Imaging molasse and quaternary sediments in Lake Geneva, Switzerland, with 3-D high-resolution seismic reflection methods: A case study
Details
Serval ID
serval:BIB_21BC45C42E34
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Imaging molasse and quaternary sediments in Lake Geneva, Switzerland, with 3-D high-resolution seismic reflection methods: A case study
Journal
Eclogae Geologicae Helvetiae
ISSN-L
0012-9402
Publication state
Published
Issued date
2003
Peer-reviewed
Oui
Volume
96
Pages
31-38
Language
english
Notes
Beres2003b
Abstract
A high-resolution three-dimensional (3-D) seismic reflection survey
was conducted in Lake Geneva, near the city of Lausanne, Switzerland,
as part of a project for developing such seismic techniques. Using
a single 48-channel streamer, the 3-D site with an area of 1200 m
x 600 m was surveyed in 10 days. A variety of complex geologic structures
(e.g. thrusts, folds, channel-fill) up to similar to150 m below the
water bottom were obtained with a 15 in.(3) water gun. The 3-D data
allowed the construction of an accurate velocity model and the distinction
of five major seismic facies within the Lower Freshwater Molasse
(Aquitanian) and the Quaternary sedimentary units. Additionally,
the Plateau Molasse (PM) and Subalpine Molasse (SM) erosional surface,
"La Paudeze" thrust fault (PM-SM boundary) and the thickness of Quaternary
sediments were accurately delineated in 3-D.
was conducted in Lake Geneva, near the city of Lausanne, Switzerland,
as part of a project for developing such seismic techniques. Using
a single 48-channel streamer, the 3-D site with an area of 1200 m
x 600 m was surveyed in 10 days. A variety of complex geologic structures
(e.g. thrusts, folds, channel-fill) up to similar to150 m below the
water bottom were obtained with a 15 in.(3) water gun. The 3-D data
allowed the construction of an accurate velocity model and the distinction
of five major seismic facies within the Lower Freshwater Molasse
(Aquitanian) and the Quaternary sedimentary units. Additionally,
the Plateau Molasse (PM) and Subalpine Molasse (SM) erosional surface,
"La Paudeze" thrust fault (PM-SM boundary) and the thickness of Quaternary
sediments were accurately delineated in 3-D.
Keywords
high resolution, 3-D seismic reflection, seismic facies, lake, Molasse, , thrust fault, Quaternary
Create date
25/11/2013 18:31
Last modification date
20/08/2019 13:58
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