OGC Software

	FRANCIS
	PITARD
	SAMPLING
	CONSULTANTS

OGC™ SOFTWARE

Envision the cost of variability...

with OGC software

OGC (Ore Grade Control) is an effective tool for analyzing and evaluating exploration data and costs. Sampling characteristics of the ore are calculated, and then a sampling protocol is developed. Drilling costs are minimized while maximizing information. Ore grade misclassification is estimated. OGC is a set of techniques to assess the origin of variability in any sampling pattern:

	An exploration drilling pattern
	A blasthole drilling pattern
	A copper cathode drilling pattern
	A laboratory subsampling pattern from an analytical sample pulp

The OGC approach is very versatile, using the principles of the Sampling Theory as presented by C.O. Ingamells. OGC is not a substitute for good geostatistics, but it is rather a complementary tool to show the necessity of having good geostatistical programs.

OGC is an effective tool used by managers to investigate optimization of sampling protocols and sampling patterns, and if not optimized, the possible negative effects. Such investigations of flawed sampling protocols and sampling patterns may minimize negative consequences resulting from...

	Poor sampling and subsampling protocols
	Poor sampling frequency
	Highly Poisson skewed data
	Poor precision ellipses
	Poor cutoff grade selection
	Cutoff grade incompatible with precision ellipse
	Very large, invisible operation cost

A few applications of OGC may include:

	Assessment of variability sources in existing data
	Assessment of sampling characteristics in a new ore or product
	Optimization of exploration costs by optimizing total sample weight
	Quantifying possible money losses using precision ellipses
	Quantifying possible money losses using duplicate samples
	Quantifying possible money losses using simulated duplicated samples

OGCellipse.jpg (117986 bytes)

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OGC features:

Standard Windows 95, 98, 2000 graphical user interface
Ability to read data from a Microsoft Excel 5 Workbook
Supported file formats for data sets are: .vts, .xls, tab delimited ascii
User configurable high quality graphical output
Sophisticated Sampling Diagrams, precision ellipses and their synergy with selected grade cutoffs
Relative Difference plots and Moving Average to detect additional biases
Hyper-text linked User Reference Manual

In conjunction with OGC software, the following training course is offered to enhance your usage:

Ore Grade Control Software (OGC) Course, provides an overview of the sampling characteristics of an existing or unknown orebody. The same approach is used for finding the sampling characteristics of impurities in highly valuable products (e.g., copper concentrates, alumina shipments, copper cathodes, etc...). The same approach is used for finding the sampling characteristics of a pollutant in the environment. After completing this course, you should be able to quantify in graphics:

	Sampling characteristics using existing data,
	Sampling characteristics of an unknown ore or product,
	Impact of highly Poisson skewed data,
	Minimization of exploration cost,
	Precision an accuracy ellipse,
	Money loss generated by sampling and analytical precision,
	Amount of ore grade misclassification,
	Wisdom of a pre-selected economic cutoff grade.

Product content is subject to change without notice.

Training content is subject to change without notice.

OGC Ver. 1.0.4 is available exclusively for clients of FPSC.
For more information: info@fpscsampling.com

�2005 FPSC, LLC
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WIPO member nations