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Academic literature on the topic 'Geomorfologia glacial'
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Journal articles on the topic "Geomorfologia glacial"
Sartori Bogo, Rodrigo. "RELATO DE EXPERIÊNCIA EM TRABALHO DE CAMPO NA SERRA DA ESTRELA, PORTUGAL: evidências geomorfológicas de atividades glaciais e periglaciais." InterEspaço: Revista de Geografia e Interdisciplinaridade 5, no. 16 (April 30, 2019): 9353. http://dx.doi.org/10.18764/2446-6549.2019.9353.
Full textKellem da Rosa, Kátia, Rosemary Vieira, Guilherme Borges Fernandez, Felipe Lorenz Simoes, and Jefferson Cardia Simoes. "Formas glaciales y procesos glaciológicos del glaciar templado Wanda, Shetland del Sur." Investigaciones Geográficas, no. 43 (January 1, 2011): 3. http://dx.doi.org/10.5354/0719-5370.2011.18494.
Full textDurand Castro, David, Fabriciano La Torre Ruiz, Carmen Villón Reinoso, and José Pasapera Gonzales. "Geomorfología de la microcuenca Pastoruri- Cordillera Blanca." Investigaciones Sociales 13, no. 23 (June 11, 2014): 59–77. http://dx.doi.org/10.15381/is.v13i23.7223.
Full textRoig-Munar, Francesc Xavier. "Reseña de Xeomorfoloxía e paisaxes xeográficas, catro décacas de investigación e ensino: homenaxe a Augusto Pérez Alberti." Investigaciones Geográficas, no. 73 (June 23, 2020): 305. http://dx.doi.org/10.14198/ingeo2020.rm2.
Full textMelendez de la Cruz, Juan Felipe. "Geomorfologia y peligros de la subcuenca del rio Auqui (Calcayhuanca), Huaraz, Ancash." Investigaciones Sociales 12, no. 21 (June 11, 2014): 145–60. http://dx.doi.org/10.15381/is.v12i21.7193.
Full textPérez Alberti, Augusto, and Marcos Valcárcel Díaz. "Geomorfología del valle glaciar de Balouta (Ancares leoneses - NW de la Península Ibérica)." Polígonos. Revista de Geografía, no. 6 (February 28, 2014): 157. http://dx.doi.org/10.18002/pol.v0i6.1078.
Full textMoragues, S., M. G. Lenzano, S. Moreiras, and L. Lenzano. "Geomorfología paraglacial asociada a la inestabilidad de laderas en el Brazo Norte del Lago Argentino, Patagonia, Argentina." Cuadernos de Investigación Geográfica 45, no. 1 (June 18, 2019): 367. http://dx.doi.org/10.18172/cig.3786.
Full textGracia Prieto, Francisco Javier. "Evolución Geomorfológica de la región de Gallocanta (Cordillera Ibérica Central)." Geographicalia, no. 30 (April 21, 2017): 3. http://dx.doi.org/10.26754/ojs_geoph/geoph.1993301806.
Full textLavor, Larissa Fernandes de, Vinicius Ferreira de Lima, Magno Erasto de Araújo, and Virginio Henrique de Miranda Lopes Neumann. "GEOMORFOLOGIA DA PORÇÃO TERMINAL DO BAIXO CURSO DO RIO PARAÍBA DO NORTE-PB." Revista de Geociências do Nordeste 6, no. 2 (September 24, 2020): 112–25. http://dx.doi.org/10.21680/2447-3359.2020v6n2id18685.
Full textMalaroda, Roberto. "Glacialismo e Geomorfologia del fianco destro della Valdeblore (Alpes Maritimes, Francia). Origine di un rock glacier." Rendiconti Lincei 15, no. 3 (September 2004): 169–74. http://dx.doi.org/10.1007/bf02904458.
Full textDissertations / Theses on the topic "Geomorfologia glacial"
Perondi, Cleiva. "Análise da eolução do ambiente proglacial das geleiras Ecology, Sphinks, Baranowski, Tower e Windy, Ilha Rei George, Antártica." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/180993.
