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Making a Horizon/Fault Active

Making a Horizon Active for Picking

There are several ways to select an active horizon for picking. Click Pick Horizons to enable horizon picking mode. Then choose one of the following options:

• Click on the Active Horizon button to display a drop down list of horizons in the database.
• Click Show List of Horizons/faults on the Horizon Picking toolbar.
• Click on a horizon annotation tag to set the event active for picking.
• While in the Seismic window, press <p> on your keyboard.

Making a Fault Active for Marking

There are several ways to select an active fault for marking. Click the Mark Faults button to enable fault marking mode. Then choose one of the following options:

• Click on the Active Fault button to display a drop down list of faults in the database.
• Click Show List of Horizons/faults on the Horizon Picking toolbar.
• Click on a fault annotation tag to set the fault active for marking.
• While in the Seismic window, press <p> on your keyboard.
• The name of the active horizon/fault appears in the Status bar at the top of the Seismic window.
• To select to have no horizons active, right-click the Seismic window to open the shortcut menu, and select Horizon Picking|Clear Horizon(or press <e> on your keyboard).

What do you want to do?

• Manage horizons or faults on your map
• Edit the properties of a horizon or fault
• Clear a horizon or fault posting on the Map window