An exudate is a fluid emitted by an organism through pores or a wound, a process known as exuding. Exudate is derived from exude, to ooze, from the Latin exsÅ«dÄre, to (ooze) out like sweat (ex- out and sÅ«dÄre to sweat).
Glacial striations on bedrock. Rocks embedded in the bottom of a massive glacier scratched the rock underneath as the glacier moved along. Even though there is no ice present today, these scratched lines are evidence that glaciers were here in the geologic past.lacial striations are parallel to the handle of the hammer. Look at how the lines all go the same direction. Click to Enlarge. About : The scratch marks on the schoolyard are formed by the process shown on top -- a broom dragged along over wet tar.
These are large areas of glacial sediment deposited by meltwater streams furthest away from the glacial snout. They are formed from gravels, sands and clays, the clays being furthest away from the snout because the smaller particles are carried furthest.aterial that was already deposited by older streams and ice activity may be reworked and sorted by the streams forming the outwash plain, and carried beyond the original maximum extent of the ice sheet / glacier.