Full textThis dissertation aims to investigate the proglacial geomorphological evolution (Ecology, Sphinx, Baranowski, Tower and Windy glaciers) in the western sector of Warszawa Ice Cap (62°12’0” S 58° 30’ 0” W), Admiralty Bay coast, King George Island, Antarctica between 1956 and 2017. Data obtained by remote sensors, such as Aster GDEM2, Sentinel-2 (2017) and WorldView-2 (2014) images, were applied in geomorphological mapping of the proglacial mesoscale landforms. Glacial retreat and fluctuations of glaciers areas were estimated (using Sentinel-2 images, acquired in 2017, WorldView-2 data, acquired in 2014, and outline data of the 1956, 1979, 1988 and 2000). The results evidenced the continuous retreat processes in period for Ecology, Sphinx, Baranowski, Tower and Windy glaciers, with of 33%, 25%, 37%, 71% and 30% of the area lost, respectively. The Windy glacier changed of outlet glacier for land terminus conditions in latest decades, with a recent proglacial environment development. In response to glacial retreat processes there is a glacial landforms exposition in new ice-free environments in the study area. Was recorded an increase of the 6.3km² in ice-free land areas between 1956 and 2017 in in the western sector of Warszawa Ice Cap. As response the retreat processes there are the development of the glacio-fluvial drainage network, glacio-lacustrine landforms and the formation of proglacial ice marginal environments with lateral moraines, lateral-frontal moraines, frontal moraines, eskers. Recent ice-free areas are susceptible to gravitational, wind and pluvial reworking process. Three stages of evolution of the proglacial environments of the glaciers associated with the geomorphological features formed in each phase and environmental changes in response the glacier retreat was determined. Was detected the succession of proglacial for paraglacial and periglacial environments as evidence of the environmental change.
Bordonau, i. Ibern Jaume. "Els complexos glàcio-lacustres relacionats amb el darrer cicle glacial als Pirineus." Doctoral thesis, Universitat de Barcelona, 1992. http://hdl.handle.net/10803/21784.
Full textA regional synthesis of the glacial phases corresponding to the last glacial cycle in the Pyrenees is presented in this work. Moreover, an absolute chronology for each one of these phases is proposed: • The Premaximum stabilization phases are previous to 50000 years BP. • The Glacial maximum phase is placed between 45000-50000 years BP. - The Postmaximum stabilization phase is placed between 31000-45000 years BP. - The Valley-glaciers phase is previous to 26000 years BP. • The Altitude-glaciers phase is placed between 13000-16000 years BP. - The Rock glaciers phase is placed between 10000•11000 years BP. - The Little Ice Age is placed between 100-300 years BP. It is convenient to highlight that the age of the last glacial maximum in the Pyrenees, as it happens in the Vosgues massif (Seret et al., 1990), is clearly diachronic with the age of the last glacial maximum established for the northern Europe and northern America continental ice-sheets around 18000 years BP. The main glaciolacustrine environments related to the last glacial cycle in the Pyrenees are also described. Several proglacial and juxtaglacial sedimentary complexes have been chosen as type-localities for this study: - The proglacial moraine-dammed complex of Seminari de Vilaller (Noguera Ribagorçana basin). - The proglacial complexes related lo overdeepened basins of Barruera (Noguera de Tor basin), Bono (Noguera Ribagorçana basin), Benasc (Ésera basin) and Esterri d'Aneu (Noguera Pallaresa basin). - The juxtaglacial complexes of Llestui (Noguera Ribagorçana basin) and Cerler (Ésera basin). The main results of this work are synthesized in a figure (see fig. VlII.1) which correlates the proposed chronology for the last glacial cycle in the Pyrenees with the sedimentary sequences and the evolution of the several glaciolacustrine complexes studied.
Rosa, Kátia Kellem da. "Dinâmica glacial, sedimentológica e variações ambientais em geleiras na enseada Martel, Ilha Rei George, Shetlands do Sul." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/61917.
