Grand Canyon No 5 is a photograph by Phyllis Taylor which was uploaded on July 30th, 2016.
Grand Canyon No 5
A vertical view looking deep into part of the Grand Canyon along the rim.... more
Title
Grand Canyon No 5
Artist
Phyllis Taylor
Medium
Photograph - Photography
Description
A vertical view looking deep into part of the Grand Canyon along the rim.
The Grand Canyon is part of the Colorado River basin which has developed over the past 40 million years. A recent study places the origins of the canyon beginning about 17 million years ago. Previous estimates had placed the age of the canyon at 5–6 million years. The study, which was published in the journal Science in 2008, used uranium-lead dating to analyze calcite deposits found on the walls of nine caves throughout the canyon. There is a substantial amount of controversy because this research suggests such a substantial departure from prior widely supported scientific consensus. In December 2012, a study published in the journal Science claimed new tests had suggested the Grand Canyon could be as old as 70 million years. However, this study has been criticized by those who support the "young canyon" age of around six million years as "[an] attempt to push the interpretation of their new data to their limits without consideration of the whole range of other geologic data sets.
Uploaded
July 30th, 2016
