A study of global sand seas

TL;DR: Granule ripples are found mainly in four regions of the Kumtagh Desert in China; they are characterized by an asymmetrical shape, with gentle lower slopes on both sides and abrupt crests as discussed by the authors.

TL;DR: In this article, an analysis of the temporal and spatial variability of climatic parameters including precipitation, potential evaporation and wind regimes that control the aeolian activity in the Taklimakan Sand Sea is undertaken.

TL;DR: In this paper, geological and morphological evidence are cited against the wind rift hypothesis in the Great Victoria and Simpson Deserts of Australia, and the distribution, shape and colour of dunes and the topographic relation of the dunes to substrates argue against an erosional origin.

TL;DR: In this paper, the authors hypothesize that the residence time of this air mass was much greater while dunes initially formed, possibly during a warmer and drier mid-Holocene period.

TL;DR: In this paper, a bar on the Brazos River near Calvert, Texas, has been analyzed in order to determine the geologic meaning of certain grain size parameters and to study the behavior of the size fractions with transport.

TL;DR: In this article, a detailed mapping of the sedimentary geology of Saudi Arabia by the Arabian-American Oil Co. (Aramco) began in 1933, and by 1959, exploration parties of one type or another had surveyed more than 1.3 million square kilometers (500,000 square miles).

TL;DR: In this article, the third moment (skewness) of a normal curve is used to distinguish between dune, beach, and river sand, and the difference between the two types of sand types can be numerically stated by computing the third moments of the distribution curve.