Results 211 to 220 of about 6,116 (263)

The origin of tectonic stress in the lithosphere

Tectonophysics, 1984
Abstract The sources of lithospheric stress and their distinctive features are briefly reviewed. It is suggested that there are two main categories of lithospheric stress: renewable stress which persists despite continuing stress relaxation and non-renewable stress which can be dissipated by relief of the initial strain.
M.H.P. Bott, N.J. Kusznir
openaire   +1 more source

Global patterns of tectonic stress

Nature, 1989
Regional patterns of present-day tectonic stress can be used to evaluate the forces acting on the lithosphere and to investigate intraplate seismicity. Most intraplate regions are characterized by a compressional stress regime; extension is limited almost entirely to thermally uplifted regions.
Zoback, Mary Lou, Zoback, Mark D., Adams, J., Assumpção, M., Bell, S., Bergman, E. A., Blümling, P., Brereton, N. R., Denham, D., Ding, J., Fuchs, K., Gay, N., Gregersen, S., Gupta, H. K., Gvishiani, A., Jacob, K., Klein, R., Knoll, P., Magee, M., Mercier, J. L., Müller, B. C., Paquin, C., Rajendran, K., Stephansson, O., Suarez, G., Suter, M., Udias, A., Xu, Z. H., Zhizhin, M.   +28 more
openaire   +2 more sources

Central Europe: Active or Residual Tectonic Stresses

pure and applied geophysics, 1977
The regional stress field in the Western Alps and their northern foreland has been investigated by in situ stress determinations. More than 600 strain relief measurements were made with resistance strain gages in boreholes carried out in mines, tunnels and quarries. The stresses calculated and data obtained from other papers were used to get a detailed
Gerhard Greiner, J. Henning Illies
openaire   +1 more source

Tectonic Stress Fields and Karst

2014
Many natural causes exist controlling the formation of fractures. The rock properties relating to the brittleness is one of the most important of them for the variations in natural fracture density. These properties may vary from regional to local scale; they may vary significantly within the rock formations and between formations.
Stefan Shanov, Konstantin Kostov
openaire   +1 more source

Tectonic stress in the southwestern Arabian shield

Engineering Geology, 1986
Abstract Studies of dam sites in the southwestern region of Saudi Arabia gave the opportunity to undertake an in-depth study of the old basement of the Arabian shield. By comparing the results obtained at all scales (seismicity, fracturing of the shield, data on overall tectonics and in-situ measurements) it has been possible to formulate an ...
Shield A. Giraud, F. Thouvenot, R. Huber
openaire   +2 more sources

The sources of lithospheric tectonic stresses

Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences, 1991
Abstract The stresses associated with large-scale tectonic deformation have three possible origins: (1) plate-boundary forces counterbalanced by viscous drag beneath the plates; (2) density heterogeneities situated within the plates (say at depths shallower than 200 km); (3) mass heterogeneities in the deep mantle.
openaire   +1 more source

Tectonic Stress Reconstruction Based on Structural Features in Tectonic Superposition Areas

Mining, Metallurgy & Exploration, 2020
Tectonic stress is an important parameter for understanding the dynamics of underground engineering and for the exploitation of coalbed methane. Multiple-period structural features usually have complex spatial relationships in tectonic superposition areas, which provides evidence for identification of the sequence of the tectonic stress period ...
openaire   +1 more source

Tectonic stress in the Earth’s crust: advances in the World Stress Map project

Geological Society, London, Special Publications, 2003
Abstract Tectonic stress is one of the fundamental data sets in Earth sciences comparable with topography, gravity, heat flow and others. The importance of stress observations for both academic research (e.g. geodynamics, plate tectonics) and applied sciences (e.g.
Sperner, B., Müller, B., Heidbach, O., Delvaux, D., Reinecker, J., Fuchs, K.   +5 more
openaire   +2 more sources

Stress measurements and tectonic implications for Fennoscandia

Tectonophysics, 1991
Abstract The main results from the Fennoscandian Rock Stress Data Base (FRSDB) are presented. Rock stress data from Sweden are now being selected to enter the data base of the World Stress Map Project of the International Lithosphere Programme. It is suggested that ridge push from the Mid-Atlantic Ridge is the major stress-generating mechanism.
O. Stephansson, C. Ljunggren, L. Jing
openaire   +1 more source

Earthquake Stress Drops, Ambient Tectonic Stresses and Stresses That Drive Plate Motions

pure and applied geophysics, 1977
A variety of geophysical observations suggests that the upper portion of the lithosphere, herein referred to as the elastic plate, has long-term material properties and frictional strength significantly greater than the lower lithosphere. If the average frictional stress along the non-ridge margin of the elastic plate is of the order of a kilobar, as ...
openaire   +1 more source