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Clovis First Theory
The Clovis First theory refers to the hypothesis that the Clovis culture represents the earliest human presence in the Americas about 13,000 years ago. The theory dominated thinking on New World anthropology for much of the 20th century. Numerous claims of earlier human presence began to challenge the Clovis first model beginning in the 1990s, culminating in significant discoveries at Monte Verde, Chile, dating back 14,500 years. Early Dominance A 2005 study from Rutgers University theorized that the pre-1492 native populations of the Americas are the descendants of only 70 individuals who crossed the land bridge between Asia and North America. Historically, theories about migration into the Americas have revolved around migration from Beringia through the interior of North America. The discovery of artifacts in association with Pleistocene faunal remains near Clovis, New Mexico in the early 1930s required extension of the timeframe for the settlement of North America to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clovis Culture
The Clovis culture is an archaeological culture from the Paleoindian period of North America, spanning around 13,050 to 12,750 years Before Present (BP). The type site is Blackwater Draw locality No. 1 near Clovis, New Mexico, where stone tools were found alongside the remains of Columbian mammoths in 1929. Clovis sites have been found across North America. The most distinctive part of the Clovis culture toolkit are Clovis points, which are projectile points with a fluted, lanceolate shape.Fluted: Having a flake removed from the base, either on one or both sides.Lanceolate: Tapering to a point at one end, like the head of a lance. Clovis points are typically large, sometimes exceeding in length. These points were multifunctional, also serving as cutting tools. Other stone tools used by the Clovis culture include knives, scrapers, and bifacial tools, with bone tools including beveled rods and shaft wrenches, with possible ivory points also being identified. Hides, wood, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clovis, New Mexico
Clovis is a city in and the county seat of Curry County, New Mexico. The population was 38,567 at the 2020 United States census, 2020 census. Clovis is located in the New Mexico portion of the Llano Estacado, in the eastern part of the state. A largely agricultural community, closely bordering Texas, it is noted for its role in early rock music history and for nearby Cannon Air Force Base, current home to the 27th Special Operations Wing which is also known as "The Steadfast Line". A Paleo-Indian site was found near Clovis, where in 1929 a distinctive kind of stone spear-point was discovered. These points were called Clovis points, and the culture associated with them was named the Clovis culture. The Clovis people were early inhabitants who created a widespread culture in the New World. The Atchison, Topeka and Santa Fe Railway system helped establish Clovis over one hundred years ago, which continues to be a major hub of operations for that railroad and its successor, BNSF Rai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Site
In archaeology, a type site (American English) or type-site (British English) is the site used to define a particular archaeological culture or other typological unit, which is often named after it. For example, discoveries at La Tène and Hallstatt led scholars to divide the European Iron Age into the La Tène culture and Hallstatt culture, named after their respective type sites. The concept is similar to type localities in geology and type specimens in biology. Notable type sites Africa * Nok ( Kaduna, Nigeria), of the Nok culture East Asia * Banpo ( Yangshao culture, Neolithic Yangshao culture, China) * Liangzhu Town, near Hangzhou ( Liangzhu culture, Neolithic, China) * Songguk-ri (Middle Mumun culture, southern Korea) * Suemura cluster of kilns – Kilns of Sue pottery (Middle and Late Kofun period, Osaka, Japan) * Sanage cluster of kilns — Kilns of and ( Nara and Heian period, Aichi Prefecture, Japan) Europe *a river terrace of the River Som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quaternary Science Reviews
''Quaternary Science Reviews'' is a peer-reviewed scientific journal covering quaternary science. It was established in 1982 by Pergamon Press and is currently published by Elsevier. The editor-in-chief is C.V. Murray Wallace (University of Wollongong). According to the ''Journal Citation Reports'', the journal has a 2013 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a type of journal ranking. Journals with higher impact factor values are considered more prestigious or important within their field. The Impact Factor of a journa ... of 4.571. References External links * Elsevier academic journals Biweekly journals English-language journals Academic journals established in 1982 Quaternary science journals Archaeology journals {{archaeology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology (journal)
''Geology'' is a peer-reviewed publication of the Geological Society of America (GSA). GSA stated (in 2006) (ISSN 0091-7613) that it is the most widely read scientific journal in the field of earth science. It is published monthly, with each issue containing 20 or more articles. One of the goals of the journal is to provide a forum for shorter articles (four pages each) and less focus on purely academic research–type articles. According to the ''Journal Citation Reports'', the journal had a 2020 impact factor of 5.399. The journal is indexed in Scopus and SCImago The SCImago Journal Rank (SJR) indicator is a measure of the prestige of scholarly journals that accounts for both the number of citations received by a journal and the prestige of the journals where the citations come from. Etymology SCImag .... See also * List of scientific journals ** List of earth and atmospheric sciences journals References External links *Geology — Browse Issues [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Geological Institute
The American Geosciences Institute (AGI) is a nonprofit federation of about 50 geoscientific and professional organizations that represents geologists, geophysicists, and other earth scientists. The organization was founded in 1948. The name of the organization was changed from the American Geological Institute on October 1, 2011. The organization's offices are in Alexandria, Virginia. About Since 1966, AGI has produced GeoRef, a literature database for those studying the earth sciences. AGI operates the Center for Geosciences and Society. AGI's monthly magazine ''Geotimes'' became ''EARTH Magazine'' on September 1, 2008, with an increased focus on public communication of geoscience research. In April 2019, ''EARTH Magazine'' suspended publication and was folded into '' Nautilus Quarterly''. Mission The stated mission of AGI is to “represent and serve the geoscience community by providing collaborative leadership and information to connect Earth, science, and people.” See ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alternatives To The Clovis First Theory
