Auflistung Geologie nach Mitwirkenden "Siegesmund, Siegfried"
Anzeige der Dokumente 1-20 von 27
-
Black dimensional stones: geology, technical properties and deposit characterization of the dolerites from Uruguay
Morales Demarco, Manuela; Oyhantçabal, Pedro; Stein, Karl-Jochen; Siegesmund, Siegfried (Environmental Earth Sciences, 2010)Dimensional stones with a black color occupy a prominent place on the international market. Uruguayan dolerite dikes of andesitic and andesitic–basaltic composition are mined for commercial blocks of black dimensional ... -
Contemporaneous assembly of Western Gondwana and final Rodinia break-up: Implications for the supercontinent cycle
Oriolo, Sebastián; Oyhantçabal, Pedro; Wemmer, Klaus; Siegesmund, Siegfried (Geoscience Frontiers, 2017)Geological, geochronological and isotopic data are integrated in order to present a revised model for the Neoproterozoic evolution of Western Gondwana. Although the classical geodynamic scenario assumed for the period ... -
Development and assessment of protective winter covers for marble statuaries of the Schlossbrücke, Berlin (Germany)
Ruedrich, Joerg; Rieffel, York; Pirskawetz, Stephan; Alpermann, Holger; Joksch, Ute; Gengnagel, Christoph; Weise, Frank; Plagge, Rudolph; Zhao, Jianhua; Siegesmund, Siegfried (Environmental Earth Sciences, 2010)The present study documents the results of an inter-disciplinary model project that was planned with the aim of developing an innovative winter covering system for marble statuaries located on the Schlossbrücke (Berlin). ... -
Dolomitic slates from Uruguay: petrophysical and petromechanical characterization and deposit evaluation
Morales Demarco, Manuela; Oyhantçabal, Pedro; Stein, Karl-Jochen; Siegesmund, Siegfried (Environmental Earth Sciences, 2012)Slates are internationally known as roof and façade-cladding material since prehistoric times. The methods required to mine and manufacture these dimensional stones are relatively simple in comparison to those utilized in ... -
Evaluation of the representative elementary volume (REV) of a fractured geothermal sandstone reservoir
The objective of this study is to evaluate a representative elementary volume (REV) in a fractured geothermal sandstone reservoir in Germany using the discrete fracture network (DFN) model approach. Due to the lack of in ... -
Exhumation and uplift of the Sierras Pampeanas: preliminary implications from K–Ar fault gouge dating and low-T thermochronology in the Sierra de Comechingones (Argentina)
Löbens, Stefan; Bense, Frithjof; Wemmer, Klaus; Dunkl, István; Costa, Carlos; Layer, Paul; Siegesmund, Siegfried (International Journal of Earth Sciences, 2011)The Sierras Pampeanas in central and north-western Argentina constitute a distinct morphotectonic feature between 27°S and 33°S. The last stage of uplift and deformation in this area are interpreted to be closely related ... -
Exhumation history and landscape evolution of the Sierra de San Luis (Sierras Pampeanas, Argentina) - new insights from low - temperature thermochronological data
Bense, Frithjof; Costa, Carlos; Oriolo, Sebastián; Löbens, Stefan; Dunkl, Istvan; Wemmer, Klaus; Siegesmund, Siegfried (Andean Geology, 2017)This paper presents low-temperature thermochronological data and K‑Ar fault gouge ages from the Sierra de San Luis in the Eastern Sierras Pampeanas in order to constrain its low-temperature thermal evolution and ... -
Granitic dimensional stones in Uruguay: evaluation and assessment of potential resources
Morales Demarco, Manuela; Oyhantçabal, Pedro; Stein, Karl-Jochen; Siegesmund, Siegfried (Environmental Earth Sciences, 2012)In Uruguay commercial granite varieties comprise mafic rocks, granitoids, and syenitoids. There is a long tradition in Uruguay, as well as worldwide, of using dimensional stones in architecture and art, specially granitic ... -
