Tuesday, July 24, 2018

Archaeological finds at Sidon in Lebanon include the rare remains of a Canaanite child and its funerary jar,



Newly revealed archaeological finds at Sidon in Lebanon include the rare remains of a Canaanite child and its funerary jar, the British Museum excavation team revealed on Monday.




By the time of the Canaanites, burial in jars had been the local practice for thousands of years throughout the region. The burial jars archaeologists found in copper-age Sidon had all contained adults. However, the burial presented Monday was a child. 

The child was interred with a necklace around its neck, said the team, headed by Dr. Claude Doumet-Serhal. 

The fact of the child's burial, with a funerary vessel and jewelry, could be indicative of status, or of the value attributed to children. Prehistoric burials had been confined to adults, indicating that children were held to be of little importance.




Canaanite child's necklace from burial in Sidon Mahmoud Zayyat, AFP

Lebanon, like Israel, is on the Mediterranean Sea and is smack on the route – or at least one route - by which humans and their predecessors left Africa for the rest of the world. Throughout the region and in Sidon too, archaeologists have found stone axes, chisels, and bifacial tools from the Stone Age.

Neandertal fire-making technology inferred from microwear analysis


 
Fire use appears to have been relatively common among Neandertals in the Middle Palaeolithic. However, the means by which Neandertals procured their fire—either through the collection of natural fire, or by producing it themselves using tools—is still a matter of debate. We present here the first direct artefactual evidence for regular, systematic fire production by Neandertals. From archaeological layers attributed to late Mousterian industries at multiple sites throughout France, primarily to the Mousterian of Acheulean Tradition (MTA) technoculture (ca. 50,000 years BP), we identify using microwear analysis dozens of late Middle Palaeolithic bifacial tools that exhibit macroscopic and microscopic traces suggesting repeated percussion and/or forceful abrasion with a hard mineral material. Both the locations and nature of the polish and associated striations are comparable to those obtained experimentally by obliquely percussing fragments of pyrite (FeS2) against the flat/convex sides of a biface to make fire. The striations within these discrete use zones are always oriented roughly parallel to the longitudinal axis of the tool, allowing us to rule out taphonomic origins for these traces. We therefore suggest that the occasional use of bifaces as ‘strike-a-lights’ was a technocultural feature shared among the late Neandertals in France.

Introduction

Most people today are familiar with the concept of striking steel against flint to produce a shower of sparks that fall onto tinder, which begins to smoulder, and when placed into a bundle of dried grass, can be gently blown into flame. Prior to cigarette lighters and wooden matches, the flint-and-steel method was among the most common fire making systems in modern times, originating in the Iron Age1,2,3. Prior to their introduction to metal products by Western colonialists, numerous hunter-gatherer, pastoralist and horticulturalist societies employed the minerals pyrite or marcasite—two very similar species of iron disulphide (FeS2) that are virtually indistinguishable from one another in their nodular or crystal aggregate forms, referred to hereafter simply as pyrite—in place of steel for their fire making needs. Ethnographic accounts describe the flint-and-pyrite (and in some cases, pyrite-on-pyrite) fire making system being employed from Alaska and Canada to Tierra del Fuego in the Americas, and from Australia and Melanesia to Siberia, and only a few instances noted in Africa1,4,5. However, the earliest known instances of percussive fire making extend much deeper into the prehistoric past.
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  • Acknowledgements

    Funding was provided by the Netherlands Organisation for Scientific Research (Grant# PGW-13-42) and the Stichting Nederlands Museum voor Anthropologie en Praehistorie (SNMAP). Thanks to J. Airvaux, J. Jaubert, J.-J. Hublin, S. McPherron, E. Ihuel, D. Colonge, M. Brenet, J.-M. Geneste and A. Turq for providing access to the studied materials. Some of the bifaces used in the experiments were produced by D. Pomstra and B. Ginelli. Earlier versions of this article benefitted greatly from revisions provided by W. Roebroeks. A.C.S. and M.S. are grateful for the insightful discussions held with various members of the Leiden Human Origins Group and Material Culture Studies Group.

    Author information

    Affiliations

    1. Faculty of Archaeology, Leiden University, Leiden, The Netherlands

      • A. C. Sorensen
      •  & M. Soressi
    2. INRAP, GSO, Bègles, France

      • E. Claud
    3. UMR 5199 PACEA, Université de Bordeaux, Pessac, France

      • E. Claud

    Contributions

    A.C.S. conceived/designed the study in collaboration with M.S. and E.C., A.C.S. conceptualised and conducted the experiments, A.C.S. and E.C. analysed the results, M.S. provided and analysed archaeological materials, A.C.S. wrote the manuscript with input from E.C. and M.S., A.C.S. prepared the figures, tables and supplementary information, all photographs appearing in the article and the Supplementary Information were taken by A.C.S.

