It had to happen. There’s no way to avoid it and still derive reasonable and robust grade predictions. We must talk about statistics. I’ll try and be gentle, make it […]
The truth about estimation #5 – Nothing is wrong with my model!
So, you think you understand the geology and your data is all ready to go. You’ve spent days, weeks, months drilling, sampling, logging and interpreting. The CEO is breathing down […]
The Reconciliation Myth #9 – When in doubt…. scream and shout
What is ore? It’s a word I’ve tried to eliminate from my vocabulary because it’s hard to pin down. One man’s (or woman’s) ore is another’s waste and vice versa. […]
The Reconciliation Myth #8 – Echoes in the wells of silence.
Question… When is an accurate estimate of tonnes and grade insufficient? Answer… When you get the geometry and location wrong. Continuing from the last reconciliation post (Hello Darkness My Old […]
The Reconciliation Myth # 7 – Hello Darkness My Old Friend
As a younger geologist, I remember being perplexed by many ‘industry standard’ practices. Take, for example, sampling broken stocks by climbing up the rill, bucket or sample bag in hand, […]
The truth about estimation #2 – Searching… Searching… Searching…
DON’T SEARCH TO THE RANGE OF THE VARIOGRAM How many times do we need to stumble over this one folks? I was just reading yet another report of a project […]
The Reconciliation Myth #6 – I don’t think you understand the Gravity of the situation
Working in reconciliation space can be frustrating. Get a group of mine geologists, engineers and metallurgists together and drop the ‘R’ word and get ready to run. Nothing seems to […]
The Reconciliation Myth #5 – The Magic of Numbers (or Statistics and Lies)
Have you ever seen something no one else can see? Have you ever looked that little bit deeper and found something that scares you? Something that lurks below the accepted […]
The Truth About Estimation #1 – Vested Interests
Over the last few weeks I’ve discussed a few of the myths that surround reconciliation. There more to discuss; however, once the onion is peeled back a bit it’s clear […]
The Reconciliation Myth #4 – “The Day-2 Conundrum” (with apologies to my accounting friends)
Picture this… A cold, winters morning. The sun is barely breaching the horizon. Everything is calm, peaceful and yet… It’s another end-of-month and time for the regular rush to publish […]