Managing the risk of climatic variability in late prehistoric northern Chile

The concept of risk management encompasses the diverse strategies employed in preventing and mitigating losses associated with social and environmental calamities. Building on the growing literature on risk, we use archaeological data from the Tarapacá Valley, located in northern Chile, to document the risk-reduction tactics mobilized by the valley’s inhabitants to navigate the increasingly volatile environmental and social conditions of the Late Intermediate Period (AD 1000–1450). With the onset of exceptionally unpredictable environmental conditions after AD 1100, residents of the Tarapacá Valley chose strategies such as increased trade and agricultural diversification and extensification to minimize shortages in staple resources. Threats of raiding and intra-community strife exacerbated the risks associated with subsistence shortfalls. Valley communities elected a number of strategies to curtail conflict-induced risk, including movement of settlements and field systems to defensible locations, construction of walls and other defensive features, and the introduction of plazas. Rock art data suggest that trade was increasingly embedded in ritually sanctioned events involving groups from different ecological zones. While studies of risk have focused disproportionately on environmental hazards, subsistence-related crises are often compounded by social hazards that require their own risk-mitigating strategies, further constraining options for coping with subsistence stress.     

The prehistory of northern Chile: A synthesis

Northern Chile, part of the south central Andes, consists of two main ecological subareas: extreme northern Chile, including the western valleys, and the Atacama Desert and oases. Different ecological conditions obtain in each subarea: puna, altiplano, and precordillera in the highlands; valleys, the desert, and oases in the intermediate zone; and coastal environments along the Pacific shores. In prehistoric times, all these environments were very interconnected. There are three different cultural traditions in the local prehistory: the early hunting and gathering tradition (10,000–4000 B.P.), the Chinchorro Tradition (7500–2500 B.P.), and the Altiplano or Andean Tradition (3000–0 B.P.). This proposed sequence is described, with emphasis on the early Chinchorro adaptations, including the important patterns of mummification, and its possible relation to tropical forest groups of the Amazon basin; and the Pre-Tiwanaku and later Tiwanaku and Inca developments, in relation to the circum-Titicaca region. The data presented in the paper are further developed to explore ideas and hypotheses for future research.     

Silver lining: evidence for Inka silver refining in northern Chile

Prehistoric silver purification using lead cupellation has been documented in multiple places throughout the Andes, but direct evidence of the Inka use of this technology has remained elusive. In this study, we use X-ray fluorescence, scanning electron microscopy, and electron-microprobe analysis to document direct evidence of Inka period (AD 1400–1532) silver purification using lead cupellation in the Tarapacá Valley of northern Chile. Local metalworkers used wind-driven huayra furnaces to produce pure lead metal, sustaining temperatures of ca. 900–1100 °C to smelt lead-bearing ores that may have included galena. The lead metal was then used in open-vessel cupellation of silver-bearing ores, some of which may have been cupriferous and derived from the nearby Inka mines at Huantajaya. Phase analyses of the slagged interiors of bowl-shaped ceramic vessels used for cupellation indicate that the metalworkers maintained the oxidizing environment and temperatures between 800 and 1100 °C requisite for cupellation. We argue that the Inka introduced this technique to Tarapacá metalworkers. The absence of finished silver artifacts in local valley contexts suggests that the refined silver was removed from the valley for use elsewhere in the empire.     

Strategies in northern development in Canada since the late 1960's

From the late 1960's onwards the northern part of North America has undergone the most significant social, political and economic transformation in its history.

This paper will look at some of the main reference points in the political economy of northern Canada, and will overlay this with a review of the evolution of key development strategies, policy statements, and mega‐project impact assessments that have happened during the past two decades.

Significant shifts in northern development perspectives have occured throughout this period; these will be analyzed and some important future trends and issues will be discussed.     

