Results 31 to 40 of about 1,590 (161)
Известия высших учебных заведений: Геология и разведкаBackground. Brachiopods evolved throughout the Phanerozoic, and their study contributes to the knowledge of the largest biotic crises. Accumulation and revision of paleontological information require regular re-evaluation of the influence of these crises
D. A. Ruban
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Meteoritics &Planetary Science, EarlyView.Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska +6 more
wiley +1 more source
The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)
Sedimentology, EarlyView.ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti +5 more
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Distribution of brachiopods in the Lower Visean deposits in the Eastern Urals
Литосфера, 2019 Subject. This paper is aimed at investigating the distribution of brachiopods across the stratotypes of the Lower Visean regional substages and formations, as well as of the Upper Visean Zhukovsky regional substage, which are presently located in the ...
N. A. Kucheva
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Synchrotron radiation X-ray tomographic microscopy (SRXTM) of brachiopod shell interiors for taxonomy: Preliminary report [PDF]
Geološki Anali Balkanskoga Poluostrva, 2010 Synchrotron radiation X-ray tomographic microscopy (SRXTM) is a non-destructive technique for the investigation and visualization of the internal features of solid opaque objects, which allows reconstruction of a complete three-dimensional image
Motchurova-Dekova Neda +1 more
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Revista Mexicana de Ciencias Geológicas, 2019 Recent work on the taxonomy and paleobiogeographic affinities of Mesozoic brachiopods from Mexico is reviewed. Brachiopods are lesser components of Mesozoic marine fossil assemblages from Mexico but are abundant at certain horizons… in order to continue,
Michael R. Sandy
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Scientia Marina, 2004 The present-day brachiopods from the Mediterranean Sea were thoroughly described by nineteenth-century workers, to the extent that Logan´s revision in 1979 listed the same 11 species as Davidson, almost 100 years earlier.
A. Logan +3 more
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Upper Sandbian–lower Katian bio- and chemostratigraphy in the Pajevonys-13 core section, Lithuania [PDF]
Estonian Journal of Earth Sciences, 2016 The succession of five formations (Auleliai, Vilučiai, Alvitas, Šakiai, Jakšiai) corresponding to the upper Sandbian and lower Katian in southern Lithuania is dated based on new bio- and chemostratigraphical data from the Pajevonys-13 core section.
Linda Hints +4 more
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Литосфера, 2020 Research subject. In this study, the distribution of brachiopods in the Mid-Carboniferous boundary (MCB) sediments in the Middle and Southern Urals was investigated with the aim of determining the influence of the global Serpukhovian-Bashkirian minor ...
N. A. Kucheva
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The age of the brachiopod limestones from Guča, western Serbia [PDF]
Geološki Anali Balkanskoga Poluostrva, 2010 The asymmetric rhynchonellide brachiopod Cyclothyris? globata (ARNAUD, 1877) has a large distribution in the Coniacian, Santonian and Campanian outcrops of the western Tethys.
Radoičić Rajka +3 more
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