Rozprawy doktorskie na temat „Geomorphic processes”
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Abu-Maila, Y. S. "Geomorphic and hydrologic processes in Coombs Brook, Macclesfield Forest". Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378012.
Pełny tekst źródłaWilliams, Bethany Lynn. "The Role of Ecological Interactions in Saltmarsh Geomorphic Processes". W&M ScholarWorks, 2018. https://scholarworks.wm.edu/etd/1530192504.
Pełny tekst źródłaAnorov, Julie Margaret, i n/a. "Integrated Study of Coastal Wetland Characteristics and Geomorphic Processes in a South East Queensland Catchment". Griffith University. Australian School of Environmental Studies, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20060223.153104.
Pełny tekst źródłaAnorov, Julie Margaret. "Integrated Study of Coastal Wetland Characteristics and Geomorphic Processes in a South East Queensland Catchment". Thesis, Griffith University, 2004. http://hdl.handle.net/10072/365955.
Pełny tekst źródłaThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Australian School of Environmental Studies
Full Text
Michaelides, Katerina. "The effects of hillslope-channel coupling on catchment hydrological response in Mediterranean areas". Thesis, King's College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326964.
Pełny tekst źródłaLambert, Jeanne. "Coastal Processes and Anthropogenic Factors Influencing the Geomorphic Evolution of Weedon Island, Florida". Scholar Commons, 2006. http://scholarcommons.usf.edu/etd/3784.
Pełny tekst źródłaHester, Erich T. Doyle Martin W. "Impact of geomorphic structures on hyporheic exchange, temperature, and ecological processes in streams". Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,2641.
Pełny tekst źródłaTitle from electronic title page (viewed Oct. 5, 2009). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Curriculum in Ecology." Discipline: Ecology; Department/School: Ecology.
Phillips, Sally Elizabeth. "The interaction of geological, geomorphic and pedogenic processes in the genesis of calcrete". Title page, table of contents and abstract only, 1988. http://hdl.handle.net/2440/19052.
Pełny tekst źródłaSpizale, Jordyn A. "Geomorphic Evolution of Caminada Pass in Southeast Louisiana". ScholarWorks@UNO, 2013. http://scholarworks.uno.edu/td/1705.
Pełny tekst źródłaLondono, Ana Cristina. "Arid geomorphic processes revealed by erosion of pre-Columbian archaeological earthworks in Southern Peru". Cincinnati, Ohio : University of Cincinnati, 2008. http://rave.ohiolink.edu/etdc/view.cgi?acc_num=ucin1217365896.
Pełny tekst źródłaAdvisors: David Nash PhD (Committee Chair), Lewis Owen PhD (Committee Member), Mark Bowers PhD (Committee Member), Thomas Lowell PhD (Committee Member), David Keefer PhD (Committee Member) Title from electronic thesis title page (viewed Sept. 25, 2008). Includes abstract. Includes bibliographical references.
Londoño, Ana Cristina. "Arid geomorphic processes revealed by erosion of pre-Columbian archaeological earthworks in Southern Peru". University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1217365896.
Pełny tekst źródłaLlena, Hernando Manel. "Geomorphic responses to natural and human disturbances in a mountain catchment at multiple temporal and spatial scales". Doctoral thesis, Universitat de Lleida, 2019. http://hdl.handle.net/10803/668358.
