Isochron and Amplitude Ratio Maps

Isochron and amplitude ratio maps are created by posting a horizon to the map window and selecting a reference horizon.

WinPICS subtracts the reference horizon from the posted horizon for an isochron map, or divides the posted horizon by the reference horizon for an amplitude ratio map.

The calculation is fast and allows you to quickly view other isochrons and amplitude ratios between the reference horizon and other horizons in the database.

Calculating and Posting Isochrons and Amplitude Ratio Maps

On the Layer Manager bar click the Horizon tab.
Double-click a horizon to post it.
To set the reference horizon, select a horizon from the Reference box on the Posting Status toolbar. The isochron will appear in the Map window.
To see an amplitude ratio map, select Post | Post Horizon/Fault | Amplitude from the Map menu bar (or press <Ctrl> + <a> on your keyboard). Return to the isochron map by selecting Post | Post Horizon/Fault | Time (or press <Ctrl> + <t> on your keyboard).
To end isochron or amplitude ratio posting, select Post | Post Horizon/Fault | Isochron/Amp Ratio | Clear Reference from the Map menu bar.

To see other isochrons or amplitude ratio maps between the reference horizon and the other horizons in the horizon database, press <h> on your keyboard. This will scroll you through the list of horizons in the order that they appear in the Layer Manager bar.
Use the Display Previous or Display Next icons on the Posting Status toolbar to scroll through your horizons.
See Saving New Horizons to save your isochron or amplitude ratio map to a new horizon.

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