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03 January 2023 | Story Charlene Stanley | Photo Supplied
Vuyelwa Vumendlini
Vuyelwa Vumendlini, Alternate Executive Director at the International Monetary Fund in Washington DC.

High-profile positions at National Treasury, the World Bank and now also the International Monetary Fund in Washington, mark an illustrious career for UFS Economics alumna, Vuyelwa Vumendlini.

“Go in full force, hands and feet, and accept this opportunity of a lifetime. You won’t regret it.” These words of Dr Minette Smit, her thesis supervisor, proved to be pivotal advice to a young Vuyelwa Vumendlini. At the time, she was doing her BCom Honours in Economics (1996-1999) and was presented with a scholarship opportunity to complete her master’s degree in the USA.

“I was afraid to leave my home and my comfort zone,” she explains. “But looking back, I’m extremely grateful to have taken that step.”

Her studies culminated in an appointment as Senior Adviser to the Executive Director at the World Bank, then Deputy Director-General: International and Regional Economic Policy at the National Treasury, and now as Alternate Executive Director at the International Monetary Fund (IMF) in Washington DC. As an IMF executive board member, Vumendlini represents 23 English-speaking African countries that are members of a constituency. The Executive Board of the IMF has 24 chairs, representing 24 constituencies from its 189 countries’ membership. Among her duties are considering policy issues and surveillance reports, as well as approving and monitoring IMF programmes involving lending and/or technical assistance.

Since this is the second stint in Washington for her and her children, Simphiwe, Enhle, and Anele, settling down was much easier. “Because of the COVID-19 isolation, we were kind of used to being alone at home, so we didn’t find the solitude that bad while we were still making new friends.”

She misses South African food the most – things like biltong and boerewors – and the proximity of favourite restaurants like Ocean Basket and Mugg & Bean. She has fond memories of her study years, working as an assistant in the Department of Economics, hanging out at Mooimeisiesfontein on Saturdays, and building rag floats for Vergeet-My-Nie and Kestell residences. Plans for the future include tackling her PhD in Economics.

Her advice to UFS students: “Be up to date with what is happening around you. Do not be afraid to do things differently. Be agile in your approach to achieving your career aspirations and be ready to take on those opportunities when they present themselves.”

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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