Auflistung nach Mitwirkenden "Oyhantçabal, Pedro"
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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 ... -
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 ... -
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 ... -
Multi-accretional tectonics at the Rio de la Plata Craton margins: preface
Siegesmund, Siegfried; Basei, Miguel; Oyhantçabal, Pedro (International Journal of Earth Sciences, 2010) -
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 ... -
The Sierra Ballena Shear Zone in the southernmost Dom Feliciano Belt (Uruguay): evolution, kinematics, and deformation conditions
Oyhantçabal, Pedro; Siegesmund, Siegfried; Wemmer, Klaus; Layer, Paul (International Journal of Earth Sciences, 2009)The Sierra Ballena Shear Zone (SBSZ) is part of a high-strain transcurrent system that divides the Neoproterozoic Dom Feliciano Belt of South America into two different domains. The basement on both sides of the SBSZ shows ... -
The transpressional connection between Dom Feliciano and Kaoko Belts at 580–550 Ma
Oyhantçabal, Pedro; Siegesmund, Siegfried; Wemmer, Klaus; Passchier, Cees (International Journal of Earth Sciences, 2010)A new U–Pb SHRIMP age of 551 ± 4 Ma on a mylonitic porphyry that intruded into the Sierra Ballena Shear Zone (Southernmost Dom Feliciano Belt, Uruguay) and a review of relevant published data make possible a more refined ...