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- Volume 11, Issue 12, 1993
First Break - Volume 11, Issue 12, 1993
Volume 11, Issue 12, 1993
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New information arising from recent oil and gas exploration in the West Carpathians of eastern Slovakia
Authors T. Koráb, M. Král, M. Pereszlénvs, D. Vass and D. WunderThe West Carpathian territory extends from southwestern Slovakia through eastern Moravia to southern Poland. It is subdivided from its exterior to interior as follows: the Carpathian foredeep (a foreland basin), the Flysch Belt (a clastic accretionary prism), the Klippen Belt (a peculiar, narrow, extremely tectonically compressed belt, a remnant of the Pieniny ocean), the Central Carpathians (a complex area formed by several ocean-forming, passive margin and subduction processes amalgamated by Late Cretaceous tectonic movements), and the Central or Inner Carpathian Palaeogene and Neogene basins, which are in fore-arc and back-arc positions, accompanied by calc-alkaline volcanics, although only part of them can be considered as a volcanic arc.
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The CEC Geoscience programme - a multidisciplinary targeted programme in exploration R&D (1990-1993)
Authors J.M. Bemtgen and F. RoccaThe integration of seismic exploration methods and geological understanding is a general theme of research in the geosciences. Several projects already proposed to the Commission of the European Communities (CEC) addressing this topic have been coordinated into a single programme-the GEOSCIENCE Programme. This coordination had several benefits and some costs. The interdisciplinary interaction of participants from different European nations is beneficial: it allows diffusion of scientific information and efficiency, and mutual control to avoid duplication of efforts; it also improves quality of research. However, contracts are more complex and the overheads for meetings and trips are higher. This first experience indicates that the benefits outweigh the costs.
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An approach to optimum slant stack; its application as a seismic noise attenuator
More LessThe concept of stacking, data together to form a trace with a signal to noise ratio (S/N) which is better than that of the individual contributors to the stack is not new, and now forms a key step in most seismic processing sequences, namely CDP stack. While not specifically for geophysical applications, Brennan (1955) showed that there is a universal method for computation of stack S/N and indicated how the S/N of the stacked trace could be maximized (the optimum stack). Brennan's method involved sealing of the input data, by application of weights, and he showed how the contributing traces should be weighted in order to achieve optimum stack.
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Volumes & issues
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Volume 42 (2024)
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Volume 41 (2023)
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Volume 40 (2022)
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Volume 39 (2021)
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Volume 38 (2020)
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Volume 37 (2019)
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Volume 36 (2018)
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Volume 35 (2017)
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Volume 34 (2016)
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Volume 33 (2015)
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Volume 32 (2014)
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Volume 31 (2013)
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Volume 30 (2012)
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Volume 29 (2011)
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Volume 28 (2010)
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Volume 27 (2009)
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Volume 26 (2008)
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Volume 25 (2007)
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Volume 24 (2006)
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Volume 23 (2005)
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Volume 22 (2004)
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Volume 21 (2003)
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Volume 20 (2002)
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Volume 19 (2001)
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Volume 18 (2000)
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Volume 17 (1999)
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Volume 16 (1998)
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Volume 15 (1997)
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Volume 14 (1996)
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Volume 13 (1995)
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Volume 12 (1994)
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Volume 11 (1993)
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Volume 10 (1992)
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Volume 9 (1991)
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Volume 8 (1990)
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Volume 7 (1989)
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Volume 6 (1988)
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Volume 5 (1987)
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Volume 4 (1986)
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Volume 3 (1985)
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Volume 2 (1984)
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Volume 1 (1983)