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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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1

Microseismic event location and passive seismic imaging of crustal structures

Hassani, Hossein 08 August 2019 (has links)
This research is aimed to develop a migration-based earthquake location algorithm and a passive seismic imaging approach to investigate microseismicity and image steep crustal structures in the mining area Schlema-Alberoda. The dataset includes single-component records of several microseismic events which occurred between 1998 and 2012 in the area. Through some tests and comparisons, the accuracy of the localization algorithm is proved. An expected extension of pre-existing faults within the granitic body and the connection between some of the structures is comfirmed by the location results. The passive imaging procedure is conducted using only P-wave secondary arrivals from the relocated events and by applying 3-D coherency migration. The reliability of the passive imaging results is verified by comparing the final image with the results of a 3-D active reflection seismic survey in the same area. In addition, the passive image complements the 3-D active image and reveals new structures that have not been imaged previously.
Microseismicity, Passive Seismic Imaging
Mikroseismizität
info:eu-repo/classification/ddc/550
ddc:550
Erzgebirge
Erdbebenbelastung
Induzierte Seismizität
Kristallin
Messstellennetz
Mikroseismik
Erzgebirge <West>
Schlema
Erdkruste
Geologie
Kristallines Gestein
Granit
Tektonik
Seismologie
2

Deutsch-polnisches Tagebaumessnetz: Auswertung der gemeinsamen Grundwasserspiegelmessungen im deutsch-polnischen Tagebaumessnetz (Turów/Zittau/Olbersdorf, Berzdorf und Nochten/Reichwalde): Monitoringbericht 2019/2020

Uhlmann, Wilfried, Pezenka, Carolin, Seher, Wiebke 21 October 2022 (has links)
Der Bericht bereitet die Messungen des Grundwasserstandes bis 2020 im Deutsch-Polnischen Tagebaumessnetz entlang der Lausitzer Neiße umfassend auf. Die Einflussfaktoren auf die Grundwasserstände werden unter besonderer Berücksichtigung des Braunkohlebergbaues diskutiert und bewertet. Die Ergebnisse sind für die breite Öffentlichkeit sowie für Fachnutzer aus Landesplanung und Wasserwirtschaft aufbereitet. Redaktionsschluss: 13.09.2022
info:eu-repo/classification/ddc/333.7
ddc:333.7
info:eu-repo/classification/ddc/550
ddc:550

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