eolian betydelse and definition

Exempel på eolian

• Antarctic permafrost comprises fluvial and eolian ice cemented sediments that are coarse- to medium-grained sands and fine gravels.

• It is also used for dating the deposition of geological sediments after they have been transported by air (eolian sediments) or rivers (fluvial sediments).

• These sediments consist of eolian quartz, clay minerals, volcanic ash, subordinate residue of siliceous microfossils, and authigenic minerals such as zeolites, limonite and manganese oxides.

• Eolian processes are major factors in shaping desert landscapes.

• Also, eolian sedimentation can produce high rates of sediment accumulation.

• The smooth floor material is thought to be composed of fluvial material and/or eolian features covering an otherwise rough and jumbled terrain.

• Degraded and infilled impact craters record variations in volcanic, fluvial, and eolian activity over geologic time.

• Quartz is present with different morphologies, suggesting eolian (wind-based) and fluvial (river-based) transport.