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"Ferguson, Jeffrey R."
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Long-distance stone transport and pigment use in the earliest Middle Stone Age
The Olorgesailie basin in the southern Kenya rift valley contains sediments dating back to 1.2 million years ago, preserving a long archaeological record of human activity and environmental conditions. Three papers present the oldest East African evidence of the Middle Stone Age (MSA) and elucidate the system of technology and behavior associated with the origin of Homo sapiens . Potts et al. present evidence for the demise of Acheulean technology that preceded the MSA and describe variations in late Acheulean hominin behavior that anticipate MSA characteristics. The transition to the MSA was accompanied by turnover of large mammals and large-scale landscape change. Brooks et al. establish that ∼320,000 to 305,000 years ago, the populations in eastern Africa underwent a technological shift upon procurement of distantly sourced obsidian for toolmaking, indicating the early development of social exchange. Deino et al. provide the chronological underpinning for these discoveries. Science , this issue p. 86 , p. 90 , p. 95 Social, technological, and subsistence behaviors and pigment use emerged during human evolution more than 300,000 years ago. Previous research suggests that the complex symbolic, technological, and socioeconomic behaviors that typify Homo sapiens had roots in the middle Pleistocene <200,000 years ago, but data bearing on human behavioral origins are limited. We present a series of excavated Middle Stone Age sites from the Olorgesailie basin, southern Kenya, dating from ≥295,000 to ~320,000 years ago by argon-40/argon-39 and uranium-series methods. Hominins at these sites made prepared cores and points, exploited iron-rich rocks to obtain red pigment, and procured stone tool materials from ≥25- to 50-kilometer distances. Associated fauna suggests a broad resource strategy that included large and small prey. These practices imply notable changes in how individuals and groups related to the landscape and to one another and provide documentation relevant to human social and cognitive evolution.
Journal Article
Late Pleistocene pottery production and exchange: Provenance studies of hunter-gatherer wares from southern Kyushu, Japan by neutron activation analysis
Late Pleistocene hunter-gatherers in East Asia adopted pottery, yet the ability to reconstruct circulation, mobility, and exchange has been hampered, in part, due to problematic regional geochronology. The driving forces behind pottery adoption is unclear. The purpose of this study is to test our results of the first systematic petrographic pottery sourcing from the pre-Younger Dryas by utilizing neutron activation analysis. We examine samples from the Sankauyama I site on Tanegashima Island, southern Japan, dating to the Incipient Jomon, ca. 14,000/13,500–12,800 cal BP, with a well-defined geochronology. Our NAA results corroborate with the petrographic study suggesting that pottery was mainly produced in-situ, but some vessels were transported long distances from another island. Changing from high mobility, sedentary Incipient Jomon foragers made pottery, occasionally investing in long-distance ceramic vessel transportation and exchange likely involving ocean crossing. This may be associated with a risk-buffering strategy in the context of rising sea levels and isolation of Tanegashima.
Journal Article
Predicting the geographic distribution of ancient Amazonian archaeological sites with machine learning
Amazonia has as least two major centers of ancient human social complexity, but the full geographic extents of these centers remain uncertain. Across the southern rim of Amazonia, over 1,000 earthwork sites comprised of fortified settlements, mound villages, and ditched enclosures with geometric designs known as geoglyphs have been discovered. Qualitatively distinct and densely located along the lower stretches of major river systems and the Atlantic coast are Amazonian Dark Earth sites (ADEs) with deep anthropogenic soils enriched by long-term human habitation. Models predicting the geographic extents of earthworks and ADEs can assist in their discovery and preservation and help answer questions about the full degree of indigenous landscape modifications across Amazonia. We classify earthworks versus ADEs versus other non-earthwork/non-ADE archaeological sites with multi-class machine learning algorithms using soils, climate, and distances to rivers of different types and sizes as geospatial predictors. Model testing is done with spatial cross-validation, and the best model at the optimal spatial scale of 1 km has an Area Under the Curve of 0.91. Our predictive model has led to the discovery of 13 new geoglyphs, and it pinpoints specific areas with high probabilities of undiscovered archaeological sites that are currently hidden by rainforests. The limited, albeit impressive, predicted extents of earthworks and ADEs means that other non-ADE/non-earthwork sites are expected to predominate most of Western and Northern Amazonia.
Journal Article
The When, Where, and How of Novices in Craft Production
Archaeologists frequently underestimate the importance of children as well as craft skill acquisition in the formation of archaeological assemblages. Perhaps even more often they conflate the terms \"novice\" and \"child\" in ways that oversimplify the factors that are involved in incorporating new producers into craft production. In particular, the skill acquisition involved in stone tool production is influenced by a variety of factors, including danger, raw material value, raw material availability, and raw material recyclability, as well as a variety of social factors. This paper examines the influence of each of these factors and also suggests patterns useful in recognizing and distinguishing between novices and children in the archaeological record.
