K. D. Shumatbaev, R. M. Khabipov   +7 more
doaj   +1 more source

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

The 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, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

A Classification of Protective Structures in Fossil Bryozoans

Учёные записки Казанского университета: Серия Естественные науки
The protective structures of bryozoans representing four orders—Trepostomata, Cryptostomata, Fenestrata, and Cheilostomata—were analyzed and classified for the first time based on functional criteria.
Z. A. Tolokonnikova, P. V. Fedorov, D. M. Mikhnenko   +2 more
doaj   +1 more source

Devonian Plants

Science, 1922
n ...
openaire   +2 more sources

Tooth histotype and enameloid microstructure of Priohybodus arambourgi d'Erasmo, 1960 (Elasmobranchii: Hybodontiformes) from the Late Jurassic of northeastern Brazil

The Anatomical Record, EarlyView.
Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva, Valéria Gallo, Estevan Eltink   +2 more
wiley   +1 more source

Formation Conditions and Hydrocarbons Generation Potential of Oil Source Rocks of South Tatar Arch and Surrounding Areas

Georesursy
The work studied the lithological and geochemical characteristics of oil and gas source rocks of the central part of the Volga-Ural oil and gas bearing province.
A. S. Khayuzkin, E. V. Morozova, V. P. Morozov, E. A. Korolev, D. M. Favarisova, F. M. Gazeeva, N. A. Nazimov   +6 more
doaj   +1 more source

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

Deep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski, Alessandro Verdecchia, Oliver Heidbach, Rebecca M. Harrington, David Healy   +4 more
wiley   +1 more source