FischerLab: An Interactive Program for Generating Dynamic Fischer Plots From Wireline Logs and Stratigraphic Data
Fischer plots are a technique used to graph changes in accommodation in cyclic carbonate successions. They typically depict the cumulative departure from average cycle thickness as a function of cycle number or stratigraphic depth. Many applications of Fischer plots focus on its construction from exposed cyclic carbonate successions but there are no published programs that allow a direct construction of Fischer plots from digital wireline well logs or that allow a stepwise presentation of Fischer plots. In addition to accepting interpreted stratigraphic data input, FischerLab facilitates the interpretation of digital wireline logs for generating Fischer plots in cycle and depth domains as well as in a dynamic evolving cycle and relative depth domain. The dynamic construction facilitates correlating specific stratigraphic packages to parts of the accommodation cycle while simultaneously tracking the locus of the mean subsidence vector. We demonstrate the usage of FischerLab on data derived from interpreted carbonate successions as well as from wireline log data. We also demonstrate the application of FischerLab to tidal rhythmic deposits, which generally satisfy the assumptions of Fischer plots. Fischer plots applied to tidal rhythmites may be give insight to the lunar orbital periods associated with the tidal rhythmites deposits.
AAPG Datapages/Search and Discovery Article #90291 ©2017 AAPG Annual Convention and Exhibition, Houston, Texas, April 2-5, 2017