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Lochkov Formation

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Journal Article
Journal: GSA Bulletin
Published: 01 November 1969
GSA Bulletin (1969) 80 (11): 2165–2174.
... and by the incoming of terebratulids, Cyrtina, and common Schizophoria. Insofar as the Pridoli-Lochkov boundary in Bohemia can be revised to correspond to this boundary, the Pridoli is recognized as the uppermost Silurian Stage. In North America, the base of the Devonian, defined as the base of the Gedinnian...
Journal Article
Published: 01 March 1972
Bulletin of Canadian Petroleum Geology (1972) 20 (1): 104–174.
... . On the basis of graptolites, therefore, the Lochkov For- mation (Barrande's "f t bande") was reassigned to the Silurian. This interpretation (except for the uppermost part of the Lochkov Formation ) was adopted by Kettner and Kodym, who revised Barrandian stratigraph y (1919) and remapped this Early Paleozoic...
Journal Article
Published: 01 July 2008
Journal of Paleontology (2008) 82 (4): 657–675.
..., 1987 , pl. 1, fig. 3); calcareous. adaemona Vaněk , Vokáč, and Hörbinger , 1992; Koneprusia ( Koneprusia ); Lochkov Formation, upper layers (Lochkovian), Praha 5-Lochkov, cutting of the new road to Slivenec, Prague Basin, Bohemia, Czech Republic; Koneprusia ( Koneprusia ): Vaněk...
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Journal Article
Published: 01 September 2006
Journal of Paleontology (2006) 80 (5): 1026–1031.
... part of the succeeding Lower Devonian Lochkov Formation (U Topolů bed 14; Fig. 2 ) ( Chlupáč et al., 1972 ). In the Early Devonian, crinoidal limestones, calciturbidites, nodular, and also reefal types gained prevalence. Figure 1 —Outcrop of Silurian rocks in Bohemia, showing sample...
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Journal Article
Published: 01 July 2009
Journal of Paleontology (2009) 83 (4): 588–596.
... above), to confirm identifications as representatives of Orthotheca ; the range minimally is Lochkovian – Emsian (Lower Devonian); Europe and North America. This genus was proposed by Novák (1886) in a taxonomic work on the fauna of the Devonian Lochkov Formation, Lochkovian Stage ( = etage...
FIGURES
Journal Article
Journal: Palynology
Published: 08 April 2024
Palynology (2024) 48 (2): 2267642.
... whether the rare material of C. decipiens originates from the underlying Kopanina Formation or the Požáry Formation. Similarly, the rare A. inclyta could have come from the overlying Lochkov Formation (see Chlupáč 1994 ). The material from the Šárka and Požáry formations can be assigned...
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Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP423.1
EISBN: 9781862399556
... ; Koptíková et al. 2010 ; Vacek 2011 ). MS values across the Lochkov and Praha formations show a strong positive shift from below 1 up to c. 20 m 3 kg −1 ×10 −9 shortly after the Lochkovian/Pragian boundary, with a second maximum of c. 30 m 3 kg −1 ×10 −9 in the upper third of the Pragian...
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Journal Article
Published: 01 October 2020
Italian Journal of Geosciences (2020) 139 (3): 469–484.
... an area of about 10 km 2 at 1:5000 through standard field techniques. In the Italian part of the study area (Regione Autonoma Friuli Venezia Giulia), the cartographic base consists of the 1:5000 Regional Topographic Maps (Tavolette della Carta Regionale Numerica) freely provided in digital format...
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Journal Article
Published: 01 September 1965
Bulletin of Canadian Petroleum Geology (1965) 13 (3): 365–381.
...J. G. Johnson ABSTRACT The Paleozoic section at Windmill Window along the northern front of the Simpson Park Range consists almost wholly of carbonate rocks ranging in age from Late Ordovician to Middle Devonian and includes the following formations listed in ascending order: Hanson Creek Formation...
Journal Article
Published: 14 September 2009
Geological Magazine (2010) 147 (2): 171–180.
... at 8 m above the base of the Lochkov Formation within the classic Barrandian sequence at Klonk, near Prague, Czech Republic, and at the base of the uniformis graptolite Biozone. A more recent borehole drilled across the boundary has documented further the graptolite and sedimentological data (Chlupàč...
