Canyon Iris

Canyon

A canyon, gorge or chasm, is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic time scales. Rivers have a natural tendency to cut through underlying surfaces, eventually wearing away rock layers as sediments are removed downstream. A river bed will gradually reach a baseline elevation, which is the same elevation as the body of water into which the river drains. The processes of weathering and erosion will form canyons when the river's headwaters and estuary are at significantly different elevations, particularly through regions where softer rock layers are intermingled with harder layers more resistant to weathering.

Iris (color)

Iris is an ambiguous color term, usually referring to shades ranging from blue-violet to violet.

canyon

Noun

1. A valley, especially a long, narrow, steep valley, cut in rock by a river.

Verb

1. Of water, liquid, or another substance, to flow in or into a canyon.

iris

Noun

1. A plant of the genus Iris, common in the northern hemisphere, and generally having attractive blooms (See Iris (plant) on Wikipedia.Wikipedia ).
2. The contractile membrane perforated by the pupil, which adjusts to control the amount of light reaching the retina, and which forms the colored portion of the eye (See Iris (anatomy) on Wikipedia.Wikipedia ).

Verb

1. To open or close in the manner of an iris.
2. To cause (something) to shine with the colours of the rainbow; to make iridescent.