Pełny tekst źródłaEsta tesis se centra en el estudio de la transferencia de agua y sedimentos desde las áreas fuente de sedimentos hasta las áreas de sedimentación a múltiples escales temporales (desde datos con una frecuencia de cinco minutos hasta información de un siglo) y espaciales (desde laderas hasta cuencas), y sus implicaciones en la morfología del cauce en la Cuenca del Alto Cinca (vertiente sur de los Pirineos). A escala de micro-cuenca, los datos de alta resolución obtenidos durante 5 años en dos badlands contrastados (0.3 ha cada uno) revelan como la lluvia controla los procesos erosivos asociados a la escorrentía superficial, mientras que las bajas temperaturas tienen una relación significativa con los procesos de movimientos en masa. La morfometría de estas superficies, conjuntamente con la cobertura vegetal, son factores clave que determinan los principales procesos geomorfológicos y los cambios topográficos asociados. Los principales procesos observados han sido secuencias de Erosión y Sedimentación (Cutting and Filling) y Movimientos Gravitacionales (Mass Wasting). Pese a que los badlands tienen un papel importante en la producción de sedimentos, el balance de sedimentos de la cuenca del rio Soto (10 km2) indica que estas superficies no siempre controlan la exportación de sedimentos a la salida de pequeñas cuencas de montaña con carácter intermitente. Esto principalmente se debe a la fluctuación de la conectividad funcional de la red de drenaje causada por la frecuencia y magnitud de los pulsos de agua y sedimentos durante las crecidas súbitas o flashy. La red de drenaje actúa como fuente y zona de almacenamiento de sedimentos, y es clave para entender las marcadas diferencias que hay en la proporción de sedimento que se exporta en relación a la producción o Sediment Delivery Ratio. Los cambios en los usos del suelo en muchas cuencas de montaña constatados desde los años 50 del siglo XX tienen un efecto directo en la generación de escorrentía (cantidad y magnitud) y en la producción de sedimentos. La mayoría de la superficie de la cuenca del Alto Cinca (1565 km2) ha sufrido forestación, que ha resultado en una reducción de la conectividad sedimentaria estructural. La construcción de terrazas afecta la conectividad mucho más que los cambios en la cobertura del suelo. A una escala más local, las terrazas pueden incrementar la conectividad debido a la convergencia de flujo producida por las propias estructuras, o por la caída de estas debido a su abandono. La construcción de carreteras modifica la pendiente y la red de drenaje, hecho que comporta cambios en la conectividad estructural, que a su vez pueden afectar a los procesos erosivos en las zonas vecinas. Así, los flujos de agua y sedimento en la cuenca del Alto Cinca han estado ampliamente modificados durante el último siglo, con implicaciones directas en la morfología del canal. Además, impactos locales derivados de las extracciones de áridos, construcción de escolleras y embalses también han condicionado la dinámica sedimentaria de este río, con un impacto directo sobre la morfología. Esta situación ha generado una metamorfosis de la morfología del río en la parte baja del Alto Cinca (12 km), cambiando de un patrón trenzado, muy dinámico, a un patrón más estable con una tendencia hacia el canal único. Los resultados obtenidos indican que el tramo de estudio está alcanzando un nuevo equilibrio morfo-sedimentario impuesto por los cambios en los flujos de agua y sedimentos ocurridos durante el último siglo, incluyendo las perturbaciones antrópicas que han modificado la geometría del canal y las características morfológicas del cauce. Se han observado un total de tres fases en su evolución: antes de 1927, el tramo de estudio se encontraba en una situación de casi-equilibrio, mayoritariamente controlada por las crecidas. Entre el año 1927 y 2012 el río se ha ajustado a las diferentes perturbaciones que ha tenido a múltiples escalas temporales y espaciales. Este ajuste se ha llevado a cabo mediante dos cambios contrastados en las características morfológicas. Finalmente, después del año 2012, los resultados indican que el río puede haber alcanzado un nuevo equilibrio, ajustándose a los flujos de agua y sedimento impuestos y la nueva configuración del canal. Esta tesis presenta innovadores métodos cuantitativos para el estudio de la producción de sedimentos y la transferencia entre los diferentes compartimentos de las cuencas fluviales. La principal novedad en la mayoría de los capítulos de la tesis recae en la elevada resolución de los datos obtenidos, tanto temporal como espacial. Los resultados obtenidos en esta tesis permiten entender mejor el funcionamiento de los sistemas fluviales y su evolución, aspectos clave para dar soporte y apoyo en la mejoría y gestión de cuencas hidrográficas de montaña.
