Results 31 to 40 of about 46,008 (233)

Rifting and arc-related early Paleozoic volcanism along the North Gondwana margin: geochemical and geological evidence from Sardinia (Italy) [PDF]

, 2012
Three series of volcanic rocks accumulated during the Cambrian to Silurian in the metasediment-dominated Variscan basement of Sardinia. They provide a record of the changing geodynamic setting of the North Gondwana margin between Upper Cambrian and ...
BUZZI L, FUNEDDA A., GAGGERO L, OGGIANO G   +3 more
core   +1 more source

A new species of middle Rhuddanian Halysites (Tabulata) from Meitan, northern Guizhou, Southwest China [PDF]

Estonian Journal of Earth Sciences, 2015
A new halysitid species, Halysites gaojiangensis, is systematically described from the middle Rhuddanian (Llandovery, Silurian) Wulipo Bed at Gaojiang, Meitan County, northern Guizhou Province, Southwest China.
Guangxu Wang, Renbin Zhan
doaj   +1 more source

Characterization of Upper Wenlock and Lower Ludlow strata in the Silurian reference section of the Chernov Uplift (Timan-Pechora petroleum province) [PDF]

Нефтегазовая геология: Теория и практика, 2023
The features of the Upper Wenlock and Lower Ludlow boundary strata in the Silurian reference section located in the central part of the Chernov Uplift in the Arctic zone of the European Northeast of Russia are characterized.
Matveev V.A., Beznosova T.M.
doaj  

On the graptolite schist's formation, Silurian-Lower Devonian, in the Carpatho-Balkanides of eastern Serbia [PDF]

Geološki Anali Balkanskoga Poluostrva, 2005
The fabric of the Silurian and a part of the Lower Devonian in the Carpatho-Balkanides of eastern Serbia, i.e. in two large geotectonic units, the Kučaj Unit (Getic) and the Luznica Unit (West Kraishte), is reviewed in this paper.
Krstić Branislav, Maslarević Ljubinka, Sudar Milan   +2 more
doaj   +1 more source

Searching for the Ordovician–Silurian boundary in Estonia, Latvia and Lithuania [PDF]

Estonian Journal of Earth Sciences, 2023
The present study focuses on determining the position of the lower boundary of the Silurian System in the eastern Baltic region. To achieve this, we conducted a comprehensive analysis of stable isotopic curves, combined with previously published data on ...
Tõnu Meidla, Olle Hints, Leho Ainsaar
doaj   +1 more source

The early evolution of land plants, from fossils to genomics: a commentary on Lang (1937) ‘On the plant-remains from the Downtonian of England and Wales' [PDF]

, 2015
© 2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
Burgess ND, Church AH, Dianne Edwards, Edwards D, Fanning U, Fanning U, Kenrick P, Kenrick P, Kräusel R, Paul Kenrick, Steemans P, Wellman CH, Wellman CH   +12 more
core   +2 more sources

Shale gas potential of the lower Silurian hot shales in southern Iran and the Arabian Plate: Characterization of organic geochemistry

Petroleum, 2023
A significant phase of global warming appeared during the Llandovery and productive Silurian hot shale was preserved all over the world. The lower Silurian shale is the main effective source rock for most of the Paleozoic hydrocarbon in Iran and the ...
Ali Rahmani, Mahsa Naderi, Ehsan Hosseiny   +2 more
doaj   +1 more source

A new fireworm (Amphinomidae) from the Cretaceous of Lebanon identified from three-dimensionally preserved myoanatomy [PDF]

, 2015
© 2015 Parry et al. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in ...
A Filippova, A Filippova, A Tzetlin, A Tzetlin, AA Hay, C Helm, D Eibye-Jacobsen, D Eibye-Jacobsen, D Grimaldi, Dan Sykes, DEG Briggs, E Borda, F Pleijel, G Bracchi, G Purschke, G Purschke, G Rouse, GE Budd, Gregory D. Edgecombe, GW Rouse, H Hausen, I Thompson, J Vinther, J Vinther, Jakob Vinther, JR Marsden, JR Marsden, L Feldkamp, L Parry, L Parry, Luke A. Parry, M Imajima, M Müller, MD Sutton, P Chellouche, Paul Wilson, PH Bitter von, PR Wilby, S Conway Morris, S Conway Morris, U Farrell   +40 more
core   +2 more sources

The trace fossil Zoophycos from the Silurian of Estonia [PDF]

Estonian Journal of Earth Sciences, 2015
Trace fossils of the ichnogenus Zoophycos have been described for the first time from the Silurian of Baltica. They occur in Llandovery pure limestones of middle Estonia and in Ludfordian argillaceous limestones and early Pridoli crinoid grainstones of ...
Olev Vinn, Ursula Toom
doaj   +1 more source

The Mesozoic along-strike tectono-metamorphic segmentation of Longmen Shan (eastern Tibetan plateau) [PDF]

, 2018
The Longmen Shan belt (eastern border of the Tibetan plateau) constitutes a tectonically active region as demonstrated by the occurrence of the unexpected 2008 Mw 7.9 Wenchuan and 2013 Mw 6.6 Lushan earthquakes in the central and southern parts of the ...
A. Robert, Airaghi, Airaghi, Airaghi, Ansberque, Arne, Beyssac, Billerot, Burchfiel, C. J. Warren, Chen, Cook, D. Deldicque, Deng, Densmore, Deschamps, Dirks, Dubacq, Godard, Guo, Harrison, Harrowfield, Huang, Huang, Hubbard, Hubbard, J. de Sigoyer, Jia, Jiang, Kapp, Kapp, Kirby, L. Airaghi, Lanari, Lanari, Li, Li, Li, Li, Liao, Lichun, Liu, Massonne, Meng, Meng, Michele, Passchier, Robert, Robert, Robert, Roger, Roger, Roger, S. Guillot, SBGMR (Sichuan Bureau of Geology and Mineral Resources), Sigoyer, Sigoyer, Stipp, Tan, Tan, Tian, Vidal, Vidal, Wang, Wang, Wang, Weller, Whitney, Worley, Xu, Xu, Xue, Yan, Zhang, Zhang, Zhang, Zhang, Zheng, Zheng, Zhou, Zhou   +80 more
core   +3 more sources