Seasonal variation of crescentic dune morphology and morphometry, Strzelecki-SimpsonDesert, Australia
Australie ; Dune ; Dune en croissant ; Désert ; Eolien ; Géomorphodynamique ; Géomorphométrie ; South Australia ; Variation saisonnière
Aeolian features ; Australia ; Desert ; Dune ; Earth surface processes ; Geomorphometry ; Seasonal variation ; South Australia
This short communication discusses the changes in crescentic dune morphology that accompany seasonal variation in wind directions for the Strzelecki-SimpsonDesert, at Gurra Gurra waterhole.
Arid land;Arid environment ; Australia ; Dating ; Desert ; Dune ; Earth surface processes ; Eolian features ; Eolian transport ; Quaternary ; Queensland ; Thermoluminescence
The purpose of this paper is to examine the age of the dunes of the SimpsonDesert, and from this data to evaluate theories of their asymmetry, possible direction and rate of lateral migration and whether they undergo colouration with age.
Australie ; Désert ; Désert Sturt ; Désert de pierre ; Erosion ; Géomorphologie ; Hamada ; Miocène ; Oligocène ; South Australia
Australia ; Desert ; Erosion ; Geomorphology ; Miocene ; Oligocene ; South Australia
Le désert de pierre Sturt fait partie du désert de Simpson au centre de l'Australie. Les AA. livrent une étude géomorphologique de ce désert de pierre en insistant sur la lithologie et les processus d'érosion depuis l'oligocène.
Comparaison des études effectuées dans les différents systèmes dunaires de Simpson (Australie), du Kalahari, de la Namibie, du Sahara et de Rub al Khali en Arabie Saoudite: sédimentologie et essais de modélisation des actions éoliennes.
Sur la base de paramètres granulométriques des sédiments alluviaux superficiels et enfouis provenant de ruisseaux anastomosés du SimpsonDesert, cinq faciès sont distingués. Chacun d'eux est décrit sur la base de la distribution granulométrique et
Dust storms are a major contributor to soil erosion in inland Australia, and the SimpsonDesert-Channel Country region is one of the most active wind erosion regions. While information is available on wind erosion rates at the land-type level
The AA. focus their attention on the provenance of the inland desert and coastal dunes of the Altar Desert, based on the sedimentology, modal analysis and geochemistry of major and trace elements of the sands. The study uses grain size parameters
and petrographic and geochemical data as a contribution to the origines of dunes in desert and coastal dunes and it provides a new database for the Altar Desert in northwestern Mexico.
Cultural capacity ; Desert ; Environmental perception ; Exploration ; Historical geography ; Landscape ; Myth ; Settlement ; United States
The A. shows that the tradition of the desert of the Plains was invented and promoted by both Plains settlers and boomers in an attempt at self-justification and self-promotion. The promotion of the desert myth was so effective that, even today
The coastal Namib Desert is characterized by low habitat diversity, low primary productivity and adverse climatic conditions and therefore few primary consumers (Herbivores). - (AJC)