Knowledge production and border nationalism in northern Mexico

ABSTRACT. This article examines the transformations in the cultural sphere of Tijuana, one of Mexico's largest and fastest growing cities, in order to emphasise the border as a crucial site of nation‐building in northern Mexico. I propose that cultural and intellectual actors, through particular sites, are changing the way the city is positioned in relation to the national political space of Mexico. Two institutions are considered specifically, both of which are integral to the propagation of an array of representations of Tijuana. In looking to articulations of nationhood and practices of knowledge production, this article delineates how urban identities reclaim and reconfigure key aspects of national identity in a region heretofore unrecognised as central to the creation of a national imaginary.     

Trees and shrubs: the use of wood in prehispanic Teotihuacan

Charcoal recovered from different archaeological excavations carried out in the Teotihuacan Valley, México was used to evaluate whether significant changes in the use of wood took place through time (approx. 400 B.C.–A.D. 1500). Sixteen taxa of trees and shrubs characteristic of the Basin of Mexico were identified (including Pinus, Quercus, Arbutus, Cupressaceae, Alnus, Prunus, Taxodium, Salix, Baccharis and Buddleia, among others). Variations in the proportions of taxa are interpreted as a reflection of the intensity of use rather than an indicator of deforestation. The analysis of the data shows a pattern of continuity in the utilization of taxa throughout the occupation. This includes the use of different vegetative parts (trunk and branches), genera and species with different life forms (trees, shrubs, herbaceous plants) and primary (Pinus and Quercus) as well as secondary taxa (Prunus and Arbutus). We propose that the inhabitants of the Teotihuacan Valley implemented practices to manage vegetation in order to assure resource availability in the region.     

Earthenware production and distribution in the prehispanic Philippine polity of Tanjay: results from laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS)

This paper presents the results of laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) analysis of low-fired earthenware from the prehispanic trading polity of Tanjay (c. A.D. 500–1600) in the central Philippines. The goal of this project was to determine whether or not the compositional analysis of ceramics could be used to examine the organization of pottery production and exchange relationships in the Bais-Tanjay region of Negros Island. Results indicate that at least five distinct groups of ceramics can be differentiated based on elemental compositions and that pottery production was both a part-time, dispersed endeavor and a full-time, likely centralized, craft. In addition, a number of compositional outliers in the ceramic dataset suggest that interregional trade took place, with pottery made outside the Bais-Tanjay region being imported, especially by upland swidden farmers.     

Dietary patterns during the early prehispanic settlement in La Gomera (Canary Islands)

The dietary pattern of 10 adults interred in the Acceso al Pescante de Vallehermoso cave (La Gomera, Canary Islands), dated from 1600 to 1800 years BP, has been investigated using carbon and nitrogen stable isotope signatures, bone barium and strontium levels, and dental and oral pathologies. In addition, trabecular bone mass – as a parameter useful to evaluate overall nutrition – was also determined.     

An investigation into the practice of cranial deformation among the Pre-Columbian peoples of northern Chile

An investigation was carried out into the practice of artificial cranial deformation (ACD) among the Pre-Columbian inhabitants of northern Chile. Four hundred and fifteen skulls, representing a period of 7000 years, were examined of which 88.9 per cent were deformed. The practice was carried out equally between men and women. The techniques used in head deforming varied over time among the different cultural groups that inhabited the region. By analysis of the methods used in ACD, it can be demonstrated that head deforming may yield information significant to the study of the political and cultural changes that occurred throughout the prehistory of the region. As a form of stylistic behaviour, which may be viewed as a strategy of information exchange, ACD was found to be a significant cultural artifact that may serve to mark territory or social boundaries, reaffirm ethnicity, and maintain and strengthen exchange networks. Certain pathological consequences were found to be the result of ACD, including an increase in the prevalence of wormian bones, occipital bone necrosis, and an abnormal closing pattern of the cranial sutures. No evidence was found that ACD is associated with a deviated nasal septum or osteomas of the external auditory canal.     

The origin of black pigmentation in a sample of Mexican prehispanic human bones

The study of black patches and spots in prehispanic bones of Tlatelolco and Tlapacoya is presented. The chosen characterization techniques, X-ray Fluorescence, X-ray Diffraction, Scanning Electron Microscopy, Energy Dispersive X-ray Spectroscopy, Infrared Spectroscopy and Gas Chromatography are complementary and they all conclude that the bone black pigment is constituted, mainly, by amorphous carbon and some mineral inclusions. Gas Chromatography and Infrared Spectroscopy show that the pigment is constituted by organic compounds as aromatic hydrocarbons, mainly bitumen. An explanation on how the spots were formed is proposed.     

Identifying the sources of Inka period ceramics from northern Chile: results of a neutron activation study

To examine regional patterns of ceramic production and distribution during the era of Inka domination in northern Chile, we determined the elemental compositions of 157 samples of archaeological ceramics and geological clays from the sites of Catarpe and Turi using instrumental neutron activation analysis. We identified two major and three minor composition groups in the ceramics. The major groups, High Cr and Low Cr, are linked to clays from two broad geological contexts within the region, while the minor Low Na group is made up of ceramics imported from northwestern Argentina. The distribution of the composition groups indicates that, in the Catarpe–Turi region, patterns of ceramic production differed for different vessel types: jars were made from clay and temper acquired near the sites where the jars were used, while bowls were made of material coming from more distant sources. The geographical distribution of the analyzed ceramics indicates that bowls were exchanged between Catarpe and Turi in a pattern more similar to tribute/extraction than to market exchange, with Catarpe being the dominant site. The compositional analysis also demonstrates that Inka-style ceramics were being locally produced at sites in this region during the era of Inka domination.     

New and past geochemical data on fresh to brine waters of the Salar de Atacama and Andean Altiplano,northern Chile

The paper deals with the major chemistry and stable isotopes (hydrogen, oxygen, carbon, sulfur, strontium) of waters and solutes from the Salar de Atacama basin (Rio Pedro, Honar Creek and Laguna Chaxa) and Andean Altiplano (Laguna Miñique and Laguna Miscanti). The water inflows of the Salar are chemically quite different, the Rio San Pedro being of Na‐Cl type and the Honar Creek of Na‐HCO₃ type, in keeping with the sedimentary‐evaporitic and volcanic nature of the catchment rocks respectively. The δ³⁴S and δ¹⁸O values of sulfate and the ⁸⁷Sr/⁸⁶Sr ratio of strontium in the streams match those of drained rocks, whereas the δ¹³C values of dissolved carbonate are largely controlled by vegetation. The lagoons are evaporated meteoric water bodies, and the relative air humidity estimated from the slope of the isotopic evaporation line is in accordance with historical data on air humidity in the area. The Laguna Chaxa is Na‐Cl rich, and its isotopic composition are consistent with a mixed sedimentary‐volcanic provenance of sulfur and strontium solutes. The Laguna Miñique is Na‐SO₄ rich, and its sulfate δ³⁴S is nearly identical to that of Laguna Chaxa. The δ¹³C(HCO₃) values are quite different in the Laguna Chaxa and Laguna Miñique, with the former being notably enriched in ¹³C probably because of preferential uptake of ¹²C by the high biological productivity occurring in the lagoon. The limited set of new data is interpreted in the context of a much larger literature database. In particular, previous chemical data on inflows and brines in the Salar de Atacama were revisited, and compared with evaporation path models and mineral stability diagrams (boron, lithium and Mg‐minerals) computed using updated software and thermodynamic databases. The modeling shows that the removal of boron and lithium from sulfate‐rich brines possibly occurs, respectively, as ulexite and sulfate salts, and carnallite should be the final magnesium phase of the brine evolution.     

