Tectonic plateaus are formed due to Earth movements that cause uplift...
Introduction:
Tectonic plateaus are elevated landforms that are formed due to tectonic forces, primarily uplifts caused by the movement of tectonic plates. These plateaus are characterized by extensive flat or gently sloping surfaces and are found all over the world. In this question, we are asked to identify the tectonic plateaus among the given options.
Explanation:
Let's examine each option to identify the tectonic plateaus:
1. Meseta of Central Iberia:
The Meseta of Central Iberia is a large plateau located in Spain. It is formed by the uplift of the Central Iberian Range, which is a result of the collision between the Eurasian and African tectonic plates. The plateau is surrounded by mountain ranges and has an average elevation of around 600-800 meters. Therefore, this is a tectonic plateau.
2. Harz of Germany:
The Harz region in Germany is a mountain range rather than a plateau. It is formed by the uplift of ancient rocks during the Variscan orogeny. The region is characterized by rugged terrain, deep valleys, and steep slopes. Therefore, Harz is not a tectonic plateau.
3. Bolivian plateau found between two ranges of Andes:
The Bolivian plateau, also known as the Altiplano, is a high plateau located in the Andes Mountains of South America. It is situated between two ranges of the Andes, the Cordillera Occidental and the Cordillera Oriental. The plateau is the result of tectonic forces associated with the convergence of the Nazca and South American plates. It has an average elevation of around 3,700 meters and is characterized by vast expanses of flat or gently sloping terrain. Therefore, the Bolivian plateau is a tectonic plateau.
Conclusion:
Based on the above analysis, we can conclude that the tectonic plateaus found on Earth among the given options are:
1. Meseta of Central Iberia
2. Bolivian plateau found between two ranges of Andes.
Therefore, the correct answer is option 'D' - All of the above.
Tectonic plateaus are formed due to Earth movements that cause uplift...
All are due to tectonic reasons. Some plateaus like these are found between fold mountains such as the Bolivian plateau. These are distinct from the volcanic plateaus that are formed due to the flow and consolidation of lava.
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