Drillhole Data Errors: Acknowledging a reality and dealing with it

By Sam Bain


Everyone would like accurate and correct data. A lot of money is spent on trying to ensure the accuracy of data, whether it is from core logging, field mapping, or geophysical surveys. However, the reality is that mistakes and accidents will happen and some data will be wrong. Accepting that errors are always going to get in somehow, it makes sense to create systems and software that identify these errors, and then provide the tools to fix them. Good software packages help deal with data quality by identifying common errors on import of data and providing automated correction of these problems. Ideally there should be a person in the loop to ensure the identified data is an error and to decide how they should be dealt with.

Leapfrog software automatically highlights recognised data errors and in most cases provides automated or semi-automated correction tools for you. The principle source of errors is drillhole information and the drillhole interface prominently highlights recognised issues and offers you the ability to correct errors. Leapfrog software will also recognise errors and potential errors in imported locations and prompt user input to fix them.

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What is happening with Mining and Geo

By Richard Lane

Leapfrog Geo was introduced in response to a number of requests from users to have a tool that could be integrated more easily in a standard work environment and manage the level of complexity they were encountering in their models. This led to a new interface that helped organise the models in Leapfrog Geo in a more structured way.

We now have received a considerable amount of feedback on how Leapfrog Geo compares to Leapfrog Mining. It has been very informative from our perspective because it has clearly illustrated the very wide variety of uses and tasks that Leapfrog Mining has been used for.

The principal difference between the two products is that Leapfrog Mining is a toolbox, which contains a significant number of powerful tools. Leapfrog Geo is designed to do certain workflows and it does these very efficiently. For users whose principal tasks are these workflows it is the obvious choice, and a significant number of users have indicated their preference by switching to Leapfrog Geo.

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Leapfrog interpolation basics

By Kirk Spragg


The Leapfrog software suite uses a mathematical method called interpolation to produce dynamic implicit models.  An interpolation tool, FastRBF™ has been specifically developed by ARANZ Geo. FastRBF™ has revolutionised the way geologists produce geological models, as it dramatically speeds up the process and allows models to be updated dynamically. Although the mathematical details of how FastRBF™ works are somewhat complicated, the basic idea is relatively simple. This blog explains the process using simple examples.

Interpolation is a method that produces an estimate or “interpolated value” of a quantity which is not known at a point X say but is known at other points such as from drillhole data.  With the user’s expert guidance, Leapfrog uses FastRBF™ to “interpolate” or fill in the gaps where there is no data.  This is how Leapfrog creates deposits, intrusions and grade shells from the user’s data. Since FastRBF™ is fast, results can be quickly updated when new data is added, ensuring the implicit model is dynamic.

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Kickoff for the new Leapfrog blog

By Shaun Maloney

Shaun Maloney CEO ARANZ Geo Limited

Welcome to Leapfrog’s blog

I‘m fortunate to be asked to write the first Leapfrog blog and to set the scene for what we hope will be many thought-provoking blogs to come. No pressure then! Seriously though, we want this blog spot to open up a dialogue between anyone interested in geology and geological modelling in particular. So if that’s you, please get involved, we’re interested in what you have to say!

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