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Mapping the geometry of an aquifer system with a high‐resolution reflection seismic profile
Author(s) -
Francese Roberto,
Giudici Mauro,
Schmitt Douglas R.,
Zaja Annalisa
Publication year - 2005
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1111/j.1365-2478.2005.00506.x
Subject(s) - geology , borehole , seismology , economic geology , regional geology , reflection (computer programming) , stratigraphy , synthetic seismogram , engineering geology , attenuation , infill , seismic to simulation , environmental geology , aquifer , seismic noise , vertical seismic profile , inversion (geology) , seismic inversion , paleontology , tectonics , geometry , geotechnical engineering , volcanism , optics , ecology , groundwater , physics , mathematics , azimuth , biology , computer science , programming language
A high‐resolution P‐wave seismic reflection survey was conducted in the area of Lambro Park within the city of Milan (northern Italy). Several high permeability channel sequences were identified and the stratigraphy of the infill was accurately mapped. The seismic signature imaged a previously undefined unit and also established the lateral correlation of some depositional units within the three major aquifer groups along the survey line. The complexity of the acoustic framework and the reduced depth of the source location limited effective elastic‐wave generation. The geological setting also caused propagation of strong coherent noise patterns. Further interference, observed in the recorded data, was due to the traffic noise from the nearby highway. The attenuation of the undesired events required the design of specific filters and their multistep implementation. The results of forward modelling based on borehole information and of noise tests were crucial factors in the design of the processing parameters and in the stratigraphic interpretation of the final stacked section.