Pick By Seam
Use the Pick by Seam option to pick from a displayed drillhole all of the intercept(s) that correspond to the one seam for which you want to calculate washability curves.Database connectionsandcurve specificationsmust also have been set up.
You can either load drillholes in the usual way using the Drilling menu, or you can use the 
Load Drillholes option (under the Geology > Washability Data submenu).
Drillholes can be loaded using any scheme, the tables displayed in the drillhole stick do NOT have to be washability data. The washability data associated with the intercept picked will be located using relational tools according to the rules you specified in the Set Up DB Connections option. However, you will need to have defined at least one set of Database connection specifications for the datasheet of the drillhole data used.
Instructions
On the Geology menu, point to Washability Data, and then click Pick By Seam.
The availability of specifications is checked.
Pick any of the intercept(s) from the required drillhole that contain the desired seam by snapping (use theSnap to Objects,Snap to Points modes) onto the segment of the displayed hole that represents one of the seam"s intercepts.
You may snap either onto the drillhole segment or, if the hole has been labelled, onto the associated text label. Note, however, that in some long holes the alignment of text and line segment can be out of alignment and the intercept picked by using the label can be one or more segments out, if this happens, you will have to pick the line segment.
Having picked the required intercept, it will be highlighted and you will be asked to confirm that it is the correct one.
Once you have accepted the picked segment, the specifications available for thedatasheetof the hole selected are then assessed.
If there are no specifications for this data sheet, then you are informed and the option terminates.
If there is only one set of specifications, then these are used automatically.
If there is more than one, then you are offered a list of available specification names for this datasheet and you must pick the one you want to use.
The drillhole is then searched (up and down) from the intercept picked to locate all intercepts containing the required seam. The overall section of the hole that contains the seam extent is highlighted.
Washability data will be extracted from the database corresponding to the seam picked; this may be one table only, or there may be several tables corresponding to the seam in the drillhole in question.
If there is more than one set of washability data for the seam in question, then the data from all sets is composited by mass weighted averaging for the appropriate amount of the interval covered by the seam.
If the seam picked has gaps in it for which there is no washability data, so that the length of hole covered by the seam is only partially represented in length by the washability data, then you will be informed of this fact and provided with three options:
Continue - ignoring missing data
This option pretends that the missing part(s) of the overall seam are not there and weights the existing data for the parts of the length represented by the seam data.
Continue - using default "waste" washability values
This option will only be offered if you have set up waste values as part of the Database connection specifications you chose to use for this intercept. Using default values weights the actual data along with the representative amount of the missing data, thus the greater the proportion of the seam length that has no data, the closer will be the final answer to the default values (it doesn't even get this far if there is no data at all covering the seam).
Cancel and pick another intercept
This option to start again and pick another intercept.
If you select one of the Continue options, then the graph(s) produced will have an indication against the depth range of how you handled the missing data.
If you use default waste values a line will be added next to the depth range that reads "(No data for a thickness ofn.nn- waste values used)"; if you ignore missing values a line will be added next to the depth range that reads "(No data for a thickness ofn.nn- ignored)" where n.nn is the total thickness of all missing
The option then proceeds as per the Pick by Intercept option.
