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Bradford Ontario Dentist, Anthony Chan, B.D.S., L3Z 2B1 Dentist, Dr. arbodental.com |
For other uses, see Chan Chan (disambiguation). Coordinates: 8°6′40″S 79°04′32″W / 8.11111°S 79.07556°W
       The largest Pre-Columbian city in South America, Chan Chan is an archaeological site located in the Peruvian region of La Libertad, five km west of Trujillo. Chan Chan covers an area of approximately 20 km², and had a dense urban center of about 6km².[1] Chan Chan was constructed by the Chimor (the kingdom of the Chimú), a late intermediate period civilization which grew out of the remnants of the Moche civilization. The vast adobe city of Chan Chan was built by the Chimu around AD 850 and lasted until its conquest by the Inca Empire in AD 1470. It was the imperial capital of the Chimor until it was conquered in the 15th century. It is estimated that around 30,000 people lived in the city of Chan Chan. Chan Chan was added as a Unesco World Heritage Site in 1986. The city is severely threatened by tornados from El Niño, which causes heavy rains and flooding on the Peruvian coast. It is in a fertile, well-watered section of the coastal plain.[2] The city's ruins are additionally threatened by earthquakes and looters. Present-day visitors to Chan Chan can enter the Tschudi Complex, believed to be one of the later citadels built in the city. There are also several other Chimú and Moche ruins in the area around Trujillo. This site was discovered by the Conquistador Francisco Pizarro.
[edit] ArchitectureThe city is composed of ten walled citadels which housed ceremonial rooms, burial chambers, temples, reservoirs and some residences. Chan Chan is a triangular city surrounded by walls 50-60 feet high. A distinguishable aspect of Chan Chan is that there are no enclosures which open to the north. The tallest walls shelter against south-westerly winds from Peru's coast. Northern-facing walls gain the greatest exposure to the sun, serving both to block the wind and absorb sunlight where fog is frequent. The numerous walls throughout the city create labyrinth of passages. The walls themselves were constructed of adobe brick and were then covered with a smooth surface into which intricate designs were carved. There are two styles of design present in these carvings: one is a ‘realistic’ representation of subjects such as birds, fish, and small mammals; and the other is a more graphic, stylized representation of the same subjects. The carvings at Chan Chan depict crabs, turtles, and nets for catching various sea monsters. Chan Chan, unlike most other coastal ruins in Peru, is located extremely close to the Pacific Ocean. In 1998, The "Master Plan for Conservation and Management of the Chan Chan Archeological Complex" is drawn up by the Freedom National Culture Institute of Peru with contributions from the World Heritage Foundation - WHR, ICCROM and GCI. The Plan is approved by the Peruvian Government, with involvement at the highest levels up until today. [edit] Threats to Chan ChanAs the world's largest adobe city, the ancient structures of Chan Chan are today threatened by erosion due to changes in weather patterns - heavy rains, flooding, strong winds. According to the Peruvian Times, "Heavy rains are causing widespread damage to ancient ruins in Peru’s normally arid northern coast, says a regional director from the National Institute of Culture, INC."[3]
Chan Chan was left to the mercy of the weather. "The Chimú were a highly organized civilization" and any water damage to the adobe-brick structures of Chan Chan "could be repaired immediately," says Claudia Riess, a German native who now works as a guide to archaeological sites in northern Peru. Most of the damage to Chan Chan during the Chimú reign was caused by El Niño storms, which occurred every 25 to 50 years. Now they occur more frequently. Riess believes that climate change is a primary cause of the increasing rainfall—and she's not alone. A 2007 report published by Unesco describes the erosion of Chan Chan as "rapid and seemingly unstoppable" and concludes "global warming is likely to lead to greater extremes of drying and heavy rainfall." Peru's National Institute of Culture is supporting efforts to preserve the site. Tentlike protective structures are being erected in various parts of the city. Some friezes are being hardened with a solution of distilled water and cactus juice, while others have been photographed, then covered to protect them. Panels with pictures of the friezes allow visitors to see what the covered artwork looks like. Riess believes the best solution for Chan Chan would be a roof that stretches over the entire area and a fence to surround the city. But she acknowledges that both are impractical, given the ancient capital's sheer size. Meanwhile, the rains continue, and Chan Chan slowly dissolves from brick into mud.[4]
The full article can be found at Endangered Site: Chan Chan, Peru Andrew Curry writes about changes in weather patterns that affect ancient sites in his article "Climate Change: Sites in Peril", in the publication Archaeology:
The difference between a normal and a bad El Nino year can be tremendous. Peru's deserts typically get just over an inch of rain per year. In 1998, the last severe El Nino season, the region was doused with 120 inches, which caused serious flooding. Water takes a heavy toll on exposed archaeological sites, many of which are located along rivers or on easily eroded slopes. Ironically, archaeologists have made the problem worse. "If we don't mess with the sites, water runs off without doing too much damage," says University of Maine archaeologist Dan Sandweiss. "But if you excavate, that's the end of them, basically." Holes made by looters also channel and trap moisture, doing more damage. Take Chan Chan, an elaborately planned city eight miles square that dates back 1,000 years. Made of unfired mud brick, Chan Chan's pyramids and palaces were put on UNESCO's list of World Heritage Sites in Danger in 1986 because they were threatened by erosion. Over the past two decades, the site has deteriorated steadily. Researchers are investigating whether global warming could make El Nino occur more frequently. "There's the potential for greater destruction if the pace of El Nino events increases," says Sandweiss. So far, climatologists can't say for sure what climate change will do to the powerful weather phenomenon. "The models are all over the place," says National Oceanic and Atmospheric Administration climatologist David Enfield. "We're up against a huge uncertainty at present." As climate experts work to refine their predictions, archaeologists anxiously await the arrival of the next El Nino.[5]
The full article can be found at Climate Change: Sites in Peril [edit] References
[edit] External links
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