Results 91 to 100 of about 46,306 (289)
DISCUSSION SUR L'AGE MURGABIEN OU MIDIEN DES SERIES PERMIENNES DU JEBEL TEBAGA (SUD DE LA TUNISIE)
A biostratigraphical analysis of Jebel Tebaga (Tunisia) is given. The Permian is divided in two zones: Afghanella zone of Middle-Upper Murgabian age; and Neoschwagerina, Yabeina and Dunbarula zone of Upper Murgabian- Lower Midian age, himself divided in ...
DANIEL VACHARD, SALOUA RAZGALLAH
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Upper Permian foraminifera from East Greenland
Foraminiferal assemblages recorded from limestones of the Upper Permian Wegener Halvø Formation in the Wegener Halvø, Karstryggen and Clavering Ø areas of East Greenland mostly consist of the nodosariid genera Dentalina, Frondina, Geinitzina and Ichtyolaria, and the miliolid genera Agathammina and Calcitornella.
Pattison, J., Stemmerik, Lars
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The First Quarterly Report Covering the Quarter Ending June 30, 1939 for the State-Wide Paleontologic-Mineralogic Survey [PDF]
Bureau of Economic ...
Works Progress Administration
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In lignin peroxidase and versatile peroxidase, low FRET from buried Trp to heme promotes long‐range electron transfer (LRET) from substrate to heme. This efficient electron flow is facilitated by reduced FRET competition. This mechanism likely evolved to enable the effective degradation of bulky, high‐redox‐potential lignin that cannot reach the enzyme'
Yi Ren +6 more
wiley +1 more source
Mesozoic Coleopteran Faunas fromArgentina: Geological Context, Diversity, Taphonomic Observations, and Comparison with Other Fossil Insect Records [PDF]
The order Coleoptera is the most diversified group of the Class Insecta and is the largest group of the Animal Kingdom. This contribution reviews the Mesozoic insects and especially the coleopteran records from Argentina, based on bibliographical and ...
Gallego, Oscar Florencio +2 more
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Tracking Dehydration Reactions and Fossil Fluid Flux in Shear Zones Using Garnet Microstructures
ABSTRACT Shear zones act as preferential fluid pathways during prograde and retrograde stages of metamorphism. Nonetheless, we still have limited knowledge of the drainage and permeability of natural settings. The preserved signature of fluid in exhumed rocks provides insights into fluid flow during burial and exhumation.
Alessandro Petroccia +7 more
wiley +1 more source
Accretionary Tectonics of the North American Cordillera [PDF]
Continental geology stands on the threshold of a change that is likely to be as fundamental as plate-tectonic theory was for marine geology. Ongoing seismic-reflection investigations into the deep crustal structure of North America are verifying that ...
Saleeby, Jason B.
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ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder +2 more
wiley +1 more source
Within the Dnipro-Donets aulacogen, Devonian salt stocks (diapirs) are widely developed. The suprastock, interstock, and nearstock areas associated with these diapirs have consistently drawn the interest of researchers in the Dnipro-Donets Depression for
Andrey Yakovlev, Iryna Samchuk
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Protelytroptera From the Upper Permian of Australia, With aDiscussion of the Protocoleoptera and Paracoleoptera [PDF]
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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