Full textThis thesis investigates the glacial and proglacial dynamics related to glacier retreat processes in Martel Inlet, Admiralty Bay, King George Island (KGI). Geomorphic, hydrological, geophysics, Remote Sensing and Geographic Information System data sets reveal the local glacial and sedimentary dynamics as a reflection of the climate variability. A reconstruction map of past glacial extension indicates that glaciers lost nearly 13.2% of its area from 1979 to 2011 (50.3 km² total). Dobrowolski, Wanda, Dragon and Professor glaciers, in Martel Inlet, presented the highest annual losses (up to 75 m² a-1). Retreat processes generated perceptive environmental changes, for example sedimentary dynamics in the study area. The Wanda Glacier shows significantly suspended sediment discharge for a glaciomarine environment (19.4 x 10-3 kg s-1). GPR (Ground Penetration Radar) data (100 MHz) provided information about internal structure, drainage system development and liquid water storage in the Wanda Glacier. The strong scattering of the radio waves are attributed to supraglacial, englacial and subglacial meltwater channels and constitutes further evidence that the ice in the ablation area of this glacier is temperate. As a consequence of the general glacier retreat, large glaciarized areas became ice-free, exposing glacially eroded and deposits landforms (U shaped valleys, lateral and end moraines, flutings, aretes, morainal bank). This work presents a geomorphologic mapping, Digital Elevation Model (DEM) (0.7 m of the resolution), morphometric maps and topographic profiles for the study area. The application of several filters in COSMO-SkyMed images, at HH and VV polarizations, was suitable for recognizing glacial geomorphological features and monitoring of paraglacial processes. A spatial distribution mapping of glacial landforms is important to infer about glaciarized former areas, ice retreat pattern and glacial dynamics (e.g. ice flow direction and basal thermal conditions) of the Admiralty Bay glaciers. Recent environmental changes are also observed in deglaciated areas as paraglacial activities (e.g. flow debris).
Correia, Ricardo Lionel Gonçalves. "Detailed seafloor morphology of the East Antarctic continental shelf, between 128º and 134ºE." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/18063.
Full textDados de batimetria multifeixe e de sísmica de alta resolução, adquiridos na plataforma continental da Antártida, região Este, permitiram o reconhecimento de aspetos geomorfológicos derivados da dinâmica glaciar associada a um manto de gelo mais extenso no passado. No âmbito do projeto científico Norte-americano, Vulnerability of East Antarctic ice shelves da NSF (National Science Foundation), e do projeto EAIS-MARGINS do Programa Polar português (PROPOLAR), foi realizada a interpretação e análise quantitativa dos diversos aspetos morfológicos através da morfometria e análise estatística, com o objetivo de melhor entender a dinâmica do manto de gelo no passado. A área de estudo inclui um segmento da plataforma continental compreendida entre os glaciares Frost e Dibble (128ºE e 134ºE). Os dados foram adquiridos na campanha de investigação NBP1503 em Abril de 2015, a bordo do navio RVIB Nathaniel B. Palmer dos Estados Unidos da América. Os resultados revelam uma plataforma continental situada entre os 300 e 990 m de profundidade. A zona proximal e intermédia é caracterizada por um aspeto irregular, onde é possível constatar a presença de meltwater channels com mais de 230 m de profundidade e formas semelhantes a drumlins, identificadas entre os 800 e 900 m de profundidade. Sulcos deixados pela deriva de icebergs são esporadicamente observados na zona distal da plataforma continental entre os 380-410 m de profundidade. No limite da plataforma continental encontra-se presente um sistema de gullies que se desenvolvem ao longo do talude. Além disso a análise quantitativa dos aspetos morfológicos associados às formas de drumlin e gullies permitiu uma descrição morfológica mais detalhada, e encontrar padrões que permitiram obter mais informações sobre os fatores de controlo envolvidos durante a sua formação. A distribuição observada das diferentes morfologias identificadas é coerente com estudos anteriormente realizados e constituem uma forte evidência de que o manto de gelo teve uma extensão até ao limite da plataforma continental e que a sua dinâmica foi mais ativa do que se tem constatado.