The theory known as Clovis First was the predominant hypothesis among archaeologists in the second half of the 20th century to explain the peopling of the Americas. According to Clovis First, the people associated with the Clovis culture were the first inhabitants of the Americas. This hypothesis came to be challenged by ongoing studies that suggest pre-Clovis human occupation of the Americas. In 2011, following the excavation of an occupation site at Buttermilk Creek, Texas, a group of scientists identified the existence "of an occupation older than Clovis." At the site in Buttermilk, archaeologists discovered evidence of hunter-gatherer group living and the making of projectile spear points, blades, choppers, and other stone tools. The tools found were made from a local chert and could be dated back to as early as 15,000 years ago. The primary support for this claim was that no solid evidence of pre-Clovis human habitation had been found. According to the standard accepted theo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clovis Point
Clovis points are the characteristically fluted projectile points associated with the New World Clovis culture, a prehistoric Paleo-American culture. They are present in dense concentrations across much of North America and they are largely restricted to the north of South America. There are slight differences in points found in the Eastern United States sometimes leading them to be called "Clovis-like". Clovis points date to the Early Paleoindian period, with all known points dating from roughly 13,400–12,700 years ago (11,500 to 10,800 C14 years BP). As an example, Clovis remains at the Murry Springs Site date to around 12,900 calendar years ago (10,900 ± 50 C14 years BP). Clovis fluted points are named after the city of Clovis, New Mexico, where examples were first found in 1929 by Ridgely Whiteman. A typical Clovis point is a medium to large lanceolate point with sharp edges, a third of an inch thick, one to two inches wide, and about long. Sides are parallel to convex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Settlement Of The Americas
It is believed that the peopling of the Americas began when Paleolithic hunter-gatherers (Paleo-Indians) entered North America from the North Asian Mammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the Last Glacial Maximum (26,000 to 19,000 years ago). These populations expanded south of the Laurentide Ice Sheet and spread rapidly southward, occupying both North and South America no later than 14,000 years ago, and possibly even before 20,000 years ago. The earliest populations in the Americas, before roughly 10,000 years ago, are known as Paleo-Indians. Indigenous peoples of the Americas have been linked to Siberian populations by proposed linguistic factors, the distribution of blood types, and in genetic composition as reflected by molecular data, such as DNA. While there is general agreement that the Americas were first settled from Asia, the pattern of migration and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Presence In The Americas
It is believed that the peopling of the Americas began when Paleolithic hunter-gatherers (Paleo-Indians) entered North America from the North Asian Mammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the Last Glacial Maximum (26,000 to 19,000 years ago). These populations expanded south of the Laurentide Ice Sheet and spread rapidly southward, occupying both North and South America no later than 14,000 years ago, and possibly even before 20,000 years ago. The earliest populations in the Americas, before roughly 10,000 years ago, are known as Paleo-Indians. Indigenous peoples of the Americas have been linked to Siberian populations by proposed linguistic factors, the distribution of blood types, and in genetic composition as reflected by molecular data, such as DNA. While there is general agreement that the Americas were first settled from Asia, the pattern of migration and the pl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Americas
The Americas, sometimes collectively called America, are a landmass comprising the totality of North America and South America.''Webster's New World College Dictionary'', 2010 by Wiley Publishing, Inc., Cleveland, Ohio. When viewed as a single continent, the Americas or America is the 2nd largest continent by area after Asia, and is the 3rd largest continent by population. The Americas make up most of the land in Earth's Western Hemisphere and comprise the New World. Along with their Lists of islands of the Americas, associated islands, the Americas cover 8% of Earth's total surface area and 28.4% of its land area. The topography is dominated by the American Cordillera, a long chain of mountains that runs the length of the west coast. The flatter eastern side of the Americas is dominated by large river basins, such as the Amazon basin, Amazon, St. Lawrence River–Great Lakes, Mississippi River System, Mississippi, and Río de la Plata Basin, La Plata basins. Since the Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indigenous Peoples Of The Americas
In the Americas, Indigenous peoples comprise the two continents' pre-Columbian inhabitants, as well as the ethnic groups that identify with them in the 15th century, as well as the ethnic groups that identify with the pre-Columbian population of the Americas as such. These populations exhibit significant diversity; some Indigenous peoples were historically hunter-gatherers, while others practiced agriculture and aquaculture. Various Indigenous societies developed complex social structures, including pre-contact monumental architecture, organized city, cities, city-states, chiefdoms, state (polity), states, monarchy, kingdoms, republics, confederation, confederacies, and empires. These societies possessed varying levels of knowledge in fields such as Pre-Columbian engineering in the Americas, engineering, Pre-Columbian architecture, architecture, mathematics, astronomy, History of writing, writing, physics, medicine, Pre-Columbian agriculture, agriculture, irrigation, geology, minin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
