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Fluvial seismic geomorphology: a view from the surface
Geological Society, London, Special Publications, 2007Abstract Three-dimensional seismic data enable geoscientists to image the stratigraphic record along selected stratal or time slices. These slices provide detailed images of the planform geometry of ancient depositional systems and environments.
F. G. Ethridge, S. A. Schumm
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Geomorphologically-controlled seismic signals at Mount St. Helens volcano
2021<p>In volcanoes, topography and shallow morphology can substantially modify seismic signals, tracing anisotropic signatures in the crust's most surficial layers. To better understand the influence of key morphologies, forward modelling of the seismic waveforms is fundamental.&#160; Here, we introduce a forward model of the seismic
Luca De Siena +2 more
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Geomorphological controls on seismic recordings in volcanic areas
2020<p>In volcanoes, topography, shallow heterogeneity, and even shallow morphology can substantially modify seismic coda signals. Coda waves are an essential tool to monitor eruption dynamics and model volcanic structures jointly and independently from velocity anomalies: it is thus fundamental to test their spatial sensitivity to ...
Simona Gabrielli +2 more
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Seismic Attributes and Their Applications in Seismic Geomorphology
2013Bulletin of Earth Sciences of Thailand (BEST), 6, 1, 9 ...
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Seismic geomorphology of a salt‐controlled deltaic depositional system
SEG Technical Program Expanded Abstracts 2007, 2007For the past decade, volumetric seismic attributes have been used to help define depositional systems (Nissen et al., 1999, Posamentier, 2003). Seismic attributes provide the geometry of paleo-environments, particularly in settings where there is a sharp contrast in the geometry of adjacent systems, for instance in channel belts and associated systems.
Oyetayo M. Akintokunbo, Kurt J. Marfurt
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Seismic imaging for seismic geomorphology beyond the seabed: potentials and challenges
Geological Society, London, Special Publications, 2007Abstract A successful study of seismic geomorphology depends not only on knowledge of sedimentological, geomorphological principles and the local geological setting, but also on quality of the seismic geomorphological imaging. A thorough understanding of how seismic waves respond to geomorphology of depositional sequences and facies is ...
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Geomorphology – Understanding the Near-surface Impact on Seismic Data
71st EAGE Conference and Exhibition - Workshops and Fieldtrips, 2009Surface seismic data are significantly affected by the properties of the near-surface strata. We propose to integrate information extracted from geomorphology into the seismic processing workflow. Topography classification of the elevation and lithology information of satellite imagery allows mapping formation tops, which in turn, provide the basis for
A. Laake, A. Zaghloul, C. Strobbia
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Buried Ice-Scours: 2D vs 3D-Seismic Geomorphology
1997Subaqueous ice-scours are mainly known as surficial phenomena, formed by floating or glacier ice, acoustically imaged using sidescan sonar. Buried ice-scours have seldom been recognised in the geological record. Here, a reconstruction of the plan form of buried scours from seismic profiles [Hovland and Judd, 1988] is contrasted with the ready access to
David Long, Daniel Praeg
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Glacial seismic geomorphology offshore northwest Europe
Plio-Pleistocene records of ice-rafted detritus suggest that northwest European ice sheets regularly advanced across palaeo-coastlines. However, while these records are important, they provide only a limited insight on the frequency, extent, and dynamics of the ice sheets that were delivering the detritus.Andrew Newton +9 more
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Proceedings, 2014
The application of seismic stratigraphy and geomorphology hinges on the identification of reflection patterns, and consequently the interpreter’s ability to leverage those patterns to predict suburface lithology. Predicting lithology prior to drilling centers on seismic pattern recognition, a process that involves the iterative interpretation of ...
H.W. Posamentier +4 more
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The application of seismic stratigraphy and geomorphology hinges on the identification of reflection patterns, and consequently the interpreter’s ability to leverage those patterns to predict suburface lithology. Predicting lithology prior to drilling centers on seismic pattern recognition, a process that involves the iterative interpretation of ...
H.W. Posamentier +4 more
openaire +1 more source