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PODCAST

Fresh Thinking by Snowden Optiro

News and information from the world of geology and mining, Fresh Thinking by Snowden Optiro provides a new perspective on the mining industry and seeks to educate on best practice. Snowden Optiro is a resources consulting and advisory group that provides independent advice, consulting and training to mining and exploration companies, their advisors and investors. We help mine developers to advance their projects, mining companies to improve their operations and their professionals, and investors

science natural sciences

All Episodes

19:33

24 - Geological interpretation and modelling

Fresh Thinking by Snowden Optiro ·

2019/11/11

Should geochemistry be used more than structure? How can you get a 3D picture of a resource? And what are "coloured shapes around coloured numbers"? Optiro's Principal Consultant Mark Drabble joins Fresh Thinking to give an overview of geological interpretation and modelling. In this episode: 0:57 What is geological interpretation? 2:31 Why is it so important? 3:28 How do geologists interpret the information they see? 4:29 What are "coloured shapes around coloured numbers?" 7:22 What is the best way

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15:52

23 - Recoverable resources (part two)

Fresh Thinking by Snowden Optiro ·

2019/10/28

Geologists need to use the right methods when estimating the tonnage and grade they can expect from an ore body. For recoverable resources, when uniform conditioning doesn't work, you need to turn to alterative techniques. In part two of this two-part series, Senior Geostatistician at Geovariances, David Barry, and Director of Geology at Optiro, Ian Glacken, discuss MIK and conditional simulation. In this episode: 2:05 There are alternatives to uniform conditioning for when it isn't suitable 4:15

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19:16

22 - Recoverable resources (part 1)

Fresh Thinking by Snowden Optiro ·

2019/10/14

Geologists need to make predictions about how much can be extracted from an ore body based on limited data. What can you do to confidently report on the likely tonnage and grade? In part one of this two-part series, Senior Geostatistician at Geovariances, David Barry, and Director of Geology at Optiro Ian Glacken discuss recoverable resources and how to apply uniform conditioning. In this episode: 1:25 What are recoverable resources? 2:34 What is the difference between recoverable and ordinary

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10:21

21 - Underground grade control and sampling

Fresh Thinking by Snowden Optiro ·

2019/09/30

Underground grade control is different from open pit grade control and to take you through the depths of their experiences, Optiro's Director of Geology Ian Glacken and geometallurgist Simon Dominy discuss the topic, covering techniques and methods. In this episode: 1:00 How is underground grade control different to open pit? 1:47 How does the mining methods used in underground mining affect the way you'd do grade control? 2:53 Do we need to use a wider range of techniques for underground grade

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15:40

20 - Coarse gold sampling and assaying

Fresh Thinking by Snowden Optiro ·

2019/09/16

It is visually very attractive, but getting an accurate grade for coarse gold isn't straight forward. If you've used the wrong techniques, your estimate could be way off. World expert in this field Simon Dominy joins Optiro's Director of Geology Ian Glacken to discuss what you could do to make sure you're reporting the right grade from your samples. In this episode: 1:15 Let's clarify - what is coarse gold? 2:58 What deposits in Australia are classified as coarse gold? 4:06 It's visually appealing,

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16:14

19 - What is geometallurgy?

Fresh Thinking by Snowden Optiro ·

2019/09/02

The relatively new practice of geometallurgy is giving miners an additional tool to employ in their search for viable mineral reserves. Dr. Simon Dominy, an old friend of Optiro's and a leading geometallurgist joins Optiro's Director of Geology Ian Glacken to discuss the discipline and how it's being used in industry. In this episode: 1:32 What are the differences between geometallurgy, geology and metallurgy? 2:40 If you're going to be a geometallurgist, should you start out as a geologist or a

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12:27

18 - Relationships matter

Fresh Thinking by Snowden Optiro ·

2019/08/19

Consulting as a geologist in the mining industry is a very rewarding career, but what about the clients?! How can a great relationship with a client make a job successful, or a terrible relationship make a project head south? Optiro's Director of Geology Ian Glacken spills the beans on some of the experiences he's had throughout his career, revealing the good, the bad and the ugly. In this episode: 1:07 What's the worst job you've ever worked on? 2:20 So what constitutes a good job for you? 3:57 How

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20:27

17 - Due Diligence Tips and Traps (part 4 of 4)

Fresh Thinking by Snowden Optiro ·

2019/08/06

Due Diligence is an important process to undertake when acquiring a mineral asset, but how do you know if you're getting it right and if it's protecting you from issues down the line? In this episode, the final part of a four part series, Managing Director of Optiro Mark Warren shares some of his experiences around Due Diligence, illustrating that it's not always straight forward. In this episode: 1:02 If I'm buying a mineral asset, what should I hope to get out of due diligence? 9:58 What are some

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14:42

16 - Due Diligence Process (part 3 of 4)

Fresh Thinking by Snowden Optiro ·

2019/07/23

Due Diligence is an important process to undertake when acquiring a mineral asset, but how do you know if you're getting it right and if it's protecting you from issues down the line? In this episode, part three of a four part series, Managing Director of Optiro Mark Warren explores the Due Diligence process and how to keep it swift. In this episode: 0:52 What are the steps in the due diligence process? 5:56 What is a data room? 10:07 How long does a due diligence typically take? 11:28 The level of

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14:18

15 - Scoping Due Diligence (part 2 of 4)

