Variscan orogeny

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Related to Hercynian: Hercynian orogeny

Variscan orogeny

[va′ris·kən ȯ′räj·ə·nē]
(geology)
The late Paleozoic orogenic era in Europe, extending through the Carboniferous and Permian. Also known as Hercynian orogeny.
References in periodicals archive ?
In numerous cases the palycrete unit was observed to rest directly on Hercynian basement rocks.
Wood deftly explores the symbolic character of the "vast Hercynian forest" for Altdorfer's contemporaries.
It is located 120 kilometers northwest of the city of Chifeng, Inner Mongolia, which is 450 kilometers northeast of Beijing, China and comprises the Erbahuo mining district, part of the prolific silver belt on the structural join where the north edge of the North China platform meets with the south edge of the Hercynian fold belt of the Great Xingan Mountains.
The following Hercynian stage sequence, which lasted from the Devonian to the Carboniferous, is up to 1000 m thick (Brangulis & Kanevs 2002).
Vaher [4] divided the sedimentary cover of Estonia into three tectonic stages: Baikalian (Vendian and Early Cambrian), Caledonian (Late Cambrian-Early Devonian) and Hercynian (the end of Early Devonian-Late Devonian).
The mine area is dominated by syntectonic Hercynian granite and pegmatite which host a series of more than 13 en-echelon high-grade quartz sulphide veins.
Basement rocks record Hercynian subduction and plutonism on the northern margin of Gondwana, which in the Permian and Triassic rifled into several microcontinents, thereby creating the eastern Mediterranean Neotethys ocean.
Mineralization is hosted within carbonaceous sediments and associated with Hercynian granites, a geological environment similar to the large gold deposits occurring at Sukoi Log in Rthwestern will have a 56 percent working interest, Global 24 percent and the Chinese partner 20 percent.
The results of tectono-thermal development studies of the Baltica palaeobasin suggest that despite the relatively low tectonic activity of the basin since the Precambrian, the sedimentary complex has been significantly influenced by the Caledonian, Hercynian, and Uralian orogeneses, leading to fault reactivation and low-temperature hydrothermal processes.
Acadian and Hercynian structural evolution of southern New Brunswick.
The previous field program identified 10 target areas with anomalous sediment hosted gold mineralization within the thermal aureole/contact zone of Hercynian aged intrusives.