    Competing Interests

    The authors declare no competing interests.

    Corresponding author

    Correspondence to A. C. Sorensen.

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    Monday, July 23, 2018

    Gault site research pushes back date of earliest North Americans


    IMAGE
    IMAGE: Stone tool assemblage recovered from the Gault Site. view more 
    Credit: Credit: Produced by N Velchoff, The Gault School of Archaeological Research.

    For decades, researchers believed the Western Hemisphere was settled by humans roughly 13,500 years ago, a theory based largely upon the widespread distribution of Clovis artifacts dated to that time. Clovis artifacts are distinctive prehistoric stone tools so named because they were initially found near Clovis, New Mexico, in the 1920s but have since been identified throughout North and South America.

    In recent years, though, archaeological evidence has increasingly called into question the idea of "Clovis First." Now, a study published by a team including DRI's Kathleen Rodrigues, Ph.D. student, and Amanda Keen-Zebert, Ph.D., associate research professor, has dated a significant assemblage of stone artifacts to 16-20,000 years of age, pushing back the timeline of the first human inhabitants of North America before Clovis by at least 2,500 years.

    Significantly, this research identifies a previously unknown, early projectile point technology unrelated to Clovis, which suggests that Clovis technology spread across an already well-established, indigenous population.

    "These projectile points are unique. We haven't found anything else like them," said Tom Williams, Ph.D., Postdoctoral Research Associate in the Department of Anthropology at Texas State University and lead author of the study. "Combine that with the ages and the fact that it underlies a Clovis component, and the Gault site provides a fantastic opportunity to study the earliest human occupants in the Americas."

    The research team identified the artifacts at the Gault Site in Central Texas, an extensive archaeological site with evidence of continuous human occupation. The presence of Clovis technology at the site is well-documented, but excavations below the deposits containing Clovis artifacts revealed well-stratified sediments containing artifacts distinctly different from Clovis.

    To determine the ages of these artifacts, Rodrigues, Keen-Zebert, and colleagues used a process called optically simulated luminescence (OSL) dating to the ages of the surrounding sedimentary material. In OSL, researchers expose minerals that have long been buried under sediment layers to light or heat, which causes the minerals to release trapped potassium, uranium, and thorium electrons that have accumulated over time due to ambient, naturally occurring radiation. When the trapped electrons are released, they emit light which can be measured to determine the amount of time that has elapsed since the materials were last exposed to heat or sunlight.

    "The fluvial nature of the sediments deposited at the Gault Site have created a poor environment for preservation of organic materials, so radiocarbon dating has not been a useful technique to apply in this region," said Kathleen Rodrigues, graduate research assistant in DRI's Division of Earth and Ecosystem Sciences. "This made luminescence dating a natural choice for dating the archaeological materials here. We are really pleased with the quality of the results that we have achieved."

    Archaeologists identify ancient North American mounds using new image analysis technique


    Researchers at Binghamton University, State University at New York have used a new image-based analysis technique to identify once-hidden North American mounds, which could reveal valuable information about pre-contact Native Americans.

    "Across the East Coast of the United States, some of the most visible forms for pre-contact Native American material culture can be found in the form of large earthen and shell mounds," said Binghamton University anthropologist Carl Lipo. "Mounds and shell rings contain valuable information about the way in which past people lived in North America. As habitation sites, they can show us the kinds of foods that were eaten, the way in which the community lived, and how the community interacted with neighbors and their local environments.

    In areas that are deeply wooded or consist of bayous and swamps, there exist mounds that have eluded more than 150 years of archaeological survey and research. Due to vegetation, these kinds of environments make seeing more than a couple of dozen feet difficult, and even large mounds can be hidden from view, even when one systematically walks on the terrain.

    The use of satellites and new kinds of aerial sensors such as LiDAR (light detection and ranging) have transformed the way archaeologists can gather data about the archaeological record, said Lipo.

    Now scientists can study landscapes from images and peer through the forest canopy to look at the ground. LiDAR has been particularly effective at showing the characteristic rises in topography that mark the presence of mounds. The challenge to archaeologists, however, is to manage such a vast array of new data that are available for study. Object based image analysis (OBIA) allows archaeologists to configure a program to automatically detect features of interest. OBIA is a computer-based approach to use data from satellite images and aerial sensors to look for shapes and combinations of features that match objects of interest. Unlike traditional satellite image analyses that looks at combinations of light wavelengths, OBIA adds characteristics of shape to the search algorithm, allowing archaeologists to more easily distinguish cultural from natural phenomena.

    Lipo's team systematically identified over 160 previously undetected mound features using LiDAR data from Beaufort County, S.C., and an OBIA approach. The result improves the overall knowledge of settlement patterns by providing systematic knowledge about past landscapes, said Lipo.