This thesis focusses on the study of water and sediment transfer from sources to sinks at multiple temporal (from 5-min data to a century data sets) and spatial (from slope to catchment scales) scales and their implications for channel morphology in the Upper Cinca catchment, a mountain catchment located in the Southern Pyrenees. At the micro-catchment scale, our 5-year High Resolution Data Set of two contrasted badlands (around 0.3 ha each) reveal as rainfall control overland-surface flow processes while low temperatures have a significant relation with mass movement-based processes. Morphometry together with vegetation cover are key factors determining main geomorphic processes and associated topographic changes. Main observed geomorphic processes were Cutting and Filling and Mass Wasting. Although badlands may have an important role on sediment production, the 2-year sediment budget of the Soto catchment (10 km2) indicates that badlands do not always control the export of sediments at the outlet of small intermittent mountain catchments. This is mainly due to the fluctuation of the functional connectivity of the channel network caused by the frequency and magnitude of water and sediment pulses during flashy floods. The channel drainage network acts as sediment source and sink and it is key to understand marked differences in the Sediment Delivery Ration. Land use and cover in many mountain catchments have been modified since the fifties of the 20th century, having a direct effect on runoff and sediment production. Most of the area of the Upper Cinca catchment (1565 km2) has undergone afforestation, which resulted in a decrease of structural sediment connectivity. Terracing affects connectivity much more than changes in land cover. Terraces generally reduce connectivity due to the establishment of flat areas between slopes and, contrarily, locally, may increase connectivity due the convergence produced by the structures or the collapse of terraces due to abandonment. Road construction, however, modify slope and the drainage network, which leads to changes in connectivity that could affect erosional processes in the neighbouring areas. Thus, water and sediment fluxes through the Upper Cinca are spatially and temporal dynamic and have been dramatically modified in the last century, with direct implications on channel morphology. Additionally, localised disturbances such as gravel mining, channel embankments and dams have also impacted on sedimentary dynamics, thus channel morphology. This situation led to a river metamorphosis, changing from a braided pattern to a more static channel towards a wandering pattern. We hypothesise that the lowermost 12-km reach of the Upper Cinca has reaching a new equilibrium imposed by catchment-scale changes of water and sediment fluxes caused by global changes, but also influenced by localised human-disturbances that modify channel geometry and morpho-sedimentary characteristics. Three phases were identified: before 1927, the reach remained in a quasi-equilibrium state imposed, mainly, by water and sediment supply during flood events. During the period 1927-2012 the river adjusted to the disequilibrium imposed by disturbances acting at different temporal and spatial scales, yielding two contrasted channel states. Finally, after 2012, we hypothesise that the river may be reaching again a new equilibrium, adjusting to the imposed water and sediment fluxes and the new channel configuration. This thesis presents some novel quantitative methods for the study of sediment production and transfer between the different compartments of fluvial catchments. The main transversal novelty in all the methods used in each chapter lies in the high resolution of the data obtained. This comprehensive analysis aids at understanding the functioning of the river system and their evolution based on multiple-scale disturbances, which can help to support integrated watershed management practices or plans.
Rehak, Katrin. "Pliocene-Pleistocene landscape evolution in south-central Chile : interactions between tectonic, geomorphic, and climatic processes". Phd thesis, Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2008/1979/.
