Ichnofossil assemblages and palaeosols of the Upper Triassic Chinle Formation, south-eastern Utah (USA): Implications for depositional controls and palaeoclimate
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Palaeoecology of the Spathian Virgin Formation (Utah, USA) and its implications for the Early Triassic recovery
The Spathian (late Early Triassic) Virgin Formation of south-western Utah (U.S.A.) yields a comparatively diverse benthic fauna that flourished 2 Ma after the end-Permian mass extinction. In this study, we present quantitative palaeoecological data, which are analysed in the context of their depositional environments. This integrated approach helps to discriminate between effects of the end-Per...
متن کاملIchnotaxonomic analysis of trace fossil assemblages of the Upper Triassic Nayband Formation, Tabas Block, Central Iran
This study includes a thorough systematic analysis of the ichnological record in the Late Triassic siliciclastic Nayband Formation of the Tabas Block, Central Iran. A total of 48 ichnospecies representing 28 ichnogenera are identified and their preservation aspects, paleoecological aspects, producers and behavioral aspects are discussed. The ichnofauna includes Arenicolites, Asterosoma, Bergaue...
متن کاملMicro- and Small Vertebrate Biostratigraphy and Biochronology of the Upper Triassic Chinle Group, Southwestern Usa
A long-term goal of vertebrate biostratigraphers is to construct a microvertebrate biostratigraphy for lower Mesozoic rocks that complements and extends the mammal-based biostratigraphy in place for Upper Cretaceous-Recent deposits. Here we report substantial progress toward achieving this goal based on the distribution of microvertebrate fossils in the Upper Triassic Chinle Group of the wester...
متن کاملAn Aetosaur (reptilia:archosauria) from the Upper Triassic Chinle Group, Canyonlands National Park, Utah
A partial skeleton of the aetosaur Stagonolepis sp. is the first tetrapod body fossil recovered from Upper Triassic strata in Canyonlands National Park. The specimen consists of a partial tooth and numerous disarticulated vertebrae, ribs, and scutes found in the Blue Mesa Member of the Petrified Forest Formation (Chinle Group) near Upheaval Dome. Stagonolepis is an index taxon of the Adamanian ...
متن کاملsimulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
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ژورنال
عنوان ژورنال: Annales Societatis Geologorum Poloniae
سال: 2018
ISSN: 0208-9068
DOI: 10.14241/asgp.2018.015