    "Through the use of OBIA, archaeologists can now repeatedly generate data about the archaeological record and find historic and pre-contact sites over massive areas that would be cost-prohibitive using pedestrian survey. We can now also peer beneath the dense canopy of trees to see things that are otherwise obscured. In areas like coast South Carolina, with large swaths of shallow bays, inlets and bayous that are covered in forest, OBIA offers us our first look at this hidden landscape."

    Having demonstrated the effectiveness for using OBIA in conditions of dense vegetation and after optimizing our processing, Lipo and his team are expanding their efforts to include much-larger areas.

    "Fortunately, satellite and LiDAR data are now available for much of the eastern seaboard, so undertaking a large-scale project is now a task that is achievable," said Lipo. "Due to climate change and sea-level rise, many major mounds and middens on the East Coast are threatened by erosion and inundation. It is urgent we document this pre-contact landscape as soon as possible, in order to learn as much as we can about the past before it is gone forever."

    Wednesday, July 18, 2018

    Old Theban port of Chalcis: A medieval maritime crossroads in Greece



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    IMAGE: Medieval ceramic article from Chalcis typical of main Middle Byzantine Production (MBP), in the collection of the Musée National de Céramique and the Manufacture de Sèvres (Cité de la Céramique).... view more 
    Credit: S. Y. Waksman
    In the 12th century, the Byzantine Empire was flourishing and the city of Thebes--between Corinth and Athens--was a bustling center of commercial and cultural exchange. Its outlet to the sea was the port of Chalcis, part of a vast maritime trade network. In addition to agricultural products and silk, ceramic tableware was shipped from Chalcis throughout the Mediterranean. Most of this tableware has been assigned to the main Middle Byzantine Production (MBP) ceramic type.
    The research team examined one lot of MBP ceramics salvaged from a wreck discovered by the island of Kavalliani, near Chalcis, in the Southern Euboean Gulf. Analyses performed at the Archéologie et Archéométrie research unit revealed their chemical composition, which the scientists then compared with that of ceramics known to have been produced at Chalcis. The chemical profiles were a match, leading them to conclude that MBP ceramics were indeed manufactured in Chalcis. This was followed up with a study of pieces from the collections of the Cité de la Céramique in Sèvres, in collaboration with the Centre de Recherche et de Restauration des Musées de France (French Ministry of Culture).
    These findings provide a new perspective on medieval Mediterranean trade and reveal that Chalcis was an epicenter of maritime commerce, exporting goods across a vast territory. They also pinpoint the place of manufacture of a large number of Byzantine ceramics currently on display in museums around the world.

    Monday, July 16, 2018

    Archaeologists discover bread that predates agriculture by 4,000 years


    At an archaeological site in northeastern Jordan, researchers have discovered the charred remains of a flatbread baked by hunter-gatherers 14,400 years ago. It is the oldest direct evidence of bread found to date, predating the advent of agriculture by at least 4,000 years. The findings suggest that bread production based on wild cereals may have encouraged hunter-gatherers to cultivate cereals, and thus contributed to the agricultural revolution in the Neolithic period.

    A team of researchers from the University of Copenhagen, University College London and University of Cambridge have analysed charred food remains from a 14,400-year-old Natufian hunter-gatherer site - a site known as Shubayqa 1 located in the Black Desert in northeastern Jordan. The results, which are published today in the journal Proceedings of the National Academy of Sciences, provide the earliest empirical evidence for the production of bread:

    "The presence of hundreds of charred food remains in the fireplaces from Shubayqa 1 is an exceptional find, and it has given us the chance to characterize 14,000-year-old food practices. The 24 remains analysed in this study show that wild ancestors of domesticated cereals such as barley, einkorn, and oat had been ground, sieved and kneaded prior to cooking. The remains are very similar to unleavened flatbreads identified at several Neolithic and Roman sites in Europe and Turkey. So we now know that bread-like products were produced long before the development of farming. The next step is to evaluate if the production and consumption of bread influenced the emergence of plant cultivation and domestication at all," said University of Copenhagen archaeobotanist Amaia Arranz Otaegui, who is the first author of the study.