Pełny tekst źródłaLandschaften entwickeln sich im komplexen Zusammenspiel von Klima und Tektonik. Demzufolge können sie nur verstanden werden, wenn sowohl klimatische als auch tektonische Signale vergangener und rezenter Prozesse identifiziert werden. Um den Einfluss beider Faktoren zu bewerten, ist es deshalb wichtig, die Evolution geomorphologischer Marker in der Natur zu quantifizieren. Die känozoischen Anden sind eine ideale Region, um tektonische und klimatische Aspekte der Landschaftsentwicklung auf verschiedenen Zeit- und Längenskalen zu erforschen. Sie sind das Modell-Subduktionsorogen, assoziiert mit der Subduktion der ozeanischen Nazca-Platte unter den südamerikanischen Kontinent seit ca. 200 Mio Jahren. In Chile ist dieser konvergente Plattenrand geprägt von aktiver Tektonik, Vulkanismus und Gebirgsbildung. Bedeutenderweise ereignen sich entlang der Küste häufig Megaerdbeben, die die Landschaftsentwicklung stark beeinflussen. Tatsächlich ereignete sich das größte jemals aufgezeichnete Erdbeben mit einer Bruchzone von ca. 1000 km Länge 1960 im südlichen Zentralchile. Nichtsdestotrotz ist auf längeren Zeitskalen über historische Dokumentationen hinaus nicht bekannt, wie sich solche seismotektonischen Segmente verhalten und wie sie die geomorphologische Entwicklung der Küstengebiete beeinflussen. Mit semi-unabhängigen morphotektonischen Segmenten, wiederkehrenden Megaerdbeben und einer Fülle geomorphologischer Marker, die aktive Tektonik anzeigen, ist somit der Plattenrand von Chile ein Schlüsselgebiet für das Studium von Zusammenhängen zwischen Oberflächenprozessen und Tektonik. In dieser Arbeit kombiniere ich Geomorphologie, Geochronologie, Sedimentologie und Morphometrie, um die plio-pleistozäne Landschaftsentwicklung des tektonisch aktiven süd-zentralchilenischen Forearcs zu quantifizieren. Mit dieser Analyse liefere ich (1) neue Ergebnisse über den Einfluss seismotektonischer Forearc-Segmentierung auf die geomorphologischen Entwicklung und (2) neue Erkenntnisse über die Interaktion zwischen Klima und Tektonik bezüglich der Gestaltung des chilenischen Forearcs. Ich zeige, dass der Forearc in drei langlebige morphotektonische Segmente gegliedert ist, die nicht mit kurzlebigen Erdbebenbruchzonen korrelieren. Die Segmente heißen Nahuelbuta, Toltén und Bueno Segment, wovon jedes eine andere geomorphologische und tektonische Entwicklung durchläuft. Die Nahuelbuta und Bueno Segmente unterliegen aktiver tektonischer Hebung. Das langfristige Verhalten dieser beiden Segmente manifestiert sich in zwei beidseitig abtauchenden, wachsenden Antiklinalen, die integraler Bestandteil des Küstengebirges sind und die Hebung von marinen und fluvialen Terrassen aufzeichnen. Die Hebung verursachte weitreichende Veränderungen in den Fließrichtungen des Gewässernetzes. Im Gegensatz dazu ist das Toltén Segment, das sich zwischen den beiden anderen Segmenten befindet, quasi-stabil. Um die Hebung und Einschneidung in dem tektonisch aktiven Nahuelbuta Segment zu quantifizieren, habe ich eine Erosionsfläche und fluviale Terrassen in dem Küstengebirge mit kosmogenem 10Be und 26Al bzw. optisch stimulierter Lumineszenz datiert. Meinen Ergebnissen zufolge sind die spätpleistozänen Hebungsraten, die ca. 0,88 mm a-1 betragen, höher als die Oberflächenhebungsraten, die über die letzten 5 Mio Jahre mitteln und ca. 0,21 mm a-1 betragen. Diese Diskrepanz deutet an, dass die Hebung der Oberfläche räumlich und zeitlich sehr stark variiert und sich präferiert an Aufschiebungen konzentriert. Zusätzlich zeigen die Ergebnisse der Expositionsdatierung mit kosmogenem 10Be und 26Al, dass die morphotektonische Segmentierung im Pliozän etabliert wurde, zeitgleich mit dem Beginn der Hebung des Küstengebirges vor ca. 5 Mio Jahren infolge eines Wechsels des Subduktionsmodus von Erosion zu Akkretion. Schließlich habe ich vulkanische Klasten, die aus alluvialen Flächen im Längstal stammen, mit den stabilen kosmogenen Nukliden 3He und 21Ne datiert, um Aufschluss über die Faktoren zu erhalten, die die Sedimentablagerung im Forearc bestimmen. Meine Ergebnisse weisen darauf hin, dass diese flach einfallenden Oberflächen, die vor 150.000 bis 300.000 Jahren abgelagert wurden, in Zusammenhang mit Änderungen des Erosionsregimes in glazialen Episoden entstanden sind. Zusammenfassend zeigen die Daten, dass der heutige geomorphologische Ausdruck des Forearcs post-Miozän und eng mit einer klimatischen Überprägung des tektonischen Systems verknüpft ist. Der klimatische Einfluss spiegelt sich ebenfalls in der Topographie und dem lokalen Relief der Zentral- und Südanden wider. Beide Parameter variieren stark entlang des Plattenrandes, bestimmt durch den jeweils dominierenden Oberflächenprozess, der wiederum letztendlich vom vorherrschenden Klima abhängt. Allerdings reflektiert das Relief teilweise Oberflächenprozesse, die unter vergangenen Klimaten aktiv waren. Das betont die äußerst große Vorsicht, die nötig ist, wenn Landschaften als Spiegel des aktuellen Klimas interpretiert werden.
