Marine Late Triassic-Jurassic carbon-isotope excursion and biological extinction records: New evidence from the Qiangtang Basin, eastern Tethys
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DOI: 10.1016/j.gloplacha.2019.103093
Abstract: Abstract The mass extinction event of the Late Triassic is relatively poorly-known among the five major extinction events in the Phanerozoic. Moreover, the typical marine Triassic-Jurassic (T-J) records are absent in regions other than the… read more here.
Keywords: carbon; marine; extinction; carbon isotope ... See more keywords
Sedimentology and carbon isotope stratigraphy of the Rhaetian Hochalm section (Late Triassic, Austria)
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DOI: 10.1016/j.gloplacha.2020.103210
Abstract: Abstract The Rhaetian (~201–209 Ma, the latest stage of the Triassic) is an important time-interval for the study of environmental changes preceding the End-Triassic Mass extinction. A detailed sedimentological and chemostratigraphic study was conducted in the… read more here.
Keywords: sedimentology; carbon isotope; late triassic; stratigraphy ... See more keywords
Incremental emplacement and syn-tectonic deformation of Late Triassic granites in the Qinling Orogen: Structural and geochronological constraints
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DOI: 10.1016/j.gr.2019.04.001
Abstract: Abstract Granitoids are important components of major orogenic belts, and provide important information about the regional geodynamic evolution. The emplacement mechanism of granite plutons and its relationship with regional tectonics has long been discussed, although… read more here.
Keywords: qinling orogen; syn tectonic; pluton; late triassic ... See more keywords
Petrogenesis of two types of Late Triassic granite from the Guandimiao Complex, southern Hunan Province, China
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DOI: 10.1016/j.lithos.2017.02.021
Abstract: Abstract Two types of Late Triassic granite are found in the Guandimiao Complex of the South China Block (SCB). Here, we present new LA–ICP-MS zircon U–Pb ages as well as geochemical and Sr–Nd–Pb–Hf isotopic data… read more here.
Keywords: granite; guandimiao complex; types late; late triassic ... See more keywords
Zircon inheritance from long-lived sources of Late Triassic post-orogenic plutons, High Andes, Central Chile (~30°S): Magmatic feedbacks and petrogenetic implications
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DOI: 10.1016/j.lithos.2020.105662
Abstract: Abstract A comprehensive understanding of the magmatic system evolution and petrogenetic environment is crucial for the correct interpretation of magmatic zircon age spectra. In the Central Andes, a protracted Late Paleozoic period of collisional to… read more here.
Keywords: zircon; inheritance; post orogenic; late triassic ... See more keywords
Late Triassic E-MORB-like basalts associated with porphyry Cu-deposits in the southern Yidun continental arc, eastern Tibet: Evidence of slab-tear during subduction?
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DOI: 10.1016/j.oregeorev.2016.12.006
Abstract: Abstract It is generally believed that andesite–dacite–rhyolite suites and contemporary porphyry Cu deposits are related to subduction in active continental margin settings. However, it is still unclear which tectonic events result in the generation of… read more here.
Keywords: subduction; late triassic; associated porphyry; porphyry deposits ... See more keywords
The last phase of conodont evolution during the Late Triassic: Integrating biostratigraphic and phylogenetic approaches
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DOI: 10.1016/j.palaeo.2019.03.045
Abstract: Abstract For the Upper Triassic, conodonts are the primary tools utilized in biostratigraphic investigations. For an effective biostratigraphic zonation, the species should be constrained by clear phylogenetic relationships, in which the stratigraphic ranges and taxonomy… read more here.
Keywords: phase conodont; evolution late; late triassic; conodont evolution ... See more keywords
The evolution of respiratory systems in Theropoda and Paracrocodylomorpha, the end-Triassic extinction, and the role of Late Triassic atmospheric O2 and CO2
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DOI: 10.1016/j.palaeo.2020.109638
Abstract: Abstract During the Late Triassic Period (235–201.3 Ma), Paracrocodylomorpha and Theropoda switched predatory roles, with the former filling the subsidiary predator niche and the latter filling the top predator niche at the end-Triassic extinction. Reasons for… read more here.
Keywords: theropoda paracrocodylomorpha; triassic extinction; atmospheric co2; late triassic ... See more keywords
Late Triassic porphyries in the Zhongdian arc, eastern Tibet: origin and implications for Cu mineralization
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DOI: 10.1017/s0016756819000700
Abstract: Abstract Whole-rock and Sr–Nd–Pb isotopic composition data, zircon Hf isotopic data and zircon U–Pb ages were obtained for the Late Triassic porphyries in the Zhongdian arc, eastern Tibet. These porphyries are intermediate and metaluminous and… read more here.
Keywords: eastern tibet; triassic porphyries; late triassic; arc eastern ... See more keywords
Correspondence: Challenges with dating weathering products to unravel ancient landscapes
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DOI: 10.1038/s41467-017-01457-9
Abstract: K-Ar dating of illite (clay) in weathered bedrock (saprolite) is an exciting but yet incompletely understood new application of the K-Ar dating method that can potentially provide valuable information about the evolution of landforms and… read more here.
Keywords: weathering products; surface; fission track; late triassic ... See more keywords
Astronomical age constraints and extinction mechanisms of the Late Triassic Carnian crisis
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DOI: 10.1038/s41598-017-02817-7
Abstract: The geological record contains evidence for numerous pronounced perturbations in the global carbon cycle, some of which are associated with mass extinction. In the Carnian (Late Triassic), evidence from sedimentology and fossil pollen points to… read more here.
Keywords: extinction mechanisms; evidence; constraints extinction; late triassic ... See more keywords