Late Carboniferous to Permian Evolution of Arctic Basins, The Norwegian-Greenland Sea Rift and Permian Basins Of West And Central Europe

1988 ◽  
Keyword(s):  
Central Europe ◽  
Late Carboniferous ◽  
Greenland Sea

The first Permian scorpionfly from Germany (Insecta, Panorpida: Protomeropidae)

2021 ◽  
Vol 4 (3) ◽  
Author(s):  
MARKUS J. POSCHMANN ◽  
ANDRÉ NEL
Keyword(s):  
Central Europe ◽  
Black Shale ◽  
New Genus ◽  
Climatic Changes ◽  
Late Carboniferous ◽  
Early Permian ◽  
New Genus And Species

A new genus and species, Glanomerope virgoferroa gen. et sp. nov., the first Permian record of a scorpionfly from Germany, is described from the Niedermoschel black shale, Meisenheim Formation, Lower Rotliegend of the Saar-Nahe basin. It is assigned to the Protomeropidae, the oldest known family of the holometabolous superorder Panorpida, ranging from the Bashkirian-Moscovian (Late Carboniferous) to the Roadian. It confirms that this family was very diverse in Central Europe during the Early Permian. Protomeropidae possibly became extinct in the course of major climatic changes that progressively affected the supercontinent Pangea after the Artinskian, although generally these changes seem to have more severely affected some other insects such as the palaeopteran Dictyoneuridae than holometabolous groups.

scholarly journals The Late Carboniferous deeply eroded Tharandt Forest caldera–Niederbobritzsch granite complex: a post-Variscan long-lived magmatic system in central Europe

2021 ◽  
Author(s):  
Christoph Breitkreuz ◽  
Alexandra Käßner ◽  
Marion Tichomirowa ◽  
Manuel Lapp ◽  
Shan Huang ◽  
...  
Keyword(s):  
Central Europe ◽  
Late Carboniferous ◽  
Geochemical Data ◽  
Volcanic Complex ◽  
Magmatic System ◽  
Minimum Thickness ◽  
Rhyolitic Magma ◽  
Two Samples ◽  
Granite Complex ◽  
Radiometric Ages

AbstractSamples and documentation of outcrops and drillings, facies analysis, whole rock geochemistry and radiometric ages have been employed to re-evaluate the Late Carboniferous Tharandt Forest caldera (TFC) and the co-genetic Niederbobritzsch granite (NBG) in the eastern Erzgebirge near Dresden, Germany. The c. 52 km2 TFC harbours strongly welded ignimbrites with a preserved minimum thickness of 550 m. Composition of initial fallout tephra at the base of the TFC fill, comprising lithics of rhyolitic and basic lava, and of silica-rich pyroclastic rocks, suggests a bimodal volcanic activity in the area prior to the climactic TFC eruption. The lower part of the TFC fill comprises quartz-poor ignimbrites, overlain by quartz-rich ignimbrites, apparently without a depositional break. Landslides originating from the collapse collar of the caldera plunged into the still hot TFC fill producing monolithic gneiss mesobreccia with clasts ≤ 1 m in a pyroclastic matrix. Aphanitic and porphyritic rhyolitic magma formed ring- and radial dykes, and subvolcanic bodies in the centre of TFC. Whole rock geochemical data indicate a high silica (most samples have > 73 wt% SiO2) rhyolitic composition of the TFC magma, and a similar granodiorite–granitic composition for the NBG. Based on drillings and caldera extent, a minimum volume of 22 km3 of TFC fill is preserved, the original fill is assumed at about 33 km3. This estimate translates into a denudation of at least c. 210 m during Late Paleozoic to pre-Cenomanian. Telescopic subsidence of the TFC took place in two, perhaps three stages. A possible TFC outflow facies has been completely eroded and distal TFC tuff has not been recognized in neighboring basins. New CA-ID-TIMS measurements on two TFC samples gave mean zircon ages of 313.4 ± 0.4 Ma and 311.9 ± 0.4 Ma; two samples from NBG resulted in 318.2 ± 0.5 Ma and 319.5 ± 0.4 Ma. In addition, for one sample of the ring dyke an age of ca. 314.5 ± 0.5 Ma has been obtained. These ages, together with field relations, allow for a model of a long-standing evolution of an upper crustal magmatic system (~ 5 Ma?), where pulses of magmatic injection and crustal doming alternate with magmatic quietness and erosion. Together with the Altenberg–Teplice Volcanic Complex, located some 10 km to the southeast, the TFC–NBG Complex represents an early post-Variscan magmatic activity in central Europe.

Book review

2002 ◽  
Vol 52 (4) ◽  
pp. 503-514
Author(s):  
András Simonovits ◽  
Ádám Török ◽  
Beatrix Lányi
Keyword(s):  
Central Europe ◽  
Knowledge Economy ◽  
International Competitiveness ◽  
Regional Studies ◽  
Academic Press ◽  
Eu Membership ◽  
New Knowledge ◽  
Edward Elgar

T. Boeri - A. Börsch-Supan - A. Brugviani - R. A. Kapteyn - F. Peracchi (eds): Pensions: More Information, Less Ideology(Boston/Dordrecht/London: Kluwer Academic Press, 2001, 196 pp.) B. Å. Lundvall - G. Esping-Andersen - L. Soete - M. Castells - M. Telò - M. Tomlinson - R. Boyer - R. M. Lindley (ed.: M. J. Rodrigues): The New Knowledge Economy in Europe. A Strategy for International Competitiveness and Cohesion (Cheltenham, UK, Northampton, MA, USA: Edward Elgar, 2002, 337 pp.) G. Gorzelak - É. Ehrlich - L. Faltan - M. Illner: Central Europe in Transition: Toward EU Membership (Warsaw: Regional Studies Association, 2001, 371 pp.)

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