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Dating Lab Cape Town

By the time Dr Robyn Pickering had finished school she’d toured Sterkfontein Caves and read all palaeoanthropologist Richard Leakey’s books. Coupling her interests in geology and palaeoanthropology, Pickering qualified as an isotope geochemist and has dated some noteworthy fossil finds: Australopithecus sediba at Malapa, a significant South African hominid site, and a million-year-old fossil monkey from the Caribbean that vanished 3 ago. The results of the fossil monkey dating, work done while she was at the University of Melbourne, were announced just three months into Pickering’s UCT appointment at the Department of Geological Sciences.

This will be Africa’s first such facility and an asset to researchers in an era of tantalising fossil finds where dating is crucial for their placement in a chronology of evolution. Pickering’s special skills set is best illustrated by two photographs. In the other she has a helmet, climbing harness, ropes and carabiners, all set to abseil down to a cave at Pinnacle Point, a dizzying drop above the foaming sea at Mossel Bay.

application of radiocarbon dating, which John then pursued. Thus chemistry available, so in John accepted an invitation to head the Radiocarbon Dating Laboratory DSc conferred by the University of Cape Town in was.

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Dr Robyn Pickering

Dr Robyn Pickering is an isotope geochemist with an interest in palaeoanthropology and archaeology. Her postgraduate research at the University of the Witwatersrand is what kick-started her on-going work on the geology and dating of the caves in the Cradle of Humankind. Her desire to find a niche in her field led her to complete her PhD in Geochemistry at the University of Bern, Switzerland.

There she had the opportunity to develop the U-Pb dating technique to date young carbonate rocks, specifically from the hominin cave sites of South Africa.

Robyn Pickering, University of Cape Town dating to establish the ages of the caves in the Cradle of Humankind. We collected these flowstones from the various cave sites in the Cradle, took them back to the lab, then.

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Fossil dating expert to launch new uranium-series laboratory

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As a species, we humans have always been fascinated in where we came from. That misconception began to shift slowly from , when the modern discipline of palaeoanthropology — the study of our origins — was born in South Africa. In the years that followed palaeontologist Robert Broom found more fossils of adult individuals from Sterkfontein and other caves in the area we now know as the Cradle of Humankind , just outside Johannesburg.

But there are other types of rocks in the caves. Working with these, my colleagues and I used a method called uranium-lead dating to establish the ages of the caves in the Cradle of Humankind. This means we can narrow down the entire early human record of the Cradle to a few brief time windows between one and three million years ago. Caves are full of special rock types. There are stalagmites which grow up from the floors, and stalactites that hang down from the ceilings.

As drip water in the cave flows along the floor, rocks known as flowstones form — and as they do, the mineral uranium is locked up inside them, crystal by crystal. We collected these flowstones from the various cave sites in the Cradle, took them back to the lab, then extracted and concentrated the tiny amount of uranium present inside then, as well as the even tinier amount of lead which has been produced from the uranium decay.

This Uranium-lead dating is not new. My colleagues and I had to adapt the existing uranium-lead dating method specifically for the South African flowstones. In our recent Nature paper , we put together the biggest ever data set of ages for the Cradle caves and were able to thoroughly analyse these and look for patterns. Specifically, we asked whether all the caves were open to the surface for fossils to wash into them and collecting fossils at the same time — or if each acted as its own little ecosystem.

Dana Drake Rosenstein

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Staff and faculty are working remotely and all remain on email and able to set up phone and virtual meetings upon request. We are doing our best to respond to calls and emails when they come in and will respond to requests as soon as possible. Archaeological science, technology of ceramic and metal production, chronometry, ethnoarchaeology, science education.

PhD Dissertation at the University of Arizona is composed of several archaeometric projects on 15thth century archaeological sites in northeastern South Africa, including research in luminescence dating and ceramic petrography. Skip to main content. Undergraduate Support Graduate Support. Stephen L.

Conferences Relevant for Luminescence Dating

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1 Iziko Museums of Cape Town, South African Museum, Post Office Box 61, Cape Town, 5 Luminescence Dating Laboratory, Institute of Geography and Earth.

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The Dating Lab

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We use cookies on our website. To learn more about the cookies we use, please see our cookie policy. You can manage cookies via your browser settings. By continuing to browse the site you are agreeing to our use of cookies. Accept and Close. A major conference for the presentation and discussion of luminescence and electron spin resonance dating results is held every three years at various locations around the world.

The papers and posters presented at these conferences are normally published in special editions of Quaternary Geochronology and Radiation Measurements.

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