ALPASS - Alpine Lithosphere and Upper Mantle Passive Seismic Monitoring

Project Management: Prof. Dr. Ewald BRÜCKL, Institute of Geodesy and Geophysics, Vienna University of Technology
Duration: 4 years (beginning 2004)


Abstract
ALPASS is a passive seismic monitoring experiment that concentrates on the Alpine lithosphere and upper mantle east of 13°E. ALPASS builds on the results of the controlled source seismic refraction and wide angle reflection experiments CELEBRATION 2000 and ALP 2002 ( http://www.alp2002.info/ ). Among the scientific goals of ALPASS is the generation of a tomographic image of the structure of the upper mantle, the lower lithosphere, and the asthenosphere. By this method lithospheric slabs in the upper mantle will be delineated and decision about direction(s) of subduction will be possible. Receiver function analysis will resolve the upper mantel discontinuities and the Moho. Information about Poisson's ratio will also come from this analysis. Active faults will be delineated and described by the relocation of local earthquakes and moment tensor determinations.

ALPASS started in 2005 by systematically collecting seismic waveforms from 110 stations of permanent networks in A, CH, CZ, D, H, HR, I, PL, SK, SLO, YU. A temporal seismic network began its operation in May 2005. In a first step 57 seismic stations equipped with 3 component sensors (partly broadband) were deployed in A and SLO. An extension to SE (ALPASS-DIP) followed by the deployment of 24 stations in H and HR. The temporary network is carried out by an international cooperation of scientific institutions from FIN (Universities of Oulu and Helsinki), H (ELGI Budapest), HR (University of Zagreb), PL (Polish Academy of Sciences, University of Warsaw), and the USA (University of Texas at El Paso). The temporal network will operate at least until April 2006. ALPASS has been designed to build on earlier passive seismic monitoring experiments in the west (TRANSALP) and to fit contemporaneous and future experiments in the north (BOHEMA) and south-east (Carpathian Basin Project). For more information about ALPASS visit http://info.tuwien.ac.at/geophysik/research/alpdynamics/alpass2004.htm .


Contact:
Prof. Dr. Ewald Brückl
Institute of Geodesy and Geophysics
Vienna University of Technology
Gusshausstraße 27-29, 1040 Vienna
T +43 1 58801-12820
F +43 1 58801-12892
ebrueckl@luna.tuwien.ac.at

Mass movements: development of geophysical methods

Project Management: Prof. Dr. Karl MILLAHN, Department of Applied Geological Sciences and Geophysics, University of Leoben
Duration: 4 years (beginning 2004)

Contact:
Prof. Dr. Karl Millahn
Department of Applied Geological Sciences and Geophysics
University of Leoben
Peter Tunner-Straße 27, 8700 Leoben
karl.millahn@notes.unileoben.ac.at

Geothermal Modelling in the Eastern Alps Region

Project Management: Mag. Klaus MOTSCHKA, Geological Survey of Austria
Duration: 4 years (beginning 2004)


Abstract

Three dimensional geothermal models of parts of the Eastern Alps should be achieved by knowing the temperature field of the earth in different depths together with appropriate geological models. These models will take regional groundwater flows into consideration. In the course of this project all necessary input data will be gained and potential target areas for modelling will be defined. At the end of the project the results will be stored in a GIS-compatibel database and published in geothermal maps.


Contact:
Mag. Klaus Motschka
Geological Survey of Austria
Neulinggasse 38, 1031 Vienna
T +43 1 7125674-375
F +43 1 7125674-57
motkla@geolba.ac.at