The northern fluted point complex: technological and morphological evidence of adaptation and risk in the late Pleistocene-early Holocene Arctic

Analyses of fluted point technology and Paleoindian technological risk have contributed to our understanding of human adaptation across North America in the late Pleistocene and early Holocene. However, poor chronological control has dissuaded similar studies of fluted points found in Alaska and northern Yukon and our understanding of their adaptive role in early arctic adaptations remains unclear. Two new archeological sites have provided reliable radiocarbon data and for the first time, a comprehensive analysis of northern fluted points is possible. Here, technological and morphological analyses of northern fluted points are presented, including variables statistically evaluated and compared to a collection of fluted Folsom artifacts serving as a reference. Variation in tool shape was measured using geometric morphometrics, and a new approach to landmark placement designed to characterize basal morphology and allow the analysis to include tool fragments is presented. Results confirm that northern fluted points represent a cohesive technological strategy and are used to formulate hypotheses suggesting its service as a risk-management system promoting ease-of-replacement-after-failure to offset transport costs and reduce risk during long-distance travel.     

The composition of late Romano-British colourless vessel glass: glass production and consumption

One hundred and twenty-eight colourless glass tablewares from settlement contexts throughout the British Isles, dating from the mid-3rd to 4th century AD, were analysed by ICP-AES spectrometry. Three distinct compositional groups were identified based upon the use of different decolourisers and primary raw materials, with possible sub-groups within these. These compositions have distinct, but overlapping chronological ranges, suggesting colourless glass production in at least three, possibly more, centres in the late Roman period. The compositional analysis highlights the high degree to which recycling of glass was taking place during this late period. The chronological distribution of some of these compositions is more restricted within the British assemblages than is observed in other published assemblages from Western Europe. This distinction may indicate different supply patterns of glass to the Western provinces.     

试析东北地区北部与俄罗斯外贝加尔地区旧石器时代晚期文化之间的关系

一、引言人类在地球生物中是一个特殊的类群,其特殊性就在于他能制造和使用复杂的工具,具有特殊的生存方式.对古人类技术、行为和生存模式的研究是旧石器时代考古学的范畴.这一学科通过对埋藏于地下的古人类生产与生存活动所遗留下来的遗物、遗迹及其空间分布关系的发掘与研究,探讨人类对特定环境的适应方式、所占有的食物和生活资源的种类及获得的方法和途径,其活动区域的大小及其对土地的开发利用方式,以及与其它生物的相互依存关系1.     

Reconstructing the Politics of Indigenous Identity in Chile

Current research questions how archaeology has reconstructed social identities based on material culture and ethnic groups. Recently, some Native populations from the Tarapacá region, Northern Chile, have claimed their indigenous rights and recognition as Andean First Nations. Using existing laws and programs developed by the Chilean government, they have redefined themselves as organised local communities. Their claims question archaeological practice in the production and reproduction of scientific knowledge, and its social repercussions in the property of land, water and cultural heritage. Within the Latin American social context, archaeology sometimes has avoided playing a political role, consequently conceding certain histories above others. As a social science, the discipline needs to evaluate its impact on archaeologically based identities which are sometimes politically alienated, modified, and appropriated to create new representations of the past legitimised in present time. This paper furthers a discussion of the politics of identity by focusing on the Chilean Aymara case and the legitimacy of its appropriation strategies.     

Reception and Contingency in Recent Art from Chile

The re-edition of the book Margins and Institutions by Nelly Richard, a landmark in the study of Chilean art produced during the dictatorship of General Pinochet, reminds of how the original publication contributed to shape a particular reception of these ephemeral works that almost nobody witnessed. The images of the book appear removed from time and space and do not give much information about their original situations, yet this article discusses how, paradoxically, this has enabled an intimate reception of those works: the personal memories of the audience filled in the gaps left by the book, as attested by an ethnographic research project carried out to explore the constructed nature of this response. These ideas are discussed in relation to the recent process of internationalization of Chilean art, highlighting the differences between the contemporary context and the former one, and the importance of paying attention to the late receptor of these pieces.