Volcanoes of the Atlantic Ocean

The only exception is made for the western parts of North America the United States. There are many such areas, where tertiary volcanoes can not be sharply separated from the later. Volcanoes are located in rows, marked by one common trait. A cursory glance at the map shows that the distribution of volcanoes there is a remarkable regularity. Almost all of the active volcanoes lie near the coast or on islands. Inside the continent, though not very far from the sea, is only part of the Ararat and the Mexican and South American volcanoes. However, the latter in its entirety can be regarded as a coastal chain. Similarly, most of extinct volcanoes we meet or at the seashore, or on the shores of large inland lakes and seas that exist now or existed before. However, here the number of exceptions is much greater. Upon further examination of the map, we note that on the mainland shore volcanoes are distributed unevenly and far in the huge number occur only where the ridges are located along the coast and abruptly break around them. The third very important feature, first pointed out by Leopold r. Buhom in his classic work, The Canary Islands, is a member (linear) the location of most volcanoes. Even at a cursory glance at the map, these series in most cases, striking, and it would be quite superfluous to enumerate them separately. These series reflect the direction of large cracks that extend to depth. First, together with ordinary volcanoes distinguish more central volcanoes. The latter represent a group in which are scattered around a center other craters are not found in their arrangement of regular series. But it is highly likely that this type can be reduced to cracks, which, starting at a certain point in different directions in the form of rays. Leaving aside these very important details that we find in the distribution of volcanoes and other curious feature: it turns out that most volcanoes are located around the Great (Pacific) Ocean. Starting from Tierra del Fuego, along the west coast of America up to the Alaskan runs with short breaks a long chain of large volcanoes, some active, some extinct. For Alaska, the island begins a series of volcanoes, has a curve, curved in the form of garlands. In the Bering Strait between America and Asia are the Aleutian Islands with its numerous volcanoes, followed by Kamchatka, Kuril Islands, Japan, Liu-Kiu, Formosa, Philippines, and finally, Maluku. In the south they are adjacent to the long row of volcanoes, which, beginning in the Bay of Bengal extends to New Guinea through Sumatra, Java and other islands to the east of the latter. For New Guinea between 10 and 20 ° south latitude, is also a lot of small volcanic islands that end, and Marquesas Islands Association. Between islands and the coast of South America alone stands Easter Island, trailing a huge ring, which covers most of the ocean and concludes in his heart of the majestic volcanoes of the Sandwich Islands and almost three-quarters of all active volcanoes belong to this ring. Similar features in the distribution of volcanoes, is not observed in any other area. In the Atlantic, there is only a short chain in the Lesser Antilles. Some groups of volcanic islands scattered across the ocean. One of the volcanic line, beginning from the African coast, goes far out to sea, but it is impossible to find even a remote similarity with the above ring the Pacific Ocean. The same thing we see in the Indian and South Arctic Oceans. Turning to a brief overview of the major volcanic regions of the earth, we meet a lot of features not known to us and see what Mount Vesuvius, and other fire-breathing mountains of Italy, represent only a faint picture of the terrifying power that reaches the eruption. However, this does not prevent the Italian volcanoes serve as excellent examples of when we first met with the question, especially as they are, because of its accessibility, studied in great detail. We will look at volcanoes Atlantic and Indian oceans, to the huge ring the Pacific Ocean and conclude our review of the Southern Arctic Ocean with its sporadically active volcanoes. At the northern edge of the Atlantic Ocean on the island of Iceland is one of the finest centers of volcanic activity. Compared with the conventional type, which serves as a representative of Mount Vesuvius eruption of the area and the external shape of volcanoes pose a lot of features. Because of this, Iceland sheds considerable light on some of the earliest periods of education. Icelandic volcanoes accurately studied only very recently. True, their eruptions were observed and described for centuries, and gloomy island was repeatedly visited by foreign naturalists, but all studies were limited to populated southern part of it, where under the influence of moisture and heat emitted by the Gulf Stream, grown lush meadows, delivering livelihood energetic and undemanding northerners. However, the most interesting interior and north-western regions of Iceland remained unexplored, as travel on them involve extraordinary hardship and deprivation. Huge glaciers and vast areas covered by bare lava or volcanic ash, turning the country in the bleak desert. Throughout the entire miles is not any vegetation, and many of these wild places are not yet stepped foot man. Science has been enriched by important information about Iceland, through the efforts of Ienstrupa and Hellanda especially Dreadnaught Icelander Toroddsena.