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OR/15/046; Final 1.0
Last modified: 2015/09/03 09:12
coordinate. If you wish to edit the coordinate, hold down the CTRL key before clicking – this will display an
edit dialog.
(4) To finish drawing the cross-section, once the final desired point of the line-of-section has been placed,
select the Finish Cross-Section button
3.4
from the map window toolbar.
CROPLINES
Croplines are effectively the geological map. Lines should always represent the BASE
contact of the geological layer. Croplines can be at surface (outcrop) and/or sub-surface
(subcrop), therefore the complete set of croplines for a given geological area will be a full
sub-surface map of the BASE contacts of all of the geological horizons.
Croplines only represent true contacts – they should not be used to draw project boundaries to
constrain horizon coverages.
Croplines are, by default, the representation of the BASE contact of the unit against the
ground surface in the case of outcrop linework or against the base of an overlying horizon in
the case of subcrop. However, in faulted geology a cropline may represent a contact of the
BASE of the horizon with the fault plane. For further detail refer to the Workflows > Fault
Construction section of the manual.
3.4.1 Drawing A New Cropline
To draw a new cropline:
(1) First select the desired rock layer code from the Rock Code Library. This will set the code as the currently
active drawing code in the session. To do this, select the Codes tab from the left hand object reference
window taskbar and scroll or search for the geological code:
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