FISCHERPLOTS: An Excel spreadsheet for computing Fischer plots of accommodation change in cyclic carbonate successions in both the time and depth domains

Fischer plots are plots of accommodation (derived by calculating cumulative departure from mean cycle thickness) versus cycle number or stratigraphic distance (proxies for time), for cyclic carbonate platforms. Although many workers have derived programs to do this, there are currently no published,...

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Bibliographic Details
Published in:Computers & geosciences 2008-03, Vol.34 (3), p.269-277
Main Authors: Husinec, Antun, Basch, Danko, Rose, Brett, Read, J. Fred
Format: Article
Language:English
Subjects:
Accommodation space
Earth sciences
Earth, ocean, space
Exact sciences and technology
Excel spreadsheet
Fischer plots
Parasequence
Sea level
Stratigraphy
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Summary:Fischer plots are plots of accommodation (derived by calculating cumulative departure from mean cycle thickness) versus cycle number or stratigraphic distance (proxies for time), for cyclic carbonate platforms. Although many workers have derived programs to do this, there are currently no published, easily accessible programs that utilize Excel. In this paper, we present an Excel-based spreadsheet program for Fischer plots, illustrate how the data are input, and how the resulting plots may be interpreted. The plots can be used to derive periods of increased accommodation, shown on the plots as a rising limb (which commonly matches times of more open marine, subtidal parasequence development). Times of decreased accommodation, shown on the plots as a falling limb, generally are coincident with thin, shallow, peritidal parasequences.
ISSN:0098-3004
1873-7803
DOI:10.1016/j.cageo.2007.02.004