Define Strata

Define Strata serves several purposes. It is an optional settings/configuration file that defines strata and bed hatch patterns, Key status, density, conformance modeling settings, and bed splitting settings. Without the strata definitions predefined, StrataCalc commands will use defaults.

Define Strata is a dialog based spreadsheet editor for strata definitions. The first window shows a list of all of the currently defined strata. If no strata are yet defined, this table will be empty. This command is used to define both Strata, such as COAL and Beds, such as C_KEY. To add a new strata definition, click on the Add button. This brings up the Strata Definition dialog. To edit an existing strata definition, highlight the corresponding line in the table and then click on Edit button which also brings up the Strata Definition dialog. To edit the same property for multiple strata such as the Hatch Scale, highlight multiple rows in the spreadsheet by picking with the Ctrl and/or Shift keys, and then pick the Edit Multiple button. You can also use the standard Windows Copy and Paste functions to edit cells in the spreadsheet. To remove a definition, highlight the corresponding line and then click on the Remove button. The Sort button will sort the strata either by name alphabetically, or by following the Geologic Order file that is created with the Define Geologic Order command. The Draw Legend button will draw a legend of the selected strata. The Read Drillholes button will read the selected drillholes and add a default definition for any strata names found in the drillholes that are not already in the table. The Read Model button will search the Geologic or Mining Model for strata names and put them on the list. The Save and Save As buttons exit Define Strata after saving all the changes in the current session to the strata definition file (.sdf file). The Exit button exits Define Strata without saving.

Draw Legend brings up the selection window to choose which items to display in the legend. Then the legend location is selected.

The Column Options button displays the window to select which columns appear in the main Define Strata Screen.


Prompts

Strata Definitions Table 
Strata Definition Edit Dialog 
Strata Hatch Patterns 

Pulldown Menu Location: Drillhole in Geology, StrataCalc in the Mining menu
Keyboard Command: sdef
Prerequisite: None

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