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Toca Da Tira Peia
Toca da Tira Peia is a rock shelter site, located in the municipality Coronel José Dias, Piauí state, near the Serra da Capivara National Park, Brazil, thought to hold evidence of prehistoric human presence in South America dating to 22,000 years ago. Site The Toca da Tira Peia rockshelter was discovered in 2008. There are four well preserved sediment layers, the youngest of which dates to 4,000 years BP. 113 knapped stone tools and artifacts have been recovered. The site has been dated through optically stimulated luminescence technique. "Digging turned up 113 stone artifacts consisting of tools and tool debris in five soil layers. Using a technique that measures natural radiation damage in excavated quartz grains, the scientists estimated that the last exposure of soil to sunlight ranged from about 4,000 years ago in the top layer to 22,000 years ago in the third layer." According to the authors, this site offers some advantages to the other sites such as Pedra Furada i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coronel José Dias
Coronel José Dias is a municipality in the state of Piauí in the Northeast region of Brazil. See also *List of municipalities in Piauí This is a list of the municipalities in the state of Piauí (PI), located in the Northeast Region of Brazil. Piauí is divided into 224 municipalities, which are grouped into 15 microregions, which are grouped into 4 mesoregions. See als ... References Municipalities in Piauí {{Piauí-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piauí
Piaui (, ) is one of the states of Brazil, located in the country's Northeast Region. The state has 1.6% of the Brazilian population and produces 0.7% of the Brazilian GDP. Piaui has the shortest coastline of any coastal Brazilian state at 66 km (41 mi), and the capital, Teresina, is the only state capital in the northeast to be located inland. The reason for this is, unlike the rest of the area, Piaui was first colonised inland and slowly expanded towards the ocean, rather than the other way around. In the southeast of the state, the National Park of Serra da Capivara is a UNESCO World Heritage Site. The park has more than 400 archaeological sites and the largest concentration of rock paintings in the world, in a landscape dominated by canyons and caatinga. History The state has many notable archaeological sites, including Serra de Capivara National Park and Sete Cidades National Park, which are rich in remains of prehistoric Paleo-Indian and sedentary-based In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serra Da Capivara National Park
Serra da Capivara National Park (Portuguese: ''Parque Nacional Serra da Capivara'', , locally ) is a national park in the Northeastern region of Brazil. The area has many prehistoric paintings. The name of the mountain range that defines the park, "Serra da Capivara," literally means " Capybara Hills" in Portuguese. This area has the largest and the oldest concentration of prehistoric sites in the Americas. Scientific studies confirm that the Capivara mountain range was densely populated in the pre-Columbian Era. Location It is located in northeast state of Piauí, between latitudes 8° 26' 50" and 8° 54' 23" south and longitudes 42° 19' 47" and 42° 45' 51" west. It falls within the municipal areas of São Raimundo Nonato, São João do Piauí, Coronel José Dias and Canto do Buriti. It has an area of 1291.4 square kilometres (319,000 acres). The Capivara-Confusões Ecological Corridor, created in 2006, links the park to the Serra das Confusões National Park. Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area and the seventh most populous. Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 States of Brazil, states and the Federal District (Brazil), Federal District. It is the largest country to have Portuguese language, Portuguese as an List of territorial entities where Portuguese is an official language, official language and the only one in the Americas; one of the most Multiculturalism, multicultural and ethnically diverse nations, due to over a century of mass Immigration to Brazil, immigration from around the world; and the most populous Catholic Church by country, Roman Catholic-majority country. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rockshelter
A rock shelter (also rockhouse, crepuscular cave, bluff shelter, or abri) is a shallow cave-like opening at the base of a bluff or cliff. In contrast to solutional caves (karst), which are often many miles long, rock shelters are almost always modest in size and extent. Formation Rock shelters form because a rock stratum such as sandstone that is resistant to erosion and weathering has formed a cliff or bluff, but a softer stratum, more subject to erosion and weathering, lies just below the resistant stratum, and thus undercuts the cliff. In arid areas, wind erosion (Aeolian erosion) can be an important factor in rockhouse formation. In most humid areas, the most important factor in rockhouse formation is frost spalling, where the softer, more porous rock underneath is pushed off, tiny pieces at a time, by frost expansion from water frozen in the pores. Erosion from moving water is seldom a significant factor. Many rock shelters are found under waterfalls. File:Rock shelt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optically Stimulated Luminescence
