Search results for "mountain"
showing 10 items of 168 documents
Tectonothermal Evolution of the Broadly Rifted Zone, Ethiopian Rift
2019
The Broadly Rifted Zone (BRZ) of southern Ethiopia is a long-lived and structurally complex segment of the East African Rift System. However, due to poor surface exposure of early synrift strata and a dearth of subsurface data, the evolution of the BRZ remains poorly understood. We present new apatite (U-Th-Sm)/He and augmented apatite fission track low-temperature thermochronology data from the Beto and Galana basin boundary fault systems to constrain the tectonothermal evolution of the western and eastern BRZ, respectively. Time-temperature reconstructions suggest that East African Rift System-related extension began concurrently across the BRZ in the early Miocene (20–17 Ma), at least 6 …
SIGNIFICANCE FOR INTERNATIONAL CORRELATION OF THE PERAPERTÚ FORMATION IN NORTHERN PALENCIA, CANTABRIAN MOUNTAINS. TECTONIC/STRATIGRAPHIC CONTEXT AND …
2021
Small ammonoid assemblages are recorded from the Perapertú Formation in northern Palencia. This is a mudstone unit with local platform limestones characterised by carbonate debris flows on the limestone margins. This unit, of Late Bashkirian to Early Moscovian age, participates in a series of southwards verging thrust slicesNorth of a major fault zone which originated as the head (leading edge) of a large thrust sheet with an internal deformation consisting of thrust slices and at least one nappe structure. Opposed vergencies at the head of this major thrust sheet (Carrionas Thrust Front) and the Ruesga Fault which locally modifies its trace, mark the position where the northern branch of t…
Sedimentary basins evolution and olistoliths formation: The case of Carpathian and Sicilian regions
2012
Abstract Comparative research carried out within two different basins, one in the Carpathians of Poland (Late Jurassic to Early Miocene) and another in the Apenninic-Maghrebian mountain chain of Sicily (Triassic-Miocene), indicate significant similarity not only in their evolution but also in the sedimentary features of horizons with olistoliths. The olistolith-bearing units are genetically related to stages of tectonic evolution and are independent of the size of the basins and of duration of these stages. However, the observed differences in composition and size of olistoliths suggested, among the others relationship with the size of source areas and thickness of their sedimentary cover.
Soil Erosion on Mountain Trails in Eastern Iberian Peninsula
2020
A review on trial erosion shows that soil erosion rates are one to three orders of magnitude higher than the ones recommended as sustainable. This is threatening the sustainable managements of mountain terrains, mainly in the popular hiking paths. The warm temperatures characterize Eastern Spain in winter, which results in visitors from northern Europe to walk in the coastal land mountainous terrain. This increases the pressure to the currently highly visited most popular paths. We selected representative transects of the trails of Serra de Bérnia, Puigcampana, Penyagolosa, Montcabré, Serra del Sit, Aitana, Les Tres Creus, Caroig, Cupurutxo and Circ de la Safor. All the selected study sites…
Sudeckie linie życia. O "Grandhotelu" Jaroslava Rudiša
2012
Powieść Grandhotel to utwór czeskiego pisarza młodego pokolenia Jaroslava Rudiša. Portrety i losy bohaterów powieściowych zostały wpisane przez Rudiša w dwudziestowieczną historię Liberca i sudeckich okolic. Stworzenie postaci Fleischmana – głównego bohatera powieści, o skomplikowanej osobowości i tożsamości – posłużyło pisarzowi w próbie zdiagnozowania zbiorowego ducha współczesnych Czechów. Z powieściowego świata Grandhotelu wyłaniają się dwa zasadnicze wymiary: egzystencjalny z całą galerią indywidualności poszukujących swojego miejsca na ziemi, z ich pogmatwanymi „liniami życia” i osobistymi dramatami; oraz zbiorowy, historyczno-społeczno-kulturowy, wypełniony skomplikowanymi dwudziesto…
Hydrophytic vegetation aspects in the Nebrodi mountains (Sicily)
2009
The vegetation of damp areas in the Nebrodi Natural Park was already surveyed in some studies (Brullo et al. 1994). In particular, the various hygro and hydrophytic aspects were referred to associations belonging to the Phragmitetea and the Potamogetonetea classes respectively. Small lacustrine habitats in Sicily have disappeared almost everywhere and are conserved still today only in the Nebrodi Mountains. They host widely distributed hydrophytes. Some of these plants are rather localized in Sicily, e.g. Potamogeton polygonifolius Pourr. and Utricularia australis R. Br. The latter occurs also in the Madonie Mountains. Recent analyses revealed some hollows characterized by an accentuated re…
Zmiany struktury przestrzennej krajobrazu na obszarze Parku Krajoznawczego "Góry Owawskie" w okresie od XIX do XXI w
2021
Krajobrazy gór i przedgórza podlegają wielu przemianom warunkowanym przez czynniki antropogeniczne oraz przyrodnicze. W Parku Krajobrazowym „Góry Opawskie” i jego otulinie w okresie od XIX do XXI w. doszło do szeregu przekształceń krajobrazowych, związanych z rozwojem sieci osadniczej, zmianami zasięgu kompleksów leśnych oraz zmianami w strukturze upraw. Kluczowe było także objęcie ochroną prawną tego obszaru i utworzenie parku w 1988 r. W artykule dokonano analizy zmian w strukturze krajobrazu z użyciem metryk krajobrazowych, które wykorzystano odrębnie do oceny zmian krajobrazu jako całości oraz poszczególnych klas. Badania przeprowadzono na podstawie obrazów odtworzonych z archiwalnych ź…
Techniques for the modelling of the process systems in slow and fast-moving landslides
2014
This chapter reviews some of the current strategies for landslide modelling. Main physical processes in landslides are first recalled. Numerical tools are then introduced for the analysis of the behaviour of slow- and fast-moving landslides. Representative case studies are introduced through the chapter to highlight how different modelling strategies can be used depending on the physical processes that the modeller wants to take into account.
Do nutritional supplements have a role in age macular degeneration prevention?
2013
Purpose. To review the proposed pathogenic mechanisms of age macular degeneration (AMD), as well as the role of antioxidants (AOX) and omega-3 fatty acids (ω-3) supplements in AMD prevention.Materials and Methods. Current knowledge on the cellular/molecular mechanisms of AMD and the epidemiologic/experimental studies on the effects of AOX andω-3 were addressed all together with the scientific evidence and the personal opinion of professionals involved in the Retina Group of the OFTARED (Spain).Results. High dietary intakes ofω-3 and macular pigments lutein/zeaxanthin are associated with lower risk of prevalence and incidence in AMD. The Age-Related Eye Disease study (AREDS) showed a benefic…
Predictors of visually induced motion sickness in women
2019
Abstract Background Visually induced motion sickness (VIMS) is commonly experienced when visual motion information is in conflict with motion information provided by the vestibular system and/or tactile and kinesthetic senses. According to some studies, women experience higher levels of VIMS than men, whereas other studies do not find this to be the case. Hypothesis This study investigated whether gender differences can be attributed to changes in VIMS-susceptibility due to the menstrual cycle and perceived menstrual pain. We hypothesized that higher perceived menstrual pain correlates positively with VIMS susceptibility. Methods We measured the influence of estimated concentrations of four…