• About Amira
    • Back
    • Member Service & Benefits
    • The Amira Framework
    • The Amira Team
    • Amira Governance & Structure
  • Community
    • Back
    • Become a Member
    • Researchers
  • Programs
    • Back
    • Projects
    • Knowledge Platform
  • News & Events
    • Back
    • News
    • Events
  • Contact
  • Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Amira

Amira

Enhance. Sustain. Deliver.

Member Login

  • About Amira
    • Member Service & Benefits
    • The Amira Framework
    • Amira Governance & Structure
    • The Amira Team
  • Community
    • Become a Member
    • Researchers
    • Global Alliances
  • Programs
    • Project Portfolio
    • Centers of Excellence
    • Knowledge Platform
    • Global Alliances
  • News & Events
    • News
    • Events
  • Contact

#AmiraAlumni

Celebrating success: Angela Rodrigues

10 February, 2021 by zeme capa

Amira Global is thrilled to spotlight PhD candidate Angela Rodrigues. Angela is working on Amira Global Project P1202 Far-field and near-mine footprints: Finding and defining the next generation of Tier-1 deposits, and has just been announced as a finalist in the ANZ Women in AI (Mining) Awards. We chatted to Angela about her role with Amira Global and her success in the awards.

What is your role in P1202?

I am a researcher within P1202 (PhD candidate at Monash University). The project has several industry partners and sponsors: Newcrest Mining, AngloAmerican, BHP, Boliden, Freeport, Merdeka, Mount Isa Mines, Vale, Newmont, Rio Tinto, Fortescue, Codelco, FMG, and Teck Resources. Most PhD students, like myself, work closely with one of the sponsors to develop workflows tailored to their needs, and I work in partnership with Newcrest Mining. My study site is the Waivaka Corridor, a 5-km segment of porphyry systems, located in the Namosi District, Fiji.

How is your PhD contributing to the P1202?

P1202 is a multidisciplinary approach that aims to develop new tools for cost-effective exploration programs and resource assessment. The research team work to facilitate new and refined tools for fertility assessment for several types of ore deposits (porphyry, epithermal, skarns) and at different scales: regional, district and near-mine scale. My research specifically relates to the development of exploration tools for porphyry-copper deposits at the near-mine scale. Particularly, I work with the application of numerous data analysis techniques and computer vision to drill hole derived data, such as spectral data and assay data. These objective techniques aim to reduce the amount of time required to identify a resource opportunity and are designed to provide machine-support to project geologists responsible for interpreting the drill hole data.

What is the topic of your PhD?

The topic of my PhD is the Automated mineral and textural extraction from hyperspectral data.

How is your PhD contributing to the benefit of the mining sector?

My PhD project aims to create machine-supported workflows and algorithms to assist in the interpretation of hyperspectral and assay data collected from drill holes at the exploration stage. The contribution to the mining sector aligns with the P1202 aims – to design tools and workflows for industry that allow for cost-effective exploration and resource assessment. Such tools aim to reduce the time between drilling and resource discovery.  They are objective and support the geological interpretation.

The application of deep learning to hyperspectral data is still in its infancy, but it is widely applied within the remote sensing science. A good example of that is the processing of remotely sensed hyperspectral data to ascertain and classify land cover; you can now build accurate models that are able to identify for example vegetation from building areas, from water courses. However, the use of deep learning for mineral identification is still a relatively new area, from which scientists have still a lot to learn about. And that is the novel approach that I work on.

Have you enjoyed working within the Amira Project as you study? Has it contributed to your studies?

What I like the most about this project is that it brings together the best of two worlds – academia and industry. I am able to conduct research on the field that I truly enjoy and at the same time I know that my research has an application for industry. It gives me a good sense of accomplishment. Another aspect that I like about it is that it made me grew so much, both professionally and personally. We, as students, get to engage with industry and academic peers, and we get to learn about the industry needs, as well as get to learn from some of the best professionals and researchers in our area. The mentorship that has been provided to me over these years is incomparable!

