River - A large natural stream of water that flows over the surface of the Earth. Rivers flow through a channel that often winds downstream to flow into another river, lake or ocean. Rivers shape and surround us by cutting (eroding) valleys, gorges and gorges. Rivers carry fresh water to people, plants and animals around the world and provide people with transportation and hydropower. Standing at a vantage point in the river`s new gorge, notice the steep V-shaped canyon (canyon) and sandstone cliffs that characterize this area. The V-shaped gorge formed when the New River and its tributaries cut and eroded the rock layers over a very long period of time. You can see the continuous effects of erosion and weather in the large rocks and slides that have fallen from the sandstone rocks to the river below. Relief - The shape of the earth that surrounds us. A natural formation of rock and earth found on the surface of the earth, such as a plateau, a gorge, a mountain, a valley, a river and a wetland. A gorge is a narrow valley between hills or mountains with a stream of a river running through them. The gorges often have steep rock walls. Rivers cut through gorges as they move across the earth carrying stones and earth.
The continuous flow of water and abrasion caused by debris into the water eventually cut a deep trench through the landscape that exposes many layers of rock. Glaciers can also dig gorges in the earth as they move forward and backward. These glacial gorges fill with water and become rivers, which in turn remove more rock and soil to form even deeper gorges. One. Take a quick review by saying a definition and asking students to identify what type of relief it is, or call a relief type and let a student give you the definition. Worksheet 10 for reliefs. Hold the relief worksheet and explain to students that you will put an image of some kind of relief on the screen/board and that the class will identify the relief. Once the relief is identified, students will find the name of the relief in the first column of their worksheet. In the second column, students write a definition of the relief that the teacher places on the screen/blackboard.
In the third column, students draw and color an image of the relief. The gorges are formed by an existing river or an ancient river that has dried up. Most gorges are located between mountains, hills or plateaus almost close to the desert, at the place where a river cuts a canal in the country. Gorges are formed by water erosion, weathering, geological uplift or the movement and melting of glaciers. In general, they are more common in dry areas, since erosion is common in dry places. Another feature of canyons is that they are usually formed in areas made of limestone rock. Limestone is soluble, which promotes the formation of cave systems on rocks. Subsequently, the collapse of the rocks leads to the formation of gorges. The gorge crosses the Alleghany Plateau, which is part of the largest Appalachian Plateau.
It exhibits 3200 feet of very old rock composed mainly of limestone, sandstone, slate and coal. In the upper part of the gorge, the river cut layers of limestone rock, some of the oldest rocks found in the gorge. A gorge is a steep, narrow valley with a river or stream running along the ground. Gorges are formed by the interaction of several geological processes, including erosion, tectonic processes such as vertical uplift and cave collapse. Erosion by the resident body of water usually contributes mainly to the formation of gorges. A gorge can be narrow and deep, not much wider than the river that runs through it. This type of gorge is formed by the action of the river over several thousand years. A gorge can be much wider and formed by a moving glacier. Georges can have economic, restorative and geological benefits. For example, rivers that form and flow through a gorge can be used by hydroelectric power plants to generate electricity. China`s Three Gorges Dam has 26 turbines that produce 18,000 megawatts of electricity for Shanghai and other cities in the region. The gorges can also form waterways that can be traversed by cargo ships.
In addition, gorges and rivers can create opportunities for recreational activities such as wind sailing, white water rafting and hiking. Many geological discoveries date back to the formation of gorges, as these gorges expose rocks that existed thousands of years ago. For example, the Olduvai Gorge in Tanzania led to the discovery of fossils and rocks that are two million years old. is the gorge a narrow and deep passage with steep rocky flanks; A gorge in the valley is an elongated depression between hills or mountains, often with a river running through them. A canyon is a narrow valley with steep rock walls between hills or mountains The Columbia River Gorge is 80 miles long, runs through the Cascade Range, and ends in the city of Portland, Oregon. Cliffs and other rock formations reach up to 4000 feet in some areas of the gorge. An area of great scenic beauty, there are more than 90 waterfalls along the Oregon side of the gorge. Tiger Leaping Gorge of the Jinsha River in southwest China rises more than 12,000 feet on the highest peak overlooking the gorge. The Three Gorges in China are famous for the newly built hydroelectric power plant on the Yangtze River, which radically changed the region and flooded many cities and archaeological sites. It has also created a clean energy source and a huge reservoir for better flood protection downstream and a very large picturesque lake and recreation area. The gorge is 75 miles long and is filled by the lake, which continues 120 miles upstream of the dam. The Niagara Gorge is located downstream of the famous Niagara Falls, on the border between New York State and Ontario, Canada.
It has been cut through the rock layers by the action of waterfalls over the past 11,000 years, forming nearly 7 miles of canyon. Considered one of the most beautiful in Europe, the 15-mile Verdon Gorge has limestone cliffs that reach up to 2300 feet above the river. The waters of the Verdon have an unusual turquoise green color of limestone that attracts many visitors to the area. * You can draw a single line drawing of any relief on the board that students can copy. Answer: A gorge is an I-shaped, narrow and deep valley formed by a river when it erodes rocks vertically. Gorges can be found all over the world. The largest U.S. canyons include the Grand Canyon, finger Lake Gorge, Columbia River Gorge, New River Gorge, and Canyon Lake Gorge. China`s gorges include the three gorges of the Yangtze River, the Grand Canyon of Yarlung Zangbo and the Gorges of Kali Gandaki. Victoria Falls Gorge and Olduvai Gorge are located in Africa; The Gorges de Verdun are located in Europe. 1.
Configure the PowerPoint program to display relief slides or print relief photos for use with the lesson. 2. Check the definitions of the landforms listed in the Background section. 3. Photocopy the relief worksheet (one per student) and collect paint supplies. A gorge can be formed by a glacier that cuts and forms steep rock formations on both sides. .