Grand Canyon Sunset is a photograph by Bob and Nadine Johnston which was uploaded on April 9th, 2012.
Grand Canyon Sunset
Sunset at Desert View over the Grand Canyon. The last rays of sun, make the Colorado River sparkle as the sky begins turning pink or salmon. You can... more
Original - Sold
Price
Not Specified
Dimensions
24.000 x 16.000 x 1.500 inches
This piece has been already sold. Please feel free to contact the artist directly regarding this or other pieces.
Click here to contact the artist.
Title
Grand Canyon Sunset
Artist
Bob and Nadine Johnston
Medium
Photograph - Fine Art Available On Canvas Or Print
Description
Sunset at Desert View over the Grand Canyon. The last rays of sun, make the Colorado River sparkle as the sky begins turning pink or salmon. You can see a sunrise or sunset from many areas of the Canyon and each one will be different to those in various areas of the desert. Intensities of colors in the sunsets vary, even colors will vary rapidly as the sun sets over the horizon. This was taken at or before the last light at Dusk. Just before the sun came over the Horizon in The Grand Canyon, from one of the viewpoints near Angel Trail.
-----------------------------------------------------------------------------------------
The geology of the Grand Canyon area exposes one of the most complete and studied sequences of rock on Earth. The nearly 40 major sedimentary rock layers exposed in the Grand Canyon and in the Grand Canyon National Park area range in age from about 200 million to nearly 2 billion years old. Most were deposited in warm, shallow seas and near ancient, long-gone sea shores in western North America. Both marine and terrestrial sediments are represented, including fossilized sand dunes from an extinct desert. There are at least 14 known unconformities in the geologic record found in the Grand Canyon area.
-----------------------------------------------------------------------------------------
Uplift of the region started about 75 million years ago during the Laramide orogeny; a mountain-building event that is largely responsible for creating the Rocky Mountains to the east. In total the Colorado Plateau was uplifted an estimated 2 miles. The adjacent Basin and Range province to the west started to form about 18 million years ago as the result of crustal stretching. A drainage system that flowed through what is today the eastern Grand Canyon emptied into the now lower Basin and Range province. Opening of the Gulf of California around 6 million years ago enabled a large river to cut its way northeast from the gulf. The new river captured the older drainage to form the ancestral Colorado River, which in turn started to form the Grand Canyon.
-----------------------------------------------------------------------------------------
Wetter climates brought upon by ice ages starting 2 million years ago greatly increased excavation of the Grand Canyon, which was nearly as deep as it is now by 1.2 million years ago. Volcanic activity deposited lava over the area 1.8 million to 500,000 years ago. At least 13 lava dams blocked the Colorado River, forming lakes that were up to 2,000 feet (610 m) deep. The end of the last ice age and subsequent human activity has greatly reduced the ability of the Colorado River to excavate the canyon. Dams in particular have upset patterns of sediment transport and deposition. Controlled floods from Glen Canyon Dam upstream have been conducted to see if they have a restorative effect. Earthquakes and mass wasting erosive events still affect the region.
Uploaded
April 9th, 2012
More from Bob and Nadine Johnston
Comments (8)
Ernst Dittmar
Bob and Nadine, this is a wonderful photo of the Gran Canyon. The long shadows are modelling the landscape in a great way.
Marilyn Wilson
I think I have a photo of the same tree, but from many many years ago. :)
Bob and Nadine Johnston replied:
You probably do Marilyn, this is along the rim behind the Desert Watch Tower near the benches for the Ranger Talks.
Debra and Dave Vanderlaan
A lovely big scene Bob and Nadine! Enjoy your day! We Voted! Celebrate life, Debra and Dave
Nadine and Bob Johnston
All the work on this image of the Grand Canyon, was completed in Lightroom. Filters were used to darken the sky, and add color. Brushes were used to add contrast, clarity, and color to the Mountains. The Fill control was used to lighten shadows so some detail shows in the foreground peaks. Brighten brushes were used to make the river stand out in more detail and add highlights. A brush was used to add some color to the rim in the foreground. Some areas were burned in while others were held back. In effect I find Lightroom is much like the Darkroom that we have been using for decades. So having darkroom experience helps you to use Lightroom more effectively... We can do what was done in the darkroom, much faster without wasting time and materiel to do a lot of test strips and prints/
Recently Viewed
