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25 March 2025 | Story Leonie Bolleurs | Photo Supplied
Dr Martin Clark
The Department of Geology at the UFS is co-hosting this year’s GeoCongress 2025 with the Geological Society of South Africa. Pictured is Dr Martin Clark, Senior Lecturer in the Department of Geology and convener of the congress.

The Department of Geology in the Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS) and the Geological Society of South Africa will co-host GeoCongress 2025, set to take place from 23 to 27 June 2025 on the UFS Bloemfontein Campus. This prestigious biennial academic event, themed: Embracing change through collaboration, will bring together leading academics, students, and industry experts from across South Africa to explore the latest advancements in geosciences.

The congress reflects the university's commitment to academic excellence, quality, and impact – core tenets of its UFS Vision 130. As a research-led, student-centred, and regionally engaged university, the UFS continues to transform itself to stay relevant within the dynamic and ever-changing international higher education sphere.

Prof Vasu Reddy, Deputy Vice-Chancellor: Research and Internationalisation, says “The university is proud to co-host this major gathering of established and emerging earth scientists from a variety of disciplines, who will present relevant, timely research topics to a wider audience. The theme underscores the centrality of geosciences to our aspirations as a university for the country and continent, directing us towards a collective sustainable future. We are excited by the ideas to be featured at this conference. More importantly, we are inspired by the prospect of further promoting real interaction and innovation between academia, industry, and society for impactful change.”

A platform for scientific excellence

It is fitting for the UFS to co-host this event, as geologists in the Department of Geology as well as in the province have made significant contributions across multiple fields, including economic geology, palaeontology, and geomorphology.

In the Department of Geology, for instance, researchers are exploring a wide range of topics, including magmatic processes in the platinum-group-bearing Bushveld Igneous Complex, AI-driven prospectivity modelling of global deposits, meteorite impact-related processes in the Vredefort impact structure, and geological and structural studies in the Namaqualand region.

In the Free State, known for its rich mineral resources, including gold, diamonds, and coal, geologists have played a big role in exploring and developing these resources, particularly in the Free State Goldfields, one of South Africa’s leading gold-producing areas. The province also boasts significant coal deposits, important for power generation. In palaeontology, geologists have helped uncover valuable fossil sites, including the Florisbad hominid site, offering insights into the history of life on earth. Additionally, their research in geomorphology, especially around the Florisbad area, has shed light on unique landscapes and depositional environments, including lunette dunes.

In agriculture, geologists have worked closely with farmers to ensure sustainable land use, providing important information on soil composition and erosion prevention. They have also played a key role in the study of groundwater resources, helping to identify and assess borehole sites for irrigation and domestic water supply, which is key to farming in the region. The Institute for Groundwater Studies (IGS) at the UFS is the only institute in South Africa dedicated to geohydrology. Founded in 1974 by Prof FDI Hodgson, the IGS is the oldest institute at the university and has produced more than 1 000 postgraduate students. The institute conducts research on a wide variety of water-related topics. Of special interest is its contribution to the mining and industrial sectors in terms of water management, minimisation of pollution, as well as understanding the nature and behaviour of South Africa's aquifers. The IGS provides a complete service to these industries through field investigations, the development of specialised field equipment, an accredited laboratory, and computer models for aquifer management.

Building on these contributions in the field, GeoCongress 2025 marks an important event on South Africa’s geoscience calendar, showcasing the latest scientific advancements, innovative research, and practical applications shaping the industry. With engaging academic sessions, dynamic workshops, and practical field excursions, the conference offers attendees the opportunity to participate in meaningful discussions, attend insightful presentations, and take part in excursions that bring theory to life.

Opportunities for networking and growth

GeoCongress 2025 is more than just an academic gathering – it is an opportunity for professional growth and networking. Participants will meet peers, mentors, and industry leaders, establishing connections that can lead to new research projects and collaborations.

There is plenty to look forward to at this year's conference. Here are the key dates and event highlights for GeoCongress 2025. 

• Call for abstracts: Closes on 31 March 2025
• Early bird registration: Closes on 31 March 2025
• Final registration deadline: Closes on 22 June 2025

Event highlights:
• 23 and 24 June 2025: Pre-conference workshops and field trips
• 25 to 27 June 2025: Conference programme featuring keynote speakers, academic sessions, and networking opportunities

Registration fees:
• Standard registration: R3 500 (from 1 February 2025)
• Students and retirees: Flat rate of R500 (proof of registration required for students)

Additional costs:
• Workshops and one-day excursions: Visit the GeoCongress website for information on the costs

• Conference/gala dinner: R500

For more information, please contact us at secretariat@geocongress2025.org.za

News Archive

Discovery in Scorpius constellation may signify clean energy for Earth
2017-01-23

 Description: Discovery in Scorpius constellation may signify clean energy for Earth Tags: Discovery in Scorpius constellation may signify clean energy for Earth

Earlier this year, a group of international astronomers
announced the discovery of an exotic binary star system,
AR Scorpii. The system is in the Scorpius constellation.
Photos: Supplied

See article on Nature’s website 

In future, stargazers and astronomers will look at the Scorpius constellation near the Milky Way with new eyes. Earlier this year, a group of international astronomers announced the discovery of an exotic binary star system, AR Scorpii. The system is in the Scorpius constellation.

Prof Pieter Meintjes, researcher in the Department of Physics at the University of the Free State (UFS), worked with four colleagues on what he describes as a “wonderful discovery”. This sensational discovery, which could lead to the production of cleaner energy on Earth, will be published in the research journal, Nature, early in 2017.

Model developed to interpret new set of measurements
The exotic binary star which was discovered consists of a red dwarf and a white dwarf revolving around each other every 3,5 hours. The binary system showed very prominent pulsations of 117 and 118 seconds respectively. The pulsations can be explained by a bundle radiation produced by the white dwarf star.

“These new observations have shown that the radiation is strongly polarised, a sign that we are dealing with synchrotron radiation here. Synchrotron radiation is produced by electrons accelerated to extremely high energy levels in the magnetic field of the white dwarf star,” says Prof Meintjes.

He developed a theoretical model to interpret a new set of measurements that was taken by the 1,9 m telescope and the 10 m SALT telescope at the South African Astronomical Observatory (SAA0).

Totally unique phenomenon could contribute to energy production on Earth
“I further indicated that the interaction between the magnetic fields of the white dwarf star and the red dwarf star induces secondary processes that specifically describe the behaviour of the radiation in the radio band and infrared band accurately. AR Sco is the first white-red dwarf binary system of which all the pulsated radiation could be explained by the synchrotron process, which is totally unique,” says Prof Meintjes.

According to Prof Meintjes, the value of the model lies in the fact that the processes which produce the radiation in AR Sco, can also be applied to produce energy on Earth.

 

Plasma reactors are based on roughly the same processes which apply in AR Sco, and with refining, it could be utilised to generate electricity in future. This will be much cleaner than nuclear energy.

 

The model developed by Prof Meintjes explains all the radiation in the system – from radio waves to X-rays – in terms of electrons accelerated to extremely high energy levels by electric fields in the system, which then produce synchrotron radiation over a very wide band of the electromagnetic spectrum.

Prof Meintjes is currently working on a follow-up article examining the evolution of the AR Sco, in other words, the origin of such a unique system and the final state towards which it is evolving. “My vision for the immediate future is therefore to develop a model for the evolution of the source concerned,” he says.

 

 

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