Swath bathymetric and sub-bottom CHIRP data collected on the East Antarctica continental shelf and seaward allowed detailed mapping of the geomorphic features formed during past times of extended grounded ice from an expanded East Antarctic Ice Sheet (EAIS). Under the umbrella of the American National Science Project 'Vulnerability of East Antarctic ice shelves' and the Portuguese PROPOLAR project EAST-MARGINS, the seafloor morphology was interpreted and submitted to quantitative analyses, through morphometry and statistical analysis, to better understand the EAIS dynamic in the past. The study area included a segment of the continental shelf, slope and rise between the Frost and Dibble Glaciers (128ºE and 134ºE). The data were collected during the cruise NBP1503 in April 2015, on board the U.S. RVIB Nathaniel B. Palmer. The results revealed a continental shelf with depths varying between 300 m and 990 m. The inner and mid shelf area is characterised by a crudely streamlined landscape where subglacial meltwater channels up to 230 m deep and drumlin-like bedforms at 800-900 m water depth have been identified. Sporadic iceberg scours occur in the outer continental shelf between 380-410 m of water depth. The shelf break is defined by a gully system which extends along the continental slope, followed by sediment mounds observed on the continental rise. Moreover, quantitative analyses on drumlin-like bedforms and gullies allowed a further morphological description to better delineate patterns, and provided more details related to the controlling factors involved during their formation. The distribution of identified glacial features is coherent with other previous studies and constitutes a strong evidence that the grounded ice reached the continental shelf break in the past and was more dynamic than previously thought.
Herrera, Osandón Mariajosé. "Geomorfologia de la cuenca del glaciar chico, campos de hielo sur, Chile Austral." Tesis, Universidad de Chile, 2005. http://repositorio.uchile.cl/handle/2250/100631.
Full textAraos, Espinoza José Miguel. "Glacial geomorphology and paleoglacial behavior estimation in Sierra Baguales (50° S): Paleoclimatic factors that controlled glacier variations within the pleistocene - holocene regional context." Tesis, Universidadn de Chile, 2016. http://repositorio.uchile.cl/handle/2250/142482.
Full textThe Sierra Baguales Mountain Range (SBMR) forms the eastern foothills of the Patagonian Andes located between 50º and 51º S, topographically isolated from the Southern Patagonian Icefield (SPIF) and under the influence of the Westerly Winds. Its landscape shows glacial deposits and morphologies, potentially useful for the reconstruction of the Pleistocene Holocene glaciations, which occurred in the vicinity of the Patagonian Ice Cap, and possibly showed individual responses to environmental change after the Last Glacial Maximum (LGM). Using simple and multivariate statistical methods, the morphometry of 143 glacial cirques, distributed between the current eastern limit of the SPIF and the easternmost SBMR, approximately 200 km from the Pacific coast, was analyzed. For the latter sector, using photo-interpretation, Geographic Information Systems (GIS) and field work, the first glacial and periglacial geomorphological map of the area was constructed. The relationship between the Geological Strength Index (GSI), rainfall gradient, and cirque areas, which were occupied and eroded by former alpine glaciers, was also established. To this end, theoretical profiles of the ice topography, based on a perfect plasticity model, were developed. Ages of local environmental changes were estimated using 14C dating. Equilibrium Line Altitude (ELA) variations were interpreted based on geomorphological evidence and the accumulation area ratio (AAR).The lowering of the ELA was converted to the change in temperature by multiplying it with an average atmospheric lapse rate. For the SBMR, it is possible to recognize two glaciation levels which rise towards the interior of continent. Their spatial distribution and elevation were controlled by tectonic factors (Andean uplift), the rainfall gradient and the