What is rift valley in geography?
What is rift valley in geography?
A rift valley is a lowland region that forms where Earth’s tectonic plates move apart, or rift. Rift valleys are found both on land and at the bottom of the ocean, where they are created by the process of seafloor spreading.
What are the characteristics of rift valley?
A rift valley is a linear shaped lowland between several highlands or mountain ranges created by the action of a geologic rift. Rifts are formed as a result of the pulling apart of the lithosphere due to extensional tectonics. The linear depression may subsequently be further deepened by the forces of erosion.
What is the importance of a rift valley?
The rift valleys are enormous fractures affecting the continental plates that widen progressively with time: they represent the first stages in the complex process of extension and rupture of continents and anticipate the development of new oceanic basins between them.
What is rift valley class6?
A rift valley is a lowland region that forms where Earth’s tectonic plates move apart. When two faults occur simultaneously, the portion of a land between them may get elevated or get depressed. The depressed piece of land between two or more parallel faults is forms a rift valley.
How rift valley was formed?
Rift valleys are formed by the movement of plate tectonics; moreover, plate tectonics are formed when tectonic plates separate or move apart from each other. When these plates separate, they move in opposite directions at divergent plate boundaries.
Where is the rift valley?
Eastern Africa
The Rift Valley, located in Eastern Africa, covers just over 2% of the continent and spreads over seven countries (Map 5 and Table 29). min. max. The Rift Valley consists of a group of independent interior basins, extending from Djibouti in the north to Tanzania in the south, nearly half being located in Ethiopia.
What are examples of rift valleys?
The East African Rift, the Baikal Rift Valley, the West Antarctic Rift, and the Rio Grande Rift are Earth’s major active continental rift valleys. The East African Rift is part of the “Great Rift Valley” system discussed below.
How was Rift Valley formed?
A rift valley is a lowland region that forms where Earth’s tectonic plates move apart, or rift. A rift valley is a lowland region that forms where Earth’s tectonic plates move apart, or rift. Rift valleys are found both on land and at the bottom of the ocean, where they are created by the process of seafloor spreading.
How was the Great Rift valley formed?
Geologists know that the Rift Valley was formed by violent subterranean forces that tore apart the earth’s crust. These forces caused huge chunks of the crust to sink between parallel fault lines and force up molten rock in volcanic eruptions.
What is a rift valley class 7?
Answer: A rift valley is formed on a divergent plate boundary when a block of land between two almost parallel faults sinks down. For example, the Narmada Valley in India, lying between the Satpura and Vindhya ranges, is a rift valley.
Which river flows in rift valley?
The Narmada and the Tapi are the major rivers in India that flow through rift valleys.
How is rift valley formed?