Les variations du niveau de base entraînent une perturbation de la dynamique érosive d'un système continental. Une chute du niveau de base se traduit par la propagation d'une incision fluviatile vers l'amont entraînant un rajeunissement du paysage. Cette étude a pour but de montrer comment cette érosion affecte l'évolution d'un paysage, suivant les paramètres du système morphologique préexistant. Elle s'appuie sur un exemple préservé de chute du niveau de base de grande ampleur pendant la Crise de Salinité Messinienne en Méditerranée il y a 5.5 Ma. L'étude morphologique des incisions messiniennes couplée à une modélisation numérique montre qu'il existe une dichotomie entre la vitesse de croissance d'un réseau et ses effets sur l'évolution à long terme d'un paysage en présence d'une pente régionale préexistante. L'absence de pente régionale peut conduire à une modification drastique comme la capture de l'Atlantique au niveau de Gibraltar qui a entraîné la fin de la Crise Messinienne.

Herman Sörgel devised a plan, beginning in 1927, to usher in a new era of peace and prosperity for the whole of Europe. Atlantropa was his answer to the perceived threats that the European people faced from international competition, overpopulation, and lack of resources. The plan would have resulted in the lowering of the Mediterranean Sea and the ultimate creation of one continent comprised of the former Europe and Africa. Though the plan was never implemented, it poses a fascinating model through which historians may reconsider the time period between the end of the First and Second World Wars. This thesis examines some historical socio-political movements through the lens of Sörgel’s megaproject. Original publications from Herman Sörgel himself as well as those of two notable Atlantropa scholars, Alexander Gall and Wolfgang Voigt, explain in great detail the technical and sociological aspects of the plan. Additionally, theories from Jeffrey Herf, Richard von Coudenhove-Kalergi, and Dina Brandt aid in the understanding of the man who attempted to engineer Europe out of crisis. The following analysis reveals the difficulty in placing Herman Sörgel into any singular political or social movement in his time. Though he espoused some of the same rhetoric as that of the National Socialists and pan-European movements alike, he failed to conform to any particular group. The unwavering obsession with his project consumed all of Sörgel’s energies until his death in 1952. Though all-but-forgotten, the project offers an uncommon means by which to view a tumultuous time in Europe.

The aim of this thesis is to introduce the linguistic situation in Gibraltar. Main attention will be paid to the special local speech, which is traditionally called llanito. To describe this phenomenon in all contexts, it must be set in the historical-cultural and linguistic context. The thesis is structured in order to clarify this context. The introductory chapter outlines the history of Gibraltar, including a comprehensive overview of the most influential ethnic groups who greatly contributed to the origin and development of the specific Gibraltarian speech with their distinct languages and cultures. Topic of the third chapter are the problems associated with the very concept of llanito. Attention is paid to the questions of terminology - alternative names for llanito are gradually analyzed, namely yanito or gibberish etc., and also hypotheses associated with these names. The fourth chapter describes the language layers in which we find the most specific features of llanito (syntax, phonetics, vocabulary and phraseology), and the nature of these features. The next chapter focuses on two Yanito dictionaries, both dictionaries containing Gibraltar terms and fixed expressions. These dictionaries are the only existing data base for llanito. The final chapter describes the current linguistic...

This dissertation presents new evidence about Anglo-Moroccan relations in the late eighteenth and early nineteenth centuries, with particular reference to the development of the links between the Gharb region of Morocco and Gibraltar and the establishment of the Moroccan consulate there. This evidence is used to re-evaluate prevailing arguments about Moroccan isolationism, especially during the reign of Mawlay Sulaymān (r. 1792-1822), linking this to the nature of the Moroccan sultanate's foreign and trade policy over the longer term. It is argued that the Sīdī Muḥammad b. 'Abd Allāh's (r. 1757-90) well-known 'opening up' of the country should be seen not just as a response to European expansion, but also as a continuation of the sultanate's historical development as a state based partly on the control of trade. It is further argued that Mawlay Sulaymān and his successor Mawlay 'Abd al-Raḥmān (r. 1822-59) essentially followed Sīdī Muḥammad's policy. With reference to this context, the dissertation analyses the development of the Moroccan consulate in Gibraltar, including re-dating its initial establishment. The example of the consulate is also applied to reconsidering dominant assumptions about the role of religious discourse in limiting Morocco's contact with the outside world by assessing the wider social and economic context in which it operated, specifically the growth of trade between Gibraltar and the Gharb and the related development of a group of both Jewish and Muslim Moroccan merchants who partly conducted it. The dissertation finally assesses the political importance of these trade links and commercial interests, and how they influenced the operation of power and authority in the Gharb. The overall case is presented in the context of a critique of civilisational or culturalist approaches to the study of reactions to European expansion and modernity that prioritise cultural difference between Western and, in this case, Muslim societies. It is argued that the Straits of Gibraltar - a ubiquitous symbol of the supposed dividing line between different civilisations - actually illustrate the importance of the interaction between different societies for accurately understanding their development and the agency of actors on both sides.