climate contrast from east (temperate maritime) to west (dry cold), present in southern Patagonia since the LGM. The lower group of glacial cirques is distributed in the lower areas of the main valleys. These have no current evidence of snow or glacial processes and have been subject to fluvial erosion and gravitational processes. These cirques can be associated with outlet glacier advance of the Patagonian Ice Cap during the Holocene, and were probably partially or completely covered with ice during the LGM or prior glaciations. On the other hand, the upper group of glacial cirques is located east of the SPIF and mainly in the eastern section of the SBMR. Their size is reduced progressively to the east due to the increased resistance of the rocks on which they developed and the regional rainfall gradient. These cirques show evidence of lateral and frontal moraines of alpine glaciers, some of which are currently active. This cirque group corresponds to those glaciers that remained after the middle Holocene, favored by a gentle slope and aspect, in addition to low temperatures prevailing in the highest marginal sections of the SPIF and particularly the SBMR. Radiocarbon ages can be considered as evidence of environmental change linked to the temperature decrease and rainfall increment resulting from the latitudinal shift and the increase in strength of the Westerly Winds during the middle Holocene. For the SBMR, where the local atmospheric temperature from the Tardiglacial was approximately 3.8±0.8°C colder than today, temperatures possibly remained lower in relation to the regional context, mainly due to the cold and dry climate prevailing towards the interior of the continent, and the elevation of the basins where the former alpine glaciers were located, which eventually advanced and coalesced to form a small Icefield. Such advances could be related to variations in the Frias Lobe, at the same latitude of the SBMR but closer to the SPIF eastern margin.
Villacorta, Sandra, and José Ubeda. "The Geomorphic Map of Metropolitan Lima and its Hidrographic Basins, a Tool to the Sustainable Land Management." Pontificia Universidad Católica del Perú. Centro de Investigación en Geografía Aplicada, 2013. http://repositorio.pucp.edu.pe/index/handle/123456789/119851.
Full textEn este trabajo se presenta una iniciativa conjunta del Instituto Geológico Minero y Metalúrgico (Ingemmet) y el Grupo de Investigación en Geografía Física de Alta Montaña de la Univeridad Complutense de Madrid (GFAM-UCM) para promover en el Perú las investigaciones sobre geomorfología y cambio climático. El plan consiste en elaborar mapas geomorfológicos de la región de Lima Metropolitana y las cabeceras de sus cuencas hidrográficas (Chillón, Luríny Rímac) generando instrumentos de análisis para: 1) Decodificar el registro de los cambios climáticos en las formas del relieve. 2) Delimitar las reservas hídricas almacenadas en forma de masas de hielo (criosfera), conocer sus tendencias y elaborar pronósticos de futuro. 3) Identificar las relaciones entre las geoformas del relieve y los peligros geológicos que afectan a la población y sus actividades económicas. 4) Diseñar una metodología que pueda extrapolarse a otras regiones peruanas. Con el fin de lograr esos objetivos, en primer lugar se van a elaborar mapas geomorfológicos integrados en sistemas de información geográfica (SIG): se diferenciarán las unidades morfoclimáticas, se identificarán los procesos que las generaron y se propondrán sus cronologías relativas. A continuación, se establecerán las cronologías absolutas de unidades clave, que permitirán confirmar o corregir la anterior secuencia de edades. De este modo se desea contribuir a desarrollar modelos de la evolución del clima, colaborar con la evaluación de los peligros geológicos y conocer el estado de la criosfera, incluyendo tendencias pasadas y previsiones futuras.
Durbahn, Quinteros Marcela. "Reconocimiento y caracterización de la geomorfología glacial en Magallanes: valoración para la generación de nuevas alternativas de turismo de intereses especiales (Geomorfositios)." Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/143687.
