Holliday , A. Timothy Jull. The Great Plains of North America have a rich archaeological record that spans the period from Late Glacial to Historic times, a period that also witnessed significant changes in climate and ecology. Chronometric dating of archaeo-logical sites in many areas of the Great Plains, however, is often problematic, largely because charcoal and wood-the preferred materials for radiocarbon dating-are scarce in this grassland environment with few trees. A study that incorporates multiple approaches is required to solve issues induced by the sedimentological context, which is rich in both freshwater diatoms and phytoliths from quite different origins. Analysis of carbon-derived data allows us to draw a succession model of dry and wet episodes and to associate it with a chro-nological framework. N2 – The Great Plains of North America have a rich archaeological record that spans the period from Late Glacial to Historic times, a period that also witnessed significant changes in climate and ecology. AB – The Great Plains of North America have a rich archaeological record that spans the period from Late Glacial to Historic times, a period that also witnessed significant changes in climate and ecology. Anthropology, School of Geosciences. Overview Fingerprint.
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Radiocarbon dating of the human occupation of Australia prior to 40 ka BP; successes and pitfalls. L K Fifield, M I Bird, C M Turney, P A Hausladen, G M Santos.
Their origin and their relationship to anatomically modern people are unclear and are clouded by poor chronology. Lithic artefacts of’ the Mousterian type, found throughout Europe and the Mediterranean Basin, are believed to be the tool kit of the Neanderthals, but dates within Mousterian-bearing deposits are extremely rare. We report here on 20 high-quality uranium-series dates from Mousterian beds at Abric Romani, a rock shelter near Barcelona, Spain.
The dates range from 39 to 60 kyr before present BP in an orderly stratigraphic succession and provide precise chronological control on an important Mousterian archaeological site. Dennell, R. Nature , Blackwell, B.
Radiocarbon dating supports Aboriginal occupation of South Australia for 29,000 years
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The Norte Chico region on the coast of Peru north of Lima consists of four adjacent river valleys–Huaura, Supe, Pativilca and Fortaleza–in which archaeologists have been aware of a number of apparently early sites for more than 40 years refs 1- 3. To clarify the early chronology in this region, we undertook fieldwork in and to determine the dates of occupation of sites in the Fortaleza and Pativilca valleys.
Here we present 95 new radiocarbon dates from a sample of 13 of more than 20 large, early sites. These sites share certain basic characteristics, including large-scale monumental architecture, extensive residential architecture and a lack of ceramics. The 95 new dates confirm the emergence and development of a major cultural complex in this region during the Late Archaic period between and calibrated calendar years bc. The results help to redefine a broader understanding of the respective roles of agricultural and fishing economies in the beginnings of civilization in South America.
The Norte Chico region has greatly influenced the development of theories on the rise of complex societies in South America.
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International Archaeological Reports since 1974
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Radiocarbon dating of shell middens — remnants of meals eaten long ago — capture a record of Aboriginal occupation that extends to around 29, years, confirming the location as one of the oldest sites along the km river to become the oldest River Murray Indigenous site in South Australia. In the first comprehensive survey of the region, one of the oldest Indigenous sites along Australia’s longest river system has been discovered. The results, published in Australian Archaeology , used radiocarbon dating methods to analyse river mussel shells from a midden site overlooking the Pike River floodplain downstream of Renmark.
More than 30 additional radiocarbon dates were collected in the region, spanning the period from 15, years ago to the recent present. Together, the results relate Aboriginal people to an ever-changing river landscape, and provide deeper insights into how they responded to these challenges. The period represented by the radiocarbon results brackets the Last Glacial Maximum commonly known as the last Ice Age when climatic conditions were colder and drier and when the arid zone extended over much of the Murray-Darling Basin.
Download Citation | Dating the occupation of Cerro Arena: A defensive Salinar-phase settlement in the Moche Valley, Peru | The.
A team led by Newcastle University, UK, used analysis of ancient coprolites—fossilized excrement—to identify that samples from one of the most famous “pre-Clovis” sites at Paisley Caves, in Oregon, north America, contained human fecal biomarkers. Their results mean that archeologists are able to confirm that the earliest known humans in the Americas were from a pre-Clovis culture, dating back more than 12, years. For most of the 20th century it was thought that the earliest inhabitants in the Americas belonged to a single group known as “Clovis,” who left distinctive large stone tools in the archeological record.
While it is now largely accepted that there were several groups present on the continent before the Clovis culture, the dating of these “pre-Clovis” sites has been difficult as the stone tools are not often found with material that can be radiocarbon dated. Although previous radiocarbon dating of the coprolites found at Paisley Caves showed that people lived there 12, years before the present, and used stone tools that were very different to the Clovis culture, there has remained much debate about DNA data from these coprolites.
Ancient DNA, especially from humans, has become a popular technique to look at early populations.
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Dating human occupation on diatom-phytolith-rich sediment: Case studies of mustang spring and Lubbock Lake, Texas, USA. Christine Hatté, Gregory Hodgins.
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