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29 May 2025 | Story Martinette Brits | Photo Kaleidoscope Studios
Prof Hendrik Swart
Prof Hendrik Swart from the UFS Department of Physics was recently recognised by the Golden Key Honour Society Southern Africa as one of South Africa’s 300 most influential leaders.

Prof Hendrik Swart from the University of the Free State (UFS) Department of Physics was recently honoured at the Golden Key Honour Society Southern Africa’s Black Tie Gala Event, held on 23 May 2025. The event celebrated 300 of South Africa’s most influential leaders across academia, industry, government, and the financial sector.

Prof Swart, who is an NRF B1-rated researcher and currently also holds the SARChI Research Chair in Solid-state Luminescent and Advanced Materials (2023-2027), described the recognition as both meaningful and affirming at this stage of his academic journey.

“Being recognised by such a prestigious organisation is a meaningful acknowledgment of my academic efforts and personal dedication,” he says. “It was a moment of validation and inspiration, reminding me that hard work truly pays off.”

While the exact selection criteria were not publicly detailed, the emphasis was placed on academic excellence, scholarship, and leadership.

This is not Prof Swart’s first recognition from the Golden Key Honour Society. In 2012, the UFS student chapter awarded him honorary membership for his contributions as a mentor and supervisor – an early nod to his lasting impact on student success.

“The student chapter here on campus gave me some recognition by awarding me honorary membership,” he recalled. “It meant a lot to me as a mentor.”

The gala itself offered more than accolades – it created a space for meaningful exchange. Prof Swart reflected warmly on reconnecting with one of his former students from the early 2000s, calling it a highlight of the evening.

Looking ahead, Prof Swart welcomed the society’s plans to continue this initiative across the country.

“This was the first time they had an event like this, but more are expected to follow. I see it as a good initiative to mingle with other sectors in South Africa.”

News Archive

Scientists discover a water reservoir beneath the Free State
2009-12-09

Dr Holger Sommer

The Mantle Research Group Bloemfontein (MRGB), under the leadership of Dr Holger Sommer, a senior lecturer in the Department of Geology at the University of the Free State (UFS), has discovered an enormous water reservoir 160 km beneath the Free State.

This discovery, according to Dr Sommer, is the first of its kind in South Africa after he had previously made a similar finding in Colorado, USA.

However, this water cannot be used for human consumption. “It is not frozen water; it is not molecular water; it is not fresh water; it is not salty water; it is OH – water which is sitting in the crystal lattice,” he said.

He said the reservoir was comparable in size to Lake Victoria in Tanzania.
The researchers collected eclogites from the Roberts Victor (Rovic) Mine close to the town of Boshof, south-west of the Free State, for their study.

“The Rovic eclogites are rocks which represent former oceanic crust transported into the earth’s interior by complex plate tectonic processes about 2.0 billion years ago,” explained Dr Sommer.

“These rocks were finally carried back to the earth’s surface by volcanic (kimberlite) eruptions around 130 million years ago. Eclogitic rocks are therefore a window into the Earth’s interior.”

The question from the beginning for all MRGB scientists was: Is there water inside these rocks in such depth, and if so, where is it located?

To answer this question, Dr Sommer and his research fellows separated single mineral grains from eclogite samples and prepared about 100 micrometer (0,1 mm) thick rock sections. Afterwards, specific particle accelerator (Synchrotron) measurements were carried out in the city of Karlsruhe in Germany.

“And indeed, the MRGB found water inside the studied rocks from the Roberts Victor Mine,” he said. “The water was located in defect structures in crystal lattices and along boundaries between single mineral grains.”

“The occurrence of water at such depth would give first evidence that all water of the oceans could be stored five to ten times in the earth’s mantle.”
The study was conducted about a year ago.
 

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za
4 December 2009

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