Influence of shape fabric and crystal texture on marble degradation phenomena: simulations
Shushakova, Victoria; Fuller, Edwin; Siegesmund, Siegfried (Environmental Earth Sciences, 2010)Microstructure-based finite element simulations were used to study the influence of grain shape fabric and crystal texture on thermoelastic responses related to marble degradation phenomena. Calcite was used as an illustrative ... -
Microcracking in calcite and dolomite marble: microstructural influences and effects on properties
Shushakova, Victoria; Fuller, Edwin; Siegesmund, Siegfried (Environmental Earth Sciences, 2012)Microstructure‐based finite-element analysis with a microcracking algorithm was used to simulate an actual degradation phenomenon of marble structures, i.e., microcracking. Both microcrack initiation and crack propagation ... -
Moisture expansion as a deterioration factor for sandstone used in buildings
Ruedrich, Joerg; Bartelsen, Tobias; Dohrmann, Reiner; Siegesmund, Siegfried (Environmental Earth Sciences, 2010)The expansion processes that develop in building stones upon changes of moisture content may be an important contributing factor for their deteriorations. Until recently, few data could be found in the literature concerning ... -
Moisture expansion associated to secondary porosity: an example of the Loseros Tuff of Guanajuato, Mexico
López-Doncel, Rubén; Wedekind, Wanja; Dohrmann, Reiner; Siegesmund, Siegfried (Environmental Earth Sciences, 2012)The old mining city of Guanajuato in middle Mexico preserves one of the most important historical legacies in colonial buildings, the UNESCO declared the city World Heritage Site in 1988. Practically all the colonial ... -
Monument futures: climate change, air pollution, decay and conservation—the Wolf-Dieter Grimm-volume
Siegesmund, Siegfried; Snethlage, Rolf; Ruedrich, Joerg (Environmental GeologyEnvironmental Geology, 2008) -
Monuments under threat: environmental impact, preservation strategies and natural stone recourses
Siegesmund, Siegfried; Ruedrich, Joerg (Environmental Earth Sciences, 2011) -
Multi-accretional tectonics at the Rio de la Plata Craton margins: preface
Siegesmund, Siegfried; Basei, Miguel; Oyhantçabal, Pedro (International Journal of Earth Sciences, 2010) -
Natural building stones of Mexico–Tenochtitlán: their use, weathering and rock properties at the Templo Mayor, Palace Heras Soto and the Metropolitan Cathedral
Wedekind, Wanja; Ruedrich, Joerg; Siegesmund, Siegfried (Environmental Earth Sciences, 2011)In the Aztec period and in colonial times different natural stones originating in the Valley of Mexico were used for building construction. Stone weathering was investigated onsite at various historical buildings within ... -
Rettung für das Markttor von Milet: Schadensanalysen an Marmor, Mörtel und Stahl
Siegesmund, Siegfried; Ruedrich, Joerg (Georgia Augusta, 2005) -
The Neoproterozoic-early Paleozoic metamorphic and magmatic evolution of the Eastern Sierras Pampeanas: an overview
Steenken, André; López de Luchi, Mónica; Martínez Dopico, Carmen; Drobe, Malte; Wemmer, Klaus; Siegesmund, Siegfried (International Journal of Earth Sciences, 2010)The Eastern Sierras Pampeanas were structured by three main events: the Ediacaran to early Cambrian (580–510 Ma) Pampean, the late Cambrian–Ordovician (500–440 Ma) Famatinian and the Devonian-Carboniferous (400–350 Ma) ... -
The Río de la Plata Craton: a review of units, boundaries, ages and isotopic signature
Oyhantçabal, Pedro; Siegesmund, Siegfried; Wemmer, Klaus (International Journal of Earth Sciences, 2010)A review of the lithostratigraphic units in the Río de la Plata Craton and of new and previously published geochronological, isotopic and geophysical data is presented. Sm–Nd TDM model ages between 2.6 and 2.2 Ga characterize ...