Results 181 to 190 of about 2,314 (228)
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Late Quaternary sedimentation in the Strait of Bosporus: High-resolution seismic profiling
Marine Geology, 1989Abstract Uniboom profiling supported by borehole data in the southern part of the Bosporus revealed that close to its banks Holocene sediments are underlain by the faulted slopes of a valley cut in many places into the Palaeozoic bedrock. Away from the banks the sediments thicken and their boundary with the underlying Pleistocene deposits is defined ...
OKYAR, Mahmut, ALAVI, SN, TIMUR, K
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High-Resolution Reflection Seismics at the Bavarian Part of the TRANSALP Profile
63rd EAGE Conference & Exhibition, 2001P157 HIGH-RESOLUTION REFLECTION SEISMICS AT THE BAVARIAN PART OF THE TRANSALP PROFILE R. THOMAS 1 K. BRAM 1 J. FERTIG 2 and K. SCHWERD 3 Introduction 1 The east-alpine reflection seismic traverse (TRANSALP) is a multi-disciplinary and international research program for investigating orogenic processes by continent-continent collisions focusing on the ...
R. Thomas +3 more
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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, 2009The 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
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High Resolution Seismic Reflection Profiling At Aberdeen Proving Grounds, Maryland
9th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 1996The effectiveness of shallow high resolution ‘seismic reflection (i.e., resolution potential) to image geologic interfaces between about 70 and 750 ft at the Aberdeen Proving Grounds, Maryland (APG), appears to vary locally with the geometric complexity of the unconsolidated sediments that overlay crystalline bedrock.
Richard D. Miller +4 more
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High-Resolution Marine Seismic Profiling: ABSTRACT
AAPG Bulletin, 1973A 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
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High resolution seismic profiles from Lake Malawi, Africa
Journal of African Earth Sciences (and the Middle East), 1989Abstract Over 5000 km of high resolution seismic (HRS) profiles have been obtained from Lake Malawi. These can be classified as Type I, II or III, depending on whether the lake floor reflector is weak, intermediate or strong, respectively. Type I profiles typically have thick, acoustically transparent sediment and are most widespread in the offshore ...
Thomas C. Johnson, Thomas W. Davis
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Pushing the Limits of High-Resolution in Marine Seismic Profiling
Journal of Environmental & Engineering Geophysics, 2000It has become commonplace to record high-resolution marine seismic profiles in digital format and to base the choice of sampling rate on the traditional assumption that seismic signals are of limited bandwidth. The truth is that seismic signals are causal and the Heisenberg uncertainty principle prohibits causal signals being bandlimited.
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High-resolution seismic profiling with a low-frequency parametric array
The Journal of the Acoustical Society of America, 1984The 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
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Source Heave Compensation for High Resolution Marine Seismic Profiling
OCEANS '80, 1980In this paper several compensation schemes for removal of acoustic source heave affects from the seismic echo signal are described and examined. A new compensation method is proposed, in which heave distortion is continuously corrected, irrespective of towing height.
A. Zielinski, W. Vetter
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High resolution seismic stratigraphy: a new approach showing new possibilities of seismic profiling
54th EAEG Meeting, 1992Seismic 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
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