    University of Copenhagen archaeologist Tobias Richter, who led the excavations at Shubayqa 1 in Jordan, explained:
    "Natufian hunter-gatherers are of particular interest to us because they lived through a transitional period when people became more sedentary and their diet began to change. Flint sickle blades as well as ground stone tools found at Natufian sites in the Levant have long led archaeologists to suspect that people had begun to exploit plants in a different and perhaps more effective way. But the flat bread found at Shubayqa 1 is the earliest evidence of bread making recovered so far, and it shows that baking was invented before we had plant cultivation. So this evidence confirms some of our ideas. Indeed, it may be that the early and extremely time-consuming production of bread based on wild cereals may have been one of the key driving forces behind the later agricultural revolution where wild cereals were cultivated to provide more convenient sources of food."
    Charred remains under the microscope
    The charred food remains were analysed with electronic microscopy at a University College London lab by PhD candidate Lara Gonzalez Carratero (UCL Institute of Archaeology), who is an expert on prehistoric bread:
    "The identification of 'bread' or other cereal-based products in archaeology is not straightforward. There has been a tendency to simplify classification without really testing it against an identification criteria. We have established a new set of criteria to identify flat bread, dough and porridge like products in the archaeological record. Using Scanning Electron Microscopy we identified the microstructures and particles of each charred food remain," said Gonzalez Carratero.
    "Bread involves labour intensive processing which includes dehusking, grinding of cereals and kneading and baking. That it was produced before farming methods suggests it was seen as special, and the desire to make more of this special food probably contributed to the decision to begin to cultivate cereals. All of this relies on new methodological developments that allow us to identify the remains of bread from very small charred fragments using high magnification," said Professor Dorian Fuller (UCL Institute of Archaeology).
    Research into prehistoric food practices continues
    A grant recently awarded to the University of Copenhagen team will ensure that research into food making during the transition to the Neolithic will continue:
    "The Danish Council for Independent Research has recently approved further funding for our work, which will allow us to investigate how people consumed different plants and animals in greater detail. Building on our research into early bread, this will in the future give us a better idea why certain ingredients were favoured over others and were eventually selected for cultivation," said Tobias Richter.

    The origins of pottery linked with intensified fishing in the post-glacial period


    IMAGE
    IMAGE: This is incipient J?mon pottery from Hanamiyama site, Yokohama-shi, Kanagawa Prefecture, Japan. view more 
    Credit: Nara National Research Institute for Cultural Properties
    A study into some of the earliest known pottery remains has suggested that the rise of ceramic production was closely linked with intensified fishing at the end of the last Ice Age.
    Scientists examined 800 pottery vessels in one of the largest studies ever undertaken, focussing mainly on Japan- a country recognised as being one of the earliest centres for ceramic innovation.
    A three year study led by researchers at BioArCh, the University of York, concluded that the ceramic vessels were used by our hunter-gatherer ancestors to store and process fish, initially salmon, but then a wider range including shellfish, freshwater and marine fish and mammals as fishing intensified.
    Scientists say this association with fish remained stable even after the onset of climate warming, including in more southerly areas, where expanding forests provided new opportunities for hunting game and gathering plants.
    The research team were able to determine the use of a range of ceramic vessels through chemical analysis of organic food compounds that remained trapped in the pots despite ca. 10,000 years of burial.
    The samples analysed are some of the earliest found and date from the end of the Late Pleistocene - a time when our ancestors were living in glacial conditions - to the post-glacial period when the climate warmed close to its current temperature and when pottery began to be produced in much greater quantity.
    The study has shed new light on how prehistoric hunter-gatherers processed and consumed foods over this period - until now virtually nothing was known of how or for what early pots were used.
    As part of the study, researchers recovered diagnostic lipids from the charred surface deposits of the pottery with most of the compounds deriving from the processing of freshwater or marine organisms.
    Lead author, Dr Alex Lucquin, from BioArCh, Department of Archaeology, University of York, said: "Thanks to the exceptional preservation of traces of animal fat, we now know that pottery changed from a rare and special object to an every-day tool for preparing fish.
    "I think that our study not only reveals the subsistence of the ancient Jomon people of Japan but also its resilience to a dramatic change in climate.
    Professor Oliver Craig, from the Department of Archaeology and Director of the BioArCh research centre at York, who led the study, said: "Our results demonstrate that pottery had a strong association with the processing of fish, irrespective of the ecological setting.
    "Contrary to expectations, this association remained stable even after the onset of warming, including in more southerly areas, where expanding forests provided new opportunities for hunting and gathering.
    "The results indicate that a broad array of fish was processed in the pottery after the end of the last Ice Age, corresponding to a period when hunter-gatherers began to settle in one place for longer periods and develop more intensive fishing strategies"
    "We suggest this marks a significant change in the role of pottery of hunter-gatherers, corresponding massively increased volume of production, greater variation in forms and sizes and the onset of shellfish exploitation."
    Dr Simon Kaner, from the University of East Anglia, who was involved in the study, added: "The research highlights the benefits of this kind of international collaboration for unlocking some of the big questions about the human past, and the potential of engaging with established research networks as created by the Sainsbury Institute over the years."
    The findings are published in Proceedings of the National Academy of Sciences and the study was funded by the AHRC. It was an international collaboration including researchers in Japan, Sweden and the Netherlands.