Results 91 to 100 of about 72,467 (243)
Physical and environmental drivers of Paleozoic tetrapod dispersal across Pangaea
Nature Communications, 2018 The late Paleozoic was a time of major transition for tetrapods. Here, Brocklehurst and colleagues analyse the biogeography of Paleozoic tetrapods and find shifts in dispersal and vicariance associated with Carboniferous mountain formation and end ...
Neil Brocklehurst +3 more
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Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract We present an annual resolution oxygen isotope anomaly (Δδ18 ${\Delta }{\delta }^{18}$Oc) record, derived from eight teak (Tectona grandis L.f.) tree ring‐dated δ18 ${\delta }^{18}$Oc series from Muna, Southeast Sulawesi, Indonesia (5.3° ${}^{\circ}$S, 123° ${}^{\circ}$E).
M. N. Evans +7 more
wiley +1 more source
Petrography of El Baúl massifgranitoids, Cojedes state, Venezuela
Revista Técnica de la Facultad de Ingeniería, 2015 The granites El Mogote, Mata Oscura and Piñero outcrop in the El Baúl massif, next to metasedimentary, volcanic and   sub volcanic rocks, to the south of Cojedes state, Venezuela.
Patxo Viscarret, Franco Urbani
doaj
PLoS ONE, 2011 BackgroundThe relationships of cartilaginous fishes are discussed in the light of well preserved three-dimensional Paleozoic specimens. There is no consensus to date on the interrelationship of Paleozoic chondrichthyans, although three main phylogenetic ...
Alan Pradel +3 more
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PALEOZOIC LEPOSPONDYL AMPHIBIANS [PDF]
American Zoologist, 1965 The lepospondyls are urodele-like amphibians of the Paleozoic Era, some of which have been considered ancestral or closely related to reptiles or modern amphibians. Their origin is enigmatic, and the earliest occurrences reveal a long-established division into three contrasting orders: the serpentine aistopods, the newt-like nectrideans and the ...
openaire +1 more source
Evaluation of existing knowledge of the tectonic history and lithospheric structure of South America [PDF]
While data is available on the lithospheric and crustal structure of the Andes region of South America, there is limited knowledge of these aspects of the eastern portion of the continent.
Keller, G. R., Lidiak, E. G.
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西南日本の熱変成超苦鉄質岩体中のかんらん石と輝石の組成変化に関する覚書 [PDF]
, 2010 This short article presents some diagrams showing the compositional variations of primary and metamorphic olivine, orthopyroxene and clinopyroxene in peridotites and serpentinites from thermally metamorphosed ultramafic complexes in SW Japan. In contrast
Nozaka, Toshio
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Differential Craton Destruction Controlled by Fossil Structures in the Central North China Craton
Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract Craton evolution plays a fundamental role in stabilizing the continental lithosphere and the long‐term evolution of Earth's surface environment. The Shanxi Rift Zone (SRZ) within the North China Craton marks an ongoing craton destruction. Detailed lithospheric structure is essential to explain craton destruction.
Cong Ji +4 more
wiley +1 more source
Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract Previous studies have primarily focused on evaluating the forecast skill of extreme cold events in central and eastern China as a whole, with limited attention to their different stages. This study identifies a distinct “predictability barrier” phenomenon in the ensemble forecasts, characterized by rapid growth of ensemble mean forecast error ...
Zhe Han +5 more
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Journal of Natural Gas GeoscienceThe geochemical characteristics of the Paleozoic natural gas in the southern part of the Ordos Basin shows significant differences from those in the northern part. These differences lead to the increase in dryness coefficient and a heavier carbon isotope
Tao Zhang +8 more
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