Results 51 to 60 of about 115,566 (343)

On Devonian spores [PDF]

American Journal of Science, 1885
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openaire   +2 more sources

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

Геодинамика 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, Aigul M. Il'yasova, Tatiana A. Yasnygina, Nikolay N. Fefelov   +3 more
doaj   +1 more source

The Devonian of southwestern Ontario

, 1912
Clinton R. Stauffer
openalex   +3 more sources

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

, 2014
This paper records the first example of a demosponge spicule framework in a single specimen of a Devonian stromatoporoid from the Frasnian of southern Belgium.
Alvarez, Boulvain, Boulvain, Böhm, Chatterton, Da Silva, Da Silva, Debrenne, Erpenbeck, Erpenbeck, Erpenbeck, Gazave, Goldfuss, Gray, Haase-Schramm, Hartman, Hartman, Hooper, Hudson, Jackson, Jackson, Jochum, Kazmierczak, Kazmierczak, Kazmierczak, Kazmierczak, Kershaw, Lister, Mistiaen, Morrow, Reitner, Reitner, Reitner, Reitner, Reitner, Silva, Stearn, Stearn, Stearn, Stock, Uriz, Vacelet, Vasconcelos, Vortisch, Wood, Wood, Wood, Wood, Wood, Wörheide, Wörheide, Özdikmen   +51 more
core   +1 more source

The Spirifers of the Upper Devonian [PDF]

Science, 1884
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openaire   +3 more sources

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

Devonian climate, sea level and evolutionary events: an introduction

Special Publications, 2016
The face of Planet Earth has changed significantly through geological time. Dynamic processes active today, such as plate tectonics and climate change, have shaped the Earth’s surface and impacted biodiversity patterns from the beginning.
R. T. Becker, P. Königshof, C. Brett
semanticscholar   +1 more source

The first report of South American edrioasteroids and the paleoecology and ontogeny of rhenopyrgid echinoderms [PDF]

, 2013
A new species of rhenopyrgid edrioasteroid Rhenopyrgus piojoensis sp. nov. is described form the Silurian (Lower Lud− low) Los Espejos Formation in the Precordillera of Argentina.
Heredia, Susana Emma, Mestre García, Ana Isabel, Rodríguez, Cecilia María, Sumrall, Colin D.   +3 more
core   +1 more source

Devonian in Turkey — a review

Geologica Carpathica, 2010
Devonian in Turkey — a reviewThe Devonian Period is represented in Turkey by almost complete non-metamorphic sections of more than 1000 meters, which exhibit varying lithofacial associations. They are parts of thick Paleozoic sedimentary successions in the Pontides, Taurides and Arabian Plate.
Yalcin, M. Namik, Yilmaz, Isak
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Early Cenozoic Eurekan strain partitioning and decoupling in central Spitsbergen, Svalbard [PDF]

Solid Earth, 2021
The present study of field, petrological, exploration well, and seismic data describes backward-dipping duplexes comprised of phyllitic coal and bedding-parallel décollements and thrusts localized along lithological transitions in tectonically thickened ...
J.-B. P. Koehl, J.-B. P. Koehl, J.-B. P. Koehl, J.-B. P. Koehl   +3 more
doaj   +1 more source