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10 November 2025 | Story Precious Shamase | Photo Supplied
Zandile Mncube
Dr Zandile Mncube presenting her research at the International Mountain Conference (IMC2025) at the University of Innsbruck, Austria.

In a remarkable milestone for both her academic and personal journey, Dr Zandile Mncube, a 27-year-old newly conferred PhD graduate from the University of the Free State (UFS), recently presented her research at the prestigious International Mountain Conference (IMC2025), hosted by the University of Innsbruck, Austria. The event marked not only her debut on the global research stage but also her first international trip and first flight – an experience she described as transformative. 

 

A mountain of research: From UFS weather stations to the global stage

Dr Mncube's journey to this international platform began with encouragement from Prof Ralph Clark, Director of the Afromontane Research Unit, and Dr Melissa Hansen, Lecturer in the Department of Geography, who recognised her potential and urged her to submit an abstract to the conference. 

"Prof Clark proposed that I write an abstract for this conference," Dr Mncube explained. “I had been managing the UFS weather stations and had just begun using their data, so I based my abstract on that work.” 

Her submission was accepted, earning her the opportunity to showcase her research alongside an impressive array of global scholars. The IMC2025, held biennially, brings together experts from across the world to discuss diverse aspects of mountain studies. Dr Mncube formed part of a strong South African delegation that included two students from UFS and one from the University of Cape Town (UCT).

"It was inspiring to see how diverse and multidisciplinary the field is," she said. "It was good to see that, as South Africans, we do fit into the global research stage and can hold our own through the quality of our work.”  

 

Vision for the future: expanding research horizons 

Having been part of the UFS community since 2017 - serving in various roles from student assistant to her current practical and research position – Dr Mncube is now looking ahead to further her research career.

"I want to explore more on the research side of things," she shared. “While I’ve gained valuable experience that could lead to lecturing, my immediate goal is to deepen my involvement in research and fieldwork within Geography.”   

 

A transformative experience and a call for greater support

Describing her participation at the IMC as a "transformative experience, both professionally and personally," Dr Mncube reflected on how it broadened her understanding of global scientific collaboration and highlighted the vital contribution of African researchers. 

She noted there remain "notable gaps in data and contextual understanding that African researchers are uniquely positioned to address," particularly in underrepresented mountain regions.

Dr Mncube strongly advocates for more South African students to be supported in attending international conferences. She observed that several of her peers at the IMC had earned recognition through the Southern African Mountain Conference 2025 (SAMC), further illustrating the value of regional and international engagement. 

"If more students are supported to attend conferences like IMC, it could open doors for them to engage in global research and collaborations that extend far beyond our borders," she said. 

Expressing her heartfelt appreciation, she concluded by thanking Prof Clark and Dr Hansen for their guidance and support, which made her international debut possible.

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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