The structure of the earth’s crust of South America

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1. The structure of the earth’s crust of Africa The relief depends on the structure of the earth’s crust, which was formed for a long time. Under the influence of internal and external processes, the main tectonic structures of Africa emerged and deposits of various minerals were formed to the origin. Covered 2-3 billion years ago, Africa’s high mountain systems under the influence of […]...
2. The structure of the earth’s crust of North America North America along with Eurasia is the remnant of the ancient continent of the northern hemisphere of Laurasia, which began to split into modern continents at the end of the Mesozoic era about 100 million years ago. The oldest and largest in area tectonic structure of North America is the North American platform, which is […]...
3. The structure of the earth’s crust of Australia Australia is located in the central part of the Indo-Australian lithospheric plate. Consequently, this is the only continent on which there are no active volcanoes, and earthquakes occur very rarely and do not have destructive power. Australia, like Africa, is the remnant of the ancient mainland of Gondwana, about 180 million years ago split into […]...
4. The relief and minerals of South America 1. What processes form the relief of the east of the continent? To answer this question, you need to compare two maps – a map of the structure of the earth’s crust and a map of the modern relief. Look at these maps and compare the structure of the earth’s crust in the east and […]...
5. The structure of the earth’s crust and the subglacial relief of Antarctica The structure of the earth’s crust. In the middle of XX century. among scientists there were discussions about what is hidden under the glacial armor of Antarctica: the ocean, the archipelago or the continuous continent. The final answer was given by studies of the earth’s crust. So it was established that the Earth’s crust of […]...
6. The structure of the Earth’s crust of Eurasia The territory of Eurasia has been formed for hundreds of millions of years. The structure of the earth’s crust of Eurasia is more complex than that of other continents. Eurasia is located within three large lithospheric plates: the Eurasian, the Indo-Australian and the North American. At the heart of the lithospheric plates are several ancient […]...
7. Minerals of South America The wealth and diversity of minerals in South America are due to the structure of the earth’s crust. Their origin and location is associated with tectonic structures, the activities of the internal and external forces of the Earth. In the folded areas and shields of the ancient platforms, mainly find ore minerals of igneous origin. […]...
8. The relief of South America The geological structure of South America is connected with its relief. At first glance at the physical map of the continent, it can be divided into three parts: lowland – in the center, plateau – in the east, highland – in the west. Platforms on the east of the continent correspond to large plains. On […]...
9. Key facts on the topic “South America” The continents of South and North America form a single part of oppression. The northern part of South America crosses the equator, the middle part – the Southern Tropic, and the southern part of the continent reaches 54 ° S. extending into temperate latitudes. Part of the world America was discovered by Christopher Columbus in […]...
10. Rivers of South America Since South America is the wettest continent of the world, the river network here is very dense. On the mainland, the longest and deepest rivers of the planet flow. The main watershed in South America is the Andes. Since the mountains lie in the extreme west of the continent, most rivers of South America belong […]...
11. Features of the organic world of South America and the change of its natural complexes by man Features of the organic world of the continent. The diversity of the natural conditions of South America determines the species richness of plants and animals, and the remoteness from other continents is their originality. Since in the past geological era, South America was part of the single continent of Gondwana, some plant forks are similar […]...
12. Relation between the forms of the Earth relief and the structure of the lithosphere The lithosphere is the hard shell of the Earth, consisting of the earth’s crust and the upper layer of the mantle. Forty years ago, a scientific theory of lithospheric plates arose. According to this theory, the lithosphere is broken by giant cracks into separate blocks – lithospheric plates. The boundaries of the plates pass along […]...
13. The physiographic location of South America South America together with the North form a single part of the world – America. South America, like Africa, is crossed by the equator, so it is located simultaneously in both the Northern and Southern Hemispheres. But unlike Africa, most of the continent lies south of the equator. Consequently, like in Australia, in most of […]...
14. Forming the climate of South America The climate of South America is similar to the climate of other continents of tropical latitudes – Africa and Australia, although here the territories with dry climate are much smaller. By the amount of precipitation, no continent can compete with South America. All these features are determined by a number of climate-forming factors. Like other […]...
15. The population of South America According to scientists, South America began to be populated 15-17 thousand years ago by Indians from North America. They belong to the Mongoloid race. Therefore, the most probable is that their ancestors came to America from Asia. By the time the Europeans discovered South America, it was inhabited by various Indian peoples, standing at different […]...
16. Climatic zones and areas of South America As the equator passes through the northern part of South America, the continent is mainly located in the equatorial, subequatorial and tropical climatic zones. Only the southern part of the continent is in the subtropical and temperate zones. Equatorial air masses dominate in the equatorial climate zone during the year and an area of ​​low […]...
17. The history of discovery and exploration of South America Genoese sailor Christopher Columbus, having received the consent of the Spanish king, went to seek a sea route to India. In 1492 an expedition on three ships set off across the Atlantic Ocean to the west. On day 70, the sailors of Columbus saw the earth. So America was discovered. After the first voyage, Columbus […]...
18. General information on South America The area is 17.8 million km2. The population is -370 million people. The length of the coastline is 26 thousand km. The highest point above sea level is in Aconcagua. The lowest point from the sea level is the Valdez Peninsula. The longest river is the Amazon from Ucayali. The largest lake is Maracaibo. The […]...
19. Natural areas of South America 1. What are the features of the similarities and differences between the natural zones of South America and Africa. You already know that distinguishing features of similarities and differences is a method of comparison. Carefully study the maps of the natural areas of South America and Africa. Performing task 2 after 42, you compared the […]...
20. The minerals of Africa The occurrence of minerals is associated with the geological structure of the continent. On the shields, where the crystalline rocks of the foundation of the platform come to the surface, and deposits of ore minerals are found in the folding belts of different ages. The so-called “copper belt”, which extends through all of East Africa […]...
