Results 31 to 40 of about 399,927 (153)

Timing and Provenance of Volcanic Fluxes Around the Permian‐Triassic Boundary Mass Extinction in South China: U‐Pb Zircon Geochronology, Volcanic Ash Geochemistry and Mercury Isotopes

Geochemistry, Geophysics, Geosystems, 2023
Anomalous mercury (Hg) contents recorded near the Permian‐Triassic boundary (PTB) are often linked to Siberian Traps Large Igneous Province (STLIP) volcanism and the Permian‐Triassic boundary mass extinction (PTBME).
Oluwaseun Edward, André Navin Paul, Hugo Bucher, Christian Vérard, Thierry Adatte, Jeroen E. Sonke, Urs Schaltegger, Torsten Vennemann   +7 more
doaj   +1 more source

Hg Isotopes and Enhanced Hg Concentration in the Meishan and Guryul Ravine Successions: Proxies for Volcanism Across the Permian-Triassic Boundary

Frontiers in Earth Science, 2021
High-resolution organic carbon isotope (δ13C), Hg concentration and Hg isotopes curves are presented for the Permian-Triassic boundary (PTB) sections at Guryul Ravine (India) and Meishan D (China).
Alcides Nóbrega Sial, Jiubin Chen, Christoph Korte, Manoj Kumar Pandit, Jorge E. Spangenberg, Juan Carlos Silva-Tamayo, Luiz Drude de Lacerda, Valderez Pinto Ferreira, José Antônio Barbosa, Claudio Gaucher, Natan Silva Pereira, Paulo Ricardo Riedel   +11 more
doaj   +1 more source

Influence of the Frasnian - Famennian extinction event on the reef development within the Pechora syneclise

Известия высших учебных заведений: Геология и разведка, 2017
In a complex and diverse reef community composition the biogenic nature of the deposition of the carbonate material is the most evident. Biotic crises, after which a significant evolutionary update of the organic world took place, also affected ...
L. M. Zhuravleva
doaj   +1 more source

Major biological events and fossil energy formation: On the development of energy science under the earth system framework

Petroleum Exploration and Development, 2021
In geological history, one major life explosion and five mass extinction events occurred. These major biological and environmental events affected the evolution of the Earth ecosystem and controlled the formation of organic-rich strata.
Songqi PAN, Caineng ZOU, Yong LI, Zhenhua JING, Entao LIU, Ming YUAN, Guosheng ZHANG, Zhi YANG, Songtao WU, Zhen QIU, Hanlin LIU   +10 more
doaj   +1 more source

Predicting dust extinction from the stellar mass of a galaxy

, 2010
We investigate how the typical dust extinction of H-alpha luminosity from a star-forming galaxy depends upon star formation rate (SFR), metallicity and stellar mass independently, using a sample of ~90,000 galaxies from Data Release 7 of the Sloan ...
Abazajian, Asari, Asplund, Baldwin, Becker, Bell, Berta, Best, Boissier, Boroson, Brinchmann, Brocklehurst, Calzetti, Cowie, Daddi, Ellison, Erb, Garn, Garn, Garn, Heckman, Hopkins, Hopkins, Kauffmann, Kauffmann, Kennicutt, Kewley, Kewley, Kroupa, Longhetti, Maiolino, Mannucci, Osterbrock, Pannella, Pettini, Philip N. Best, Salim, Stasińska, Sullivan, Timothy Garn, Tremonti, Wang   +41 more
core   +1 more source

Diversification events and the effects of mass extinctions on Crocodyliformes evolutionary history [PDF]

Royal Society Open Science, 2015
The rich fossil record of Crocodyliformes shows a much greater diversity in the past than today in terms of morphological disparity and occupation of niches.
Mario Bronzati, Felipe C. Montefeltro, Max C. Langer   +2 more
doaj   +1 more source

An armoured marine reptile from the Early Triassic of South China and its phylogenetic and evolutionary implications

eLife, 2023
Sauropterygia was a taxonomically and ecomorphologically diverse clade of Mesozoic marine reptiles spanning the Early Triassic to the Late Cretaceous.
Andrzej S Wolniewicz, Yuefeng Shen, Qiang Li, Yuanyuan Sun, Yu Qiao, Yajie Chen, Yi-Wei Hu, Jun Liu   +7 more
doaj   +1 more source

Quo Vadis, Paleontology?

Philosophy, Theory, and Practice in Biology
Studies of the history of life provide an interesting case study of how the questions scientists can ask, and from which they expect reliable answers, change over time.
Douglas Erwin
doaj   +2 more sources

Linking Siberian Traps LIP Emplacement and End-Permian Mass Extinction: Evidence from Magnetic Stratigraphy of the Maymecha-Kotuy Volcanic Section

Geosciences, 2020
The Siberian Traps Large Igneous Provinces (LIP) emplacement is considered as one of possible triggers for the end-Permian global biotic crisis. However, relative timing of the onset of extinction and the main phase of the magmatic activity are not yet ...
Anton V. Latyshev, Anna M. Fetisova, Roman V. Veselovskiy   +2 more
doaj   +1 more source

The Late Capitanian Mass Extinction of Terrestrial Vertebrates in the Karoo Basin of South Africa

Frontiers in Earth Science, 2021
The Beaufort Group of the main Karoo Basin of South Africa records two major extinction events of terrestrial vertebrates in the late Palaeozoic.
Michael O. Day, Michael O. Day, Bruce S. Rubidge   +2 more
doaj   +1 more source