DeYoung, V. Nichole. "Modeling the geomorphic evolution of western Kauai, Hawaii, a study of surface processes in a basaltic terrain". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/MQ57281.pdf.
Pełny tekst źródłaDeAlteris, Joseph T. "THE SEDIMENTARY PROCESSES AND GEOMORPHIC HISTORY OF WRECK SHOAL, AN OYSTER REEF OF THE JAMES RIVER, VIRGINIA". W&M ScholarWorks, 1986. https://scholarworks.wm.edu/etd/1539616626.
Pełny tekst źródłaBridge, S. R. J. "The landscape scale spatial distribution of vegetation gradients in a mixedwood boreal forest, linking ecological patterns to geomorphic processes across scales". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq20820.pdf.
Pełny tekst źródłaVervloet, Roberto José Hezer Moreira. "Condicionantes morfológicos e estruturais na dinâmica fluvial da bacia hidrográfica do Rio Benevente - Espírito Santo". Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/8/8135/tde-22022010-165241/.
Pełny tekst źródłaThe study of watersheds in the humid tropical environment, has acquired great importance in recent decades due to growing demand for water resources planning. However, many studies have confused the concept of watersheds, believing that this was simply a network of interconnected channels that form the hydrography of the land, thus making it as simple cartographic unit of study. This commonplace is the use of concepts related to the studies of basins, causing serious confusion in the current academic productions. Assuming that the basins are territorial spaces of vertical and horizontal movement of water, the interconnected network of channels, as one of its main elements, we chose the basin of Rio Benevente to study the relationship between the dynamics of this river and its structural and morphological constraints. Based on the method of the Association and indeterminacy in geomorphologic Leopold and Langbein (1970), and through information from the technical and operational procedures of geomorphological partitioning and compilation of data from hydrographic parameters, could find that the sub-drainage systems that make up the total of the hydrographic basin, driven by evolving litoestruturas crystal and the tectonic proterozóico, therefore, the old organization, and that, apparently, show not suffer reactivations modern as to intervene in the evolution of sub-compartments of regional importance and the evolution of the network of river channels. Enough is thus concluded that the processes to fit the drainage, catch river, sectioning of litoestruturas, gênesis of knickpoints and evolution of longitudinal river profiles are associated with the dynamic of geomorphic processes differential,under litoestruturas of strong anisotropic nature and complex organization geotectônica. Fact responsible for the diversity of sub-compartments of important configuration and evolutionary dynamics of river systems of differential.
Pomeroy, Joseph Anthony. "The sedimentary and geomorphic signature of subglacial processes in the Tarfala Valley, northern Sweden, and the links between subglacial soft-bed deformation, glacier flow dynamics, and landform generation". Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13647.
Pełny tekst źródłaHilger, Ludwig [Verfasser], Michael [Akademischer Betreuer] Becht i Tobias [Akademischer Betreuer] Heckmann. "Quantification and regionalization of geomorphic processes using spatial models and high-resolution topographic data: A sediment budget of the Upper Kauner Valley, Ötztal Alps. / Ludwig Hilger ; Michael Becht, Tobias Heckmann". Eichstätt-Ingolstadt : Katholische Universität Eichstätt-Ingolstadt, 2017. http://d-nb.info/1139049062/34.
Pełny tekst źródłaByizigiro, Rutazuyaza Vaillant [Verfasser], i Thomas [Akademischer Betreuer] Raab. "Geomorphic processes associated with Small-Scale Opencast Mining and mitigation measures: case study of the Gatumba Mining District in the Western Highlands of Rwanda / Rutazuyaza Vaillant Byizigiro ; Betreuer: Thomas Raab". Cottbus : BTU Cottbus - Senftenberg, 2016. http://d-nb.info/1114284327/34.
Pełny tekst źródłaSantos, Pablo Grahl dos. "Mineralogia, gênese e relações pedo geomórficas de solos desenvolvidos de litologias das formações Pirambóia, Sanga-do-Cabral e Guará na região sudoeste do Estado do Rio Grande do Sul". Universidade do Estado de Santa Catarina, 2015. http://tede.udesc.br/handle/handle/2627.
