FAQ

In PHIL, save the model as a binary file.

Read that file into PHIL Utility.

Read the Observation file.

Select Compare Model Results.

You will see a plot showing the differences. Two files will be generated called Comparison Results that will contain the numerical differences.

To deposit sediment from the right side look for the Direction Parameter in the variable file and set it to -1.

If you want two sided deposition, duplicate the Direction Parameter and change the name to something different (i.e. from "untitled" to "Orinoco"). All parameters are duplicated from the default model unless specified otherwise. Use the new name to specify parameters for the new delta.

Time to Depth conversion is active under the Process Observations Menu. If you read in a set of observations containing the two-way travel-time of the horizons (designated by the T flag), the Time to Depth Menu item will be highlighted. Adjust the Velocity function and convert the TWTs to Depth.

All of the Variables to the left under Process Model require that you read a completed model into PHIL Utility.

The item under Process Model is Depth to Time conversion.

You will have access to the options on the Process Model Menu when you have read in a model result file.

Run model.

Save model.

Open PHIL Utility.

Read in Model.

It controls how rapidly slump sediment settles from suspension. High values deposit sediment close to the slump scarp. Low values deposit sediment far from the slump scarp.

The loads at the margins of the model are projected outward to simulate loads beyond the margin of the cross-section. The taper limit defines the distance at which the projected load reaches a value of zero.

Yes. By setting the Shelf Margin and Shelf Production Rates to 0.0, the reef will not appear. Keep the Suspension Production greater than 0.0 to produce only suspended micrite.

The sediment volume used by PHIL is the value that is required to fill the area plus material that is lost at the margins by gravity-flow processes.

If you measure the decompacted thickness of a layer at discrete points and multiply that thickness by the distance between each of those points, you will end up with an area for the cross-section. These units will probably be square meters. Divide the value by the duration (in ky) over which the sediment was deposited to determine the influx rate. This unit will be square meters/ky.

The actual volume that PHIL requires will be greater than this value if any gravity-flow sedimentation is occuring on the front of the clinoform.

Therefore, you will almost always need to increase this influx rate.

It is always good try to adjust the position of the coastline through time by adjusting the sediment supply. If you are satisfied that the thicknesses are correct (controlled by subsidence rates) adjust the influx rate. Increase the influx rate, if the system did not prograde far enough. Decrease the influx rate, if the system prograded too far.

You may want to increase the length of your cross-section or only measure the volume for the section which is equivalent to the modeled cross-section.