What does the Women in AI Award recognise?

The Women in AI is a global network of professional women in the area of Artificial Intelligence. Their mission is to work towards gender-inclusive AI that benefits society, by educating the upcoming generation of female leaders in the field, and by increasing our representation in AI.

This inaugural Women in AI Awards represents the commitment to support and reward the excellence of AI female professionals and experts within Australia and New Zealand. The judging criteria are, amongst others, the innovation of our work, the leadership and inspiring potential and the ability of our AI to do good for the global society.

How do you feel about being announced as a finalist?

As a PhD candidate, I am stunned that I got this selection! I am among an exquisite group of female experts in AI (university lecturers, and other experienced professionals), and I cannot wait to meet them all on the Award night. I feel very fortunate that my work as a PhD student has led me to this nomination. I am thankful to JewelRock for powering this event, as well as to the funding and brilliant mentorship that I’ve benefited from being part of an AMIRA project, including my closer Newcrest Mining mentors.

Filed Under: News Tagged With: #AmiraAlumni, #FutureResources

Celebrating success: Ayesha Ahmed

28 October, 2020 by zeme capa

Many of today’s mining industry leaders have been involved with Amira Global projects. This week the spotlight is on Dr Ayesha Ahmed, Geochemist with Teck Resources, Vancouver.

In an interview with Amira Global, Canadian-born Ayesha Ahmed spoke about her time in Australia working on her PhD at the Centre for Ore Deposit and Earth Sciences (CODES) in Tasmania.

Thesis: Epidote and chlorite mineral chemistry from the Yerington porphyry copper district, USA – genetic and exploration implications

Ayesha studied spatial and temporal patterns in epidote and chlorite compositions from the Yerington porphyry copper district in Nevada, USA. Her thesis was part of the Amira Global project P1153: Applying the explorers’ toolbox to discover porphyry and epithermal Cu, Au and Mo deposits. Yerington was the perfect natural laboratory for her project, because Mesozoic rocks and associated ore deposits were tilted up to 90° during Basin and Range extension. This tilting gave her unparalleled access to surface exposures of the roots, centres, and tops of porphyry and skarn deposits in the district. The sample suite she collected in the field gave her the ability to evaluate changes in epidote and chlorite mineral composition as a function of both lateral and vertical distance from a deposit centre, with a view to developing a suite of mineral proximitors and bathymeters that explorers could use to help locate themselves within a porphyry system.

The P1153 project attracted sponsorship from 11 global mining and exploration companies and was successfully concluded in 2018. Ayesha’s PhD is still under an Amira confidentiality agreement but should be available for public consumption in early 2021. Since the conclusion of P1153, a new Amira project was initiated in July 2019 entitled P1202: Far field and near mine footprints – finding and defining the next generation of Tier 1 ore deposits. This project has attracted sponsorship from 14 global mining and exploration companies, many of which have submitted study sites to the program. The research sees the development of new tools that facilitate cost-effective exploration programs and resource assessments for porphyry, epithermal, skarn and other ore deposit types at the regional, district, and near-mine scales.

Following completion of her PhD in 2019 and after 8 productive years in Australia, Ayesha moved back to her hometown of Vancouver to take up a role as a Geochemist with Teck Resources. She attributes this role largely to her involvement with an Amira Global project, as her current employer, Teck Resources Limited, was a P1153 sponsor.

“I am a great supporter of Amira Global. The projects are extremely well-funded, meaning that the work that needs to get done to solve a scientific problem, can get done. Furthermore, the Amira industry sponsors ensure that the exploration relevance of academic projects is maintained, which continually focused my research. I came away from the project having met and worked with some of the best geologists and geochemists in the world”.

“It is truly a global network; it is how I got my role with Teck Resources. I would not be in the same position I am now without having done my PhD through the Amira Global project.”

