Metamorphic Evolution of Chloritoid-Bearing Micaschist from the Variscan Elstergebirge: Evidences for Stacking of High-Pressure Rocks in the Saxothuringian Zone of Central Europe

2020 ◽  
Vol 31 (3) ◽  
pp. 425-446
Author(s):  
Gelareh Rahimi ◽  
Hans-Joachim Massonne
Keyword(s):  
High Pressure ◽  
Central Europe ◽  
Metamorphic Evolution ◽  
Saxothuringian Zone

scholarly journals Metasediments Covering Ophiolites in the HP Internal Belt of the Western Alps: Review of Tectono-Stratigraphic Successions and Constraints for the Alpine Evolution

Minerals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 411
Author(s):  
Paola Tartarotti ◽  
Silvana Martin ◽  
Andrea Festa ◽  
Gianni Balestro
Keyword(s):  
High Pressure ◽  
Western Alps ◽  
Metamorphic Evolution ◽  
Alpine Orogeny ◽  
Sedimentary Evolution ◽  
Hp Metamorphism ◽  
Tethys Ocean ◽  
Depositional Setting ◽  
Oceanic Rocks ◽  
Outer Band

Ophiolites of the Alpine belt derive from the closure of the Mesozoic Tethys Ocean that was interposed between the palaeo-Europe and palaeo-Adria continental plates. The Alpine orogeny has intensely reworked the oceanic rocks into metaophiolites with various metamorphic imprints. In the Western Alps, metaophiolites and continental-derived units are distributed within two paired bands: An inner band where Alpine subduction-related high-pressure (HP) metamorphism is preserved, and an outer band where blueschist to greenschist facies recrystallisation due to the decompression path prevails. The metaophiolites of the inner band are hugely important not just because they provide records of the prograde tectonic and metamorphic evolution of the Western Alps, but also because they retain the signature of the intra-oceanic tectono-sedimentary evolution. Lithostratigraphic and petrographic criteria applied to metasediments associated with HP metaophiolites reveal the occurrence of distinct tectono-stratigraphic successions including quartzites with marbles, chaotic rock units, and layered calc schists. These successions, although sliced, deformed, and superposed in complex ways during the orogenic stage, preserve remnants of their primary depositional setting constraining the pre-orogenic evolution of the Jurassic Tethys Ocean.

scholarly journals Metamorphic Evolution and Tectonic Implications of Garnet-Bearing Mica Schist in Sumdo High Pressure Belt from Eastern Lhasa Block, Tibet

2015 ◽  
Vol 89 (s2) ◽  
pp. 3-4 ◽  
Author(s):  
Mei CHEN ◽  
Jingsui YANG ◽  
Cong ZHANG ◽  
Zuolin TIAN ◽  
Jie HUANG ◽  
...  
Keyword(s):  
High Pressure ◽  
Mica Schist ◽  
Metamorphic Evolution ◽  
Tectonic Implications

Metamorphic evolution of high-pressure and ultrahigh-temperature granulites from the Highland Complex, Sri Lanka

2006 ◽  
Vol 28 (1) ◽  
pp. 20-37 ◽  
Author(s):  
Yasuhito Osanai ◽  
Krishnan Sajeev ◽  
Masaaki Owada ◽  
K.V.Wilbert Kehelpannala ◽  
W.K.Bernard Prame ◽  
...  
Keyword(s):  
High Pressure ◽  
Sri Lanka ◽  
Metamorphic Evolution ◽  
Ultrahigh Temperature

scholarly journals NOCE MROŹNE W POZNANIU I ICH CYRKULACYJNE UWARUNKOWANIA

2018 ◽  
pp. 225-238
Author(s):  
ARKADIUSZ M. TOMCZYK
Keyword(s):  
Water Management ◽  
High Pressure ◽  
Central Europe ◽  
Air Temperature ◽  
National Research Institute ◽  
Pressure System ◽  
Air Masses ◽  
Circulation Types ◽  
Pressure Ridge ◽  
Minimum Air Temperature

The main purpose of this article was to determine the pressure situations and circulation types causing the occurrence of frosty nights in Poznań in the years 1966/67–2015/16. A night was assumed to be a frosty night with a minimum temperature below –10°C. The article uses the daily values of the minimum air temperature for the period of 1966–2016 for the station in Poznań. The data was provided by the Institute of Meteorology and Water Management – National Research Institute. In the analyzed years, 10 frosty nights were recorded on average every season. Conducted studies showed a decrease in their number, although these changes were not statistically significant. The average occurrence of frosty nights was associated with the presence of a high-pressure system over Central Europe, which developed within a high-pressure ridge extending over the majority of the continent. Such a pressure situation led to the advection of continental air masses from the eastern sector.

scholarly journals Overview of the synoptic and pollution situation over Europe during the EUCAARI-LONGREX field campaign

2010 ◽  
Vol 10 (8) ◽  
pp. 19129-19174 ◽  
Author(s):  
T. Hamburger ◽  
G. McMeeking ◽  
A. Minikin ◽  
W. Birmili ◽  
M. Dall'Osto ◽  
...  
Keyword(s):  
Boundary Layer ◽  
High Pressure ◽  
Central Europe ◽  
Number Concentration ◽  
Series Data ◽  
Vertical Profiles ◽  
Free Troposphere ◽  
Field Campaign ◽  
Accumulation Mode ◽  
Continental Scale

Abstract. The European integrated project on Aerosol Cloud Climate and Air Quality Interactions (EUCAARI) focuses on understanding the interactions of climate and air pollution. As part of the EUCAARI intensive observational period, an aircraft field campaign (EUCAARI-LONGREX) was conducted in May 2008. The campaign aimed at studying the distribution and evolution of air mass properties on a continental scale. Airborne aerosol and trace gas measurements were performed aboard the German DLR Falcon 20 and the British FAAM BAe-146 aircraft. This paper outlines the meteorological situation over Europe during May 2008 and the temporal and spatial evolution of predominantly anthropogenic particulate pollution inside the boundary layer and the free troposphere. Time series data of six selected ground stations are used to discuss continuous measurements besides the single flights. The observations encompass total and accumulation mode particle number concentration (0.1–0.8 μm) and black carbon mass concentration as well as several meteorological parameters. Vertical profiles of total aerosol number concentration up to 10 km are compared to vertical profiles probed during previous studies. During the first half of May 2008 an anticyclonic blocking event dominated the weather over Central Europe. It led to increased pollutant concentrations within the centre of the high pressure inside the boundary layer. Due to long-range transport the accumulated pollution was partly advected towards Western and Northern Europe. The measured aerosol number concentrations over Central Europe showed in the boundary layer high values up to 14 000 cm−3 for particles in diameter larger 10 nm and 2300 cm−3 for accumulation mode particles during the high pressure period, whereas the middle free troposphere showed rather low concentrations of particulates. Thus a strong negative gradient of aerosol concentrations between the well mixed boundary layer and the clean middle troposphere occurred.

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