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Z-trend maps for quick recognition of geologic patterns

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Abstract

Z-trend maps are a simplified lineprinter version of spatially filtered maps designed to give a quick visual appraisal of trends. The printout shows a “yes-no” configuration by a printed character or a blank so that the map has a conspicuous pattern. This pattern reflects the presence, position, and trend of the desired features. If a reasonable symbol density ratio is used the results can be visually pleasing thus enhancing trend recognition. Z-trending can be adapted to any map with stationary properties but is most easily applied to data that have been filtered with a bandpass operator.

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References

  • Cole, V. B., 1962, Configuration of top of Precambrian basement rocks in Kansas: Kansas Geol. Survey Oil and Gas Invest. No. 26, map.

  • Harbaugh, J. W., and Merriam, D. F., 1968, Computer applications in stratigraphic analysis: John Wiley & Sons, Inc., New York, 282 p.

    Google Scholar 

  • Horton, C. W., Hempkins, W. B., and Hoffman, A. A. J., 1964, A statistical analysis of some aeromagnetic maps from the northwestern Canadian shield: Geophysics, v. 29, no. 4, p. 582–601.

    Article  Google Scholar 

  • Merriam, D. F., and Robinson, J. E., 1970, Trend analysis in geologic and geophysical exploration,in Symposium on mathematical methods in geology and geophysics: Hornicka Pribram ve vede a Technice, 41 p.

  • Parkhurst, R. W., 1959, Surface to subsurface correlations and oil entrapment in the Lansing and Kansas City Groups (Pennsylvanian) in northwestern Kansas: Unpubl. master's thesis, Univ. Kansas, 71 p.

  • Robinson, J. E., 1969, Spatial filters for geological data: Oil & Gas Jour., v. 67, no. 37, p. 132–134, 136–138, 140.

    Google Scholar 

  • Robinson, J. E., Charlesworth, H. A. K., and Ellis, M. J., 1969, Structural analysis using spatial filtering in interior plains of south-central Alberta: Amer. Assoc. Petroleum Geologists Bull., v. 53, no. 11, p. 2341–2367.

    Google Scholar 

  • Schuman, R. L., 1963, Paleogeomorphology of the sub-Mesozoic and sub-Cretaceous unconformities in Kansas: Unpubl. master's thesis, Univ. Kansas, 38 p.

  • Whitten, E. H. T., 1969, Trends in computer applications in structural geology,in Computer applications in the earth sciences: Plenum Press, New York, p. 223–249.

    Google Scholar 

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Authors and Affiliations

  1. Union Oil Company of Canada, Canada

    J. E. Robinson

  2. Syracuse University, USA

    D. F. Merriam

Authors
  1. J. E. Robinson
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  2. D. F. Merriam
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Robinson, J.E., Merriam, D.F. Z-trend maps for quick recognition of geologic patterns. Mathematical Geology 3, 171–181 (1971). https://doi.org/10.1007/BF02045959

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  • DOI: https://doi.org/10.1007/BF02045959

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