Filed Under: News Tagged With: #AmiraAlumni, #FutureResources

Celebrating success: Penny Stewart

16 September, 2020 by zeme capa

Many of today’s mining industry leaders have been involved with Amira projects. This week the spotlight is on Dr Penny Stewart, CEO and founder of mining AI software company Petra Data Science Pty Ltd.

Today, PETRA is recognised as a leading provider of machine learning and mine optimisation software. In 2016, her company, Petra, collaborated with Newcrest to develop and deploy some of the mining industry’s first machine learning algorithms.

In an interview with Amira Global this week, Penny spoke about her experience completing a PhD on an Amira project and its contribution to her founding PETRA.

Penny began her PhD studies at UQ’s Julius Kruttschnitt Mineral Research Centre in 2000, working on mining dilution in narrow vein mines as part the deliverables for the Amira Blasting and Reinforcement Technology II project (P447A). Prior to her PhD, she worked as Mine Production and Planning Engineer at KCGM’s Super Pit in Kalgoorlie. Her experience working at mine sites around Australia resulted in a strong interest in how geological variability affects engineering design and decisions.

Amira Project P447A

The specific objectives of P447A were:

  • to appraise current practices in the areas of blasting, reinforcement and excavation design at the nominated sponsor mines
  • to enhance current design procedures in order to reduce damage, overbreak, dilution, ore loss and to optimise support and reinforcement
  • to optimise the selected design methods through observation and the recording of actual excavation, blasting and reinforcement performance.

The outcomes assisted design engineers to:

  • ensure that proper excavation design, blast design, support design and associated practices implemented suited the mining method and geological/geotechnical environment
  • ensure that the impact of stresses, blasting and blast damage were adequately taken into account during design
  • minimise the impact of blast damage on excavation, support and reinforcement performance
  • minimise damage and overbreak during development drivage and stoping.

Thesis: Minimising dilution in narrow vein mines

In response to project sponsor’s concern regarding the applicability of empirical stability charts to narrow-vein stope design and dilution prediction, Penny’s thesis focused on an improved ability to predict dilution in narrow-vein longhole stoping compared to conventional stoping.

The main finding of the thesis was that mines can develop stope design data models using their own stope performance data, as well as developing a new method to statistically validate site-specific data models including, how much, and what types of data are required. For Amira, the main deliverable was an improved ability to prevent dilution in narrow vein longhole stopes through improved stope and blast design tools. In 2002, Penny was awarded the Ian Morely Prize for best postgraduate in minerals engineering.

Penny worked full-time on her PhD for three years before completing the PhD part-time while working as a consultant specialising in the application of data analysis to improve stope and blasting decisions using each site’s own data. The advantage of completing the thesis on the Amira project was the opportunity for applied research, tackling real industry challenges.

“The greatest benefits were sponsor feedback and industry setting the parameters and outcomes. There was always a focus on applied research aimed at solving real problems in the industry,” Penny said.

The experience also gave her the confidence to think independently, finding new ways of approaching challenges.

“Amira research projects are world-class, involving some of the largest companies in the world. At the completion of my PhD I had a combination of technical expertise from JKMRC research training and industry knowledge gained from site visits to Kundana Gold Mines, Kanowna Belle Gold mine and Gold Field’s Junction mine. It gave me the confidence to challenge industry standard practice and create new methods for solving industry challenges.”

Access Penny’s Thesis here – Minimising dilution in narrow vein mines

Filed Under: News Tagged With: #AmiraAlumni, #Innovation

Primary Sidebar

© 2023 Amira · Site by White Noise Communications

Facilitators and Presenters Registration – 24 hour Global Muster

Register your interest for the Interoperability project

Download the Neerabup Automation and Robotics Park Preliminary Brief

Expression of Interest Response Form

Amira Global Project P1237: SBAS Precise Point Positioning Standards for Mining

Download the SBAS Preliminary Brief

Join our community

Find your company representative