This command composites strata within a drillhole based on bed
name and key/non-key status. All the non-key strata with a matching
bed name that are above the first key strata are composited and
assigned the name strata_top. The non-key strata between the key
strata are composited as strata_parting. The key strata with a
matching bed name are composited as strata_key. The non-key strata
below the last key are composited as strata_bottom. This
compositing method is the same the StrataCalc uses for processing
strata with bed names. The strata qualities will be weight averaged
by thickness, giving one value for each attribute.
Before Composite Strata By Beds
Strata name Bed name Key Thick Bot Elev
ROCK C1 NO 67.00 1684.12
ROCK C1 NO 1.00 1683.12
COAL C1 YES 1.50 1681.62
ROCK C1 NO 0.25 1681.37
COAL C1 YES 0.25 1681.12
COAL C1 YES 2.00 1679.12
ROCK C1 NO 1.00 1678.12
After Composite Strata By Beds
Strata name Bed name Key Thick Bot Elev
C1_TOP C1 NO 68.00 1683.12
C1_PARTING C1 NO 0.25 1682.87
C1_KEY C1 YES 3.75 1679.12
C1_BOTTOM C1 NO 1.00 1678.12
Select the Drillholes to composite.
Select objects: pick the
drillholes to process
Pulldown Menu Location: Drillhole-> Strata/Bed
Utilities
Keyboard Command: compstrata
Prerequisite: Drillholes