Fresh Thinking by Snowden Optiro ·

2019/07/09

Due Diligence is an important process to undertake when acquiring a mineral asset, but how do you know if you're getting it right and if it's protecting you from issues down the line? In this episode, part two of a four part series, Managing Director of Optiro Mark Warren explores the scoping of Due Diligence, ensuring you have all the right people in the room to get a good result. In this episode: 1:01 To understand the scope, what are some things included in a technical due diligence? 2:53 A

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10:34

14 - Due Diligence - What is it? (part 1 of 4)

Fresh Thinking by Snowden Optiro ·

2019/06/25

Due Diligence is an important process to undertake when acquiring a mineral asset, but how do you know if you're getting it right and if it's protecting you from issues down the line? In this episode, part one of a four part series, Managing Director of Optiro Mark Warren explores some fundamental questions around Due Diligence. In this episode: 1:01 Give us some background - how long have you been involved in DDs? 1:57 So what is due diligence? Is it just doing your homework? 3:55 Does the standard

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14:12

13 - On the same page with reconciliation dashboards

Fresh Thinking by Snowden Optiro ·

2019/06/11

Seeing all the information you need to make a decision on one screen can be a powerful tool for management. Reconciliation dashboards are becoming more popular with miners who want to have all the information available for each stakeholder in the process. Optiro's Director of Geology Ian Glacken boils down the essence of these dashboards in this episode and explains the good practices he has seen around the world and what they allow miners to do. In this episode: 0:52 What is the concept of a

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12:56

12 - QAQC - going deeper on accuracy and precision...

Fresh Thinking by Snowden Optiro ·

2019/05/28

It's time to go deeper on accuracy and precision in the context of quality control of geological data. In the second half of this two-part series, we explore precision: Optiro's Principal Consultant Paul Blackney goes into detail on precision and why it matters when sampling. In this episode: 0:56 What is an acceptable level of precision for sample grade data? 5:33 What happens when your grade precision is not consistent with what you were expecting? For more information: Contact Paul Blackney -

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13:29

11 - QAQC - going deeper on accuracy and precision...

Fresh Thinking by Snowden Optiro ·

2019/05/14

It's time to go deeper on accuracy and precision in the context of quality control of geological data. In the first half of this two-part series, we explore the subject of accuracy: Optiro's Principal Consultant Paul Blackney explains the difference between the two concepts and then illustrates what accuracy means in practice in mining. In this episode: 0:54 What's the difference between accuracy and precision? 5:12 Why are the accuracy and precision of geological data so important? 7:09 How do we

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13:03

10 - Seven rules for report writing

Fresh Thinking by Snowden Optiro ·

2019/04/30

Reports are one of the most important methods of communication in the world of geology. Writing well means your findings will be well understood and interpreted correctly the day you deliver them and years down the track. Optiro's Director of Geology and report editor in chief Ian Glacken has summarised his advice on report writing down to seven key points. In this episode: 0:40 What sort of reports are there in geology and why are they important? 1:18 Why is good report writing important? 2:08 Rule

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12:21

9 - Sampling - the critical decisions

Fresh Thinking by Snowden Optiro ·

2019/04/16

Most important decisions in mining are in some shape or form dependent on the accuracy of sampling. There are many ways to introduce errors and its important to eliminate as many as possible. Optiro's Director of Geology Ian Glacken explains why sampling is so important, the sorts of errors that can be introduced during sampling and how to avoid them. In this episode: 0:36 Why is sampling important in the mining industry? 1:42 What are sampling errors? 2:54 What are the key principles of sampling in

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15:06

8 - QAQC - quality is everything! (Part 2)

Fresh Thinking by Snowden Optiro ·

2019/04/02

Quality Assurance and Quality Control, or QAQC, encompasses a range of controls that ensure accurate results in sampling. In this part 2 of the two-part series on QAQC, Optiro's Director of Geology Ian Glacken and Principal Paul Blackney discuss precision, contamination and best practice. In this episode: 1:02 How do we measure precision and why is it important? 3:12 What are the properties of a duplicate for precision analysis? 3:50 Why do we need to take duplicates at various stages? 5:09 What are

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15:00

7 - QAQC - quality is everything! (part 1)

Fresh Thinking by Snowden Optiro ·

2019/03/19

Quality Assurance and Quality Control, or QAQC, encompasses a range of controls that ensure accurate results in sampling. In this part 1 of the two-part series on QAQC, Optiro's Director of Geology Ian Glacken and Principal Paul Blackney discuss the difference between QA and QC and how accuracy is determined. In this episode: 0:56 What is QAQC? 2:10 What are the limits of QAQC in the mining cycle? 2:45 What are the key aspects of what QAQC is trying to achieve? 4:09 How do we measure accuracy given

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10:13

6 - Declustering - what is the true grade?

Fresh Thinking by Snowden Optiro ·

2019/03/06

Declustering is a critical technique to understand and use when estimating a resource. It helps you get a more accurate picture of the whole ore body, but why is it controversial in parts of the industry? Optiro's Director of Geology Ian Glacken and Principal Paul Blackney discuss the technique and where to use it. In this episode: 0:51 What is declustering and why is mining data clustered? 1:41 What are the implications of not declustering? 2:03 When is declustering useful? 2:52 Do we need to

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11:15

5 - Reconciliation

Fresh Thinking by Snowden Optiro ·

2019/02/20

Getting reconciliation wrong can lead to dire consequences for miners. Mine reconciliation is the practice of comparing the tonnage and grade of material processed by the mill with the tonnage and grade of ore in the reserve model of a deposit and with the tonnage and grade in the grade control models used to define ore in mining. Optiro's Director of Geology Ian Glacken explains what can go wrong and how we can aim to avoid issues. In this episode: 0:47 What is reconciliation and how it applies

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144 results

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