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The most ancient structures in the world
Geological structure. Like North America, Eurasia millions of years ago was part of the ancient continent of Laurasia. From other continents of the globe it features an extremely complex crustal structure. This is the result of a long and complex geological history of its development.
Gigantic in size Eurasia is not only all Eurasian lithospheric plate . But some of the other Indo-Australian . Along the line of collision, the crust is crumpled in folds – they formed the Alpine-Himalayan fold belt . Therefore, the mountain that appeared in this zone, located on the fringes along the coast, as on other continents, and inland and southern parts of Eurasia. Along the East coast of the mainland stretches another fold belt Pacific . arising at the junction with the Pacific lithospheric plate.
Fold belt are seismic zones, where the intense movements of the earth’s crust, earthquakes and volcanoes. The largest active volcano in Europe within Mediterranean seismic belt is Hekla, Etna and Vesuvius . Active volcanoes of Asia – Klyuchevskaya Sopka, Fuji, Krakatoa, and others – are Pacific seismicheskogo. Continue reading
Pyramids of Giza – the history of the ancient monument of Egypt
Normally, under the concept of “pyramids of Giza” modern man understands only the complex of the three largest buildings of Khufu, khafra and menkaura. However, it is supplemented by a large number of smaller pyramids, temples, ancient cemeteries and, of course, the legendary Sphinx.
The history of the pyramids in Giza
The exact dates of construction of these monuments still can not say anything definite. However, there is no doubt that the construction of the entire complex in Giza valley was completed to the XXIII century BC that is the age of the youngest of the monument goes back at least 3200 years.
Initially, the shape of the pyramids was quite different than now. The main entrances to the tombs were built covered galleries connecting them with churches. But the main thing – the giant stone faces of graves covered the shining of Tura limestone, the thickness of which was about one meter. Continue reading
