Tectonic Stresses in the Alpine-Mediterranean Region: Proceedings of the Symposium Held in Vienna, Austria, September 13-14, 1979

ISBN-13: 9783211815786 / Angielski / Miękka / 1980 / 256 str.

Adrian E. Scheidegger

Opis

The idea of the present symposium was conceived a few years ago by the Working Group 3 (WG3) of the Interunion Commission of Geodynamics (ICG). Now that its Program has been completed, it was decided to present the results of that part of the activities of the WG3 indicated in the symposium title. The writer was asked by the WG3 to coordinate the contributions. The European Geophysical Society (EGS) kindly offered to host the symposium during its meeting in Vienna in September, 1979, and Springer-Verlag in Vienna agreed to publish a "Proceedings" volume of the Symposium. These efforts are gratefully acknowledged. The whole subject matter of the symposium was divided into 6 "themes." The first concerns in situ stress determinations, the second deals with stresses as inferred from fault-plane solutions of earthquakes, the third geomorphic and geological effects of stresses, the fourth petrofabrics and stresses, the fifth recent displacements and the sixth geomechanical models. Upon the recommendation of the WG3, contributors were invited to present papers falling under the themes mentioned. The symposium, how ever, was also open to unsolicited contributors in the general call for papers for the EGS-meeting. It is hoped that the papers will present a fairly complete picture of the results obtained in the study of tectonic stresses in the Alpine-Mediterranean region during the ten years of the duration of the International Geodynamics Program."

Spis treści

Theme 1 In Situ Stress Measurements.- Stress Fields, Fracture Systems and the Mechanism for Movements in the Gneiss-Granite Area of the Mont Blanc Massif.- Tectonic Stresses in the Northern Foreland of the Alpine System. Measurements and Interpretation.- Tectonic Stresses in France.- In Situ Stress Measurements in Greece.- In Situ Stress Measurements in Austria.- In Situ Stress Measurements in Italy.- In Situ Strain Measurements in Libya.- Theme 2 Stresses Inferred from Fault Plane Solutions of Earthquakes.- Crustal Stresses Inferred from Fault-Plane Solutions of Earthquakes and Neotectonic Deformation in Switzerland.- Seismic Stresses in Southern Germany.- Seismic Stresses in the Region Azores — Spain — Western Mediterranean.- On the Focal Mechanism of Italian Earthquakes.- Theme 3 Geomorphic and Geological Effects of Stresses.- Geomorphological Problems in the Alps.- Alpine Joints and Valleys in the Light of the Neotectonic Stress Field.- Tectonic Stresses as Determined from the Character of Fault Systems in the Bohemian Massif.- Mathematical Representation of the Fracture Field in the Venetian Alps (NE Italy). Preliminary Results.- Theme 4 Petrofabrics and Stresses.- Palaeo- and Recent Stress Fields in Tunisia and Libya from the Cenozoic Structural Bearing.- Microstructures and Stresses in Naturally Deformed Peridotites.- Paleo-Stress Fields Around the Mediterranean Since the Mesozoic from Microtectonics. Comparison with Plate Tectonic Data.- Theme 5 Recent Displacements.- Vertical Movements in Switzerland.- Repeated Levelling and Vertical Crustal Movements. Problems and Results.- Theme 6 Geomechanical Models.- On the Nature of the Alpine Stress Field.- Stress Distribution in Overthrusting Slabs and Mechanics of Jura Deformation.- Numerical Simulation of Initiating Processes of the Evolution of Sedimentary Basins: The Pannonian Basin.- Reconstruction of Stress Fields for the Aegean by a Finite Element Model.