Browsing by Subject "Produkte mechanischer Deformation {Petrologie}"
Now showing items 1-16 of 16
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Correlation of magnetic fabric and crystallographic preferred orientations of naturally deformed carbonate — mica rocks from the Alpi Apuane in Italy and the Damara Orogen in Namibia
Otto, Michael; Hirt, Ann M.;
; Schmidt, Volkmar; (11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)
The anisotropy of magnetic susceptibility (AMS) is a time-efficient method to describe crystallographic preferred orientations of rocks and has been applied in a wide field of sedimentary, metamorphic and magmatic geology. ... -
Experimental study of the evolution of fault gouge in layered sand–clay sequences
Schmatz, Joyce; Vrolijk, Peter;; Giese, Steffen; Ziegler, Martin; Zee, Wouter van der (11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)
This study focuses on clay smear processes during fault gouge evolution in sand-clay sequences at depths up to 2 km. A clay-rich fault gouge can dramatically lower the fault’s permeability, and prediction of this process ... -
Extensional crustal-scale shear zones in the Western Cyclades (Kea, Greece)
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)Intense seismicity and intensely developed active and ancient fault systems are common to the Aegean Region. Extending/ thinning crust involves a complex interplay of (1) Gulf of Corinth riftexpansion, (2) west- and ... -
Feldspar deformation in greenschist facies shear zones (Aar-Massif, Switzerland)
Hauten, Sarah;; Dobmeier, Christoph (11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)
Granitic gneisses of the Central Aar Granite host a shear zone network that formed at greenschist facies conditions. The work area is located in the Bächlital (Grimsel area, Central Switzerland) and was chosen for the analysis ... -
Gefügecharakterisierung von Calcitmyloniten und Marmoren bezüglich senkrecht zueinander stehender Faltenteilstrukturen, Alpi Apuane, Italien
Pfaar, Rüdiger;; Molli, Giancarlo; (11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)
Im nördlichen Teil des Appenin in Italien ist der metamorphe Komplex der Alpi Apuane in Form eines tektonischen Fensters sehr gut aufgeschlosssen. Die metamorphen Gesteine der Alpi Apuane — Metakarbonate, Kiesel- ... -
Kinematics and deformation structures in a crustal-scale shear zone on Kea (W. Cyclades, Greece)
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)It is generally agreed upon that the exhumation of metamorphic rocks in the Aegean is caused by post orogenic extension in the late Oligocene to early Miocene. This extension is in principle largely accommodated by ... -
Late stage evolution of the Serifos Metamorphic Core Complex (Cyclades, Greece)
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)The island of Serifos is located in the Western Cyclades within the Attic- Cycladic metamorphic belt. It represents the westward continuation of an arcuate belt of Metamorphic Core Complexes with intrusions of late ... -
Microfabrics and textures of quartzites of the Indiavaí- Lucialva shear zone, SW Amazonian Craton: preliminary conclusions
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)The purpose of this contribution is to present preliminary results regarding the kinematics and deformation conditions of the Indiavaí-Lucialva Shear Zone, based on the analysis of the texture and microfabrics of ... -
Mikrostruktur und Textur nach Scherverformungsversuchen an Hämatiterzen
Siemes, Heinrich; Klingenberg, B.; Rybacki, E.; Naumann, M.;; Jansen, Ekkehard; Kunze, Karsten (11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)
Die Beziehungen zwischen der Mikrostruktur und der kristallografischen Vorzugsorientierung (Textur) von Hämatiterzen der gebänderten Eisenerzformation (BIF) in Brasilien wurden in vielen Veröffentlichungen behandelt, ... -
Neotectonic markers in the Panafrican belt formations of Cameroon: elements of interpretation and their environmental impacts
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)The North equatorial Panafrican Belt, whose Cameroonian formations are dated between 650 and 400 million years, and which are located in the North of the Congo Craton, is subdivided in to three major geodynamic domains: a ... -
Texturanalysen von Halitmyloniten aus den Salzstrukturen Gorleben, Morsleben und Teutschenthal
Seidel, Torben;; Küster, Yvonne; Ullemeyer, Klaus; Schramm, Michael (11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)
Das Verständnis der Mechanismen und der Prozesse der Gefügeentwicklung und die damit verbundene Charakterisierung der anisotropen physikalischen Eigenschaften von natürlich deformiertem Steinsalz sind von grundlegender ... -
Textures in mylonitised granite from Banefo area in the central part of the Cameroon Central Shear Zone (central Africa) — Kinematics and gradian deformation indicators
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)The North Equatorial Panafrican belt is constituted by orthogneissified metamorphic and magmatic sets linked to tectonometamorphic events of the neoproterozoic orogeny. This belt whose formations are situated in the North ... -
The effect of water, temperature and strain rate on the dislocation creep microstructure, recystallized grain size and flow stress of quartz
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006-03)Since the work of Griggs & Blacic (1965) it is well known that the crystal plastic flow strength of ‘wet’ quartz samples is much lower than that of ‘dry’ samples deformed at the same conditions, and the general effect of ... -
The Serifos Metamorphic Core Complex (Greece) — kinematic investigations of the southern detachment mylonites
(11. Symposium "Tektonik, Struktur- und Kristallingeologie", 2006)The island of Serifos is situated about 100km SSE of Athens in the Aegean Sea and belongs to the Attic-Cycladic massif. The geology of Serifos is largely characterized by a shallow hornblendebiotite granodiorite pluton ...
