Eolian deposits of eastern Minnesota

The Role of Eolian Processes in Forming Surface Featuresof the Martian Polar Layered Deposits

The major topographic features of the martian polar layered deposits include the conspicuous spiral troughs, subtle undulations, broad reentrants (chasma), steep, arcuate scarps, and dune fields. A prominent role for eolian processes in the formation of all of these features is proposed. Strong katabatic winds occur on the north polar cap, producing widespread frost streaks. These cold drainage...

Sulfate-Rich Eolian and Wet Interdune Deposits, Erebus Crater, Meridiani Planum, Mars

A long-standing goal of Mars environmental studies is to understand the role of water throughout its geologic history. The Mars Exploration Rover (MER) Opportunity has worked towards this goal by investigating bedrock exposures within craters in Meridiani Planum. Each crater provides an opportunity to test and refine models proposed for the formation of the Meridiani bedrock. The sulfate-rich b...

CHILD Eolian Deposition Module

Late Quaternary eolian dust in surficial deposits of a Colorado Plateau grassland: Controls on distribution and ecologic effects

In a semi-arid, upland setting on the Colorado Plateau that is underlain by nutrient-poor Paleozoic eolian sandstone, alternating episodes of dune activity and soil formation during the late Pleistocene and Holocene have produced dominantly sandy deposits that support grass and shrub communities. These deposits also contain eolian dust, especially in paleosols. Eolian dust in these deposits is ...

Multiple scale composition and spatial distribution patterns of the north-eastern Minnesota presettlement forest

1 Bearing tree data were used to characterize the composition and spatial structure of the southern boreal presettlement forest in north-eastern Minnesota, United States of America. Data collected during the General Land Office Survey (GLO) between 1853 and 1917, represents 35 324 samples (each with 1–4 trees) in a 3.2 million-hectare landscape. Nine tree species contributed at least 1% to the ...