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30 December 2019 | Story Thabo Kessah | Photo Rian Horn
UFS Qwaqwa Campus
Hundreds of international botanists will be attending the 46th SAAB Annual Conference on the Qwaqwa Campus.

The University of the Free State Qwaqwa Campus is gearing up to host the 46th Annual Conference of the South African Association of Botanists from 7 to 10 January 2020. Talking about the choice of venue, Chairperson of the Local Organising Committee, Dr Sandy-Lynn Steenhuisen, said the unique setting in the shadow of the Maloti-Drakensberg Mountains highlights the Qwaqwa Campus as a fantastic base for interdisciplinary montane studies. “This is the home of the Afromontane Research Unit (ARU), and it will also give the delegates an opportunity to explore a treasure trove of botanical diversity on a post-conference tour to the top of the Amphitheatre in the Northern Drakensberg,” she said.

International delegates

“The conference will be attended by approximately 250 delegates representing at least 10 countries.  We are very excited to host two international and two national plenaries, namely Prof Peter Linder (University of Zürich), Prof Felipe Amorim (São Paulo State University – UNESP), Prof Annah Moteetee (University of Johannesburg), and our Young Botanist award winner from SAAB 2019, Ryan Rattray from GeneLethu Laboratories.”

SAAB 2020 is open to all researchers, industry partners, and citizen scientists from any botanical field. “The theme will embrace Qwaqwa’s cultural heritage by using the Sesotho phrase ‘Dimela ke bophelo’, which translates to ‘Plants are life’. This theme emphasises the dependence of all earthly life on plants. Delegates are offered the opportunity to book residence accommodation adjacent to the conference venue, and our conference organisers, XL Millennium, are eager to help with registration and any travel arrangements,” she added.

Botanists to be awarded

The conference will also be honouring botanists for their lifetime contributions to the field of plant sciences with the awarding of gold and silver medals, and the best doctoral thesis from the previous year with a bronze medal. These will be awarded during the gala dinner at the end of the conference.

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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