Tectonic, climatic and lithologic influences on landscape fractal dimension and hypsometry : implications for landscape evolution in the SanGabrielMountains, California
California ; Earth surface processes ; Fractal geometry ; Lithology ; Model ; Mountain ; Statistics ; Tectonics ; United States ; Weathering
The AA. attempt to correlate spatially varying rates of vertical tectonism along the southern frontal fault system of the SanGabrielMountains, with corresponding hypsometric integrals and landscape fractal dimensions. They also seek to constrain
geomorphic features are then used to suggest potential processes responsible for the correlations. Implications of these results for the topographic evolution of the SanGabrielMountains are then discussed.
California ; Dynamique de versant ; Etats-Unis ; Exposition de versant ; LiDAR ; Modèle numérique de terrain ; Pente de versant ; Réseau de drainage ; SanGabrielMountains ; Tectonique ; Versant ; Vitesse d'érosion
Here the AA. quantify hillslope response to tectonic across a threshold landscape in the SangabrielMountains, California, using an 1 m resolution, LiDAR-derived digital elevation model, high resolution panoramic photographs, and cosmogenic
Peaks of identity in Colorado's San Juan Mountains
Colorado ; Cultural identity ; Landscape ; Leisure ; Mountain ; Semiotics of space ; United States of America
As certain mountains such as the San Juan Mountains in southwestern Colorado are imbued with meaning, they become peaks of identity, symbolic landscapes associated with community and cultural ideals. For communities near the San Juans
Deglaciation and Postglacial timberline in the San Juan Mountains, Colorado
; Postglaciaire ; Quaternaire zones moyennes ; Rocky Mountains ; San Juan Mountains ; Sédiment lacustre
Rocky Mountains, no longer existed. From ca. 9600 to 3000 yr B. P. timberline in the San Juan Moutains was higher than present. Cooling apparently began ca. 3000 yr B. P. (CM).
Hypsometric forcing of stagnant ice margins: Pleistocene valley glaciers, San Juan Mountains, Colorado
Colorado ; Deglaciation ; Glacial valley ; Glacier margin ; Hypsometry ; Model ; Mountain ; Pleistocene ; Quaternary ; Topography ; United States of America
The A. uses the location of stagnant ice deposits in many San Juan valleys, Colorado, to test how valley hypsometry and topographic obstructions influence the type of margin present during valley glacier retreat.
Untersuchungen zur Geomorphologie des jungquartären Vergletscherungsgekietes im Oberlauf des Middle Boulder Creek (Colorado Front Range, Rocky Mountains). (Recherches sur la géomorphologie des régions englacées au quaternaire supérieur dans la
Chronostratigraphie ; Etats-Unis ; Glaciaire ; Glaciation ; Géochronologie ; Géographie de l'Amérique ; Middle Boulder Creek ; Moraine ; Quaternaire zones moyennes ; Rocky Mountains ; Stratigraphie
Les formes glaciaires de la région du cours supérieur du Middle Boulder Creek sont étudiées et datées suivant la chronologie du Quaternaire des Rocky Mountains de Richmond (1965). Des traces des trois plus anciennes glaciations pléistocènes n'ont
The geomorphology of subalpine snow avalanche runout zones: San Juan mountains, Colorado
Avalanche ; Colorado ; Couloir d'avalanche ; Dépôt de pente ; Etagement altitudinal ; Etats-Unis ; Géographie de l'Amérique ; Géomorphogenèse ; Montagne ; Neige ; Profil longitudinal ; Profil transversal ; San Juan mountains ; Versant ; Zone
Comparaison entre les terminaisons de pentes situées en zone subalpine dans les San Juan Mountains dont 22 couloirs d'avalanche et 15 autres versants (type de pente, matériel superficiel, profil longitudinal, dépôts, impact des avalanches et profil
An inventory and evaluation of natural areas in San Diego County
California ; Ecosystème ; Environnement ; Etats-Unis ; Géographie de l'Amérique ; Planification régionale ; Protection de la nature ; Région naturelle ; San Diego
Of the 64 public and private preserves inventoried in the desert, mountains and coast of this county, 32 of them were classified as well preserved , which included 16 % of the total county area in which now live 2 million people. - (DWG)
Climate change and glacier fluctuations in the southern mountains of the USSR during the last 1 000 years in Proceedings of the Conference on the transformation of mountain environments (TOME), part two.
Using lichen indicators and dendrochronology, glaciers in the Tien Shan, Altai and Caucasus Mountains show evidence of small fluctuations in the past 200 years, but synchrony among the three ranges is not clearly defined. - (DWG)
Salud y aislamiento. Análisis en el área de Chávez, San Juan (Argentina)
Santé et isolement. Analyse dans l'aire des sierras de Chávez, province de San Juan (Argentine)
Argentina ; Health ; Isolation ; Medical geography ; Mountain ; Regional pathology ; San Juan
Argentine ; Endogamie ; Géographie médicale ; Isolement ; Montagne ; Pathologie régionale ; San Juan ; Santé
Les conséquences de l'isolement sur la santé. Selon les AA., il n'y a pas eu une époque de plus grand isolement que l'actuelle, dans l'aire proche de la ville San Augustin de Valle Fértil, province de San Juan. On insiste notamment sur les problèmes
A Szovjetunio magashegységi okorendszerei és védelmük. (High-mountain ecosystems in the Soviet Union and their protection)
Ecosystème ; Géographie physique ; Haute montagne ; Kavkaz ; Montagne ; Pamir ; Protection de la nature ; Tjan'-San' ; URSS
Of high-mountain ecosystems the diversity of species, a remarkable ratio of endemics and the widespread distribution of relict species are characteristic. These ecosystems of the Soviet Union are highly susceptible to changes and it is difficult
Dolines of karstic and periglacial origin in the high mountain karst of Pale di San Martino plateau (Dolomites)
Alps (The) ; Doline ; Fracture ; Geomorphogenesis ; Italy ; Karst ; Morphometry ; Mountain ; Periglacial features
Etude de petites dolines cylindriques sur le plateau de Pale di San Martino (Dolomites). Présentation et discussion des données morphométriques et microclimatiques. Ces dolines sont le résultat des processus karstique et périglaciaire qui ont agi
Hydrology of montane forests in the sierra de San Javier, Tucuman, Argentina
Argentina ; Deforestation ; Forest ; Human impact ; Mountain ; Precipitation ; Rill wash ; Soil erosion ; Tucumán ; Water balance
Study of the hydrology of the subtropical moist montane forests (Yungas) in Argentina's Tucuman province. Study site on the eastern slope of the Sierra de San Javier also included land cleared for lemon and sugarcane plantations. Recording rain