Photo Essay: The Rio Grande Borderland

The Rio Grande border of the United States and Mexico is over 1,000 miles long. This presentation of that border is by means of a photo essay interpreting the physical, economic, political, and cultural complex that has evolved. These photos were all taken in 1990 on a reconnaissance that followed both sides of the border for the entire distance from Ciudad Juarez and El Paso on the west to the Gulf of Mexico on the east. Numerous crossings of the border were made at official and non-official points. Informal field interviews were conducted on both sides of the border with government officials, agricultural workers, tourists, farmers, industrial managers, factory laborers, retirees, undocumented migrants, beachcombers, shoe-shiners in the plaza, sportsmen, clergymen, children, and loafers. The photos with an accompanying text are presented in an order that is conducive to a comprehension of the salient aspects of the physical and human geography and the complex social issues found in the borderland. The final photos and text are on the maquiladoras and the international interplay of history, markets, labor, and technology resulting in striking structural change.     

National and regional identities in Brazil: Rio Grande do Sul and its peculiarities

ABSTRACT. From the 1930s, Brazil experienced a growing national centralisation and the construction of Brasilidade (Brazilianness). The military regime (1964–85) deepened centralisation and emphasised national identity, little space being left for regional identities. With the political opening and the redemocratisation of Brazil, starting at the end of the 1970s, the stress was on differences in a period in which Brazil had already achieved a high degree of integration. Identities were re‐created, among them that of Rio Grande do Sul, the southernmost state of Brazil, where a strong revival of gaúcho culture took place. The 1980s and 1990s were marked by a growing development of activities and disputes linked to the gaúcho tradition. In spite of the fact that Rio Grande do Sul is predominantly urban and industrialised, this process reached out to the state's rural past and the equestrian figure of the gaúcho.     

Uniform Probability Density Analysis and Population History in the Northern Rio Grande

One of the basic challenges facing archaeology is translating surface evidence into population estimates with sufficient chronological resolution for demographic analysis. The problem is especially acute when one is working with sites inhabited across multiple chronological periods and the production curves for pottery types are unknown. In this paper, I present a Bayesian statistical method which I call uniform probability density analysis that is tailored to this situation. This method combines uniform distributions derived from the local pottery chronology with pottery assemblage data to reconstruct the population history of individual settlements. I also illustrate applications of this method at the site and regional level using data from Cuyamungue and the surrounding Tewa Basin/VEP II New Mexico project area. The results allow one to identify a period of significant population movement corresponding to the period of Tewa ethnogenesis in the thirteenth century CE.     

Colonialism, Material Culture, and Identity in the Rio Grande and Hudson River Valleys

A comparison of two seventeenth-century colonial encounters in North America, examining the Pueblo–Spanish interaction in New Mexico and the Mohawk–Dutch situation in New York. I focus on material culture flows, the role of women, forms of labor that were extracted in each setting and how each of these contributed to power relations and identity construction.

Factors Controlling Pre-Columbian and Early Historic Maize Productivity in the American Southwest,Part 1: The Southern Colorado Plateau and Rio Grande Regions

Maize is the New World’s preeminent grain crop and it provided the economic basis for human culture in many regions within the Americas. To flourish, maize needs water, sunlight (heat), and nutrients (e.g., nitrogen). In this paper, climate and soil chemistry data are used to evaluate the potential for dryland (rain-on-field) agriculture in the semiarid southeastern Colorado Plateau and Rio Grande regions. Processes that impact maize agriculture such as nitrogen mineralization, infiltration of precipitation, bare soil evaporation, and transpiration are discussed and evaluated. Most of the study area, excepting high-elevation regions, receives sufficient solar radiation to grow maize. The salinities of subsurface soils in the central San Juan Basin are very high and their nitrogen concentrations are very low. In addition, soils of the central San Juan Basin are characterized by pH values that exceed 8.0, which limit the availability of both nitrogen and phosphorous. In general, the San Juan Basin, including Chaco Canyon, is the least promising part of the study area in terms of dryland farming. Calculations of field life, using values of organic nitrogen for the upper 50 cm of soil in the study area, indicate that most of the study area could not support a 10-bushel/acre crop of maize. The concepts, methods, and calculations used to quantify maize productivity in this study are applicable to maize cultivation in other environmental settings across the Americas.     

Calha Norte: Military Development in Brazilian Amazônia

Calha Norte is the most recent military project for the development of Brazilian Amazõnia. It aims to incorporate the whole of the region to the north of the Amazõn River into the national economy and to defend the area from guerrillas, drug traffickers and other perceived threats from neighbouring countries. It also seeks to integrate Indian groups into Brazilian society by means of a new Indian policy. This paper looks at the context of military development in Brazilian Amazônia and the origins and proposals of the Calha Norte project. It focuses on the state of Roraima, the impact of illegal gold miners and the treatment of the Yanomami Indians. While recognizing the long military involvement in Amazônia, the paper argues that the return to democracy in Brazil requires the military not only to consider the security and development of the region, as perceived by them, but to adopt a sensitive and more flexible range of policies.     