21. Geographical position of South America 1. Which of these continents should be more diverse? Why? One of the main factors determining the diversity of nature is the size of the continent. It can be assumed that the larger the territory, the more diverse it is. In addition to size, the diversity of nature is affected by the shape of the […]...
22. Lakes and glaciers of South America Lakes. There are not many big lakes in South America. The largest of them is Maracaibo in the north of the mainland. The basin of this lake has a tectonic origin and is located in the crust of the earth’s crust. The lake connects with a narrow strait with the Caribbean Sea, for which it […]...
23. Countries of South America The domination of the colonialists in South America, which began since its discovery, ended in the early 19th century. as a result of the national liberation struggle of the peoples of the continent. Participated in this fight and the indigenous people – the Indians, and representatives of mixed races, and European immigrants. The borders of […]...
24. Interesting facts on the topic “South America” For the first time, he proposed to name the German geographer Martin Waldzemüller, discovered by Christopher Columbus, by the name of Amerigo Vespucci in 1507, at first the name only concerned the Southern continent, and later spread to the North. The first who crossed the Isthmus of Panama and set foot in 1513 on the […]...
25. Physiographic location of North America The location of North America on the earth’s surface differs significantly from the physico-geographical position of the continents of tropical latitudes. This explains the dissimilarity of its nature with the nature of the continents studied by us. The lines of the equator and the zero meridian do not apply to North America. It is entirely […]...
26. The population of North America 1. What is the origin of the peoples of North America? The origin of the peoples of North America, as well as of the peoples of South America, is the history of the conquest and settlement of continents by Europeans. If in the colonization of South America the greatest participation was taken by the Spaniards […]...
27. Relief and minerals of North America 1. Explain the location of large relief forms on the mainland. Why are the Cordilleras located in the west of the mainland? Map the physical map of North America with a map of the structure of the earth’s crust. The North American platform is expressed in relief by the Central and Great Plains, and the […]...
28. Forming the climate of North America Since North America is very elongated from north to south, there are great differences in the temperature characteristics of its northern and southern parts. This is due to the increase in the angle of incidence of the sun’s rays on the earth’s surface. So, in the north even in July the average temperatures do not […]...
29. Relief of North America The relief of North America is closely connected with its tectonic structures. The ancient and young platforms in the modern relief correspond to the plains, the regions of folding in the extreme West and East – the mountains. Plains occupy 2/3 of the surface. The Canadian shield corresponds to the relief of the Laurentian Upland, […]...
30. Relief of Africa The structure of the earth’s crust of the continent determines its relief. Considering the physical map of Africa, we can conclude that the continent consists of elevated plains. Lowlands and high mountains are few. Lowlands are located mainly along the coasts of the seas and oceans. The eastern part of Africa occupies a rather high […]...
31. Key facts on the topic “North America” North America is completely located in the Northern and Western hemispheres, stretching almost 7 thousand km from north to south, has a heavily dissected coastline. Its closest neighboring continents are Eurasia and South America. The first of the Europeans reached the northern coasts of North America, the Normans in the 10th century, but information about […]...
32. Steppes of South America To the south of the savannah in the lower reaches of the Paran and Uruguay rivers stretches the subtropical steppe, which in South America is called pampa. And in fact, this is a very level territory. The huge treeless steppe is so monotonous that the traveler has the impression that he is lost and is […]...
33. The Australian Union 1. What are the minerals rich in the Australian Union? The Australian Union is a country occupying the whole continent that is part of the British Commonwealth of Nations. The Australian Union, which is called Australia, contains rich mineral deposits in its bowels. The regularity of the location of minerals depends on the structure of […]...
34. Common questions to countries in South America 1. How does the geographical position of Brazil affect its nature? Brazil is a huge country, occupying the fifth place in the world in terms of territory size and population. On the territory of Brazil there are four natural zones, but the contrast of the nature of the Amazonian lowland and the Brazilian plateau is […]...
35. Savannah and woodlands of South America The savanna and sparse forest zone occupies the Guiana and Brazilian plateaus and the Orinoco lowlands. Here, as elsewhere in the subequatorial belt, there are dry and wet seasons. In savannas of the Northern Hemisphere, called Llanos, a longer rainy season. Therefore there are more trees here than in the savannas of the Southern Hemisphere, […]...
36. High altitude Andes in South America The higher the mountains and the closer they are to the equator, the more have the natural belts from the foot to the top. In the Andes, near the equator, the moist equatorial forests rise to a height of 1500 m above sea level. Above the equatorial forests are replaced by a belt of mountain […]...
37. Climatic zones of North America Because of the considerable length from north to south, North America is located in all climatic zones of the northern hemisphere, except equatorial. In the arctic climatic zone throughout the year, the cold and dry Arctic air prevails. Here the harsh winters and cold summers. In winter, a polar night reigns. The annual amount of […]...
38. General information about North America The land area is 24.2 million km2. The population is -490 million people. The highest point above sea level is in McKinley. The lowest point from sea level is the Valley of Death. The longest river is Mississippi with Missouri. The largest lake is the Upper. The largest island is Greenland. North America is the […]...
39. Geographical location of Australia The uniqueness of the nature of Australia is associated with the peculiarities of its physical and geographical situation. Australia, unlike Africa, is completely located in the Southern Hemisphere relative to the equator. This explains why in its territory “everything is the opposite” in comparison with our Northern Hemisphere. In January, here is the middle of […]...
40. Rivers of North America Among Africa, Australia and South America, North America is second only to South America in terms of the density of the river network and the number of rivers, lakes and marshes. However, due to the heterogeneity of the climate, they are unevenly distributed. The rivers of North America belong to the Atlantic basins. Pacific and […]...