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High Resolution Seismic Profiling for Tunnel Engineering at Olkiluoto, Finland

Near Surface 2009 - 15th EAGE European Meeting of Environmental and Engineering Geophysics, 2009
The ONKALO tunnel is the underground rock characterisation facility being built for rock characterisation for the final disposal of spent nuclear fuel at Olkiluoto, in Finland. The bedrock is studied, during the construction phase, by geology, geophysics, hydro-geology and geochemistry and rock mechanics.
C. Cosma   +3 more
openaire   +1 more source

High-Resolution Marine Seismic Profiling: ABSTRACT

AAPG Bulletin, 1973
A small seismic system (Mini-Sparker) has been developed to use frequencies in the 200-2,000 Hz band for highly detailed marine profiling. Reflections down to 500- to 800-ft depths are recorded in clastic sediments, with resolution of 6-8 ft. The Mini-Sparker profile is recorded as a single channel on facsimile paper. The equipment is man-portable, and
openaire   +1 more source

High resolution seismic stratigraphy: a new approach showing new possibilities of seismic profiling

54th EAEG Meeting, 1992
Seismic sequences analysis elaborated by the US scientists (P. Vail et al) has been promoted in many countries . In the Russian Federation this analysis is widely applied. In this presentation we shall discuss some results of theoretical and practical investigations .
N. Ya. Kunin, A. G. Budagov
openaire   +1 more source

High-resolution marine seismic reflection profiling: Systems and capabilities

The Journal of the Acoustical Society of America, 2007
Seismic reflection profiling is the most effective and commonly used geophysical tool for sub-seafloor geologic investigations. A broad variety of seismic data acquisition systems are available, depending on the imaging depth and resolution required. High-resolution methods utilize controlled sound sources that generate signals in the frequency range ...
openaire   +1 more source

High-resolution seismic profiling with a low-frequency parametric array

The Journal of the Acoustical Society of America, 1984
The application of nonlinear acoustics to seismic profiling, exploration, and sedimentary geophysics has long been recognized as having great potential, due to the unique opportunities for high resolution measurements. These measurements, in turn, open new avenues for theoretical developments in areas of sediment characterization and acoustic modeling ...
T. G. Muir, R. J. Wyber
openaire   +1 more source

A SIMPLE APPROACH TO HIGH RESOLUTION SEISMIC PROFILING FOR COAL*

Geophysical Prospecting, 1979
AbstractSeismic exploration techniques which have been developed for oil prospecting contribute a valuable means for surveying coal measures. Since the object is to detect minor faults within the first 1500 m, rather than structural features at great depth, the new technique requires much higher resolution in the early part of the traditional seismic ...
A. ZIOLKOWSKI, W. E. LERWILL
openaire   +1 more source

High resolution velocity/depth spectra estimation for seismic profiling

Ocean '74 - IEEE International Conference on Engineering in the Ocean Environment, 1974
High resolution methods such as the so called maximum likelihood or maximum entropy procedures have found extensive use in spectral analysis and array processing. In all of these applications the spectral signals have been sinusoids or planewaves respectively.
openaire   +1 more source

Geophysical interpretation of a high‐resolution seismic refraction profile in the Northern Apennines

Terra Nova, 1994
ABSTRACTA combined seismic and gravimetric interpretation in the Northern Apennines area (Italy) is presented. To the knowledge of the authors, this is one of the few attempts to apply tomographic methodology to a seismic refraction profile. This procedure, together with the classical interpretation for defining lower reflectors, led to the formulation
BARZAGHI, RICCARDO   +5 more
openaire   +5 more sources

A simple deep-towed vertical array for high-resolution reflection seismic profiling

Deep Sea Research Part B. Oceanographic Literature Review, 1986
A simple, low cost, deep-towed system for high-resolution reflection seismic profiling is described. It consists of a vertical array with two hydrophones having a separation of 2.2 m and rigidly mounted onto streamlined tow bodies. Improvement of the signal-to-noise ratio is attained by simple stacking of the hydrophone outputs after signal ...
R. Herber   +3 more
openaire   +2 more sources

Mapping the geometry of an aquifer system with a high‐resolution reflection seismic profile

Geophysical Prospecting, 2005
ABSTRACTA 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.
FRANCESE R   +3 more
openaire   +3 more sources

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