Geodynamics of Azores-Tunisia
著者
書誌事項
Geodynamics of Azores-Tunisia
（Pageoph topical volumes）
Birkhäuser Verlag, c2004
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注記
"Reprint from Pure and applied geophysics (PAGEOPH), volume 161 (2004), no. 3" -- T.p. verso
Includes bibliographical references
内容説明・目次
内容説明
The following four papers deal with the seismicity and seismotectonic of the region. Carrilho et al. present the first results of GEOALGAR, a project initiated in 2000 to monitor the seismic activity in the Algarve region (southern Portugal). In this paper results of the relocation of epicenters and determination of fault plane solutions are presented. The new epicentral locations show a more organized spatial distribution which could indicate a possible correlation with some known tectonic features. Fault plane solutions are predominantly of strike-slip motion consistent with a horizontal compression in the NW-SE to NNW-SSE direction. The paper by Yelles-Chaouche et al. presents a detailed study of the 22 December, 1999 earthquake at Ain Temouchent (northwest Algeria) of magnitude 5. 7. The earthquake caused serious damage in the town of Ain Teemouchent with 25 casualties and 25000 people left homeless. Intensity map, surface features and the focal mechanism, based on wave form analysis, are shown. The mechanism corresponds to reverse fault motion with planes striking NNE-SSW resulting from horizontal compression in the NW-SE direction. This corresponds to the general mechanism found for Algeria earthquakes. Buforn et al. present a study of the characteristics of the plate boundary between Africa and Iberia, from west of Cape San Vicente to Algeria, using seismicity and source mechanism data. The region is divided into three areas which manifest different characteristics.
目次
473 Introduction.- 477 Rapid Exhumation in the Alpine Belt of the Betic-Rif (W Mediterranean): Tectonic Extrusion.- 489 The Alpine Rif Belt (Morocco): A Case of Mountain Building in a SubductionSubduction-Transform Fault Triple Junction.- 521 Recent Tectonic Deformations and Stresses in the Frontal Part of the Rif Cordillera and the Saiss Basin (Fes and Rabat Regions, Morocco).- 541 Recent Tectonic Structures in a Transect of the Central Betic Cordillera.- 565 Neogene Through Quaternary Tectonic Reactivation of SW Iberian Passive Margin.- 589 GEOALGAR Project: First Results on Seismicity and Fault-plane Solutions.- 607 The Ain Temouchent (Algeria) Earthquake of December 22nd, 1999.- 623 Seismic Sources on the Iberia-African Plate Boundary and their Tectonic Implications.- 647 Calibration of Local Magnitude ML in the Azores Archipelago Based on Recent Digital Recordings.- 661 Geodetic Measurements of Crustal Deformation in the Western Mediterranean and Europe.- 683 Recent Geodetic Results in the Azores Triple Junction Region.- 701 New Palaeomagnetic Data from the Betic Cordillera: Constraints on the Timing and the Geographical Distribution of Tectonic Rotations in Southern Spain.
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