Characteristics of the Late Devonian Tsagaan Suvarga Cu–Mo deposit, Southern Mongolia
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DOI: 10.1007/s00126-018-0812-6
Abstract: The Late Devonian Tsagaan Suvarga deposit (255 Mt at 0.55% Cu, 0.02% Mo) is located on the NW margin of the Tsagaan Suvarga Complex (TSC), which extends ENE over 15 × 10 km and comprises mainly medium-grained equigranular hornblende-biotite… read more here.
Keywords: tsagaan; tsagaan suvarga; quartz; late devonian ... See more keywords
Hydrothermally induced 34S enrichment in pyrite as an alternative explanation of the Late-Devonian sulfur isotope excursion in South China
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DOI: 10.1016/j.gca.2020.05.017
Abstract: Abstract Several Late Devonian sedimentary successions host pyrite with highly positive sulfur isotope values (δ34Spyrite). These anomalous values have been linked to marine anoxia, low sulfate concentrations in seawater, or aerobic re-oxidation of dissolved sulfide… read more here.
Keywords: south china; sulfate; late devonian; sulfur ... See more keywords
Paleogeography and paleoenvironments of the Late Devonian Kellwasser event: A review of its sedimentological and geochemical expression
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DOI: 10.1016/j.gloplacha.2019.102984
Abstract: Abstract The Late Devonian (383-359 Ma) was a time of prolonged climate instability with catastrophic perturbation of global marine ecosystems at the Frasnian-Famennian (F-F) and the Devonian-Carboniferous (D-C) boundaries. The causes and mechanisms of anoxia… read more here.
Keywords: expression; kellwasser event; paleogeography; event ... See more keywords
A volcanic scenario for the Frasnian–Famennian major biotic crisis and other Late Devonian global changes: More answers than questions?
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DOI: 10.1016/j.gloplacha.2020.103174
Abstract: Abstract Although the prime causation of the Late Devonian Frasnian–Famennian (F–F) mass extinction remains conjectural, such destructive factors as the spread of anoxia and rapid upheavals in the runaway greenhouse climate are generally accepted in… read more here.
Keywords: frasnian famennian; scenario; late devonian; global changes ... See more keywords
Geochronology and geochemistry of Late Devonian-Carboniferous igneous rocks in the Songnen-Zhangguangcai Range Massif, NE China: Constraints on the late Paleozoic tectonic evolution of the eastern Central Asian Orogenic Belt
Sign Up to like & getrecommendations! Published in 2018 at "Gondwana Research"
DOI: 10.1016/j.gr.2018.01.007
Abstract: Abstract This paper presents new zircon U–Pb ages and Hf isotopic data, and whole–rock geochemical data for Late Devonian–Carboniferous igneous rocks from the Songnen–Zhangguangcai Range Massif (SRM), NE China, to constrain the late Paleozoic tectonic… read more here.
Keywords: zircon; geochemistry; late devonian; carboniferous igneous ... See more keywords
Are the Chinese Altai “terranes” the result of juxtaposition of different crustal levels during Late Devonian and Permian orogenesis?
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DOI: 10.1016/j.gr.2018.11.003
Abstract: Abstract The general structure of the Chinese Altai has been traditionally regarded as being formed by five tectono-stratigraphic ‘terranes’ bounded by large-scale faults. However, numerous detrital zircon studies of the Paleozoic volcano-sedimentary sequences shown that… read more here.
Keywords: crustal levels; altai; different crustal; devonian permian ... See more keywords
Identification of lateral inhomogeneity of arc basement by reconstructing the Late Devonian arc belt in the southwestern Central Asian Orogenic Belt
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Geodynamics"
DOI: 10.1016/j.jog.2019.101668
Abstract: Abstract A reconstruction of the Late Devonian arc belt in the West Junggar and adjacent Kazakhstan regions is crucial for understanding the architecture of the southwestern part of the Central Asian Orogenic Belt. Here, we… read more here.
Keywords: devonian arc; basement; arc belt; late devonian ... See more keywords
The origin of Late Devonian (Frasnian) stratiform and stratabound mudstone-hosted barite in the Selwyn Basin, Northwest Territories, Canada
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DOI: 10.1016/j.marpetgeo.2017.04.006
Abstract: Abstract Multiple occurrences of bedded barite (BaSO 4 ) are preserved in mudstones of the upper-most Canol Formation (Frasnian) of the Selwyn Basin (Canada). Samples of barite were collected from eight sites (seven measured sections),… read more here.
Keywords: barite; selwyn basin; hosted barite; nodular barite ... See more keywords
Discovery of Late Devonian plants from the southern Yellow Sea borehole of China and its palaeogeographical implications
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DOI: 10.1016/j.palaeo.2017.08.039
Abstract: Abstract Late Devonian plant remains, species of Archaeopteris and Sublepidodendron , and some representative miospores, are recognized from silty mudstone borehole core (well depth: 2063.1–2068.8 m) in the southern Yellow Sea, China. These plants have been… read more here.
Keywords: yangtze; yellow sea; southern yellow; late devonian ... See more keywords
Paleogeographic differences in temperature, water depth and conodont biofacies during the Late Devonian
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DOI: 10.1016/j.palaeo.2018.06.046
Abstract: The Famennian (Late Devonian) started after and ended with two of the seven largest crises of the Phanerozoic, the Kellwasser and Hangenberg events, respectively. In between, global environmental trends have been identified , involving cooling… read more here.
Keywords: water depth; conodont biofacies; late devonian; water ... See more keywords
From greenhouse to icehouse: Nitrogen biogeochemistry of an epeiric sea in the context of the oxygenation of the Late Devonian atmosphere/ocean system
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DOI: 10.1016/j.palaeo.2019.05.026
Abstract: Abstract The Late Devonian emergence of extensive arborescent terrestrial ecosystems produced changes in the Earth's atmosphere and climate that resulted in substantial changes to the biogeochemistry of marine ecosystems. The biogeochemistry of nitrogen in epeiric… read more here.
Keywords: epeiric sea; climate; greenhouse; late devonian ... See more keywords