Full textEste trabajo surge de la necesidad de mostrar lo interesante del pasado glacial de la región a la comunidad regional más ponerlo en valor. La información se encuentra documentada en la literatura científica, a través de la identificación de los elementos geomorfológicos y/o rasgos derivados del Último Máximo Glacial que modeló el paisaje de Magallanes. Esto permitirá incorporar valor agregado al componente escénico para su valoración por parte de la comunidad regional. La identificación y ubicación de los elementos postglaciales se realizó durante la primera etapa del proyecto “la Ruta de la Edad del Hielo”, financiado con recursos del Fondo para la Innovación y Competitividad Regional (FIC-R) año 2010-2011 ejecutado por la Centro de Estudios del Cuaternario Fuego-Patagonia y Antártica (CEQUA) en colaboración por el Instituto Chileno Antártico (INACH). Las actividades se focalizaron en la recopilación y revisión de la literatura científica, su verificación en terreno, y la digitalización de los elementos considerados. Como referencia, se rescató lo realizado por la Universidad de Maine, USA, quienes caracterizan el escenario postglacial en un mapa denominado la Ruta de la Edad del Hielo (Maine´s Ice Age Trail). Con los resultados alcanzados, se pudo reconstruir el pasado glacial de la región, lo que permitió continuar con la segunda etapa del proyecto, la que se ejecutó entre los años 2012 y 2014, cuyo objetivo respondió a la inquietud de poner en valor los atributos paisajísticos postglaciales, a través de la generación de rutas tentativas que pudiesen constituir una alternativa turística. Éstas deberían responder al menos tres requerimientos: contenido científico (que el lugar fuera de interés científico y que se encontrara documentado); accesibilidad (el sector fuera de fácil acceso y ubicación para la observación); y cercanía, (contemplara circuitos cortos cuyo tiempo de realización fuera de un día como máximo). En esta etapa se consideró la metodología desarrollada por Pereira et al. (2007), para la evaluación de geomorfositios, la cual permitió generar un sistema de ranking de los sitios que tuvieran un atractivo tanto científico como paisajístico.
Pino, Rivas Catalina Antonieta. "Estudio geomorfológico glacial y periglacial asociado a la evolución de glaciares rocosos en la alta cuenca del río Cochiguás, Región de Coquimbo." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/170034.
Full textEn los Andes Semiáridos, específicamente en la alta cuenca del río Cochiguás en la Región de Coquimbo, el ambiente glacial y periglacial está compuesto por un complejo sistema geomorfológico, en el que resaltan geoformas como los glaciares rocosos. Sin embargo, este es un tema de investigación reciente en Chile, donde no se sabe con certeza la dinámica, estructura interna y aporte hídrico a la cuenca de estos cuerpos. Adicionalmente, y bajo tendencias climáticas que apuntan a un calentamiento atmosférico paulatino en la zona y a una disminución evidente en las precipitaciones, es necesario estudiar los efectos que esto tendría en este tipo de glaciares. En esta investigación, se estudió geomorfológicamente la alta cuenca del río Cochiguás, específicamente tres quebradas: Caballos, Del Toro Muerto, y Vallecillo, con el fin de caracterizar esta zona, la cual alberga glaciares rocosos de tipo glacial y criogénico. De esta manera, se han evidenciado rasgos glaciales y periglaciales, que sugieren un relieve con una marcada impronta glacial, y que posteriormente dio paso a condiciones más áridas, donde han predominado los procesos periglaciales y criogénicos, evidenciados por los abundantes depósitos de remoción en masa y nieve/hielo con abundancia de detritos. Se ha realizado, como producto final, un mapa geomorfológico actualizado de la zona de estudio, además de un inventario de glaciares rocosos que complementa los inventarios nacionales e internacionales actualmente existentes. Adicionalmente, mediante técnicas de GNSS diferencial para el año 2018 y mediante el procesamiento fotogramétrico de estéreo fotografías para los años 1955 y 1999, se crearon Modelos Digitales de Elevación (MDE) que permitieron estudiar los cambios de volumen en un periodo de 63 años de dos glaciares rocosos ubicados en la quebrada Caballos, tributaria del río Cochiguás. Se estudió también el papel que juegan los parámetros geográficos (exposición de pendientes a la radiación solar y la estabilidad de ellas asociadas a su pendiente), geológicos (influencia de las paredes rocosas en la producción de detritos, la litología de la cubierta detrítica y el tamaño de los clastos) y climáticos (potencial influencia que han tenido las variaciones históricas en el comportamiento y variaciones de estos cuerpos). Este estudio muestra que ambos glaciares rocosos han variado negativamente su altura en un promedio de 10 cm por año en el periodo 1955-1999, lo que en términos de volumen representa aproximadamente 1, 7 millones de m3 de equivalente en agua. Estos datos concuerdan con estudios en Chile Central, donde se ha evidenciado un adelgazamiento de 16 cm aproximadamente por año en glaciares rocosos.
