|
|||||
|
|
Absolute gravity measurements in Switzerland: Definition of a base network for geodynamic investigations and for the Swiss fundamental gravity net |
|
| Authors: | I Marson H -G Kahle F Chaperon St Mueller F Alasia |
| Institution: | 1. Istituto di Miniere e Geofisica Applicata, Università degli studi di Trieste, Facoltà di Ingegneria, Viale R. Gessi 4, I-34123, Trieste, Italia 2. Institut für Geod?sie und Photogrammetrie, ETH-H?nggerberg, CH-8093, Zürich, Switzerland 3. Institut für Geophysik, ETH-H?nggerberg, CH-8093, Zürich, Switzerland 4. Istituto di Metrologia, G. Colonnetti, Strada delle Cacce 73, I-10135, Torino |
| Abstract: | Summary Results of two absolute gravity surveys performed in Switzerland between 1978 and 1979 are presented and discussed in the framework of the uplift history of the Swiss Alps. Five absolute stations have been established as a contribution to the Swiss fundamental gravity net as well as to geodynamic investigations on the Alpine uplift. Two sites (Interlaken—Jungfraujoch) form the end points of a calibration line for field gravimeters. The gravity range of this line amounts to 605×10−5 ms−2 (=605 mgal). It can be traversed in a relatively short time interval of less than 3 hours. Two other sites (Brig and Chur) are located in the area of the most negative gravity anomalies and highest uplift rates encountered in Switzerland. They serve as reference stations for a more extended gravity net for studying non—periodic secular gravity variations associated with the Alpine uplift. Institut für Geod?sie und Photogrammetrie, ETH-Zürich, Separata No. 13. Institut für Geophysik, ETH-Zürich, Contribution No. 333. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |