There is nothing in the world like the Grand Canyon. Its formation, encompassing 277 miles, with a width of 18 miles and depth of about a mile, has captivated tourists, geologists, and just about anyone.
In 1919, the Grand Canyon was officially designated a national park, which in turn inspired a successful conservation movement.
|Image source: thecanyon.com|
However, despite its popularity, how the canyon was formed is anyone’s guess. Extensive geologic studies have been undertaken since 1858, and these have led to widely accepted theories on the geologic formation of the canyon.
A study of the approximately 40 major exposed sedimentary rock layers pegs the age range of the canyon between 200 million to around two billion years old. This would mean that the canyon and its rock layers were being shaped during the Proterozoic eon, well before complex life started to proliferate on Earth.
But the question that remains is which powerful impact was able to erode the rocks sufficiently to fashion the current formation of the canyon.
Scientific analyses point to water as the primary vector for the erosions. Millions of years of water flow, augmented by other forces, such as wind, volcanism, continental drift, and shift in seasons and climates, have made the Grand Canyon what it is today.
|Image source: outdoorproject.com|
Dwyer and Associates believes that national parks should be appreciated and preserved. For more interesting reads about these natural wonders, visit this website.