Pełny tekst źródłaMade available in DSpace on 2018-03-23T16:50:55Z (GMT). No. of bitstreams: 1 PGCS15DA035.pdf: 8233837 bytes, checksum: 2bf2d66cbb50bb2bfe83751d86a81f26 (MD5) Previous issue date: 2015-09-25
Capes
The sustainable use of natural resources, with emphasis on soil exploration in conservation base, demand for detailed information on their characteristics and properties, as an indication of its quality, to recommend the correct land use and the best management system. The study aimed to characterization of the nature and properties of the main soils in the southwestern region of the State of Rio Grande do Sul – Brazil, establishing relationships between the physical and chemical attributes with your mineralogical constitution, and researching the causes of the variability of soil classes resultant from the dynamics of the processes considering the lithological variation and modeled of topographic surface. The area studied is situated in the Basin of Santa Maria River in Rosario do Sul County located at latitude 30°15'28" south and longitude 54°54'50" west, with an average altitude of 132 m, humid mesothermal climate, average annual temperature near to 20°C, and a rainfall in the range of 1300 mm. The cartographic base consisted of topographic charts, geological map, satellite imagery, digital elevation models, and support from global positioning system receivers and geographic information system. Geomorphometric variables maps were used for the correlation of the geomorphic surfaces with pedogenesis applying classic models to the compartmentalization of slopes. Topolithosequence were defined as from soil developed with lithology of the Pirambóia, Sanga-of-Cabral and Guará geological formations, choosing to the soil profiles based on types of source material, variations in relief and altitude. It was proceeded a general and morphological description of soil profiles and a horizons sampling collection for chemical, physical, mineralogical and sedimentological analysis, aiming to study the influence of relief forms and the different source materials in the genesis and mineralogical composition of the soil, as well as to understand and describe the main pedogenic processes actants in their evolution. It was observed that soils developed in the same geological formation, in function to lithological variations of the sedimentary package, can have different chemical and mineralogical composition. Furthermore, the differences between the soils also are due to the strong interaction of the source material to the type and intensity of pedogenic processes, influenced by the position they hold in the landscape, conditioned by the flow of water in the soil, as presumably have evolved under the same preterit climatic conditions
O uso sustentável dos recursos naturais, com ênfase na exploração do solo em base conservacionista, demanda por informações pormenorizadas das suas características e propriedades, como um indicativo da sua qualidade, para recomendar o uso correto do solo e o melhor sistema de manejo. O estudo teve como objetivo geral a caracterização da natureza e das propriedades dos principais solos da região sudoeste do RS, estabelecendo relações entre os atributos físicos e químicos com sua constituição mineralógica, e investigando as causas da variabilidade das classes de solos decorrentes da dinâmica dos processos, considerando a variação litológica e o modelado da superfície topográfica. A área de estudo está situada na bacia hidrográfica do Rio Santa Maria na cidade de Rosário do Sul-RS localizada a 30° 15′ 28″S e 54° 54′ 50″W, altitude média de 132 m, clima tipo Cfa, temperatura média anual próxima a 20 °C e índice pluviométrico médio de 1300 mm. A base cartográfica básica consistiu de cartas topográficas, mapa geológico, imagens de satélite, modelos digitais de elevação e apoio de receptores GPS e de SIG’s. Mapas de variáveis geomorfométricas foram utilizados para a correlação das superfícies geomórficas com a pedogênese aplicando-se modelos clássicos de compartimentação de vertentes. Foram definidas topolitossequências a partir de solos desenvolvidos de litologias das formações geológicas Pirambóia, Sangado- Cabral e Guará, escolhendo-se os perfis de solos com base em tipos de materiais de origem, variações no relevo e na altitude. Procedeu-se à descrição geral e morfológica dos perfis e a coleta de amostras de solo deformadas em cada um dos horizontes para análises químicas, físicas, mineralógicas e sedimentológicas, visando estudar a influência das formas de relevo e dos diferentes materiais de origem na gênese e na composição mineralógica dos solos, assim como compreender e descrever os principais processos pedogenéticos atuantes na sua evolução. Observou-se que solos desenvolvidos da mesma formação geológica, em função de variações litológicas do pacote sedimentar, apresentam composição química e mineralógica diferente. Além disso, as diferenças entre os solos também se devem à forte interação do material de origem com o tipo e intensidade dos processos pedogênicos, influenciados pela posição que ocupam na paisagem, condicionados pelos fluxos de água no solo, já que supostamente evoluíram sob as mesmas condições climáticas pretéritas
McConnico, Tim. "The terraces of the Conway Coast, North Canterbury: Geomorphology, sedimentary facies and sequence stratigraphy". Thesis, University of Canterbury. Geological Sciences, 2012. http://hdl.handle.net/10092/7373.
