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  • 1
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    The application of homomorphic deconvolution to shallow-water marine seismology (1974)
    In:  Geophysics, Leyden, Noordhoff International Publishing, vol. 39, no. 3, pp. 401-426, pp. B04306, (ISSN: 1340-4202)
    Details
    Publication Date: 1974
    Keywords: Deconvolution
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    Direct mapping of seismic data to the domain of intercept time and ray parameter - a plane-wave decomposition (1981)
    In:  Geophysics, Leyden, Noordhoff International Publishing, vol. 46, no. 3, pp. 255-267, pp. B04306, (ISSN: 1340-4202)
    Details
    Publication Date: 1981
    Description: Pwd anhand von mariner Seismik. Angesprochen werden das Aliasing Problem, plane wave response und eine Geschwindigkeits-Inversion.
    Keywords: Seismics (controlled source seismology) ; Waves ; RAY ; Radon transform ; Plane waves ; p-tau method ; pwd ; slant ; stack ; MARTIN
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    Seismic modeling in the domain of intercept time and ray parameter (1982)
    In:  IEEE Transactions on Acoustics, Speech and Signal Processing, Kunming, China, D. Reidel Publishing Company, vol. ASSP-30, no. 3, pp. 406-422, pp. L09303, (ISSN: 1340-4202)
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    Publication Date: 1982
    Keywords: Radon transform ; Plane waves ; Semblance
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    BIBLIOGRAPHY SEISMOLOGY
  • 4
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    Seismic Images of Active Magma Systems Beneath the East Pacific Rise Between 17{degrees}05' and 17{degrees}35'S (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1995-04-21
    Description: Seismic reflection data from the East Pacific Rise between 17 degrees 05' and 17 degrees 35'S image a magma lens that varies regularly in depth and width as ridge morphology changes, confirming the notion that axial morphology can be used to infer ridge magmatic state. However, at 17 degrees 26'S, where the ridge is locally shallow and broad, the magma lens is markedly shallower and wider than predicted from regional trends. In this area, submersible dives reveal recent volcanic eruptions. These observations indicate that it is where the width and depth of the magma chamber differ from regional trends, indicating an enhanced magmatic budget, that is diagnostic of current magmatism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mutter, J C -- Carbotte, S M -- Su, W -- Xu, L -- Buhl, P -- Detrick, R S -- Kent, G M -- Orcutt, J A -- Harding, A J -- New York, N.Y. -- Science. 1995 Apr 21;268(5209):391-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17746545" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    PAPER CURRENT
  • 5
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    Seismic structure of the southern East pacific rise (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-01-22
    Description: Seismic data from the ultrafast-spreading (150 to 162 millimeters per year) southern East Pacific Rise show that the rise axis is underlain by a thin (less than 200 meters thick) extrusive volcanic layer (seismic layer 2A) that thickens rapidly off axis. Also beneath the rise axis is a narrow (less than 1 kilometer wide) melt sill that is in some places less than 1000 meters below the sea floor. The small dimensions of this molten body indicate that magma chamber size does not depend strongly on spreading rate as predicted by many ridge-crest thermal models. However, the shallow depth of this body is consistent with an inverse correlation between magma chamber depth and spreading rate. These observations indicate that the paradigm of ridge crest magma chambers as small, sill-like, midcrustal bodies is applicable to a wide range of intermediate- and fast-spreading ridges.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Detrick, R S -- Harding, A J -- Kent, G M -- Orcutt, J A -- Mutter, J C -- Buhl, P -- New York, N.Y. -- Science. 1993 Jan 22;259(5094):499-503.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17734170" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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    PAPER CURRENT
  • 6
    Electronic Resource
    Electronic Resource
    Moho and lower crustal reflectivity beneath a young rift basin: results from a two-ship, wide-aperture seismic-reflection experiment in the Valencia Trough (western Mediterranean) (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 118 (1994), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: We present new images of the lower crust and Moho beneath the Valencia Trough—a young rift basin in the western Mediterranean. These images were obtained from a two-ship, wide-aperture reflection experiment and show several features not distinguishable on previously available conventional single-ship reflection profiles.The Moho, which was previously only seen intermittently, can now be confidently traced throughout the basin. We have constructed a present-day depth-to-Moho map and estimated the degree of crustal thinning for the whole basin. Crustal thinning is at a maximum in the