What is a block model in Geology?

The block model is created using geostatistics and the geological data gathered through drilling of the prospective ore zone. The block model is essentially a set of specifically sized “blocks” in the shape of the mineralized orebody. Although the blocks all have the same size, the characteristics of each block differ.

What is ore reserve estimation?

Ore-reserve estimates include the determination of (1) tonnages of ore and (2) average grade or value per ton. Since the grade or content of valuable metal establishes the difference between rock that may and may not be classed as ore, tonnage cannot be estimated without considering the question of grade.

What is a maiden resource estimate?

The maiden resource estimate at Florida Mountain is defined by 840+ historical drill holes drilled to an average depth of just 130 meters, incorporating more than 108,000 meters of historic drilling.

What is a block model in design?

Block modelling help the designer determine shape, dimensions, and surface details by making 3D models. It can be useful when determining the ergonomic factors of the product. By making a series of block models in different shapes and sizes it gives the designers a feel for the product and how it will be when…

What are geologic controls?

The geological controls range across scales from local prospects (such as permeable fracture networks and rock properties) to the regional volcanic and/or tectonic setting.

How do you calculate tonnage of ore?

The standard method of making these estimates is to find the cubic contents of triangular prisms, in the apexes of which the drill holes are placed, by multiplying the surface area by the average depth of the ore in the three drill holes and then multiplying the cubic contents by the specific gravity of the ore or rock …

What is the value of ore?

The grade of ore refers to the concentration of the desired material it contains. The value of the metals or minerals a rock contains must be weighed against the cost of extraction to determine whether it is of sufficiently high grade to be worth mining, and is therefore considered an ore.

What is maiden resource?

• Definition of a Maiden Mineral Resource estimate of 36Mt grading 1.17% Li2O and. 107ppm Ta2O5 (for 425 000t of contained Li2O and 9 Mlb of Ta2O5); • Measured, Indicated and Inferred Mineral Resources of 31 Mt grading @ 1.22% Li2O. declared, comprising 86% of Total Mineral Resource (fresh rock)

What is model making in architecture?

Model making in architecture is as an integral as sketches when creating a project, and the type of models made vary depending on the stage of the design process. Conceptual model. Conceptual model making often accompanies the initial sketches and creative brainstorming in the beginning stages of the project.

What is tonnage factor in mining?

The tonnage factor provides the mechanism for the conversion from volume of ore to weight of ore. In the English system, the tonnage factor is normally expressed as cubic feet per ton of ore. In the metric system, the tonnage factor is the specific gravity of the ore.

How much copper is in a ton of ore?

In most cases copper ores contain between 0.6 and 1 per cent of copper. Consequently one tonne of ore generates a maximum 6 to 10 kilograms of copper. In the case of platinum the yield is much lower: 1 tonne of ore usually contains between 3 and 6 grams of platinum.

Why do mining engineers need to learn about block models?

While the focus of this document is to introduce mining engineers to block models so that they have some understanding of what they are dealing with and to make sure they do not make mistakes from a lack of knowledge, it needs to always be kept in mind that the block model they have been given may not be appropriate for the task at hand.

Is your resource block model as good as the geological model?

A resource block model will only ever be as good as the geological foundations upon which it is built. And as the resource block model is the foundation upon which the industry’s mine plans are built, our plans will only ever be as good as the geological block model that has been given to us to use.

What is a datamine block model?

Datamine block models have two “levels” of blocks: parent blocks and child blocks (sub-blocks or sub-cells). When a Datamine model is created, the user specifies the parent block size, which will be consistent for the life of the model.

Is it better to model dilution and loss outside of block models?

To achieve this objective, it will sometimes be better to model dilution and loss outside of the block model and on specific mining shapes or specific ore body shapes that may be used for scheduling.