Экзаменационные билеты по геометрии 7 класс ответы

Dating > Экзаменационные билеты по геометрии 7 класс ответы

= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ➡ Link: http://portmezbergro.teddyvasya.ru/?dt&keyword=dating+cave+drawings&source=tvitch.tv2 ➡ Click here: http://portmezbergro.jayred.ru/?dt&keyword=dating+cave+drawings&source=tvitch.tv2 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

American cave and rock art that lay hidden for SIX THOUSAND YEARS offers unique and remarkable insight into how Native American societies lived their lives - Retrieved 25 April 2015. This pair of club-shaped symbols, found at Altamira are known as claviforms. Altamira Cave Paintings 34,000-15,000 BCE Contents • • • • • • • • Painting of a Bison c. Polychrome Animal Painting from Altamira c. EARLIEST PREHISTORIC CAVE ART For details of the oldest Stone Age cave art, see:. Altamira Cave Paintings: A Summary Located in northern Spain, not far from the village of Antillana del Mar in Cantabria, the Upper Paleolithic cave complex at Altamira is famous for its magnificent multi-coloured , as well as its and drawings. It is one of seventeen such caves unearthed along the mountains of North Spain near the Atlantic coast, on the main migratory route from the Middle East, which followed the North African coast, crossed the sea at Gibraltar and led through Spain into France. Other important Cantabrian sites of Ice Age include the c. First discovered in 1868, though not fully appreciated until the 1900s, Altamira was the first of the great caches of to be discovered, and despite other exciting finds in Cantabria and southern France, Altamira's paintings of bisons and other wild mammals are still the most vividly coloured and visually powerful examples of to be found on the continent of Europe. As usual, archeologists remain undecided about when Altamira's was first created. Early investigations suggested that the most of it was created at the same time as the - that is, during the early period of 15,000 BCE. But according to the most recent research, some drawings were made between 23,000 and 34,000 BCE, during the period of , contemporaneous with the and the. The general style at Altamira remains that of , as characterised by the pronounced realism of the figures represented. Indeed, Altamira's artists are renowned for how they used the natural contours of the cave to make their animal figures seem extra-real. The actual subterranean complex itself consists of a 270-metre long series of twisting passages ranging from 2-6 metres about 7-20 feet in height, in which more than 100 animal figures are depicted. Unlike most other decorated rock shelters of the Upper Paleolithic, Altamira cave was a place of domestic human habitation This was limited to the cave mouth and lobby area, although paintings and were created throughout the length of the cave. About 12,000 BCE, a landslide sealed the cave's entrance, thus preserving its contents until its accidental discovery in the late 19th century. Like many similar prehistoric caves, Altamira has been dogged by environmental and conservation problems. It was closed for conservation purposes in 1977 reopened 1982 , and again in 2002. Today, the cave is only accessible to scientists and a handful of visitors chosen by lottery. Meantime, the Spanish Ministry of Culture has opened a replica cave at the adjacent National Museum and Research Center of Altamira. Other replicas can be seen in the National Archeological Museum of Spain, Madrid, and in the Deutsches Museum, Munich. In 1985, Altamira was declared a UNESCO World Heritage site. In 2008, UNESCO added 17 additional caves to the Altamira World Heritage Site. For details about how the cave murals of Altamira fit into the evolution of Stone Age culture, see:. For a comparison with early African painting, please see the animal images on the c. Discovery The cave was first discovered in 1868 by Modesto Peres, a local hunter searching for his dog, but it wasn't until 1879 that the on the ceiling of the cave were spotted by Marcelino Sanz de Sautuola a local nobleman and amateur archeologist, when excavating the cave floor for artifacts. Sautuola examined the cave further along with Juan Vilanova y Piera, an archeologist from the University of Madrid, and the pair published a report 1880 stating that the cave's wall paintings and engravings belonged to the Palelithic era of prehistory. Experts who read the report, notably the French scholars Gabriel de Mortillet and Emile Cartailhac, ridiculed its findings at the 1880 Prehistorical Congress in Lisbon, although eventually, in 1902, they and other scientists in the archeological establishment admitted their mistake and acknowledged the authenticity of the Altamira paintings. For four decades thereafter Altamira was the world's leading showcase of prehistoric , until its eclipse by the Lascaux cave paintings in the late 1940s. Dating The first significant research into the age of Altamira's was done by French paleolithic scholars Andre Leroi-Gourhan and Annette Laming. Using the carbon 14 dating method, they found that two of the cave paintings dated to between 15,000 and 12,000 BCE, which placed them in the Magdalenian Style III period. In 2004, researchers analyzed eight strata in the floor of the cave: five corresponded to the Magdalenian era, between 12,000 and 13,500 BCE; two paintings along with a few related to the of between 15,200 and 17,630 BCE. But the main discovery was an eighth level, previously undetected, dating back to the Gravettian era of about 20,000 BCE. To everyone's astonishment, they found that certain artworks were created between 23,000 and 33,000 BCE. So the above artworks could be even older. These recent dating results are consistent with other finds in the region. In 2012, for example, a red dot and a hand print found at the El Castillo Cave - also in Cantabria - were dated to at least 39,000 BCE and 35,500 BCE respectively Aurignacian era , making them the of their type from any cave in Europe. Note: other ancient works from the Aurignacian period include: the 38,000 BCE ; the 38,000-33,000 BCE ; the c. Originally the cave had a huge covered entrance, some 20 metres 66 feet wide and 6 metres 40 feet high. This led directly into a large hall, usually lit by daylight, which was where the inhabitants lived. In about 12,000 BCE the entrance collapsed, leaving a smaller vestibule area. The hall immediately behind the entrance is the main picture gallery, which contains most of the cave's paintings. Known as the Chamber