centre of the basin, where β values reach 3.15 ± 0.25. At the margins of the basin the β value decreases to 1.5 ± 0.1.The reflective character of the lower crust and Moho is different beneath different parts of the basin. We have been able to correlate these differences with the amount of stretching. We therefore interpret the variations of the observed lower crustal reflectivity as having been caused by the most recent (Neogene) stretching event that opened the Valencia Trough. Along the Iberian margin there is well-developed lower crustal reflectivity consisting of 1-2s two-way time (TWT) of 1-4 km long, near-horizontal reflectors underlain by a more continuous, although not significantly stronger, reflector interpreted to be the reflection Moho. Offshore, this lower crustal reflective unit thins rapidly, such that it is undetectable 40-50 km from the coastline where the crust has been stretched by a factor of 1.7 ± 0.1. As the lower crustal reflectivity becomes undetectable the reflection Moho becomes a robust, continuous event. Where β exceeds 2.4 ± 0.2, however, the Moho is a weak event and difficult to trace. We infer that either the extension itself or associated melting significantly weakened or even destroyed the lower crustal reflectivity in the centre of the basin and enhanced the Moho where extension was moderate.The Balearic margin is somewhat anomalous in that there appears to have been flexural loading of the crust due to thrusting and folding that occurred at the same time as extension in the Valencia Trough. The lower crust shows evidence of weak, but locally variable lower crustal reflectivity. It is possible that the lower crustal reflectivity was preserved simply because the Moho was flexed downward and so decompression, and hence melting, of the upper mantle was restricted. This suggests that the melting itself rather than the extension is the primary mechanism of lower crustal modification.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1994.tb04681.x
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  • 7
    Electronic Resource
    Electronic Resource
    VELOCITY ANALYSIS FOR WIDE APERTURE SEISMIC DATA (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical prospecting 30 (1982), S. 0 
    Details
    ISSN: 1365-2478
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences , Physics
    Notes: Common midpoint data are now being collected with ever increasing source-receiver offsets. For wide aperture seismic data classical methods of interpretation fail, since velocity analyses and signal-to-noise enhancement methods based on hyperbolic traveltime curves are no longer appropriate. Therefore, the goals of increased velocity resolution and signal enhancement, which motivate the increase in offset, are not achieved. Approximate methods, involving higher order traveltime curves or extrapolations, have been developed for velocity analysis but these are ineffective in the presence of refracted arrivals, and lack a physical basis. These problems can be minimized by transforming the observational data to the domain of intercept or vertical delay time τ and horizontal ray parameter p. In this domain headwave refractions are collapsed into points and both near vertical and wide angle reflections can be analyzed simultaneously to derive velocity-depth information, even in the presence of velocity gradients or low velocity zones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2478.1982.tb00412.x
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  • 8
    Electronic Resource
    Electronic Resource
    Sub-B'' layering in the Southern Caribbean: The Aruba Gap and Venezuela Basin
    Amsterdam : Elsevier
    Earth and Planetary Science Letters 53 (1981), S. 131-146 
    Details
    ISSN: 0012-821X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0012-821X(81)90149-7
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  • 9
    Electronic Resource
    Electronic Resource
    Multi-channel seismic imaging of a crustal magma chamber along the East Pacific Rise (1987)
    [s.l.] : Nature Publishing Group
    Nature 326 (1987), S. 35-41 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A reflection observed on multi-channel seismic profiles along and across the East Pacific Rise between 8°50′ N and 13°30′ N is interpreted to arise from the top of a crustal magma chamber located 1.2–2.4 km below the sea floor. The magma chamber is quite narrow (〈4 ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/326035a0
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  • 10
    Electronic Resource
    Electronic Resource
    A multichannel seismic study of lithospheric flexure across the Hawaiian–Emperor seamount chain (1985)
    [s.l.] : Nature Publishing Group
    Nature 315 (1985), S. 105-111 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Existing models assume that the thickened crust beneath seamounts is the result of a surface volcanic load flexing an elastic plate. New results suggest that flexed oceanic crust beneath the Hawaiian–Emperor seamount chain is underlain by a 4-km thick deep crustal body. We intepret the body ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/315105a0
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