Results 11 to 20 of about 1,663 (126)

Fish Assemblage from the Givetian (Middle Devonian) of the Kuznetsk Basin, Russia [PDF]

Учёные записки Казанского университета: Серия Естественные науки
A diverse fish assemblage was reported from the Mazalovskiy Kitat and Alchedat beds (Givetian, Middle Devonian) of the Kuznetsk Basin (Siberia, Russia).
A. O. Ivanov, N. G. Izokh
doaj   +2 more sources

GIVETIAN–FRASNIAN BOUNDARY CONODONTS FROM KERMAN PROVINCE, CENTRAL IRAN

Rivista Italiana di Paleontologia e Stratigrafia, 2013
The Middle - Late Devonian boundary is investigated based on twenty-two conodont species and subspecies from three sections in the north and west of Kerman, southeastern central Iran.
HOSSEIN GHOLAMALIAN, VACHIK HAIRAPETIAN, NAHID BARFEHEI, SOHEYLA MANGELIAN, PARVANEH FARIDI   +4 more
doaj   +2 more sources

Rise and fall of the phacopids: the morphological history of a successful trilobite family

Palaeontology, Volume 66, Issue 5, September/October 2023., 2023
Abstract Phacopidae were a successful family of the Silurian–Devonian period. Although their diversity trends are well identified, their shape evolution is unknown; their morphology often considered to be conservative. We have quantified these morphologies using geometric morphometrics (landmarks) and investigated their evolution using morphological ...
Valentin Bault, Catherine Crônier, Claude Monnet, Diego Balseiro, Fernanda Serra, Beatriz Waisfeld, Arnaud Bignon, Juan José Rustán   +7 more
wiley   +1 more source

Bioclastic bottom‐current deposits of a Devonian contourite terrace: Facies variability and depositional architecture (Tafilalt Platform, Morocco)

Sedimentology, Volume 70, Issue 5, Page 1413-1471, August 2023., 2023
ABSTRACT The study examines bioclastic carbonate contourites that arise from the broad spectrum of bottom‐current related sedimentary processes ranging from deposition to erosion. The result of the intermittent accumulation of sediment are thin and condensed successions with abundant hiatuses.
Heiko Hüneke, M. Arwed Gibb, Oliver Mayer, Jorit F. Kniest, Paul Mehlhorn, Laura M. Gibb, Z. Sarah Aboussalam, R. Thomas Becker, Ahmed El Hassani, Lahssen Baidder   +9 more
wiley   +1 more source

Crustal Imaging of Portugal Mainland Using Magnetotelluric Data

Earth and Space Science, Volume 10, Issue 7, July 2023., 2023
Abstract The comprehensive mapping of resistivities in depth and its interpretation is of great importance to unravel the electrical properties of deep‐seated rocks, providing significant insights into the structure of the crust. The first 3D resistivity model for Portugal mainland is here reported using data from 31 broadband MT soundings spaced 50 ...
P. Baltazar‐Soares, F. J. Martínez‐Moreno, J. Alves Ribeiro, F. A. Monteiro Santos, P. Ribeiro, M. A. Pais, A. Mateus, J. Pous   +7 more
wiley   +1 more source

Phanerozoic Tectonic and Sedimentation History of the Arctic: Constraints From Deep‐Time Low‐Temperature Thermochronology Data of Ellesmere Island and Northwest Greenland

Tectonics, Volume 42, Issue 7, July 2023., 2023
Abstract Rocks exposed along both sides of the Smith Sound in Ellesmere Island and NW Greenland record the tectono‐sedimentary evolution of the whole Phanerozoic, including two periods of mountain building—the Palaeozoic Ellesmerian Orogeny and the Palaeogene Eurekan Orogeny—and the formation of two major sedimentary basins, the Franklinian and the ...
Cornelia Spiegel, Mohammad S. Sohi, Wolfgang Reiter, Katrin Meier, Barbara Ventura, Frank Lisker, Solveig Estrada, Karsten Piepjohn, Kai Berglar, Nikola Koglin, Andreas Klügel, Patrick Monien, Axel Gerdes, Ulf Linnemann   +13 more
wiley   +1 more source

Upper Eifelian and Givetian (Middle Devonian) conodont sequence at Renanué (Aragonian Pyrenees, Spain): a relevant section for Givetian Chronostratigraphy

, 2021
The study of 111 conodont samples has provided the first detailed biostratigraphical subdivision of the Renanué section ranging from the upper Eifelian ensensis Zone into the uppermost Givetian norrisi Zone.
Valenzuela Ríos, José Ignacio, Liao, Jau-Chyn, José I. Valenzuela-Ríos, Jau-Chyn Liao   +3 more
core   +1 more source

Inside a sediment‐stressed Middle Devonian carpet reef: Cave exposes details of three‐dimensional facies architecture and palaeoecology

Sedimentology, Volume 70, Issue 4, Page 1251-1280, June 2023., 2023
ABSTRACT During the Middle Devonian, reef growth reached an acme, and corals and stromatoporoids colonized depositional niches commonly considered unfavourable for reefal organisms. This paper documents the detailed facies architecture and palaeoecology of a stratigraphically thin (ca 12 m, ‘carpet reef’), lower Givetian reefal body exposed along the ...
Tanja Unger, Matthieu Saillol, Markus Aretz, Stephen Lokier, Mathias Mueller, Volker Karius, Adrian Immenhauser   +6 more
wiley   +1 more source

Givetian antiarch assemblages; list updated from Sallan and Coates, 2010 [96].

, 2023
Givetian antiarch assemblages; list updated from Sallan and Coates, 2010 [96].
Martin Qvarnström (14670867), Grzegorz Niedźwiedzki (675868), Øyvind Hammer (514194), Iwan Stössel (14670870), Per E. Ahlberg (8652222), Vincent Dupret (382346), Johan A. Long (14670864), Nélia Castro (14670858), Kenneth T. Higgs (14670861), Hannah M. Byrne (7876541)   +9 more
core   +1 more source

Petrographic and geochemical constraints on the formation of gravity‐defying speleothems

The Depositional Record, Volume 9, Issue 3, Page 413-436, May 2023., 2023
This paper documents a state‐of‐art petrologic and geochemical study of intriguing cave carbonates known as helictites. The properties of aragonitic and calcitic helictites are documented and their origin is discussed. Abstract Cave carbonates, seemingly growing in defiance of gravity, have attracted the community's interest for more than a century ...
Adrian Immenhauser, Rene Hoffmann, Sylvia Riechelmann, Mathias Mueller, Dennis Scholz, Stefan Voigt, Stefan Niggemann, Dieter Buhl, Maximilian Dornseif, Alexander Platte   +9 more
wiley   +1 more source