Auflistung Geologie nach Mitwirkenden "Siegesmund, S."
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Bowing of dimensional granitic stones
Vázquez, P.; Siegesmund, S.; Alonso, F. (Environmental Earth Sciences, 2010)Bowing is a well-known phenomenon seen in marbles used as building veneers. This form of rock weathering occurs as a result of external factors such as temperature, humidity, the system for anchoring the marble slabs or ... -
Direct observation of microcrack development in marble caused by thermal weathering
Luque, A.; Ruiz-Agudo, E.; Cultrone, G.; Sebastián, E.; Siegesmund, S. (Environmental Earth Sciences, 2010)One of the properties that makes marble such an excellent construction and ornamental material is its low porosity. It is very difficult for water or decay agents to penetrate the internal structure of materials with no ... -
Marble bowing: comparative studies of three different public building facades
Siegesmund, S.; Ruedrich, J.; Koch, A. (Environmental geologyEnvironmental geology, 2008)The veneer cladding of the Oeconomicum (OEC, Göttingen), the State Theatre of Darmstadt (STD, Darmstadt) and of the State and University Library (SUB, Göttingen) is characterised by pronounced bowing after a short time of ... -
Optimized extraction of dimension stone blocks
Mosch, S.; Nikolayew, D.; Ewiak, O.; Siegesmund, S. (Environmental Earth Sciences, 2010)The profitable production of dimension stone mainly depends on the extractable block size. The regularity and volume of the blocks are of critical importance, and are controlled by the three-dimensional pattern of the ... -
Petrographical and petrophysical properties of sandstones: statistical analysis as an approach to predict material behaviour and construction suitability
Stück, H.; Koch, R.; Siegesmund, S. (Environmental Earth Sciences, 2012)Most studies dealing with material properties of sandstones are based on a small data set. The present study utilizes petrographical and petrophysical data from 22 selected sandstones and ~300 sandstones from the literature ... -
Physical weathering of building stones induced by freeze–thaw action: a laboratory long-term study
Ruedrich, J.; Kirchner, D.; Siegesmund, S. (Environmental Earth Sciences, 2010)Damages to natural building stones induced by the action of frost are considered to be of great importance. Commonly, the frost resistance of building stones is checked by standardised freeze–thaw tests before using. ... -
Quality assessment of replacement stones for the Cologne Cathedral: mineralogical and petrophysical requirements
Graue, B.; Siegesmund, S.; Middendorf, B. (Environmental Earth Sciences, 2011)Owing to its long building history, different types of building stones comprised the construction of the Cologne Cathedral. Severe damage is observed on the different stones, e.g., sandstones, carbonate, and volcanic rocks, ... -
Stability assessment of marble statuaries of the Schlossbrücke (Berlin, Germany) based on rock strength measurements and ultrasonic wave velocities
Ruedrich, J.; Knell, C.; Enseleit, J.; Rieffel, Y.; Siegesmund, S. (Environmental Earth Sciences, 2013)The degree of weathering in natural stones on buildings and sculptures has been determined for many years in numerous cases by means of ultrasonic measurements. Conclusions concerning the strength of the rock and the type ... -
Stability assessment of sandstones from the St. Servatius Church in Quedlinburg (UNESCO’s World Heritage Site, Germany)
Siegesmund, S.; Friedel, C.-H.; Vogel, J.; Mosch, S.; Naumann, D.; Peter, A.; Giesen, H. (Environmental Earth Sciences, 2010)The St. Servatius Church in Quedlinburg (UNESCO’s World Heritage Site, Germany) is characterised by long-standing stability problems and structural damages, which have been known over the last several centuries. The ... -
Texture asymmetries as shear sense indicators in naturally deformed mono- and polyphase carbonate rocks
The microstructural and quantitative texture analyses of a naturally deformed calcite mylonite, a dolomite mylonite and a dolomitic calcite mylonite reveal different texture asymmetries for comparable deformation conditions. ... -
The behaviour of consolidated volcanic tuffs: weathering mechanisms under simulated laboratory conditions
Stück, H.; Forgó, L. Z.; Rüdrich, J.; Siegesmund, S.; Török, Á. (Environmental geologyEnvironmental geology, 2008)Five volcanic tuffs ranging from dacitic tuffs of Hungary to rhyolite, phonolite and basaltic tuffs of Germany were consolidated under laboratory conditions. Prior to consolidation an anti-hygro, a hydrous consolidant, ... -
The birth of the Alps: Ediacaran to Paleozoic accretionary processes and crustal growth along the northern Gondwana margin
Siegesmund, S.; Oriolo, S.; Schulz, B.; Heinrichs, T.; Basei, M. A. S.; Lammerer, B. (International Journal of Earth Sciences, 2021-05-10)New whole-rock geochemical and coupled U–Pb and Lu–Hf LA-ICP-MS zircon data of metasedimentary rocks of the Austroalpine, South Alpine and Penninic basement domains are presented, to disentangle the pre-Variscan tectonic ... -
The bowing potential of granitic rocks: rock fabrics, thermal properties and residual strain
Siegesmund, S.; Mosch, S.; Scheffzük, Ch.; Nikolayev, D. (Environmental Geology, 2007)The bowing of natural stone panels is especially known for marble slabs. The bowing of granite is mainly known from tombstones in subtropical humid climate. Field inspections in combination with laboratory investigations ... -
The effect of air pollution on stone decay: the decay of the Drachenfels trachyte in industrial, urban, and rural environments—a case study of the Cologne, Altenberg and Xanten cathedrals
Graue, B.; Siegesmund, S.; Oyhantcabal, P.; Naumann, R.; Licha, T.; Simon, K. (Environmental Earth Sciences, 2013)Severe stone deterioration is evident at the Cologne cathedral. In particular, the “Drachenfels” trachyte, which was the building material of the medieval construction period, shows significant structural deterioration as ... -
The marble sculptures of General Bülow and Scharnhorst in Berlin: comparative, non-destructive analysis of the weathering state after 12 years of exposure
Menningen, J.; Siegesmund, S.; Krompholz, R.; Rieffel, Y. (Environmental Earth Sciences, 2020-05-20)After almost 200 years of exposure, the monuments of General Scharnhorst and Bülow have been analysed by means of ultrasound. Both sculptures are made of Carrara marble, both sculptures have been exposed to the same ...