In physics, optically stimulated luminescence (OSL) is a method for measuring doses from ionizing radiation. It is used in at least two applications: * Luminescence dating of ancient materials: mainly geological sediments and sometimes fired pottery, bricks etc., although in the latter case thermoluminescence dating is used more often * Radiation dosimetry, which is the measurement of accumulated radiation dose in the tissues of health care, nuclear, research and other workers, as well as in building materials in regions of nuclear disaster The method makes use of electrons trapped between the valence and conduction bands in the crystalline structure of certain minerals (most commonly quartz and feldspar). The trapping sites are imperfections of the lattice — impurities or defects. The ionizing radiation produces electron-hole pairs: Electrons are in the conduction band and holes in the valence band. The electrons that have been excited to the conduction band may become entrap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedra Furada Sites
Pedra Furada (, meaning pierced rock) is an important collection of over 800 archaeological sites in the state of Piauí, Brazil. These include hundreds of rock paintings dating from circa 12,000 years before present. More importantly, charcoal from very ancient fires and stone shards that may be interpreted as tools found at the location were dated from 48,000 to 32,000 years before present, suggesting the possibility of a human presence tens of thousand of years prior to the arrival of the Clovis people in North America. In 1973, a Brazilian and French team excavating a site located in the southeastern portion of what is now the Serra da Capivara National Park discovered the first finds. The discovery was reported by the Brazilian archaeologist Niède Guidon, who published her findings in 1986. She has since conducted extensive excavations and published other findings. Excavations Pedra Furada includes a collection of rock shelters used for thousands of years by human popu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caverna Da Pedra Pintada
Caverna da Pedra Pintada (Painted Rock Cave ), is an archaeological site in northern Brazil, with evidence of human presence dating ca. 11,200 years ago.Saraceni, Jessica E. and Adriana Franco da Sá"People of South America."''Archaeology.'' Vol. 49, No. 4, July/August 1996. Retrieved 9 April 2012.Wilford, John Noble ''New York Times.'' 23 April 1996, Retrieved 9 April 2012. This find has challenged previous thinking about patterns of human settlement in South America. Anna C. Roosevelt, an American archaeologist and primary researcher here since 1990, believes that findings from the cave show there were Paleoindians this far south and with an independent culture that existed at the same time as other early Native Americans were active on the Great Plains of North America. Formerly researchers believed that Amazonian settlements arose later than those in the Andes, and were developed by migrants from the highlands. Location Caverna da Pedra Pintada is located near the town of M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archaeological Sites In Brazil
Archaeology or archeology is the scientific study of human activity through the recovery and analysis of material culture. The archaeological record consists of artifacts, architecture, biofacts or ecofacts, sites, and cultural landscapes. Archaeology can be considered both a social science and a branch of the humanities. It is usually considered an independent academic discipline, but may also be classified as part of anthropology (in North America – the four-field approach), history or geography. Archaeologists study human prehistory and history, from the development of the first stone tools at Lomekwi in East Africa 3.3 million years ago up until recent decades. Archaeology is distinct from palaeontology, which is the study of fossil remains. Archaeology is particularly important for learning about prehistoric societies, for which, by definition, there are no written records. Prehistory includes over 99% of the human past, from the Paleolithic until the advent of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pre-Clovis Archaeological Sites In The Americas
The Clovis culture is a prehistoric Paleoamerican culture, named for distinct stone and bone tools found in close association with Pleistocene fauna, particularly two mammoths, at Blackwater Locality No. 1 near Clovis, New Mexico, in 1936 and 1937 (though Paleoindian artifacts had been found at the site since the 1920s). It appears around 11,500–11,000 uncalibrated years before present (YBP)"Clovis Culture" entry in the ''Concise Oxford Dictionary of Archaeology'': "9,500–9,000 BC". at the end of the last glacial period and is characterized by the manufacture of " Clovis points" and distinctive bone and ivory tools. Archaeologists' most precise determinations at present suggest this radiocarbon age is equal to roughly 13,200 to 12,900 calendar years ago. The only human burial that has been directly associated with tools from the Clovis culture included the remains of an infant boy researchers named Anzick-1. Paleogenetic analyses of Anzick-1's ancient nuclear, mitocho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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