Browsing ELibrary by Subject "Famennian"

Browsing ELibrary by Subject "Famennian"

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  • CARBON ISOTOPE GEOCHEMISTRY OF THE FRASNIAN-FAMENNIAN TRANSITION 
    Joachimski M.M.; Pancost R.D.; Freeman K.H.; Ostertag-Henning C.; Buggisch W. (2002)
    Carbon isotope records for inorganic and total organic carbon (TOC) as well as for individual organic biomarkers show two positive excursions in the Late Frasnian with comparable shape and amplitude in δ13C. The positive ...
  • CORRELATION OF FRASNIAN-FAMENNIAN BOUNDARY DEPOSITS IN WESTERN REGIONS OF THE MAGNITOGORSK MEGAZONE (EASTERN FLANK OF SOUTHERN URALS) 
    Mizens G.A.; Chernykh V.V.; Mizens L.I. (2004)
    Upper Devonian clastic complexes (the Zilair Formation flysch, Biyagoda mixtite, Koltuban limestone conglomerate, Bugodak volcanogenic-sedimentary sequence) are considered. In the eastern flank of the Southern Urals, the ...
  • LARGE IGNEOUS PROVINCES AND MASS EXTINCTIONS 
    Wignall P.B. (2001)
    The temporal link between mass extinctions and large igneous provinces is well known. Here, we examine this link by focusing on the potential climatic effects of large igneous province eruptions during several extinction ...
  • LATE FRASNIAN-FAMENNIAN CLIMATES BASED ON PALYNOMORPH ANALYSES AND THE QUESTION OF THE LATE DEVONIAN GLACIATIONS 
    Streel M.; Caputo M.V.; Loboziak S.; Melo J.H.G. (2000)
    Palynomorph distribution in Euramerica and western Gondwana, from the Latest Givetian to the Latest Famennian, may be explained, to some extent, by climatic changes. Detailed miospore stratigraphy dates accurately the ...
  • MASS EXTINCTIONS AND SEA-LEVEL CHANGES 
    Hallam A.; Wignall P.B. (1999)
    Review of sea-level changes during the big five mass extinctions and several lesser extinction events reveals that the majority coincide with large eustatic inflexions. The degree of certainty with which these eustatic ...
  • REEF DEVELOPMENT AT THE FRASNIAN/FAMENNIAN MASS EXTINCTION BOUNDARY 
    Copper P. (2002)
    A newly compiled global reef database indicates that the 5–6 Myr long Frasnian (Late Devonian) metazoan reef episode had relatively low diversity compared to Middle Devonian highs (with over 200 genera of calcitic rugose ...
  • STRATIGRAPHY AND GEOLOGICAL EVENTS AT THE FRASNIAN-FAMENNIAN BOUNDARY IN THE SOUTHERN URALS 
    Veimarn A.B.; Kononova L.I.; Pravikova N.V.; Tevelev A.V.; Puchkov V.N.; Abramova A.N.; Artyushkova O.V.; Baryshev V.N.; Maslov V.A.; Pazukhin V.N.; Degtyaryov K.E.; Mosejchuk V.M.; Yarkova A.V. (2004)
    Detailed biostratigraphic correlation of the late Frasnian and Famennian sectoins in the South Urals shows that the key global scale events near the boundary of Frasnian and Famennian are clearlyxpressed in combination ...
  • STRATOTYPE OF THE FAMENNIAN VOLGOGRAD HORIZON IN THE RUSSIAN PLATFORM 
    Mantsurova V.N.; Tsygankova V.A.; Smirnov V.E. (2003)
    Stratotype sections of the lower Famennian Volgograd Horizon, which are located in the Umet-Linevo paleodepression, the northeastern Volgograd area, are described. Lithological-geophysical characteristics of borehole ...
  • SYNOPSIS OF THE SELACHIAN GENUS LISSODUS BROUGH, 1935 
    Duffin C.J. (2001)
    The stratigraphic record, distribution and composition of the selachian genus Lissodus is briefly reviewed. 38 species are currently recognised, with 26 further records not designated to species level. Teeth of the genus ...
  • THE FAMENNIAN STAGE OF THE SOUTHERN TRANSCAUCASIA 
    Mamedov A.B. (2002)
    The Famennian sediments of the southern Transcaucasia are described. The Noravank and Ertich formations are referred to the lower substage of the Famennian, the Kadrli and Shamamidzor formations, to the middle one, and the ...
  • THE FRASNIAN-FAMENNIAN BOUNDARY IN THE SOUTHERN URALS 
    Abramova A.N.; Artyushkova O.V. (2004)
    On the western slope of the Southern Urals, a continuous conodont zone sequence within different facies of the Frasnian-Famennian (F-F) boundary beds is documented. In all the sections the boundary between both stages runs ...