Kluftmessungen im Gelände und ihre Bedeutung für die Bestimmung des tektonischen Spannungsfeldes in der Schweiz
An intensive program of measurements of the orientation of joints in the field in Switzerland was undertaken in the Cantons of Graubünden, St. Gallen, Schwyz, Uri, Zürich, Zug, Aargau and Berne. For every «region», comprising 2–8 outcrops, the average orientation of the joint-parallelepipe...
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| Format: | Article |
| Language: | deu |
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Copernicus Publications
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| Series: | Geographica Helvetica |
| Online Access: | http://www.geogr-helv.net/32/121/1977/gh-32-121-1977.pdf |
| _version_ | 1818061955475177472 |
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| author | Adrian E. Scheidegger |
| author_facet | Adrian E. Scheidegger |
| author_sort | Adrian E. Scheidegger |
| collection | DOAJ |
| description | An intensive program of measurements of the orientation
of joints in the field in Switzerland was
undertaken in the Cantons of Graubünden, St. Gallen, Schwyz, Uri, Zürich, Zug, Aargau and Berne.
For every «region», comprising 2–8 outcrops, the
average orientation of the joint-parallelepiped was
calculated by means of an electronic Computer based
on a function-minimization program. If it is assumed
that the steeply-dipping Joint surfaces have been produced by the present-day triaxial stress field according
to the Mohr-Anderson theory of faulting, the
orientation of the latter can be calculated. Thus, the
net of present-day stress trajectories for Switzerland
can be drawn. It turns out that the average orientation of the greatest compression in the region investigated
is N 60<sup>°</sup>W. This agrees well with in-situ stress
determinations by Gysel in the Sonnenbergtunnel
near Lucerne (N 76.5<sup>°</sup>W) and by Greiner in southern
Germany (N 28<sup>°</sup>–50<sup>°</sup>W). Converseiy, the hypothesis
that most joints visible on fresh outcrops are due to
the present-day tectonic Stresses and that the latter
is homogeneous over extended areas, is thereby confirmed. |
| first_indexed | 2024-12-10T13:56:32Z |
| format | Article |
| id | doaj.art-bfb85619f41340be932520db0f363a41 |
| institution | Directory Open Access Journal |
| issn | 0016-7312 2194-8798 |
| language | deu |
| last_indexed | 2024-12-10T13:56:32Z |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Geographica Helvetica |
| spelling | doaj.art-bfb85619f41340be932520db0f363a412022-12-22T01:45:57ZdeuCopernicus PublicationsGeographica Helvetica0016-73122194-879832312113410.5194/gh-32-121-1977Kluftmessungen im Gelände und ihre Bedeutung für die Bestimmung des tektonischen Spannungsfeldes in der SchweizAdrian E. Scheidegger0Technische Universität Wien, Institut für Geophysik, Gußhausstraße 27-29, 1040 Wien, AustriaAn intensive program of measurements of the orientation of joints in the field in Switzerland was undertaken in the Cantons of Graubünden, St. Gallen, Schwyz, Uri, Zürich, Zug, Aargau and Berne. For every «region», comprising 2–8 outcrops, the average orientation of the joint-parallelepiped was calculated by means of an electronic Computer based on a function-minimization program. If it is assumed that the steeply-dipping Joint surfaces have been produced by the present-day triaxial stress field according to the Mohr-Anderson theory of faulting, the orientation of the latter can be calculated. Thus, the net of present-day stress trajectories for Switzerland can be drawn. It turns out that the average orientation of the greatest compression in the region investigated is N 60<sup>°</sup>W. This agrees well with in-situ stress determinations by Gysel in the Sonnenbergtunnel near Lucerne (N 76.5<sup>°</sup>W) and by Greiner in southern Germany (N 28<sup>°</sup>–50<sup>°</sup>W). Converseiy, the hypothesis that most joints visible on fresh outcrops are due to the present-day tectonic Stresses and that the latter is homogeneous over extended areas, is thereby confirmed.http://www.geogr-helv.net/32/121/1977/gh-32-121-1977.pdf |
| spellingShingle | Adrian E. Scheidegger Kluftmessungen im Gelände und ihre Bedeutung für die Bestimmung des tektonischen Spannungsfeldes in der Schweiz Geographica Helvetica |
| title | Kluftmessungen im Gelände und ihre Bedeutung für die Bestimmung des tektonischen Spannungsfeldes in der Schweiz |
| title_full | Kluftmessungen im Gelände und ihre Bedeutung für die Bestimmung des tektonischen Spannungsfeldes in der Schweiz |
| title_fullStr | Kluftmessungen im Gelände und ihre Bedeutung für die Bestimmung des tektonischen Spannungsfeldes in der Schweiz |
| title_full_unstemmed | Kluftmessungen im Gelände und ihre Bedeutung für die Bestimmung des tektonischen Spannungsfeldes in der Schweiz |
| title_short | Kluftmessungen im Gelände und ihre Bedeutung für die Bestimmung des tektonischen Spannungsfeldes in der Schweiz |
| title_sort | kluftmessungen im gelande und ihre bedeutung fur die bestimmung des tektonischen spannungsfeldes in der schweiz |
| url | http://www.geogr-helv.net/32/121/1977/gh-32-121-1977.pdf |
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