2018- Coordinator IRTG - StRATEGy
2016-2018 International projects Coordinator
2009-2015 PhD Student -Graduate School GRK1364
2013 – current Collaborator with the scientific coordination of the Department of Earth and Environmental Sciences,
University of Potsdam, Germany.
Organization and strategy development for a workshop in Geosciences, Geotechnology and Geoservices, in
cooperation with the Embassy of Colombia in Berlin, Berlin, 2015.
Assistance, planning and organization of the geosciences section during the Deutsch-Lateinamerikanischer
Technologietransfer (DeLaTec)-meeting, 2014, Potsdam, 2014.
Geoscience presentations for general audiences (e.g., hosting the visit of Argentine high-school students at
the University of Potsdam, Potsdam, 2013
Coordination and planning of a Colombian-German initiative in the area of geohazards, risk assessment,
and mitigation in Colombia, Bogotá, 2013.
2008 – 2009 General Manager - GMAS Ltd. Bogotá - Colombia
2007 – 2008 Geologist -GIS- AngloGold Ashanti Colombia. Bogotá - Colombia
2007 Diploma in Geology Universidad Nacional de Colombia. Bogotá - Colombia
2002- 2006 Student of Geology. Universidad Nacional de Colombia, Bogotá - Colombia.
2006 Teaching assistant, Geomorphology. Universidad Nacional de Colombia. Bogotá - Colombia
Morphotectonic evolution of the Kenya rift and erosion processes on different time scales using cosmogenic nuclides and (U-Th)/He dating
The East African Rift system is the archetypal young continental rift, and one the most widely studied on Earth. The rift constitutes a unique region in which to investigate the interplay between active rifting, erosion and sedimentation. Despite this, controversy remains as to the mechanisms and timing of rifting in the region. Most authors agree that active rifting has dominated the East African Rift system (EARs), and argue for the presence of one or more plumes in order to explain the amount of extension, timing and volume of volcanic rocks within the rift and adjacent regions. In addition to the tectonic driving forces of rift basin evolution, the EARs has become the focus of studies investigating the interaction between tectonic activity and climate on uplift. Significant feedbacks between the development of topography in the EARs beginning in the Miocene (?), East African climate, hominid evolution and the rate of rift shoulder exhumation have recently been proposed (Sepulchre et al., 2006; Spiegel et al., 2007; Wichura et al., 2010). On such long time scales it is unclear whether these feedbacks are related to regional uplift or localised rift flank evolution, as studies quantifying the Cenozoic rift evolution are limited. On shorter time scales, involving centennial, millennial time scales, however, it can be expected that tectonic forcing has played a more subdued role in generating and routing sediment in this environment when compared to the dramatic shifts in regional moisture availability. Several studies have shown that such shifts are associated with the dynamics of the dynamics of the African-Indian Summer Monsoon System (e.g., Trauth et al., 2005; 2009) and caused pronounced oscillations of lake levels (e.g., Garcin et al., 2009). Presumably, erosional efficiency, and changes in the transport capacity of fluvial systems also increased during that time. These variations may be recorded in the lake sediments themselves and in terrace and delta deposits associated with changing lake levels. It is at this juncture of the long-term and short-term erosion and sedimentation processes that this study is focused on.
2006 Teaching assistant, Geomorphology. Universidad Nacional de Colombia. Bogotá- Colombia
2014 Teaching assistant: Advanced structural mapping in the Pyrenees (Spain). University of Potsdam.
• Bernet, M., Torres Acosta, V., Bermudez M. A., Chapter 17: Dating mountain building: exhumation. Mountains, Climate and Biodiversity. Carina Hoorn, Allison Perrigo and Alexandre Antonelli (editors). 2018
• Garcin, Y., Schildgen, T.F., Torres Acosta, V., Melnick, D., Guillemoteau, J., Willenbring, J., Strecker, M.R. Corrigendum to; Short-lived increase in erosion during the African Humid Period: Evidence from the northern Kenya Rift. Earth and Planetary Science Letters. 457, 2017.
• Garcin, Y., Schildgen, T.F., Torres Acosta, V., Melnick, D., Guillemoteau, J., Willenbring, J., Strecker, M.R. Short-lived increase in erosion during the African Humid Period: Evidence from the northern Kenya Rift. Earth and Planetary Science Letters. 457, 2017.
• Torres Acosta, V., Bande, A., Sobel, E.R., Parra, M., Schildgen, T.F., Stuart, F., Strecker, M.R. Cenozoic extension in the Kenya Rift from low-temperature thermochronology: Links to diachronous spatiotemporal evolution of rifting inEast Africa. doi:10.1002/2015TC003949. Tectonics, v.34; 2015.
• Torres Acosta, V., Schildgen, T.F., Clarke, B.A., Scherler, D., Bookhagen, B., Wittmann, H., von Blanckenburg, F., StreckerM.R. The effect of vegetation cover on millennial-scale landscape denudation rates in East Africa. doi:10.1130/L402.1.Lithosphere,v.7; no. 4, 2015.
• Torres Acosta, V.
Denudation processes in a tectonically active rift on different time scales. PhD thesis. publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/8453; 2015
• Bande, A., Sobel, E.R., Mikolaichuk, A., Torres Acosta, V. Talas-Fergana Fault Cenozoic timing of deformation and its relation to Pamir indentation. doi:10.1144/SP427.1. The Geological Society, London, Special publications, 427, 2015.
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