Pełny tekst źródłaScarfe, Bradley Edward. "Oceanographic Considerations for the Management and Protection of Surfing Breaks". The University of Waikato, 2008. http://hdl.handle.net/10289/2668.
Pełny tekst źródłaPhillips, Sally Elizabeth. "The interaction of geological, geomorphic and pedogenic processes in the genesis of calcrete". Thesis, 1988. http://hdl.handle.net/2440/19052.
Pełny tekst źródłaThesis (Ph.D.) -- University of Adelaide, Dept. of Soil Science, 1988
Beggerly, Patricia Price. "Kahana Valley, Hawaiʻi, a geomorphic artifact : a study of the interrelationships among geomorphic structures, natural processes, and ancient Hawaiian technology, land use, and settlement patterns". Thesis, 1990. http://hdl.handle.net/10125/9333.
Pełny tekst źródłaRose, Teresa. "Processes, rates and pathways to recovering river channel functions through geomorphically effective floods: a case study of the highly regulated Snowy River downstream of Jindabyne Dam, Australia". Thesis, 2017. http://hdl.handle.net/1959.13/1337655.
Pełny tekst źródłaThe main purpose of this research was to determine how river channel functions in the gorge and upland reaches of the highly regulated Snowy River might recover after experimental floods and natural floods from the downstream residual catchment, since Jindabyne Dam closed in 1967. By quantifying the geomorphic effectiveness of various floods at the site, channel unit and cross-section scales, the processes and rates of adjustment with time were determined for channel width, depth, conveyance capacity and surface bed sediment size. This enabled the rates of adjustment and pathways to suitable recovery target endpoints to be quantitatively modelled. Current recovery models are based on few observations and measurements and are lacking well-articulated endpoints. This lack of understanding of channel recovery processes, rates and pathways, limits predictions that could assist in the management of this river. Channel adjustment was spatially and temporally complex. Adjustments were through different processes, at different rates and on different pathways in response to floods with different flood power characteristics. The ‘most geomorphically effective’ floods had high peak stream power (69-77 W/m²), long duration (49-280 days), moderate to large total energy expenditure (78610-128441 Joules x 10³), high peak discharges (126-447 cumecs), and multiple high discharge peaks on the rising and falling limbs of the hydrograph. These floods have disrupted the dynamic equilibrium after nearly 50 years of de-watering. By world standards these floods may seem small, but for the Snowy River, this disequilibrium has returned some river channel functions. Consistent and statistically significant geomorphic adjustment trends occurred in runs, with time but not in riffles, pools and pool-tails. Runs offer the most accurate indicators of channel widening, deepening, increasing conveyance capacity and sediment coarsening. Most run cross-sections selected were predicted to recover to average target endpoints by 2038 ±10 years (allowing for bushfire and flood) if up to 23 ±1 more, ‘most geomorphically effective’ floods are released annually from Jindabyne Dam. A new dynamic equilibrium for most runs might then be reached if adjustment trends in the four geomorphic variables are consistent. Once most run average target endpoints are reached, other ‘moderately’, or ‘less’ geomorphically effective floods can be released for channel maintenance and bank building. Phragmites had the right combination of root-sediment properties to best stabilise the overbank flood deposits that form the new banks of the Snowy River.
Rehak, Katrin [Verfasser]. "Pliocene Pleistocene landscape evolution in south central Chile : interactions between tectonic, geomorphic, and climatic processes / Katrin Rehak". 2008. http://d-nb.info/990623769/34.
Pełny tekst źródłaLU, ZHI-MING, i 盧誌銘. "Remote sensing technology applied to the geomorphic processes study of tidal flats along the central western coast of Taiwan". Thesis, 1991. http://ndltd.ncl.edu.tw/handle/45353509648910962462.
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