Paleozoic formations of the Northeast margin of the European platform

2006 ◽  
Author(s):  
A. I. Eliseev ◽  
◽  
A. I. Antoshkina ◽  
V. A. Saldin ◽  
N. Yu. Nikulova ◽  
...  
Keyword(s):  
Continental Margin ◽  
Sedimentary Basins ◽  
Passive Continental Margin ◽  
European Continent ◽  
History Of ◽  
Geodynamic Reconstructions

Paleozoic sedimentary basins of the northeast European Platform is a component of large megabasin of the northeast passive continental margin of the European continent in the Paleozoic. The establishment of a connection between a paleodynamic history of a basin and its sedimentary formations types, which are the most reliable indicators of geodynamic conditions, is one of the primary problems of modern lithology. Reliable indicators at geodynamic reconstructions are genetically predetermined by laterial and vertical lines of the sedimentary formations. Formations and lithological complexes being the brightest indicators of the paleodynamic regimes change of the basin have been considered formations lines of the passive continental margin of the westuralian type during the Paleozoic.

U–Pb ages for magmatism and deformation in the New Quebec Orogen

1997 ◽  
Vol 34 (5) ◽  
pp. 716-723 ◽  
Author(s):  
N. Machado ◽  
T. Clark ◽  
J. David ◽  
N. Goulet
Keyword(s):  
Lower Limit ◽  
Continental Margin ◽  
Detrital Zircons ◽  
Passive Continental Margin ◽  
Source Rocks ◽  
Sedimentary Sequences ◽  
Deformational History ◽  
Fold And Thrust Belt ◽  
History Of ◽  
Magmatic Event

The New Quebec Orogen is a Paleoproterozoic fold and thrust belt, active from 2.17 to 1.77 Ga, bordering the eastern margin of the Archean Superior Province. The orogen developed on a long-lived, passive continental margin and comprises two volcanic – sedimentary sequences. The ages presented in this study help to bracket the magmatic and deformational history of the orogen. A glomeroporphyritic gabbro from the Hellancourt Formation was dated at 1874 ± 3 Ma and a rhyodacite from the upper Murdoch Formation yielded an identical age of 1870 ± 4 Ma. These data allow the correlation of the two units and indicate that they are 10–14 Ma younger than the estimated age for the Sokoman Formation. These ages, together with already published work, indicate that magmatism related to the younger magmatic event occurred at 1884–1870 Ma. Albitized pelites from the Murdoch Formation contain euhedral detrital zircons 2707–2690 Ma old, indicating that the source rocks were Archean. An undeformed monzonitic intrusion occurring close to Nachicapau Lake is 1813 ± 4 Ma old and is the lower limit for the age of deformation in the central sector of the orogen.

B'nai B'rith on the European continent after World War Two

1992 ◽  
Vol 13 (2) ◽  
pp. 101-126
Author(s):  
Hans Levy
Keyword(s):  
Second World War ◽  
The State ◽  
Jewish Organization ◽  
World War Two ◽  
World War ◽  
European Continent ◽  
History Of ◽  
State Of Israel ◽  
Second World

The focus of this paper is on the oldest international Jewish organization founded in 1843, B’nai B’rith. The paper presents a chronicle of B’nai B’rith in Continental Europe after the Second World War and the history of the organization in Scandinavia. In the 1970's the Order of B'nai B'rith became B'nai B'rith international. B'nai B'rith worked for Jewish unity and was supportive of the state of Israel.

scholarly journals Evidence for multiple introductions of an invasive wild bee species currently under rapid range expansion in Europe

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Julia Lanner ◽  
Fabian Gstöttenmayer ◽  
Manuel Curto ◽  
Benoît Geslin ◽  
Katharina Huchler ◽  
...  
Keyword(s):  
Cluster Formation ◽  
Invasion History ◽  
European Continent ◽  
Multiple Introductions ◽  
Wild Bee ◽  
Invasion Stage ◽  
Middle Europe ◽  
History Of ◽  
Genetic Clusters ◽  
Colonization Dynamics

Abstract Background Invasive species are increasingly driving biodiversity decline, and knowledge of colonization dynamics, including both drivers and dispersal modes, are important to prevent future invasions. The bee species Megachile sculpturalis (Hymenoptera: Megachilidae), native to East-Asia, was first recognized in Southeast-France in 2008, and has since spread throughout much of Europe. The spread is very fast, and colonization may result from multiple fronts. Result To track the history of this invasion, codominant markers were genotyped using Illumina sequencing and the invasion history and degree of connectivity between populations across the European invasion axis were investigated. Distinctive genetic clusters were detected with east–west differentiations in Middle-Europe. Conclusion We hypothesize that the observed cluster formation resulted from multiple, independent introductions of the species to the European continent. This study draws a first picture of an early invasion stage of this wild bee and forms a foundation for further investigations, including studies of the species in their native Asian range and in the invaded range in North America.

Late quaternary sedimentation and glacial history of the western Svalbard continental margin

1996 ◽  
Vol 133 (3-4) ◽  
pp. 123-156 ◽  
Author(s):  
Espen S. Andersen ◽  
Trond M. Dokken ◽  
Anders Elverhøi ◽  
Anders Solheim ◽  
Ingrid Fossen
Keyword(s):  
Continental Margin ◽  
Late Quaternary ◽  
Glacial History ◽  
History Of

A preliminary model for the erosional history of the onshore continental margin of S.E. Brazil

1993 ◽  
Vol 21 (4) ◽  
pp. 588
Author(s):  
Kerry Gallagher ◽  
Chris Hawkesworth ◽  
Cherry Lewis ◽  
Marta Mantovani
Keyword(s):  
Continental Margin ◽  
Preliminary Model ◽  
History Of
Sign in / Sign up

Export Citation Format

Share Document