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Contact

Department of Human Evolution

Max Planck Institute for Evolutionary Anthropology

Deutscher Platz 6
04103 Leipzig

phone: +49 (341) 3550 - 350
fax: +49 (0341) 3550 - 399

e-mail: streiber@[>>> Please remove the brackets! <<<]eva.mpg.de


Debra Colarossi

Post-Doctoral Researcher

Max Planck Institute for Evolutionary Anthropology
Department of Human Evolution
Deutscher Platz 6
04103 Leipzig
Germany

phone: 0049 (0) 341 3550 862
fax: 0049 (0) 341 3550 399
e-mail: debra_colarossi@[>>> Please remove the brackets! <<<]eva.mpg.de

Profile
Curriculum Vitae
Publications

Profile

Debra Colarossi is a postdoctoral researcher specializing in optically stimulated luminescence (OSL) dating within the Department of Human Evolution. She has a strong background in luminescence dating and experience with multiple luminescence signals from both quartz and feldspar, including quartz OSL, quartz violet stimulated luminescence (VSL)  and K-feldspar post-infrared infrared stimulated luminescence (post-IR IRSL) at both multiple and single grain level. Her research focuses on utilising multiple luminescence chronometers to extend the upper age limit of the luminescence dating technique. Her strong luminescence background is complemented by extensive experience in geology, geomorphology and physical geography, having worked in numerous environmental settings.

Debra holds undergraduate degrees in teaching and geology. During her MSc research at the University of the Witwatersrand in South Africa she used OSL dating to establish the timing of deposition of tributary fan sediments, exposed in donga (gulley) systems, along the Nyl/Mogalakwena River in South Africa. This lead to her doctoral research at Aberystwyth University into the fundamental principles of luminescence dating and its application to determine the driving factors of deposition and erosion, and the switch between them, by accurately dating episodes recorded in Quaternary sediments. 

Debra joined the Department of Human Evolution in March 2017 were she will be responsible for dating archaeological sites across Europe and Africa. She is also keen to continue her research into the fundamental principles of multiple luminescence chronometers, with a view to extending the upper age range of the technique.

Curriculum Vitae

Education

2013 – 2017

Doctor of Philosophy (PhD), Aberystwyth University, Wales, UK

Title: Developing the use of luminescence chronometers to establish the timing of late Quaternary environmental changes in South Africa

Supervisors: Prof Geoff Duller & Prof Stephen Tooth

2011 – 2013

Master of Science (MSc) by research, University of the Witwatersrand, South Africa

Title: Geology and geochronology of the Nyl River floodplain sediments, Limpopo Province, South Africa

Supervisors: Prof Terence McCarthy & Dr Mary Evans

2010

Bachelor of Science with Honours (BSc (Hons) Geology) - with distinction, University of the Witwatersrand, South Africa

Title: Clay mineralogy and soil textures of Quaternary alluvial fan palaeosols on Heelbo game farm, eastern Free State, South Africa

Supervisors: Dr Mary Evans & Dr Zubair Jinnah

2007 – 2009 Bachelor of Science (BSc), University of the Witwatersrand, South Africa
2001 – 2006 Bachelor of Education (BEd), University of South Africa (UNISA), South Africa

Teaching experience

2016

Postgraduate demonstrator on undergraduate field trips: Rocks and Minerals course (1 week residential)
Aberystwyth University, Wales

2013 – 2016

Undergraduate practical demonstration: Rocks and Minerals course
Aberystwyth University, Wales

2013 – 2015 Academic tutor: Physical Geography & Environmental Earth Science courses         Aberystwyth University, Wales
2010 – 2012 Undergraduate practical demonstrations: Geology, Mapwork & Sedimentology courses
University of the Witwatersrand, South Africa
2010 – 2012 Postgraduate demonstrator on undergraduate field trips: Sedimentology & Structural geology courses (1 week residential), Introduction to geology course (series of 1-day excursions)
University of the Witwatersrand, South Africa

Grants and Awards

2013 – 2016 Aberystwyth University: Doctoral Career Development Scholarship (DCDS)
2015

Geological Society of South Africa (GSSA): Research, Education and Innovation (REI) award

British Society of Geomorphology (BSG): Postgraduate Research Grant Aberystwyth University: DGES Postgraduate Discretionary Fund

2014 Geological Society of South Africa (GSSA): REI award Quaternary Research Association (QRA): New Research Workers Award Aberystwyth University: DGES Postgraduate Discretionary Fund
2011 – 2012 National Research Foundation (NRF): Innovation Scholarship for Masters study University of the Witwatersrand: Postgraduate Merit Award for Masters study
2011Geological Society of South Africa (GSSA): REI award
2010 National Research Foundation (NRF): Innovation Scholarship for Honours study University of the Witwatersrand: Postgraduate Merit Award for Honours study
2011Geological Society of South Africa (GSSA): Haughton Award for the Best Honours Dissertation in South Africa for the previous year (2010)
2010University of the Witwatersrand: School of Geosciences Gold Medal for the most outstanding Honours (4th year) student in Geology
2007 University of the Witwatersrand: RA Pelletier Prize in Geology University of the Witwatersrand: School of Geosciences Bronze Medal for the best performing student in 1st year Geology

