Results 71 to 80 of about 6,828,747 (385)

Accretionary Tectonics of the North American Cordillera [PDF]

, 1983
Continental geology stands on the threshold of a change that is likely to be as fundamental as plate-tectonic theory was for marine geology. Ongoing seismic-reflection investigations into the deep crustal structure of North America are verifying that ...
Saleeby, Jason B.
core   +2 more sources

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

The Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt, Orlando Nelson Grillo, Christophe Hendrickx, Maximilian Kellermann, Max Cardoso Langer   +4 more
wiley   +1 more source

Palaeomagnetic and geochronologic results from lower cretaceous volcanics of the western Qiangtang terrane and implications for the Lhasa-Qiangtang collision

Scientific Reports
The Lhasa-Qiangtang collision is key to understanding the formation and evolution of the Tibetan Plateau; however, the precise timing of this event remains hotly debated.
Yabo Zhang, Weiwei Bian, Jiahui Ma, Suo Wang, Xianwei Jiao, Jiacheng Liang, Siqi Wang, Xiaolin Li, Jikai Ding, Hanqing Zhao, Haiyan Li, Huaichun Wu, Yiming Ma, Tianshui Yang   +13 more
doaj   +1 more source

Neotethyan Ankara Melange, central Turkey: Formation by accretion of seamounts and supra-subduction zone ophiolites in an oceanic fore-arc setting

Journal of Asian Earth Sciences: X, 2023
The Neotethyan Ankara Melange is a global reference for oceanic accretionary processes preserved in a collisional orogen. Here we show, based on eight representative outcrops around Ankara, that the melange encompasses stratigraphically coherent volcanic-
Alastair H.F. Robertson, Osman Parlak, Kemal Taslı, Paulian Dumitrica, Timur Ustaömer   +4 more
doaj   +1 more source

Antarctic climate, Southern Ocean circulation patterns, and deep water formation during the Eocene [PDF]

, 2017
We assess early-to-middle Eocene seawater neodymium (Nd) isotope records from seven Southern Ocean deep-sea drill sites to evaluate the role of Southern Ocean circulation in long-term Cenozoic climate change.
Anagnostou, Arsouze, Askin, Barron, Bice, Bijl, Bijl, Bijl, Bohaty, Bohaty, Borrelli, Boyle, Bralower, Brass, Browning, Burton, Cande, Chavagnac, Claire E. Huck, Contreras, Cook, Corfield, Coxall, Cramer, Creech, Danelian, De Baar, DeConto, Douglas, Dunkley Jones, Ehrmann, Elderfield, Flierdt, Flierdt, Francis, Freslon, Galeotti, German, Gingele, Goldner, Goldstein, Hague, Hinsbergen, Hohbein, Hollis, Hollis, Hollis, Houben, Huber, Huber, Huber, Huber, Huber, Huck, Jacobsen, Jeandel, Jovane, Katz, Kennett, Kennett, Kent, Kent, Kominz, Lawver, Le Houedec, Lear, Ling, Ling, Littler, Liu, Lunt, MacLeod, Martin, Martin, Martin, Martin, McIntosh, Miller, Moiroud, Norris, O'Nions, Orsi, Ortiz, Otto-Bliesner, Pagani, Pagani, Pak, Pankhurst, Passchier, Passchier, Peirce, Pekar, Pierce, Pierce, Pin, Poulsen, Pross, Pucéat, Rickli, Roberts, Roberts, Robinson, Samantha J. Hammond, Scher, Scher, Scher, Scher, Scher, Scher, Scher, Sexton, Sexton, Shaw, Sijp, Sijp, Soudry, Steven M. Bohaty, Stichel, Stille, Tachikawa, Tanaka, Tauxe, Taylor, Thomas, Thomas, Thomas, Thomas, Tina van de Flierdt, Truswell, Uenzelmann-Neben, Vandenberghe, Via, Weis, Wright, Zachos, Zachos, Zachos, Zachos   +137 more
core   +1 more source

Late Jurassic Early Cretaceous

The sedimentary and structural development in the Late Jurassic-Early Cretaceous period in the Netherlands is largely governed by the Late Cimmerian rift phase and the subsequent post-rift. The rifting affected the Dutch Central Graben in the northern offshore first.
Verreussel, R.M.C.H., Bouroullec, R., Houben, A.J.P., Munsterman, D.K.   +3 more
openaire   +2 more sources

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

A Global Plate Model Including Lithospheric Deformation Along Major Rifts and Orogens Since the Triassic [PDF]

, 2019
Global deep‐time plate motion models have traditionally followed a classical rigid plate approach, even though plate deformation is known to be significant.
Bower, Dan J., Breton, Eline Le, Cannon, John, Heine, Christian, Liu, Shaofeng [u.v.m.], Müller, R. Dietmar, Seton, Maria, Tetley, Michael G., Williams, Simon E., Zahirovic, Sabin   +9 more
core   +1 more source

Changes to Cretaceous surface fire behaviour influenced the spread of the early angiosperms

New Phytologist, 2016
Angiosperms evolved and diversified during the Cretaceous period. Early angiosperms were short‐stature weedy plants thought to have increased fire frequency and mortality in gymnosperm forest, aiding their own expansion.
C. Belcher, V. Hudspith
semanticscholar   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

The Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano, Matheus P. S. Rocha, Francisco P. Lima‐Filho, Aline M. Ghilardi   +3 more
wiley   +1 more source