of the Frescoes, it is 18 metres 60 feet long, and about 9-10 metres 27-30 feet wide, with an extremely low ceiling about 3. At any rate, it is covered with about one hundred pictures of animals, mostly bison, painted in a beautiful polychrome of red, black and violet. There are several other featuring horses, wild boars including an eight-legged wild boar , and a stag, along with engravings of eight anthropomorphic figures, numerous handprints and hand outlines. The ceiling was initially painted with red figures, especially those of horses. Later the large multi-coloured bison were added. Lastly, just before the entrance collapsed a few of bison were added. The latter contains a large number of different signs and symbols, including a quantity of tectiforms. The Cave Art of Altamira Like the Lascaux cave, Altamira has three : coloured paintings, black drawings and rock engravings. As mentioned above, subjects are mostly animals bison, boar, deer, horses , although there are eight anthropomorphic figures and a large amount of geometric signs and symbols. The paintings are unique for several reasons. First, they are composed of many different colours up to three colours in a single animal , more than is common in most other examples of parietal art. The bisons in particular are depicted in varying shades, making them appear astonishingly lifelike. Second, the animals - twenty-five of which are depicted in life-size proportions - are depicted with unusual accuracy. The bisons are especially well rendered; so too is the red deer. Other animals are also depicted in detail, down to the texture of their fur and manes. Third, when composing their pictures, the Magdalenian artists took full advantage of the natural contours, facets and angles of the rock surface to make the figures as three-dimensional as possible. The drawings, which include some of the oldest and youngest prehistoric art in the complex, are outlined in black manganese oxide or charcoal and often smudged for maximum volume and relief. Subjects include animals and also hybrid figures humans with animal heads. Engravings at Altamira appear throughout the cave. Some are independent works, others are added to paintings either to boost volume or to complete the composition. In addition to Altamira's and , the cave also contains a large amount of , in the form of signs and symbols, most of which are still not understood. They include a number of unusual club-shaped images and tectiforms images shaped like an upward-pointing wedge or arrow , drawn and engraved in the most remote part of the cave, which have yet to be deciphered. Lastly, there is a quantity of finger marks and finger fluting. Note: For the best examples of finger fluting in Australia, see: c. Art Materials and Methods In general, one can say that the Altamira cave was slightly easier to paint than the cave at Lascaux. The ceiling of the main gallery, which hosts most of the paintings in the complex, is within easy reach and would have been relatively well lit by daylight. But this is more than offset by the advanced painting techniques shown by Altamira's artists which, in the opinion of many experts, gives them the edge over their prehistoric counterparts in France. Here, as elsewhere, artists relied on the same basic , of black, most shades of red, along with a range of warm colours, from earth brown to straw yellow. Nearly all were made from natural minerals, which do not decay. Iron-rich ochre, haematite and goethite produced the reds, yellow and browns, while manganese made the blacks. Variations in intensity or hue were typically obtained by diluting the pigment with juices, animal blood or saliva, or by scratching the rock to create a paler line. Painting Techniques At Lascaux, research shows that artists did not employ brushes to apply paint. Instead they used pads of moss or hair, or even blocks of raw colour. In addition, they developed a technique of spray-painting using hollowed out bones to blow paint onto the rock surface. Artists at Altamira used an identical method of spray painting, which worked as follows. Two hollow bones are used; one is positioned vertically in a container containing water mixed with a pigment like ochre; the other is held in the artist's mouth. As the artist blows air across the top of the upright hollow bone, the reduction in air pressure sucks the ochre up the vertical hollow bone, after which it is blown onto the rock by the jet of air from the bone in the mouth of the artist. A hollowed out colour-stained leg bone of a bird found at Altamira, was dated to approximately 16,000 BCE, proving that Solutrean-Magdalenian artists were adept at spray painting by this time. Curiously, unlike at Lascaux, where all the was performed using manganese for the black outlines, Altamira artists also used charcoal, right up until 12,000 BCE, just before the cave was sealed by a landslide. Other Prehistoric Caves in Spain Eighteen Stone Age caves decorated with various types of parietal art have been discovered in northern Spain. All have been grouped together and designated a UN World Heritage Site. These Paleolithic rock shelters are located in three different regions - Cantabria, Asturias, and the Basque region - and date from 35,000 to 11,000 BCE. It was this new species, that scholars believe was responsible for the explosion of cave painting and that began around 40,000 BCE. However, please note the alleged Neanderthal abstract painting and engraving at El Castillo Cave Cantabria c. Fortunately for us, the artwork in the Spanish caves was protected from vandalism and environmental decay by rockslides that sealed the entrances to the caves thus preserving their contents. Note: Another treasure of Iberian prehistoric art is the extensive collection of outdoor petroglyphs - the 22,000 BCE in northeast Portugal. The Stone Age sites in Spain other than Altamira listed by the UN include: in Cantabria , the Cave of Chufin, the Cave of Hornos de la Pena, the Cave of El Pendo, the Cave of La Garma, the Cave of Covalanas, the Complex of the Caves del Monte Castillo, Cave of Las Monedas, the Cave of Las Chimeneas, the Cave of El Castillo and the Cave of La Pasiega; in Asturias , the Cave of Tito Bustillo, the Cave of Candamo, the Cave of La Covaciella, the Cave of Llonin, and the Cueva del Pindal; in the Basque region , Cave of Altxerri, the Cave of Ekain, and the Cave of Santimamine. • For monumental Stone Age works, see:. • For the Paleolithic origins of painting and sculpture, see:. ENCYCLOPEDIA OF STONE AGE ART © visual-arts-cork.