Journal Article
Designing Experimental Research in Archaeology
Designing Experimental Research in Archaeology is a guide for the design of archaeological experiments for both students and scholars. Experimental archaeology provides a unique opportunity to corroborate conclusions with multiple trials of repeatable experiments and can provide data otherwise unavailable to archaeologists without damaging sites, remains, or artifacts. Each chapter addresses a particular classification of material culture-ceramics, stone tools, perishable materials, composite hunting technology, butchering practices and bone tools, and experimental zooarchaeology-detailing issues that must be considered in the development of experimental archaeology projects and discussing potential pitfalls. The experiments follow coherent and consistent research designs and procedures and are placed in a theoretical context, and contributors outline methods that will serve as a guide in future experiments. This degree of standardization is uncommon in traditional archaeological research but is essential to experimental archaeology. The field has long been in need of a guide that focuses on methodology and design. This book fills that need not only for undergraduate and graduate students but for any archaeologist looking to begin an experimental research project.
eBook
Tasks, Knowledge, and Practice: Long-Distance Resource Acquisition at Goat Spring Pueblo (LA285), Central New Mexico
We examine provenance data collected from three types of geological resources recovered at Goat Spring Pueblo in central New Mexico. Our goal is to move beyond simply documenting patterns in compositional data; rather, we develop a narrative that explores how people's knowledge and preferences resulted in culturally and materially determined choices as revealed in those patterns. Our analyses provide evidence that residents of Goat Spring Pueblo did not rely primarily on local geological sources for the creation of their glaze paints or obsidian tools. They did, however, utilize a locally available blue-green mineral for creation of their ornaments. We argue that village artisans structured their use of raw materials at least in part according to multiple craft-specific and community-centered ethnomineralogies that likely constituted the sources of these materials as historically or cosmologically meaningful places through their persistent use. Consequently, the surviving material culture at Goat Spring Pueblo reflects day-to-day beliefs, practices, and social relationships that connected this village to a broader mosaic of interconnected Ancestral Pueblo taskscapes and knowledgescapes.
Journal Article
Turkey domestication and provisioning in the Mesa Verde Region (US Southwest), Pueblo I to Pueblo III (725–1280 CE): C, Sr, and O isotope analyses
From the Pueblo I to the Late Pueblo III periods (725–1280 CE), in the Mesa Verde and McElmo Dome regions of the American Southwest, turkey use continuously increased, then declined during the final period of widespread residential occupation in the region. Increasing aridity in the Late PIII period may have limited agricultural productivity, and consequently, the ability to provision turkeys. In this paper, we use C, Sr, and O isotope analyses of turkey bone (
n
= 95) from archaeological contexts to investigate whether the turkey diets and the locations where they were raised changed over time as a consequence of demographic and social changes in the region. Our results show that almost all turkeys were raised by Puebloan maize farmers in or in the vicinity of the McElmo Dome region and fed a C
4
-based diet, presumably dominated by maize, during the whole period under study. However, it seems that they were fed less maize during the late thirteenth century. Perhaps facing lower yield harvests, maize was prioritized for human consumption, which resulted in less intensified turkey production efforts and reduced investment in maize-provisioned flocks. Our results also attest to the occasional use of local (likely wild) turkeys not provisioned with maize, and one wild turkey brought in from a more distant area.
Journal Article
Use of the Little-Known Local Obsidian Source of Ojo Zarco at La Magdalena in Guanajuato, Mexico
Excavations conducted by Beloit College in 1958 and 1960 identified the site of La Magdalena in the Bajío of Mexico. Investigators have since highlighted three primary phases of occupation at La Magdalena, two of which were proposed to have been culturally influenced by Teotihuacan or Tula. Modern research in the Bajío mostly diverges from those postulations of distant connections, supplanting them with local patterns that hold much more explanatory power. Archaeometric studies are pivotal in this regard but have thus far been infrequently used. This research analyzes the obsidian assemblage from La Magdalena and finds a nearly ubiquitous utilization of a local obsidian source known as Ojo Zarco. These findings merit a reevaluation of obsidian in the eastern Bajío and argue for more archaeometric studies that elucidate local procurement patterns.
Journal Article
Local Production and Developing Core Regions: Ceramic Characterization in the Lake Pátzcuaro Basin, Western Mexico
A core region is the first place for expected shifts in archaeological materials before, during, and after political changes like state emergence and imperial consolidation. Yet, studies of ceramic production have shown that there are sometimes limited or more subtle changes in the ceramic economy throughout such political fluctuations. This article synthesizes recent efforts to address political economic changes via geochemical characterization (neutron activation analysis; NAA) in the Lake Pátzcuaro Basin in western Mexico. This region was home to the Purépecha state and then empire (Tarascan; ca. AD 1350–1530), one of the most powerful kingdoms in the Americas before European arrival. The combined ceramic dataset from four sites in the region result in eight geochemical groups. Our analysis indicates that the region experienced long-term and relatively stable ceramic production that was not substantially altered by the emergence of the state and empire. In addition, we find evidence for (1) dispersed, localized production; (2) long-lived compositional ceramic recipes; and (3) a complex ceramic economy with differential community participation. We discuss why documenting local ceramic production and craft production more generally is important for the study of past political economies.
Journal Article