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Engels, S. (author)In the summer of 2001 a research project studying modem and historical aeolian deposition rates was carried out in the Kangerlussuaq-region, West Greenland. Modern deposition rates were monitored using 20 modified Tauber traps. The traps were placed on two perpendicular transects to assess the spatial variability in deposition rates. They were...report 2003
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- van Straaten, Bram (author), Wiggers de Vries, Daphne (author), van Roermund, Herman (author), Drury, Martyn (author) report 2003
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- Beenke, Hugo (author) report 2003
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Louzada, K.L. (author)This report presents new whole-rock geochemical data on 45 samples from the upper part of the ~3450 Ma Hooggenoeg Formation of the Barberton greenstone belt, Kaapvaal Craton, South Africa. The study attempts to constrain the magmatic evolution of the felsic upper part of the Hooggenoeg Formation. Considerable controversy exists concerning the...report 2003
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Op initiatief van de aai'dwetenschappelijke studies aan de Universiteit van Amsterdam, Vrije Universiteit, Universiteit Utrecht, TU Delft en Wageningen Universiteit is het project Aarde.Nu in het leven geroepen. Dit project heeft tot doel leerHngen in de Tweede Fase voortgezet ondemijs te laten kennismaken met actuele, aaidwetenschappelijke...report 2003
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Verbeek, S.A. (author)Coral proxy records have increasingly been used in reconstructing fluctuations and variability in a wide range of environmental parameters. Natural changes, such as induced El Nino Southern Oscillation (ENSO) effects have affected the natural sedimentation patterns, notably via accelerated or decelerated runoff and associated sediment supply to...report 2003
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Van der Ploeg, M.J. (author)Svalbard has an arctic climate and glaciers cover about 60% of the land. The almost continuous permafrost layer prevents groundwater recharge in most places on Svalbard. Groundwater recharge takes place under glaciers where the base is at melting point. The Vestre Lovénbreen is a small glacier near Ny-Alesund in the northwestern part of...report 2002
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Lenssen, T. (author)In order to interpret palynological records from the late-Quaternary and Holocene correct, a good understanding of pollen production and dispersal efficiency in tundra vegetation is necessary. Yet, only few studies in the arctic have dealt explicitly with the question of pollen transfer processes to lake sediments and aspects of representativity...report 2002
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Brunt, R. (author)The aim of this project is to find out what caused the differences in geometry of quartz boudins in marbles. The project is focussed on the influence of the layer thickness the elastic modulus of the layer and the competence ratio (layer to matnx) on the geometry of the boudins. Samples of the Ugab and Goantagab Valley in Namibia were analysed....report 2002
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Schulte, S. (author)It has long been noted that many earthquakes within so-called Stable Continental Regions (SCRs) occur within extended crust. The EPR1 (1994) definition of an SCR is a region that has not experienced any orogenic activity or anorogenic intrusions since the early Cretaceous and no rifting or major extension/transtension since the Paleogene. In...report 2002
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Strik, L.A. (author)This paper deals with mass movements resulting from hillslope instability and sediment yields of mass movements, derived from evidence of sedimentation rates in lakes. The purpose of this paper is to look into and compare different mass movement and lake sedimentation researches and to gain knowledge of the geomorphology of some mountain ranges...report 2002
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Hogeweg, N. (author)The Valley of Ten Thousand Smokes (VTTS) in Alaska was filled by a voluminous ash-flow tuff in 1912. In 1987 the chloride rich mid-valley thermal springs (MVTS) were discovered, indicating a persistent heat source at depth. A previous study proposed that the heat source is a cooling welded tuff unit (Keith et al., 1992). Discharge, temperature,...report 2002
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Veldmeijer, A.J. (author)A new species of pterosaur, Coloborhynchus spielbergi sp. nov. (Pterodactyloidea), from the Romualdo ember (Albian) of the Santana Formation is described. The type consists of the skull, mandible and many of the post-cranial bones. The specunen displays a high degree of co-ossification indicating that the animal was an adult and likely quite old...report 2002
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Simon, Nina (author)The aim of the field work carried out in 2002 was to perform a petrological comparison between an extensive collection of peridotite xenoliths from Archaean sub cratonic lithosphere beneath Southern Africa and garnet peridotite bodies in the Western Gneiss Region of Norway.report 2002
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Zeeman, J.H. (author), Groenenboom, J. (author), Van der Kruk, J. (author)This paper aims at improving imaging algorithms for ground penetrating radar data. Recent efforts try to achieve this by incorporating the electromagnetic vector propagation, describing the source and receiver antenna as far field point-source radiation patterns. Here, we show that a theoretically sound imaging operator can be constructed based...report 2001
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Favier, T. (author)This report deals with the results of a traineeship carried out as part of the MSc. program of Physical Geography at the Faculty of Geographical Sciences at Utrecht University. In this report, a review is presented of the tidal characteristics in the Bahia Bianca Estuary, a mesotidal coastal plain estuary in the southwest of the Buenos Aires...report 2001
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Brommer, M. (author)In augustus en september 2001 is door mij veldwerk verricht in West-Groenland, wat mede door de financiering van het Molengraaff fonds mogelijk is geworden. Ik heb aan het GALE-project (Greenland Arctic Lake Experiment) onder leiding van dr. N. Willemse, Universiteit Utrecht, mee kunnen doen in het kader van mijn studie fysische geografie aan de...report 2001
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De Leeuw, Diana (author)This report contains the results of the data that were obtained during field work in the oldest recognized greenstone unit, the Warrawoona Group (3.47-3.4 Ga), in the Coongan greenstone belt and the Warrawoona greenstone belt, in the East Pilbara in Western Australia. The rocks that constitute the greenstone belts are assumed to be deposited...report 2000
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- Schulp, A.S. (author), Kennedy, W.J. (author), Jagt, J.W.M. (author), Hanna, S.S. (author) report 2000
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Van Wijk, W. (author), Maljers, D. (author)As an optional part of the M.Sc. program of the study Physical Geography, Utrecht University, a traineeship can be done in a foreign country. Because of our background, we both are specialised in Quaternary Geology and Climate Change, and our interests, which are mainly in subarctic environments, we have been looking for a traineeship, which...report 2000