Experimental and Natural Rock Deformation / Experimentelle Und Natürliche Gesteinsverformung : Proceedings of the International Symposium Darmstadt, February 17–18, 1969

Ten years have passed since the last symposium on "Rock Deformation" was held in Los Angeles. The intervening period has seen striking advances in X-ray and experimental structural petrology. The Symposium of the Working Group on X-Ray and Experimental Structural Petrology, held at the invitation of the Deutsche Forschungsgemeinschaft on 17 and 18 February, 1969, in the Mineralogy Institute of the Technische Hochschule Darmstadt, was intended to display the progress made in this field. A meeting on the same had been held in 1968 at the Mineralogy Institute of the Technische Hochschule Aachen. The outcome of many years of effort has been the development of new, automated in­ struments for the X-ray processing of specimens. The X-ray and optical data so obtained are processed by computer to give complete texture diagrams; it is also possible to rotate the coordinates, and to make an indirect determination of data which have not been measured. In experimental structural petrology, the temperature and pressure dependence of the translational system has been studied in minerals from various types of rock formation which had not previously been investigated, and deductions were made concerning certain mineral parageneses. The original contributions on field findings were conceived and executed so as to point up the possible links with experimental work on structural petrology. They determine for a given mineral facies the pressure and temperature ranges to be applied in experimen­ tal studies of deformation in single crystals and in rocks. Front Matter....Pages i-x Röntgenographische Gefügeanalyse [mit dem Zählrohr-Texturgoniometer] von Quarzschiefern aus Zentral-Shikoku, Japan....Pages 1-18 Calculation of X-ray Diffraction Patterns for Anisotropic Mineral Aggregates....Pages 19-37 A Computer Programme to Construct Spherical Projections....Pages 38-74 The Use of X-Rays in Petrofabric Studies....Pages 75-97 Die Textur-Messeinrichtung nach Lücke mit Automatischer Aufzeichnung der Korrigierten Polfigur....Pages 98-99 Garnet Orientation in Different Metamorphic facies....Pages 100-108 Experimental Deformation of Constrained Crystals of Calcite in Extension....Pages 109-141 Lattice-Orienting Mechanismus in Schistose Anhydrite....Pages 142-164 Experimental Deformation of Galena Ores....Pages 165-208 Festigkeits-und Gefügeuntersuchungen an Experimentell und Natürlich Verformten Zinkblendeerzen....Pages 209-252 Über die Verwendbarkeit der Anisotropie der Magnetischen Suszeptibilität zur Bestimmung der Magnetitorientierung....Pages 253-262 Observation of Superfine Fabrics with the Scanning Microscope....Pages 263-271 Syntectonic and Annealing Recrystallization of Fine-Grained Quartz Aggregates....Pages 272-335 Regelungseigenschaften Monomineralischer Gesteine bei Gerichteter Beanspruchung....Pages 336-374 Experimental Deformation Of Plagioclases....Pages 375-403 Der Schlingenbau im Grundgebirge des Renströmgebietes, Skelleftefeld, Nordschweden, in Montangeologischer und Ingenieurgeologischer sicht....Pages 405-448 Ein Beitrag zur Typisierung der Schiefgürtelbilder in Quarztektoniten....Pages 449-475 Zur Entstehung Steilstehender B-Achsen am Beispiel Eines Querprofiles in den Hohen Tauern (Dorfertal,Grossvenedigerbereich)....Pages 476-485 Principal γ-Olivine Fabrics: Their Tectonic and Metamorphic Significance....Pages 486-495 Metric and Topological Properties of rock and ore Textures....Pages 496-516 Tektonik und Vererzung im Cobalt-Gebiet, Canada: Einige neue Aspekte....Pages 517-525