Results 31 to 40 of about 2,191 (193)

Seawater redox variations during the deposition of the Kimmeridge Clay Formation, United Kingdom (Upper Jurassic): evidence from molybdenum isotopes and trace metal ratios [PDF]

, 2010
The Kimmeridge Clay Formation (KCF) and its equivalents worldwide represent one of the most prolonged periods of organic carbon accumulation of the Mesozoic.
Abbink, Ahmadi, Al-Suwaidi, Algeo, Algeo, Algeo, Anbar, Angela L. Coe, Anthony S. Cohen, Archer, Arnold, Barling, Bertrand, Chambers, Christopher R. Pearce, Cohen, Cohen, Cox, Crusius, Crusius, Demaison, Dunn, Emerson, Glennie, Gradstein, Hallam, Herbin, Hesselbo, Hesselbo, Huang, Jenkyns, Jenkyns, Jenkyns, Jenkyns, Kemp, Lallier-Vergès, Lallier-Vergès, Lees, Lees, Ling, Matthews, McArthur, McManus, Miller, Morford, Morgans-Bell, Neubert, Oschmann, Oschmann, Padden, Pearce, Pearce, Pearson, Piper, Poulson, Pálfy, Raiswell, Raiswell, Saelen, Schouten, Siebert, Siebert, Sinninghe Damsté, Taylor, Tossell, Tribovillard, Tribovillard, Tribovillard, Tribovillard, Tyson, Tyson, Tyson, van Dongen, van Kaam-Peters, van Kaam-Peters, Weedon, Weedon, Weissert, Wignall, Wignall, Wignall, Ziegler   +81 more
core   +1 more source

Extent and duration of marine anoxia during the Frasnian– Famennian (Late Devonian) mass extinction in Poland, Germany, Austria and France [PDF]

, 2004
– The intensity and extent of anoxia during the two Kellwasser anoxic events has been investigated in a range of European localities using amultidisciplinary approach (pyrite framboid assay, gamma-ray spectrometry and sediment fabric analysis).
Bond, D.P.G., Racki, G., Wignall, P.B.
core   +1 more source

The Toarcian Oceanic Anoxic Event in the Ionian Zone, Greece

Palaeogeography, Palaeoclimatology, Palaeoecology, 2014
Abstract The Early Jurassic was characterized by a global disturbance of the carbon cycle known as the Toarcian Oceanic Anoxic Event (T-OAE). This event is recorded worldwide by a negative excursion in marine and terrestrial carbon-isotope ratios, typically interrupting an overarching positive trend attributed to large-scale burial of marine organic ...
N. Kafousia, V. Karakitsios, E. Mattioli, S. Kenjo, H.C. Jenkyns   +4 more
openaire   +3 more sources

Coring the sedimentary expression of the early Toarcian Oceanic Anoxic Event: new stratigraphic records from the Tethys Ocean [PDF]

Scientific Drilling, 2019
The Toarcian Oceanic Anoxic Event (T-OAE) interval was cored at Colle di Sogno and Gajum in the Lombardy Basin (Southern Alps, northern Italy). The Sogno and Gajum cores recovered 26.83 and 31.18 stratigraphic metres, respectively, of pelagic sediments ...
E. Erba, G. Gambacorta, S. Visentin, L. Cavalheiro, D. Reolon, G. Faucher, M. Pegoraro   +6 more
doaj   +1 more source

The Toarcian Oceanic Anoxic Event and the Jenkyns Event (IGCP-655 final report)

Episodes, 2020
International ...
Reolid, Matias, Mattioli, Emanuela, Duarte, Luís, Marok, Abbas   +3 more
openaire   +3 more sources

THE EARLY JURASSIC OIL SHALES IN THE QIANGTANG BASIN, NORTHERN TIBET: BIOMARKERS AND TOARCIAN OCEANIC ANOXIC EVENTS; pp. 441–455 [PDF]

Oil Shale, 2013
In the Qiangtang Basin, northern Tibet, the most complete and extensive marine sedimentary strata outcropped in the Shuanghu-Sewa-Amdo area during the Jurassic, especially the Early Jurassic.
HUGH C. JENKYNS, HAISHENG YI, LAN CHEN, XUEJUAN DA, MINQUAN XIA, GUIWEN XU, CHANGJUN JI   +6 more
doaj   +1 more source

A global event with a regional character: the Early Toarcian Oceanic Anoxic Event in the Pindos Ocean (northern Peloponnese, Greece) [PDF]

Geological Magazine, 2011
AbstractThe Early Toarcian (Early Jurassic, c. 183 Ma) was characterized by an Oceanic Anoxic Event (T-OAE), primarily identified by the presence of globally distributed approximately coeval black organic-rich shales. This event corresponded with relatively high marine temperatures, mass extinction, and both positive and negative carbon-isotope ...
Kafousia, N., Karakitsios, V., Jenkyns, H.C, Mattioli, Emanuela   +3 more
openaire   +7 more sources

New data on internal morphology of exceptionally preserved Nannirhynchia pygmaea (Morris, 1847) from the Lusitanian Basin (Brachiopoda, Early Jurassic, Portugal) [PDF]

Fossil Record, 2012
Pyritized internal moulds of articulated shells of the Early Jurassic brachiopod taxon Nannirhynchia pygmaea were found in beds closely below the early Toarcian oceanic anoxic event in the Polymorphum Zone in Portugal.
M. Schemm-Gregory, M. H. Henriques
doaj   +3 more sources

Evolution of the last koninckinids (Athyridida, Koninckinidae), a precursor signal of the early Toarcian mass extinction event in the Western Tethys [PDF]

, 2015
Koninckinids are a suitable group to shed light on the biotic crisis suffered by brachiopod fauna in the Early Jurassic. Koninckinid fauna recorded in the late Pliensbachian–early Toarcian from the easternmost Subbetic basin is analyzed and identified as
Baeza Carratalá, José Francisco, García Joral, Fernando, Giannetti, Alice, Tent-Manclus, Jose Enrique   +3 more
core   +2 more sources

Palaeoepidemiology in extinct vertebrate populations: factors influencing skeletal health in Jurassic marine reptiles [PDF]

Royal Society Open Science, 2019
Palaeoepidemiological studies related to palaeoecology are rare, but have the potential to provide information regarding ecosystem-level characteristics by measuring individual health.
Judith M. Pardo-Pérez, Benjamin Kear, Erin E. Maxwell   +2 more
doaj   +1 more source