Servicio Nacional de Geología y Minería (SERNAGEOMIN)
Martins, Elisabete Clara Moreira. "Geologia, morfologia e vegetação na Serra da Estrela : aplicações didácticas." Master's thesis, Universidade de Aveiro, 2006. http://hdl.handle.net/10773/2693.
Full textA Serra da Estrela, com o ponto mais elevado de Portugal Continental, constitui um local único no país para o estudo in situ de aspectos geomorfológicos de origem glaciária em bom estado de conservação, contrastando claramente com os traços da morfologia granítica das áreas não afectadas pelos glaciares. Do ponto de vista litológico, esta região é formada por rochas graníticas hercínicas que intruem os metassedimentos do Complexo Xisto-Grauváquico Ante-Ordovícico. A topografia geral do maciço, nomeadamente as vertentes escarpadas que limitam plataformas escalonadas a vários níveis, dominando as depressões aplanadas da plataforma do Mondego e da Cova da Beira, denuncia a sua origem tectónica. A diversidade da vegetação que aqui se encontra reveste-se, igualmente, de particular interesse, não só pelos endemismos hermínicos e ibéricos, mas também pelo facto de constituir um dos locais do país onde é possível encontrar espécies adaptadas à neve e ao gelo. A altitude do maciço da Estrela, aliada às condições climatológicas, edáficas e de exposição solar, condiciona a distribuição da vegetação, sendo possível a delimitação, mais ou menos nítida, de uma zonação da vegetação. O facto de grande parte do maciço se encontrar dentro dos limites do Parque Natural, a existência da Reserva Biogenética que abrange as áreas mais elevadas, e a recente inclusão da área do Parque Natural na Rede Natura 2000 atribuem um valor especial à Serra da Estrela no âmbito da educação ambiental. A boa localização geográfica e a boa acessibilidade são outros factores que tornam a Serra da Estrela uma área de grande interesse didáctico para a realização de actividades de campo. Este trabalho pretende apresentar-se como uma ferramenta de orientação dos docentes que leccionam a disciplina de Ciências Naturais do terceiro ciclo do ensino básico, mormente ao nível do 8ºano, e que queiram implementar Trabalho de Campo, visando integrar conteúdos da “Dinâmica externa da Terra” e dos “Ecossistemas”, numa perspectiva de sensibilização dos alunos para o património natural/ambiental. Assim, depois da apresentação geral desta investigação, os seus objectivos e metodologia adoptada, segue-se o capítulo II, dedicado à caracterização da região da Serra da Estrela no que respeita à geologia, morfologia, pedologia, climatologia, vegetação, sua distribuição e influência da ocupação humana na sua evolução, destacando os diferentes investigadores que contribuíram para esse conhecimento. No capítulo III, enfatiza-se a importância do Trabalho de Campo (TC), organizado numa perspectiva construtivista, no ensino das Ciências Naturais. Segue-se a caracterização do modelo de organização do TC, de Nir Orion, que serviu de orientação para a elaboração de uma proposta de planificação de actividades de campo, que inclui dois roteiros para saídas de campo, articulados com uma visita de estudo ao Ecomuseu do Zêzere. Elaboraram-se materiais didácticos de apoio para o professor, com a informação necessária à implementação de actividades antes, durante e depois da saída de campo, e guiões de trabalho para os alunos. ABSTRACT: The Serra da Estrela, where it is located the highest point in continental Portugal, is a unique place for the morphological study of glaciated and non glaciated terrains of granite origin. From a lithological point of view, this region is constituted by hercynian granitic rocks, intruded in pre-ordovician metassediments of the Complexo Xisto-Grauváquico. The general topography of the massive, namely the platforms located at different levels and limited by steep slopes, which dominate the Mondego and Cova