Upper Jurassic bivalves from Milne Land, East Greenland
نویسندگان
چکیده
منابع مشابه
A Giant Sand Injection Complex: The Upper Jurassic Hareelv Formation of East Greenland
Sandstone intrusions have always caught the attention of geologists and are in many cases highly spectacular due to the contrast between light-coloured intrusive sandstones and dark host mudstones. In recent years it has become increasingly clear, that large, irregular bodies of massive sandstone may also be of intrusive origin, but the timing and nature of remobilization of the primary deposit...
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The Kamar-e-Mehdi Formation (Callovian – Oxfordian) is the fill of a shelf lagoon situated in the western and central parts of the so-called Tabas Block for a N-S distance of 200-300 km. From the predominantly fine-grained carbonates, which in the depocenter reach more than 1000 m in thickness, 69 taxa of bivalves are described, which differ greatly in their preservation depending on their orig...
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Department of Earth Sciences, University of Oxford, Parks Road, Oxford OX1 3PR, U.K. [email protected] Department of Geology, The Field Museum, 1400 S Lake Shore Drive, Chicago, Illinois, 60606, USA. Laboratory of Palaeontology, Faculty of Geology and Geophysics, University of Bucharest, 1 N. Balcescu Ave., 70111, Bucharest, Romania. Geological Institute, University of Copenhagen,...
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The Triassic-Jurassic boundary (Tr-J; ∼201 Ma) is marked by a doubling in the concentration of atmospheric CO2, rising temperatures, and ecosystem instability. This appears to have been driven by a major perturbation in the global carbon cycle due to massive volcanism in the Central Atlantic Magmatic Province. It is hypothesized that this volcanism also likely delivered sulphur dioxide (SO2) to...
متن کاملIsopod trackways from the Crayssac Lagerstätte, upper Jurassic, France
Well-preserved arthropod trackways are described from the laminated limestones of the Crayssac Lagerstätte (south-west France, Lower Tithonian). They occur in sediments deposited in the temporary coastal mudflats of intertidal to supratidal zones. The trackways are referred to Pterichnus isopodicus isp. nov., and are interpreted as the locomotion traces of isopods. Different trackway morphotype...
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ژورنال
عنوان ژورنال: Bulletin Grønlands Geologiske Undersøgelse
سال: 1982
ISSN: 2597-2936,0105-3507
DOI: 10.34194/bullggu.v144.6686