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ter Haar, J.H. (author)In een kalkgroeve die ligt binnen de Siljan meteoriet inslagkrater te Zweden zijn bij een zoektocht naar fossielen een aantal merkwaardige, glanzende gesteente fragmenten gevonden. Deze losse fragmenten, schijnbaar afkomstig uit een sterk stratigrafisch verstoord kalk/mergelpakket, bleken in wisselende mate te bestaan uit glas en bezaten...report 1996
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Kuipers, T.T. (author)In het kader van een onderzoek in samenwerking met Rijkswaterstaat naar de kwaliteit van breuksteen is in het voorjaar van 1983 een bezoek gebracht aan de groeves Trechtingshausen, Mayen en Stockum in West-Duitsland. Hierbij bleek dat een geologische beschrijving van de groeves interessante bijdragen kon leveren aan het onderzoek. Doel van het...report 1983
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Driesprong, A. (author)This report summarizes the tasks carried out during my trainee period at the Department of Geography of Turku University (Finland). First of all I would like to thank professor Risto Kalliola for providing me this work placement and for supporting me when having questions, or any kind of problem. I also would like to say thanks to professor...report 2000
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Tonk, A. (author), Withagen, A. (author)At the Leschenault Peninsula, a reconstructed sea level curve showed a maximum sea level of 3 to 4 m above the present mean sea level during the middle Holocene. This did not agree with other sea level curves along the Western Australian coast, which were lower at that period. It was assumed that local tectonic uplift could be a reason for this...report 1999
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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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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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van Wetten, I.A. (author)Cyclic sedimentation caused by orbital forcing has been studied intensively within the marine domain. Within the terrestrial domain however, cycles are less evident which make it less clear whether deposition is orbital forced, but there are indications that this is also the case in the terrestrial domain. In the Purgatory Hill area, north...report 2012
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Huijgen, M. (author)The Kunlun Orogen is situated at the northern edge of the Tibetan Plateau in Qinghai, China. The focus of this study are the East Kunlun mountains, separated from the West Kunlun Mountains by the large sinistral Altyn Tagh fault. The East Kunlun Mountains are separated in three zones (the Southern Zone, Central Zone and Northern Zone) separated...report 2015
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Wever, Andries (author), Spetzler, Jesper (author)The effects of mis-positioning in time-lapse seismics aie studied, focusing on irregular sampling due to receiver mis-positioning and absence of data due to surface obstacles. Wavefield reconstruction is used to regularize data and to reconstruct data where data-gaps are present. The method is tested on time-lapse 2D synthetic and Troll streamer...report 2004
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van de Munt, M.J. (author)Stage op een ondergrondse mijn van Brunswick Mining & Smelting Corp. Ltd, Bathurst, New Brunswick, Canada. Het betrof een studie aangaande technologische en economische aspecten van de recovery van de rib en still pillars in een verlaten en geïsoleerd gebied van de mijn.report 1987
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Nanne, J.A.M. (author)The Bakhuis Granulite Belt (BGB) in the largest Proterozoic granulite-facies domain in northern South America. A metapelite area of 50-100 km2 in the NE of the belt shows orthopyroxene + sillimanite + quartz ± sapphirine with 8-10wt% Al2O3 in the orthopyroxene, characteristic for ultrahigh-temperature (UHT) metamorphism. Evidence for UHT...report 2013
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Verberne, B.A. (author)The island of Gossa in the Moldefjord, Norway, is a part of the Nordøyane Ultra High Pressure Metamorphic (UHPM) domain of the Western Gneiss Region (WGR). Here we report and discuss the results of a combined field- and laboratory study to the Gossa basement and allochthonous rocks, and in particular to the structural, metamorphic and...report 2009
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- van Loevezijn, G. (author) report 1984
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- Willemse, N.W. (author) report 1991
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van Bree, L.G.J. (author)One of the large and increasingly important global problems is coastal eutrophication. Human disturbances includes large-scale fertilizer use which increases the nutrient availability in many coastal areas and can lead to toxic algal blooms or ecosystem turnover. Detecting past human disturbances in an area can improve the understanding of the...report 2012
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Bakker, R.R. (author)The island of Timor, SE Asia is the result of Arc-continent collision of the Banda Arc with the Australian Continental margin. Shortening of the Australian plate strata leads to thickening of the crust. Assuming isostasy, this should cause uplift. We hypothesize that the uplift of Timor can be explained by the built-up of a fold-and-thrust belt....report 2010
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- de Jong, I. (author), Lieuw, H. (author) report 1992
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Tuinstra, K.B. (author)The reversal of the Earth’s magnetic field is a phenomenon that is not fully explained. Detailed volcanic records with high eruption rates that capture the behaviour of the Earth’s magnetic field, sampled in high resolution are scarce. Here we show the relative intensities of a mid-Miocene volcanic record, sampled in the East of Gran Canaria, in...report 2017
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Keijzer, F. (author)This is a study based on determining the stable isotope composition of fluid inclusions of cold- and warm-water corals from the Bahamas and Curaçao respectively. Geochemical data were obtained using a new online technique called the ‘Amsterdam Device’ which comprises δ2H and δ18O analyses of fluid inclusions with a continuous-flow crushing...report 2014
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Kaskes, P. (author)In August 2013, Naturalis Biodiversity Center in Leiden and the Black Hills Institute (Hill City, USA) excavated a new specimen of Tyrannosaurus rex on the Murray Ranch, south of Jordan, eastern Montana, USA. The partial skeleton of this famous carnivorous dinosaur was found in a fluvial sandstone deposit of the Upper Maastrichtian Hell Creek...report 2016