Both geological structures and valley axes were determined by the azimuth and the dip which corresponds with the angle of the slope in the selected catchment in the central Czech Republic. The determination of the dip of valley axes has formed
a base for the quantitative classification of valley axes analogous to geological structures. The following 5 types of valley axes were distinguished : sub-horizontal, gently inclined, moderately inclined, steeply inclined and sub-vertical
. The orientations of both the valley axes and the geological structures were evaluated by the construction of outline diagrams in the programme Spheristat. The directions of valley axes were compared with geological structures by statistical relationships
. The directions of sub-horizontal valley axes correspond with the azimuth of foliations in contrast to the azimuth of joints in the model area. The evaluation of geological structures by the vector analysis of valley axes is practicable in all kinds of landscape.
Establishing soil and surficial geologic habitat criteria for presumed gypsophiles - The example of Eriogonum corymbosum var. nilesii, Mojave Desert, U.S.A.
The AA. use soil profile data and high resolution (1:3000 scale) surficial geologic maps to identify likely edaphic controls of a rare shrub endemic to the Mojave Desert, E. corymbosum var. nilesii (LVB) habitat, potential habitat, and non-habitat
whether carbonate-rich habitats represent ideal conditions or refugia. This study underscores the important merits of surficial geologic mapping and soil morphological description for ecological research, conservation, restoration, and land management
Holocene evolution of meander bends in lowland river valley formed in complex geological conditions (the Obra River, Poland)
Ground-penetrating radar surveys, coring and the analyses of satellite and aerial images have been carried out to study differences in the evolution of meander bends formed in various geological conditions, in the lower course of the Obra River
2014
[b1] Dept. of Geographic and Geologic Sciences, Adam Mickiewicz Univ., Poznán, Pologne
Geological structure ; Geomorphology ; Hungary ; Land development ; Landform evolution ; Quaternary
The paper contributes to the detailed reconstruction of the geological, geomorphological and land development conditions of the Hajdúhát and its southern neighbour, the South Hajdúság, based on recent shallow boreholes and a detailed field survey
) dominated by rock topples. According to the selected methodological approaches, data from detailed geological, geomorphological and geomechanical surveys, it is clear that these topples are mainly related to the geological structures of the region
Geological structure ; Hydrological regime ; Lake ; Poland ; Precipitation ; Underground water ; Water body ; Water shortage ; Water supply ; Watershed ; genetic types of supply ; lakes ; underground inflow ; water mixing
. The territorial conditions (e.g. geologic structure of catchment areas or thickness of unsaturated and saturated zones) were the most important factors that determined seasonal fluctuations of the supply to the lakes.
in the largest 25% of the size distribution. Joint likelihoods that combine the results of both species estimated moraine ages of AD 1938, 1917, and 1816. Ages predicted by Rhizocarpon alone were older than those of P. pubescens. Predicted ages are geologically
2014
[b3] Dept. of Geological Sciences and INSTAAR, Univ. of Colorado, Boulder, Etats-Unis
that the study of zoogeography allowed him to adopt an innovative and complex approach to Brazilian fauna. His analyses placed ephemeral human history and political frontiers within the larger scale of geological time and the history of life on Earth. Despite his
a surge potential and this represents a considerable challenge for paleoclimatic studies. Glaciological and geological models therefore need to be coupled. The issue is discussed with Fridtjovbreen glacier as an example.