Phoenician ships in the broadest sense of the word are the focus of this dissertation and it encompasses the entire period of both Phoenician and Punic seafaring. The study is quantitative, largely historical and archaeological, with the use of secondary sources as well as iconography. The origins of the Phoenician construction technique, the mortise-and-tenon joints, are investigated as well as the various types of Phoenician ships. These are analysed under the headings Merchant ships, Warships and Utility ships. The materials mentioned in Ezekiel’s prophecy about ‘The Ship Tyre’, are analysed, whether they fit the purpose for which they are mentioned. The production process of purple cloth with the use of Murex molluscs is described in detail including an analysis of the boats used to catch the molluscs. The possibility is investigated of whether the Ashkelon Dog Burials could be related to the Phoenician trade in dogs, and whether they could have served as ship dogs. Lastly the difficulties encountered in sailing through the narrow sea straits of the Mediterranean Sea are described, which are subject to Internal waves, affecting the surface water. / Old Testament & Ancient Near Eastern Studies / M. A. (Biblical Archaeology)

Phoenician ships in the broadest sense of the word are the focus of this dissertation and it encompasses the entire period of both Phoenician and Punic seafaring. The study is quantitative, largely historical and archaeological, with the use of secondary sources as well as iconography. The origins of the Phoenician construction technique, the mortise-and-tenon joints, are investigated as well as the various types of Phoenician ships. These are analysed under the headings Merchant ships, Warships and Utility ships. The materials mentioned in Ezekiel’s prophecy about ‘The Ship Tyre’, are analysed, whether they fit the purpose for which they are mentioned. The production process of purple cloth with the use of Murex molluscs is described in detail including an analysis of the boats used to catch the molluscs. The possibility is investigated of whether the Ashkelon Dog Burials could be related to the Phoenician trade in dogs, and whether they could have served as ship dogs. Lastly the difficulties encountered in sailing through the narrow sea straits of the Mediterranean Sea are described, which are subject to Internal waves, affecting the surface water. / Biblical and Ancient Studies / M. A. (Biblical Archaeology)

This thesis, structured in two parts, addresses a series of problems of relevance in the field of Spatial Geodesy. The first part delves into the application of satellite gravity data to enhance our understanding of water transport dynamics. Here, we present two significant contributions. Both are based on satellite gravity data but stem from different mission concepts with distinct objectives: time-variable gravity monitoring and high-resolution, accurate static geoid modelling. First, the fundamental notions about gravity are introduced and a brief summary is made of the different gravity satellite missions throughout history, with emphasis on the GRACE/GRACE-FO and GOCE missions, whose data are the basis of this work. The first application focuses on estimating water transport and geostrophic circulation in the Southern Ocean by leveraging a GOCE geoid and altimetry data. The Volume Transport across the Antartic Circumpolar Current is analyzed and the resulsts are validated validated using the in-situ data collected during the multiple campaigns in the DP. The second application uses time-variable gravity data from the GRACE and GRACE-FO missions to estimate the water cycle in the Mediterranean and Black Sea system, a critical region for regional climate and global ocean circulation. The analysis delves into the analysis of the different components of the hydrological cycle within this region, including the water flow across the Gibraltar Strait, examining their seasonal variations, climatic patterns, and their connection with the North Atlantic Oscillation Index. The second part of the thesis is more focused on data analysis, with the objective of developing mathematical methods to estimate the cross correlation function between two time series that are both unevenly spaced spaced (the sampling is not uniform over time) and observed at unequal time scales (the set of time points for the first series is not identical to the set of time points of the second series). Such time series are frequently encountered in geodetic surveys, especially when combining data from different sources. The estimation of the the cross correlation function for these time series presents unique challenges and requires the adaptation of traditional analysis methods designed for evenly spaced and synchronized time series. The two main contributions in this context are: (i) the study of the asymptotic properties of the Guassian Kernel estimator, that is the recommended estimator for the cross correlation function when the two time series are observed at unequal time scales; (ii) an extension of the stationary bootstrap that allows to construct bootstrap-based confidence intervals for the cross correlation function for unevenly spaced time series not sampled on identical time points.