Training and Workshops

2016 Introduction to Palaeoclimate Modelling (NERC Advanced Training short course) 5 day course, Centre for Past Climate Change, University of Reading, UK
2015Quaternary Palaeoecology (NERC Advanced Training short course) 5 day course, Micropalaeontology Department, National History Museum, UK
2014BSG Windsor Postgraduate Workshop 3 day workshop, Cumberland Lodge, Windsor, UK
2013 Luminescence Dating: Theory, Methods and Applications 5 day course, Aberystwyth Luminescence Research Laboratory (ALRL), Aberystwyth University, Wales

Affiliations

Geological Society of South Africa (GSSA)
Quaternary Research Association (QRA)
British Society for Geomorphology (BSG)
The Mineralogical Society of Great Britain and Ireland (MinSoc)
Past Global Changes (PAGES)
Young Earth Scientists (YES) Network
Aberystwyth Luminescence Research Laboratory (ALRL)
Quaternary Environmental Change research group, Aberystwyth University

Publications

Articles

Colarossi, D., Chapot, M. S., Duller, G. A. T., & Roberts, H. M. (2018). Testing single aliquot regenerative dose (SAR) protocols for violet stimulated luminescence. Radiation Measurements,120, 104-109.
DOI    BibTeX   Endnote   
Colarossi, D., Duller, G. A. T., & Roberts, H. M. (2018). Exploring the behaviour of luminescence signals from feldspars: Implications for the single aliquot regenerative dose protocol. Radiation Measurements,109, 35-44.
DOI    BibTeX   Endnote   
Colarossi, D., Duller, G. A. T., Roberts, H. M., Tooth, S., & Lyons, R. (2015). Comparison of paired quartz OSL and feldspar post-IR IRSL dose distributions in poorly bleached fluvial sediments from South Africa. Quaternary Geochronology,30, Part B, 233-238.
DOI    BibTeX   Endnote   

Conference Papers

Colarossi, D., & Evans, M. Y. (2011). Palaeo-environmental characterisation using clay mineralogy: A case study of the Heelbo hillslope deposit, Free State Province and the Diepdrift hillslope deposit, Limpopo Province, South Africa. In G.-I.-E. Ekosse, L. de Jager, & V. M. Ngole (Eds.), An Innovative Perspective on the Role of Clays and Clay Minerals, and Geophagia on Economic Development. Book of Conference Proceedings of the 1st International Conference on Clays and Clay Minerals in Africa, and 2nd International Conference on Geophagia in Southern Africa, Bloemfontein, South Africa (pp. 191-198).
BibTeX   Endnote   

Meeting Abstracts

Ssebuyungo, C., Mavuso, S., Colarossi, D., Dogandzic, T., O’Brien, K., Ndiema, E., Braun, D. R., Ranhorn, J. W. H., & Ranhorn, K. L. (2020). GaJj17: A Middle Stone Age site at Koobi Fora, East Turkana (Kenya). American Journal of Physical Anthropology,171(S69), 272-272.
DOI    BibTeX   Endnote   

Talks

Colarossi, D., Duller, G. A. T., Roberts, H. M., Tooth, S., & Botha, G. A. (2016).Single grain quartz and feldspar ages for a key late Quaternary terrestrial archive: Voordrag, KwaZulu-Natal, South Africa. Talk presented at UK Luminescence and ESR Meeting (UKLUM2016). Liverpool, UK. 2016-07-10 - 2016-07-13.
BibTeX   Endnote   
Colarossi, D., Tooth, S., & Duller, G. A. T. (2016).Timing, patterns and drivers of late Quaternary environmental changes in the southern African interior. Talk presented at BSG Annual Meeting. Plymoth. 2016-09-04 - 2016-09-07.
BibTeX   Endnote   
Colarossi, D., Duller, G. A. T., & Roberts, H. M. (2016).Single grain equivalent dose measurements of feldspars from incompletely bleached sediments. Talk presented at UK Luminescence and ESR Meeting (UKLUM2015). Glasgow. 2016-07-07 - 2016-07-10.
BibTeX   Endnote   
Colarossi, D., Tooth, S., & Duller, G. A. T. (2015).New geochronological investigations of a key late Quaternary terrestrial archive: Voordrag, KwaZulu-Natal, South Africa. Talk presented at BSG Annual Conference. Southampton, UK. 2015-09-07 - 2015-09-09.
BibTeX   Endnote   
Colarossi, D., & Evans, M. Y. (2012).Case studies of the effect of insufficient light exposure on deriving the equivalent dose values for OSL dating of southern African sediments. Talk presented at 3rd International Symposium on Luminescence. Port Elizabeth, South Africa. 2012-07-01 - 2012-07-06.
BibTeX   Endnote   
Evans, M. Y., & Colarossi, D. (2012).A review of optically stimulated luminescence dating in southern Africa. Talk presented at 3rd International Symposium on Luminescence. Port Elizabeth, South Africa. 2012-07-01 - 2012-07-06.
BibTeX   Endnote