da Beira depressions, shows its tectonic origin. The vegetation found here is also of particular interest, not only because of its diversity, but also because of the existence of endemic species in the region and because it is one of the few areas in Portugal where we can find species adapted to snow and ice. The altitude of Serra da Estrela massive, allied with climatic characteristics, type of soils and insulation conditions, has a great influence in the distribution of vegetation and in the development of different vegetation zones. The fact that the major part of the massive is included in the Parque Natural da Serra da Estrela, the existence of a biogenetic reservation area in the highest part of the massive and the recent inclusion of the Parque Natural in the Rede Natura 2000, makes this region a special place for the purposes of environmental education. The location in the centre of the country and the good conditions of accessibility are also factors that must be taken in account to understand the interest of this region as an area for the development of field work with students. This work is intended to constitute an orientation tool for the teachers of Natural Sciences that are interested in the implementation of field work in the 3rd level of Basic School, in particular in the 8th grade, with the objective of integrating the contents of Earth External Dynamics and Ecology. After the general presentation of the work in the 1st Chapter, the 2nd Chapter deal with the characterisation of the geology, morphology, types of soil, clime and vegetation, the human influence in the distribution and evolution of vegetation. The 3rd Chapter is dedicated to the importance of field work in Natural Sciences, organised in a constructivist perspective, and to the characterisation of the Nir Orion model for the planning of field work. This model was the base for the elaboration of two field trips, and a visit to the Zêzere Ecomuseu, which are supported by didactic materials, in particular a Guide Book for the students and another for the teachers, with the necessary information to implement all the proposed activities before, during and after field work.
Books on the topic "Geomorfologia glacial"
N, Makkaveev A., and Aseev A. A, eds. Terminologii͡a︡ gli͡a︡t͡s︡ialʹnoĭ geomorfologii. Moskva: Iz-vo Nauka, 1986.
Find full textIzquierdo, Luis M. Ortigosa. Geomorfología glaciar de la Sierra Cebollera (sistema ibérico). Logroño: Instituto de Estudios Riojanos, 1986.
Find full textOrtiz, Antonio Gómez. Contribució geomorfològica a l'estudi dels espais supraforestals pirinencs: Gènesi, organització, i dinàmica dels modelats glacials i periglacials de la Cerdanya i l'Alt Urgell. [Barcelona]: Generalitat de Catalunya, Departament de Política Territorial i Obres Públiques, Institut Cartogràfic de Cataluyna, 1987.
Find full textTrenhaile, Alan S. Geomorphology: A Canadian perspective. Toronto: Oxford University Press, 1998.
Find full textTrenhaile, Alan S. Geomorphology: A Canadian perspective. Toronto: Oxford University Press, 1997.
Find full textGeomorphology: A Canadian perspective. 3rd ed. Don Mills, ON: Oxford University Press, 2007.
Find full textGeomorphology: A Canadian perspective. 2nd ed. Don Mills, Ont: Oxford University Press, 2004.
Find full textEl Ajusco: Geomorfologia volcanica y acontecimientos glaciales durante el Pleistoceno superior y comparacion con las series glaciales mexicanas y las de las Montanas Rocallosas (Serie Arqueologia). Instituto Nacional de Antropologia e Historia, 1990.
Find full textE, White Sidney, ed. El Ajusco: Geomorfología volcánica y acontecimientos glaciales durante el Pleistoceno superior y comparación con las series glaciales mexicanas y las de las Montañas Rocallosas. México, D.F: Instituto Nacional de Antropología e Historia, 1990.
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