Results 31 to 40 of about 58,521 (270)
Timing and pacing of the Late Devonian mass extinction event regulated by eccentricity and obliquity
Nature Communications, 2017 The Late Devonian envelops one of Earth’s big five mass extinction events at the Frasnian–Famennian boundary (374 Ma). Environmental change across the extinction severely affected Devonian reef-builders, besides many other forms of marine life.
D. De Vleeschouwer +7 more
semanticscholar +1 more source
The Early Devonian (Emsian) acrotretid microbrachiopod Opsiconidion minor Popov, 1981, from the Alaska/Yukon Territory border and Novaya Zemlya [PDF]
Estonian Journal of Earth Sciences, 2020 New records of the poorly known acrotretid (Biernatidae) microbrachiopod Opsiconidion minor Popov are described from middle Emsian strata of the Ogilvie Formation in east-central Alaska and the adjacent Yukon Territory, Canada, and compared with new ...
Lars E. Holmer +3 more
doaj +1 more source
The Coral-Rich Devonian Limestones of the English Riviera UNESCO Global Geopark [PDF]
Geoconservation Research, 2021 The coral-rich limestones of the English Riviera UNESCO Global Geopark were an important component of the original definition of the Devonian System, introduced by Sedgwick and Murchison in 1840.
Malcolm Hart, Christopher Smart
doaj +1 more source
Upper Devonian (Famennian) conodonts from radiolarian cherts, Loei Terrane, Loei Province, Northeast Thailand [PDF]
Research & Knowledge, 2015 Conodonts from radiolarian cherts in the Loei Terrane of Loei Province, Northeast Thailand, include Palmatolepis triangularis, P. minuta minuta, P. minuta wolskae and polygnathids and indicate a Famennian crepida Zone age.
Clive Burrett +2 more
doaj +1 more source
The role of conodonts in the global stratigraphic correlation on example of southern Siberia (Russia) and eastern Serbia [PDF]
Geološki Anali Balkanskoga Poluostrva, 2015 Conodonts are very precise tools for global stratigraphic correlation of Devonian deposits. They can be correlated at the level of standard conodont zones even for basins having very different geological structure.
Rodygin Sergei A.
doaj +1 more source
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 +3 more
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
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
openaire +3 more sources