Journal Article
Published: 01 June 2019
Italian Journal of Geosciences (2019) 138 (2): 153–170.
... of about 100 m comprises five lithostratigraphic units (Alticola, Rauchkofel, Nölbling, La Valute and Findenig formations) spanning in age from the latest Silurian to the Early Devonian. The complex structural setting of the section results from a main fault dividing the succession in two separate segments...
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Journal Article
Published: 01 August 1990
Journal of the Geological Society (1990) 147 (4): 663–674.
..., diversity and extinction rate of planktic and benthic faunas. Sedimentary changes involve fluctuations in the rate of clay deposition and carbonate production, the advance and retreat of carbonate deposition on the shelf edge, the timing of oolite, reef, and black shale formation, and changes between oxic...
Journal Article
Published: 01 January 2005
Journal of Paleontology (2005) 79 (1): 48–62.
... with basolaterally divergent inner hinge plates, lacking fold or sulcus, possible junior synonym of Clorinda rotunda Lindström, 1861 ). Pentamerus sphaerulites Barrande, 1879 , Kopanina Formation, Ludlow, Prague Basin, Bohemia. Pentamerus pelagicus Barrande, 1847 , Lochkov Formation, Bohemia...
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Journal Article
Published: 04 August 2014
Geological Magazine (2015) 152 (2): 298–315.
... pro Mineralogii a Geologii 33 , 131 –47. Přibyl A. 1990 . Early Devonian Ostracoda from the upper part of the Lochkov Formation of central Bohemia . Časopis pro Mineralogii a Geologii 35 , 355...
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Journal Article
Published: 10 November 2017
Geological Magazine (2019) 156 (3): 485–509.
... only locally more complicated within the lowermost Devonian Lochkov Formation ( Fig. 9 ). This stratigraphical unit consists of c. 10–20 cm thick limestone beds alternating with calcareous shale interbeds of approximately the same thickness, which facilitated bedding-parallel slip and thus folding...
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Journal Article
Published: 04 November 2020
Bulletin de la Société Géologique de France (2020) 191 (1): 32.
.... 27 and 28; Perrier et al. , 2011 : pl. 1, fig. 2. Type locality. – Lochkov suburb of Prague, Czech Republic. Type horizon. – Požáry Formation, Pridoli Series, stratigraphical division e2 of Barrande, 1872 ( Kříž, 1992 ). Material. – Twelve valves from the outcrop at Kanda...
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Journal Article
Published: 01 January 2018
European Journal of Mineralogy (2018) 30 (1): 135–147.
... O, and at temperatures around 840 °C. Zirconolite was stabilized relative to zircon by the Ti–Ca-rich nature of the melts and to baddeleyite by the high SiO 2 activity. Formation of Zr-bearing titanite, as recorded in other potassic suites, was precluded by the preferential entry of Ti into the CGM...
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Journal Article
Published: 06 October 2011
Geological Magazine (2012) 149 (3): 507–531.
... . ultimus at the Lochkov locality. Cr. intercostatus and C. hawlei form part of the distinct Denckmanites–Cromus trilobite Assemblage established by Chlupáč ( 1987 ). This assemblage is known only from a few sections near Lochkov village where it is restricted to a single thin bed. Šnajdr ( 1985...
Journal Article
Published: 01 June 1999
Bulletin of Canadian Petroleum Geology (1999) 47 (2): 85–103.
... Formation (Fig. 3; Antoshkina et al., 1989; Antoshkina, 1996a) and overlain by the upper Emsian, deep-water limestone and shale of the Vyazov Formation (Fig. 3; Pershina, et al., 1971). Although the shelf-margin reef facies were probably laterally extensive, it is exposed only in some areas, including...
Journal Article
Published: 29 June 2018
Geological Magazine (2019) 156 (6): 1069–1091.
... section comprises the uppermost part of the quartzite-dominated Bar Formation and overlying black shales of late Hirnantian and early Rhuddanian age, which have been dated by graptolites to the upper Metabolograptus persculptus and lower–middle Akidograptus ascensus–Parakidograptus acuminatus biozones...
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