The structure of the earth’s crust of North America

Related posts:

1. The structure of the earth’s crust of South America As a result of the split of Gondwana 180 million years ago, South America separated from Africa and began to move westward. So there was the South American lithospheric plate. Thus, at the heart of South America is the “remnant” of Gondwana – the ancient South American platform, occupying the entire eastern part of the […]...
2. 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 […]...
3. 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, […]...
4. 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 […]...
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 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 […]...
7. 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 […]...
8. 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 […]...
9. 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 […]...
10. 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 […]...
11. 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 […]...
12. 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 […]...
13. 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. […]...
14. 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 […]...
15. 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 […]...
16. Geographical position of North America. History of discovery and exploration of the continent 1. On which components of nature are the most clearly reflected features of the geographical location of North America? The peculiarities of the geographical location of North America most clearly reflect on such natural components as soils, vegetation and fauna. Compare the nature of the Canadian Arctic archipelago and the central regions of Mexico, and […]...
17. 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 […]...
18. 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 […]...
19. From the history of discovery and research in North America Long before the discovery of America by Christopher Columbus, Normans visited the inhabitants of the Scandinavian Peninsula. In the X century. they led Eirik Raudi from the island of Iceland set off across the expanses of the ocean to the west and reached an unknown land – the island of Greenland. A thousand years ago, […]...
20. 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 […]...
21. Conservation areas in North America Under the influence of human economic activity, the nature of North America has changed significantly. To preserve natural complexes in their pristine form, many reserves and national parks have been created. Of course, the pearl of North American nature is Yellowstone National Park, created in 1874, it is located at an altitude of about 2300 […]...
22. 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 […]...
23. Basic facts on the topic “Physiographic location, discovery, study and relief of Eurasia” The physiographic position of Eurasia is determined by its size, a large extent from west to east and from north to south. Eurasia lies in all climatic belts of the Earth. It is the only continent that is washed by the waters of all four oceans. The coastline of the continent is strongly dissected, there […]...
24. The coastline of North America Unlike the continents of tropical latitudes, North America has a much more dismembered coastline. There are many islands, peninsulas, bays and straits. Near the northern and eastern shores of the continent lie islands of continental origin. Among them, Greenland is the largest island in the world. Its area is 3.5 times larger than the territory […]...
25. 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 […]...
26. Population distribution in North America In North America, there are 490 million people, or more than 7% of the world’s population. This is 1.5 times more than in South America, but half as much as in Africa. The average population density is 20.2 people / km2, which is almost 2.5 times less than the world average. The territory of the […]...
27. Lakes of North America North America is the mainland of large lakes. The pioneers of America, mastering new lands, liked to add the epithet “big” to the name of the geographical object. And we were not mistaken, because of the world’s eight largest lakes in the world, 8 are located here. Most of the lakes are mainly tectonic or […]...
28. Geological structure, minerals and climate of Oceania The geological structure of the islands of Oceania and their origin are closely related to the structure of the bottom of the Pacific Ocean. In the west of the Pacific, the Pacific and Indo-Australian plates converge, forming uplifts. In the places of their collision, earthquakes and volcanism are observed. Most of the islands of Oceania […]...
29. 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 […]...
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. 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 […]...
32. Relief of Eurasia Due to the complexity of the structure of the earth’s crust and the long history of its development, the surface of Eurasia is more diverse than other continents. Here are the largest plains The earth and the highest mountains, the deepest depression on land and the largest lowland of the world, which lies below the […]...
33. Forest steppes and steppes in North America In North America, the forest-steppe and steppe zones extend in the meridional direction from the taiga in the north to the coast of the Gulf of Mexico in the south. Here, west of the Mississippi, under conditions of a continental temperate and subtropical climate, precipitation falls less than in the east. Therefore, grassy vegetation predominates. […]...
34. Taiga in North America Further to the south a wide strip from the Cordillera to the coast of the Atlantic Ocean extends the taiga zone of the coniferous forest. Taiga also stretches a narrow strip along the Pacific coast in the north-west of the mainland. The climate of the taiga is moderate. In summer in these parts you can […]...
35. Key facts on the topic “Australia” Australia is the smallest continent in the world, entirely in the Southern Hemisphere. The southern tropic crosses the continent almost in the middle. Australia is remote from other continents by the expanses of the Indian and Pacific Oceans, which explains the uniqueness of its nature. Australia’s shoreline is indented a little. Australia was opened by […]...
36. 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 […]...
37. Countries in North America The political map of North America in general terms was formed at the beginning of the 20th century. Now in the region there are 37 states and territories. Of these, 23 are sovereign states, the rest are in the possession or under the tutelage of other states. Canada stands out for the area. USA and […]...
38. The racial makeup of the North American population The modern racial composition of the population of North America was formed after the colonization of the continent by Europeans. It is in many respects similar to the racial makeup of South America. Prior to the colonization of the continent, North America was inhabited by numerous tribes that came from Northeast Asia on the ice […]...
39. 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 […]...
40. Interesting facts about “North America” In 1992, humanity celebrated the 500th anniversary of the discovery of America. Was Christopher Columbus first? Numerous pre-Columbian discoveries of America left a big mark in history. Tobacco, whose homeland is Central America, was found in the burials of Egyptian pharaohs. But from where? There is evidence that the Vikings, Phoenicians and Chinese people visited […]...