Extractions

If an option that allows stopes to grow from, or overlap, existing stopes (such as Mine > Definition | Design | Underground > Stope Design | Design > Generate partial stopes) is not selected, each stope will be identified as a separate extraction and assigned its own extraction number. However, if such an option is selected, it may not be possible to identify the boundaries of each individual stope due to the potential for multiple feasible stopes to overlap. In this scenario, all feasible overlapping stopes will be included in a single extraction and assigned the same extraction number.

The Extractions data source contains all single-valued properties for the extractions generated by the optimiser from the block model for the underground mine – derived by combining and/or summarising values from constituent blocks as required.

It includes the following attributes:

Attribute	Description	Derivation
MineName	Name of underground mine.	As specified by Mine > Name.
MineCode	Identification code for underground mine.	As specified by Mine > Code.
StageCode	Code for stage to which extraction was assigned.
StageParameterValueFormed	Value of stage parameter at which extraction became profitable and included in stage.
StageParameterValue	Value of stage parameter for which values of attributes in record are reported.
ExtractionNumber	Identifying number assigned to extraction by optimiser.
MinZ	Z (elevation) coordinate of base of extraction.
MaxZ	Z (elevation) coordinate of top of extraction.
VolumeInSitu	In-situ volume of material in extraction (excluding dilution).	= OreVolumeInSitu + WasteVolumeInSitu
VolumeDilutedRecovered	Volume of material in extraction after dilution and recovery have been applied.	= OreVolumeDilutedRecovered + WasteVolumeDilutedRecovered
OreVolumeInSitu	In-situ volume of ore in extraction (excluding dilution).
OreVolumeDilutedRecovered	Volume of ore in extraction after dilution and recovery have been applied.
WasteVolumeInSitu	In-situ volume of waste in extraction (excluding dilution).
WasteVolumeDilutedRecovered	Volume of waste in extraction after dilution and recovery have been applied.
Density	Average density of material in extraction.
OreDensity	Average density of ore in extraction.
WasteDensity	Average density of waste in extraction.
MassInSitu	In-situ mass of material in extraction.	= OreMassInSitu + WasteMassInSitu
MassDilutedRecovered	Mass of material in extraction after dilution and recovery have been applied.	= OreMassDilutedRecovered + WasteMassDilutedRecovered
StrippingRatio	Ratio of waste mined in extraction to ore mined in extraction.	= WasteMassDilutedRecovered / OreMassDilutedRecovered
OreMassInSitu	In-situ mass of ore in extraction.
OreMassDilutedRecovered	Mass of ore in extraction after dilution and recovery have been applied.
WasteMassInSitu	In-situ mass of waste in extraction.
WasteMassDilutedRecovered	Mass of waste in extraction after dilution and recovery have been applied.
MiningCost	Cost of mining extraction.	= OreMiningCost + WasteMiningCost
OreMiningCost	Cost of mining ore in extraction.
WasteMiningCost	Cost of mining waste in extraction.
ProcessingCost	Cost of processing ore from extraction.
AdditionalProcessingCost	Additional cost of processing product from extraction.
GeneralAndAdministrationCost	General and administration costs of processing ore from extraction.
SellingCost	Cost of selling elements from extraction to customers.
RehabilitationCost	Cost of rehabilitating waste from extraction.
TotalCost	Sum of all costs incurred from extraction.	= MiningCost + ProcessingCost + GeneralAndAdministrationCost + SellingCost + RehabilitationCost
TotalRevenue	Sum of revenues from sales of all elements from extraction.
NetValue	Net value of extraction after subtracting costs from revenues.	= TotalRevenue - TotalCost
Repeated for each element … @ = {ElementName}_
@MassInSitu	In-situ mass of element ("metal content") in extraction.
@OreMassInSitu	In-situ mass of element ("metal content") in ore in extraction.
@MassDilutedRecovered	Mass of element ("metal content") in extraction after dilution and recovery have been applied.
@OreMassDilutedRecovered	Mass of element ("metal content") in ore in extraction after dilution and recovery have been applied.
@MassProcessedRecovered	Mass of element ("metal content") in extraction after dilution and recovery have been applied and element has been recovered from processing (i.e. including effect of processing recovery factor).
@ByMassInSitu	In-situ mass-weighted grade of element in extraction (excluding dilution).
@ByOreMassInSitu	In-situ mass-weighted grade of element in ore in extraction (excluding dilution).
@DilutingGrade	Grade of element assigned to dilution.
@ByMassDilutedRecovered	Mass-weighted grade of element in extraction including dilution and recovery.
@ByOreMassDilutedRecovered	Mass-weighted grade of element in ore in extraction including dilution and recovery.
@ByVolumeInSitu	In-situ volume-weighted grade of element in extraction (excluding dilution).
@ByOreVolumeInSitu	In situ volume-weighted grade of element in ore in extraction (excluding dilution).
@ByVolumeDilutedRecovered	Volume-weighted grade of element in extraction including dilution and recovery.
@ByOreVolumeDilutedRecovered	Volume-weighted grade of element in ore in extraction including dilution and recovery.
@Revenue	Revenue from sale of element from extraction to customers.
…]
Repeated for each material bin … # = MB_{MaterialBinName}_
#VolumeInSitu	In-situ volume of material in material bin in extraction.
#VolumeDilutedRecovered	Volume of material in material bin in extraction after dilution and recovery have been applied.
#MassInSitu	In-situ mass of material in material bin in extraction.
#MassDilutedRecovered	Mass of material in material bin in extraction after dilution and recovery have been applied.
#Costs	Total cost of mining, processing, and selling elements from, material in material bin in extraction.
#Revenue	Revenue from sale of elements from material bin in extraction to customers.
#NetRevenue	Net value of material in material bin after subtracting costs from revenues.	= #Revenue - #Costs
…]