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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Mathematical geology 3 (1971), S. 95-121 
    ISSN: 1573-8868
    Keywords: data processing ; mapping plotting ; statistics ; general geology ; geochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Mathematics
    Notes: Abstract Afortran iv computer program for grey-level mapping of spatial data using a CDC 6600 is described. The program produces maps for irregularly distributed data in as many as 10 intensity levels which are displayed in grey tones by a lineprinter. Unlimited map size and unrestricted data input provide for as many as 5000 data points per 13-in.-wide strip of map. The program is easily modified for other installations. Examples are given of geochemical analyses of stream sediments in Northern Ireland.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Mathematical geology 19 (1987), S. 1-24 
    ISSN: 1573-8868
    Keywords: mathematical geology ; statisics ; statistical graphics ; geochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Mathematics
    Notes: Abstract A quantitative investigation of types of statistical graphics and maps being used for presentation of geochemical data has been made for the 1984 volumes ofGeochemica et Cosmochimica Acta, Chemical Geology, Contributions to Mineralogy and Petrology, Geochemistry International, Journal of Geochemical Exploration, Journal of Petrology, and the 1983 volume ofOrganic Geochemistry. Although a number of significant differences exist between relative proportions of text, tables, statistical graphs and maps, and other illustrations in the various journals, overall figures are comparable broadly to those found by Cleveland (1984) in a recent survey of usage in 57 journals in natural, mathematical, and social sciences. Between 18% and 35% of 1463 graphs and maps in these journals contain at least one item of error or poor presentation, indicating the need for substantial improvement in both standards of preparation and refereeing of diagrams, and we suggest guidelines for both authors and referees.
    Type of Medium: Electronic Resource
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