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Drilling for Geology II – Register Now

The Australian Institute of Geoscientists (AIG) is hosting the second instalment of its very successful Drilling for Geology conference held in 2008. Drilling for Geology II, being held in Brisbane 26-28 July, 2017 will again focus on the collection and analysis of geoscientific information from drilling.

Thirty presentations will cover best practice, case studies, emerging developments and blue sky R&D in the themes of:

  • ? Industry overview
  • Drilling techniques ?
  • Drilling logistics ?
  • Sensing and geophysics ?
  • Drill hole sampling and logging methods ?
  • Making better use of drilling data

A trade exhibition will run in parallel with the technical program. All conference breaks and the welcome function will be held in the exhibition for networking.

Two days of presentations will be followed by a day of professional development workshops.

Click here for the latest conference brochure which includes registration details.  Follow this link to register on-line.

Smart Use of Technology and Data

8 CPD HoursAIG Victoria branch will hold their annual conference on Friday 13 October 2017 on the smart and successful use of innovative technology and data.  The conference will be held at Macedon, a short country drive from Melbourne airport.

This conference provides the opportunity for geoscientists who have made smart discoveries using smart technology to showcase their results.  The conference additionally provides the opportunity for innovative technology companies to showcase their smart products.

Topics to be covered include:

  • Geophysics
  • Geochemistry
  • Geological Mapping
  • Drones
  • Drill sampling and analysis
  • Data mining
  • Augmented reality
  • Drilling technology
  • 3D printing
  • Satellite imagery
  • GIS
  • Software

Speaker registration open | Exhibition booths available | Sponsorship packages available

Call for speakers: Four sessions will be held for 12-16 speakers. Presentations are 20 minutes each plus 5 minutes for questions. No abstracts or papers will be required, instead authors are requested to provide a copy of their presentation for the AIG conference web site. Please include a brief biography when submitting your request to present.

Sponsorship & Exhibition Booths: Packages are available. Exhibition booths are restricted to the first 15 applicants. Booths include a table and 2 chairs. Please nominate when registering if you prefer to bring your own banners or require a 1.8 m x 1.0 m poster board.

Click here for more information and/or to register as a speaker.

For further information and to register your interest please contact:
Rodney Boucher
Phone: 0417 506 051
Email: rodney@linex.com.au

Extracting Maximum Knowledge from Limited Data

Geosoft Logo

Extracting knowledge from limited data is arguably one of the greatest challenges inherent in the evaluation of all mineral resources.

Drilling, essentially, provides “points of observation” that must be put into a three dimensional context by carefully analysing variability exhibited in geological, geotechnical and grade / mineral composition parameters in order to develop a robust, reliable interpretation of deposit structure and resource potential.  Best practice is beginning to insist that geoscientists involved in resource evaluation also attempt to develop an understanding of inherent risk in geological models and grade estimates which, in turn, may influence development of mining plans and practices.

The geological knowledge for any deposit evolves with every new drill hole and the changes must be continuously assessed for their signifance by the project team.

As explorers are forced to look deeper and in more challenging geophysical environments, is becoming more important for geoscientists to fine-tune their survey methods in order to gain maximum value from limited data sets. Two examples of this continual improvement will be discussed from the Eagle Ni-Cu Mine in Michigan, USA. The high grade Eagle Ni-Cu mine is hosted by an ultramafic Proterozoic magmatic feeder that intruded into the metasediments of the Proterozoic Baraga Basin. There is limited outcrop in the area due to a covering of glacial till and a thick portion of the Baraga Basin is very conductive and magnetic due to pyrrhotitic sediments. The till thickness varies from 0 to over 200 m and complicates the interpretation of gravity survey data. The very conductive metasediments limits the depth of penetration of conventional surface based ground EM surveys and complicates the interpretation and limits the radius of detection of borehole TEM surveys. The ability to interpret borehole TEM surveys was improved significantly by lowering the base frequency of the transmitter in order to allow the host response to decay enough that the very conductive, constrained massive sulfide response could be better observed. Complex borehole TEM responses with multiple off-hole type responses became more conventional in nature and the off-hole response of the Eagle mineralization could be detected. Till thickness had previously been determined by drill hole intercepts and the resonant frequency of passive seismic noise. To extend the coverage of these values, frequency domain data from a Resolve survey was modeled using 1D inversion software over the entire exploration block. Once the till thickness was interpreted, the gravitational response of the till was computed and subtracted from the airborne and ground gravity surveys. This improved the interpretation of the gravity data.

The talk is presented by: Dick West, Technical Director, Exploration Technology & Group Resources, Lundin Mining Corporation.

Recorded on March 3, 2015, as part of the Geosoft Explorer Speaker Series presented at the PDAC.

Click here to view the video on the Geosoft web site (user registation required)

The video is presented here with Geosoft’s permission for which AIG expresses thanks.

Drill Core, Structure and Digital Technologies

Dr Julian Vearncombe will present a one-day short course dealing with the collection and use of important structural data from oriented drill core.

drill core

In the mineral exploration industry, diamond core drilling provides the opportunity to collect structural data relating to a target or deposit. This enables improved and early knowledge and understanding of geological and mineralisation controls of a target, with an outlook to creating all-inclusive informative models from combined surface mapping, geophysics and downhole lithology and geochemical assay data. Quality structural data are invaluable to any project, from greenfield exploration to ore body definition in an advanced project with established reserves. Understanding the structural context of a project enables further exploration, ore envelope and shoot definition, and geological control on parameters for grade interpolation.

This short course summarises the technologies available in exploration and mining and describes techniques of core orientation, marking-up, structure measurement and the visual representation of structural data. We provide a critical comparison of tools and methods available at each stage of the process.

The course is based on the published research paper: Bright, S., Conner, G., Turner, A. and Vearncombe, J.R. 2014. Drill Core, Structure and Digital Technologies. Applied Earth Sciences (Transactions Institute Mining, Minerals and Metallurgy B), 123: 47-68.

The course venue is Building 034, Room 127, James Cook University.

Cost:

AusIMM Members………………$220.00
AIG Members…………………….$220.00
AusIMM MAP Members** … $55.00
AIG unemployed/under-employed members $55.00
Student Members…………………$55.00
Student Non-Members………….$55.00
Non-Members ……………………$440.00

Click here for the course brochure.  Click here for registration information.

Developing a database of fatalities that have occurred in world wide geophysical operations

The International Association of Geophysical Contractors (IAGC) is developing a database of fatalities that have occurred in world wide geophysical operations.

Risk management has to be experience-based, and hence needs a “memory function.” Risk assessments for low frequency, high potential incidents (fatalities) need to be done on the basis of collective industry experience. With the great crew-change that is occurring today, to an extent this memory is being lost.

To help address this situation, IAGC and the OGP Geophysical HSE Subcommittee are assembling a simple database of fatalities from geophysical operations that have previously occurred. We believe this important project will improve the industries’ HSE management of geophysical operations. The database would serve this purpose and furthermore:

  • Provide essential training material for the new generation of professionals.
  • Knowledge of what has gone wrong in the past.
  • Avoid re-inventing of the wheel the hard way.

Help answer the question: “Has this happened before?”

  • Provide completeness checks on hazard registers and HSE guidelines and manuals.
  • Provide further statistical insight on the risk pattern and profile for Geophysical operations.
  • Enable the use of the full industry experience, rather than the limited experience of a single company or individual.

More information regarding this initiative is available here.