Results 61 to 70 of about 342 (179)
Geologica Acta, 2009 Outcrops on the western slope of the La Invernada Range, San Juan Precordillera (W Argentina), were surveyed for lithofacial analysis and graptolite-conodont high resolution biostratigraphy.
G. ORTEGA +3 more
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Transactions of the Geological Society of Glasgow, 1882 I n the first edition of his famous work, the “Systema Naturæ,” published in 1736, the great Swedish naturalist, Linnæus, proposed the name Graptolithus for certain natural markings occasionally found upon stones, which are not true fossils, but are mere superficial stainings, having the ...
openaire +2 more sources
Papers in Palaeontology, Volume 10, Issue 3, May/June 2024.Abstract The documentation of cuticular micro‐ornament is vital for the taxonomic assignment of palaeoscolecids: vermiform lower Palaeozoic ecdysozoans interpreted as stem‐group priapulans or early diverging panarthropods. This is due to the absence of the character‐rich proboscis and tail hooks in palaeoscolecid material not from Burgess Shale‐type ...
Richard J. Howard +4 more
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Journal of Marine Science and EngineeringAccurately delineating the range of the Xiang-E submarine uplifts is the key to the exploration and development of Silurian shale gas in the Western Hunan–Hubei region.
Zhi Zhou +5 more
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Journal of Palaeogeography, 2013 The Silurian Longmaxi Shale (SLS) is the target for shale gas exploration and exploitation in the southeastern Sichuan Basin. Based on detailed description of cores and outcrops, analysis of Gamma Ray (GR) logs, thin sections and mineralogical data, the ...
Jiang Zaixing, Guo Ling, Liang Chao
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Pristiograptus (Graptoloidea) from the perneri - lundgreni biozones (Silurian) of Lithuania
Carnets de Géologie, 2003 Two new forms of Pristiograptus dubius, here designated as varieties "A" and "B", are described and figured. Both were found in core samples representing the perneri through lundgreni biozones of the Wenlock epoch.
Radzevičius Sigitas
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Geologica Acta, 2005 The Tremadocian graptolite and conodont faunas of the Gondwana Margin recorded at the Eastern Cordillera (EC) of Salta and Jujuy provinces (northwestern Argentina) are studied.
G. DEL CARMEN ORTEGA, G.L. ALBANESI
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Rivista Italiana di Paleontologia e StratigrafiaThe ichnofossil record of the early Emsian limestone-dominated succession in the Prague Synform, including the Bohemian Graptolite Event beds, was studied with a focus on ichnofabric development and its sedimentological and diagenetic implications.
Radek Mikuláš +4 more
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Youqicang pingjia yu kaifa, 2022 At present, the Wufeng-Longmaxi Marine high quality shale is the only case that has been commercially exploited in China. Taking Huangying section in Wulong District, Chongqing as an example, the characteristics of sedimentary geochemistry and their ...
HE Xipeng +7 more
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