What Created The Grand Canyon?
The Grand Canyon, one of the most spectacular natural wonders on the earth, is situated in Arizona, U.S.A. It is a broad, beautifully created chasm, between the outer walls of which can be seen imposing peaks and buttes, rocks and ravines. Its vastness and colour are so imposing that he visitors are wonder struck. At some points it appears like “a magic city of rock, with temples, towers, and castles of dazzling colours.”
Discovery of Grand canyon was made by members of the Coronado expedition in 1540. Two Spanish priests rediscovered it in 1776. In 1919 the Grand Canyon National Park was formed around the most beautiful and interesting area of this canyon. Millions of visitors come to see this great wonder every year.
The Grand Canyon was created due to the flow of the Colorado river which has cut this huge gorge through thousands of years. The studies of the rocks of this canyon reveal great deal of geological history. All the processes of earth building are exemplified here. In some areas, the gorge of the Grand Canyon is more than a mile deep and is from four to eighteen miles wide. The river Colorado continues to flow deep below and to cut deeper into the already deep gorge.
Down at the bottom of the gorge, ancient rocks are exposed. In the sedimentary rocks, plant and animal fossils are found in abundance. These range from primitive algae in the lower strata to trees in the upper strata and from seashells and trilobites to the remains of dinosaurs, camels, horses. The fossils prove that great seas once rushed over these rocks.