The Station Creek Igneous Complex (SCIC) is one of the largest Middle-Late Triassic plutonic bodies in the northern New England Orogen of Eastern Australia. The igneous complex comprises of five plutons - the Woonga Granodiorite (237 Ma), Woolooga Granodiorite (234 Ma), Rush Creek Granodiorites (231 Ma) and Gibraltar Quartz Monzodiorite and Mount Mucki Diorite (227 Ma respectively), emplaced as high-level or epizonal bodies within the Devonian-Carboniferous subduction complex that resulted from a westward subduction along the east Australian margin. Composition of the SCIC ranges from monzogabbro to monzogranite, and includes diorite, monzodiorite, quartz monzodiorite and granodiorite. The SCIC has the typical I-type granitoid mineralogy, geochemistry and isotopic compositions. Its geochemistry is characteristics of continental arc magma, and has a depleted-upper mantle signature with up to 14 wt% supracrustal components (87Sr/86Srinitial = 0.70312 to 0.70391; Nd = +1.35 to +4.9; high CaO, Sr, MgO; and low Ni, Cr, Ba, Rb, Zr, Nb, Ga and Y). The SCIC (SiO2 47%-76%) has similar Nd and Sr isotopic values to island-arc and continentalised island-arc basalts, which suggests major involvement of upper mantle sourced melts in its petrogenesis. SCIC comprises of two geochemical groups - the Woolooga-Rush Greek Granodiorite group (W-RC) and the Mount Mucki Diorite-Gibraltar Quartz Monzodiorite group (MMD-GQM). The W-RC Group is high-potassium, calc-alkalic and metaluminous, whereas the MMD-GQM Group is medium to high potassium, transitional calc-alkalic to tholeiitic and metaluminous. The two geochemical groups of the SCIC magmas are generated from at least two distinct sources - an isotopically evolved Neoproterozoic mantle-derived source with greater supracrustal component (10-14 wt%), and an isotopically primitive mafic source with upper mantle affinity. Petrogenetic modeling using both major and trace elements established that the variations within respective geochemical group resulted from fractional crystallisation of clinopyroxene, amphibole and plagioclase from mafic magma, and late fractionation of alkalic and albitic plagioclase in the more evolved magma. Volcanic rocks associated with SCIC are the North Arm Volcanics (232 Ma), and the Neara Volcanics (241-242 Ma) of the Toogoolawah Group. The major and trace element geochemistry of the North Arm Volcanics is similar to the SCIC, suggesting possible co-magmatic relationship between the SCIC and the volcanic rock. The age of the North Arm Volcanics matches the age of the fractionated Rush Creek Granodiorite, and xenoliths of the pluton are found within epiclastic flows of the volcanic unit. The Neara Volcanics (87Sr/86Sr= 0.70152-0.70330, 143Nd/144Nd = 0.51253-0.51259) differs isotopically from the SCIC, indicating a source region within the HIMU mantle reservoir (commonly associated with contaminated upper mantle by altered oceanic crust). The Neara Volcanics is not co-magmatic to the SCIC and is derived from partial melting upper-mantle with additional components from the subducting oceanic plate. The high levels emplacement of an isotopically primitive mantle-derived magma of the SCIC suggest periods of extension during the waning stage of convergence associated with the Hunter Bowen Orogeny in the northern New England Orogen. The geochemical change between 237 to 227 Ma from a depleted-mantle source with diminishing crustal components, to depleted-mantle fractionate, reflects a fundamental change in the source region that can be related to the tectonic styles. The decreasing amount of supracrustal component suggests either thinning of the subduction complex due to crustal attenuation, leading to the late Triassic extension that enables mantle melts to reach subcrustal levels.