It has been found that there existed quite a large quantity of dune rocks in the red sandstone of the Zhidan Group of Ordos Cretaceous strata. Their sedimentary structure, grain size and micro-shape of sand grains sho...It has been found that there existed quite a large quantity of dune rocks in the red sandstone of the Zhidan Group of Ordos Cretaceous strata. Their sedimentary structure, grain size and micro-shape of sand grains show an obvious aeolian features. Both the temporal and spatial distribution and sedimentary characteristics of these dune rocks suggest that probably展开更多
The study of trajectory parameters of saltating sand grains is of great importance to forming the kinematic theory of wind-sand current. By establishing the simplified theoretical pattern and probing into the relation...The study of trajectory parameters of saltating sand grains is of great importance to forming the kinematic theory of wind-sand current. By establishing the simplified theoretical pattern and probing into the relationship between lift-off angle (α) and landing angle (β), relationship between the ratio of saltation length ( L) to maximum height (H) and lift-off angle as展开更多
文摘It has been found that there existed quite a large quantity of dune rocks in the red sandstone of the Zhidan Group of Ordos Cretaceous strata. Their sedimentary structure, grain size and micro-shape of sand grains show an obvious aeolian features. Both the temporal and spatial distribution and sedimentary characteristics of these dune rocks suggest that probably
文摘The study of trajectory parameters of saltating sand grains is of great importance to forming the kinematic theory of wind-sand current. By establishing the simplified theoretical pattern and probing into the relationship between lift-off angle (α) and landing angle (β), relationship between the ratio of saltation length ( L) to maximum height (H) and lift-off angle as
