Fluting (geology)
Overview
Weathering
Weathering is the breaking down of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters...
and erosion
Erosion
Erosion is when materials are removed from the surface and changed into something else. It only works by hydraulic actions and transport of solids in the natural environment, and leads to the deposition of these materials elsewhere...
by which an exposed well-jointed coarse-grained rock such as granite
Granite
Granite is a common and widely occurring type of intrusive, felsic, igneous rock. Granite usually has a medium- to coarse-grained texture. Occasionally some individual crystals are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic...
or gneiss
Gneiss
Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks.-Etymology:...
, develops a corrugated surface of flutes; especially the formation of small-scale ridges and depressions by wave action.
Fluting in glacial geology:
- In glacial geology, flutes are narrow, elongated, straight, parallel ridges generally consisting of till, but sometimes composed of sand or silt/clay.
Quotations
I worry about my child and the Internet all the time, even though she's too young to have logged on yet. Here's what I worry about. I worry that 10 or 15 or 20 years from now she will come to me and say, 'Daddy, where were you when they took freedom of the press away from the Internet?'.
Luncheon speech given at technology conference, "New Media Technology: True Innovations or Electric Fork?" on February 13, 1996.