The Industrial Landscape of Rio Tinto,Huelva, Spain

Abstract

Rio Tinto has the largest deposits of pyrite and copper pyrite and associated minerals in Europe. It was exploited by the pre-Roman Iberians for silver and copper, and later by the Romans. The greatest change to the landscape came with open-pit mining or quarrying by the British Rio Tinto Company in the late nineteenth century and the first half of the twentieth century for pyrite for sulphur and copper. Even this will be obliterated by current mining projects — the Cerro Colorado project of 1973 was started by the Spanish successor company, Rio Tinto Minera (though still associated with the RTZ multi-national company), and more recently there has been an intensification of gold and silver extraction from the gossan which overlies the pyritic deposits. Damage to the industrial archaeology is also resulting from a large scale reclamation programme, and an attempt to develop a Museum Park on the site largely failed. This report briefly considers the remains at Rio Tinto, and includes photographs recording pre-1950 features of the mines.     

奥运里约 炫彩巴西

正7年前,伴随着国际奥委会主席罗格大声喊出"里约热内卢"的名字,2016年夏季奥运会最终花落巴西。今年的8月炎热依旧,但奥运圣火却在这个夏天点燃了别样的激情魅力。此项盛会不仅为里约成功吸引了世界的目光,同时也填补了奥运史上南美版图的空白,从而令这座桑巴之城更加熠熠生辉。     

Site Identification and Correlation Using Geoarchaeological Methods at the Cabeço do Porto Marinho (CPM) Locality, Rio Maior, Portugal

Several geoarchaeological techniques have been employed in evaluating an open-air site within a uniform sand matrix, near Rio Maior, Portugal. Electrical resistivity data, acquired at the Upper Palaeolithic site complex of Cabeço do Porto Marinho (CPM), delineated an important new occupational locus. This result was confirmed, first by auger testing which recovered subsurface artefacts, and then by direct excavation. In addition, 107 samples were recovered at the site for magnetic susceptibility measurements. Comparisons between magnetic susceptibility profiles from two loci, including the new area at CPM, show distinctive patterns which allow direct correlation between the occupation areas. These methods provide quick and inexpensive means for investigators to evaluate new sites or to correlate between and within sites, without resorting to other more time-consuming and expensive techniques.     

Thermal waters of ‘tectonic origin’: the alkaline,Na‐HCO3 waters of the Rio Valdez geothermal area (Isla Grande de Tierra del Fuego,Argentina)

The geothermal area of Rio Valdez is located in the central portion of the Isla Grande de Tierra del Fuego (South Argentina), ten kilometers south of the southeastern sector of the Fagnano Lake. It consists of a series of thermal springs with low discharge rates (≤1 L/s) and temperatures in the range of 20–33°C distributed in an area of <1 km². The thermal springs are characterized by alkaline, Na‐HCO₃ waters with low salinity (0.53÷0.58 g/L), but relatively high fluoride contents (up to 19.4 mg/L). Their composition is the result of a slow circulation at depth, possibly through deep tectonic discontinuities connected with the Magallanes‐Fagnano Fault (MFF) system. According to geothermometric calculations, thermal waters reach temperatures in the range of 100–150°C and an almost complete chemical equilibrium with the alkali‐feldspars in the metavolcanic country rocks. The relatively high fluorine contents can be explained by the slow ascent and cooling of deep groundwaters followed by a progressive re‐equilibration with F‐bearing, hydrated Mg‐silicates, such as chlorite, which has been recognized as an abundant mineral in the metavolcanics of the Lemaire Formation and metapelites and metagraywackes of the Yahgán Formation. Finally, the isotopic composition of the investigated samples is consistent with the infiltration from local snow melting at altitudes in the range of 610–770 m asl. The comparison of our data with those collected in 1991 seems to suggest a possible progressive decline of the bulk thermal output in the near future. This possibility should be seriously considered before planning a potentially onerous exploitation of the resource. Presently, the only ways to exploit this geothermal resource by the population scattered in the area are the direct use of thermal waters and/or spa structures.     

An Early Portuguese Mariner's Astrolabe from the Sodré Wreck‐site,Al Hallaniyah,Oman

A unique leaded‐gunmetal disc decorated with iconic Portuguese markings was recovered in 2014 during archaeological excavations at the Sodré shipwreck site in Al Hallaniyah, Oman. Initially the identity and function of the disc was unknown, although it did possess characteristics suggesting it could be an astrolabe. Laser imaging of the disc post conservation revealed regular scale marks on the limb of its upper right quadrant. Accurate digital measurements of the marks show them to be graded at close to 5‐degree intervals, thus confirming the identity of the disc as a mariner's astrolabe and the earliest known example discovered to date.     

El Paso del Norte … Modernization Utopias, Othering and Management Practices in Mexico's Maquiladora Industry

Starting from the assumption that maquiladora managers play a crucial role in the current struggle for the discursive construction of the "modern" Mexico, this paper critically engages with these powerful actors and their representations of maquiladora workers and the production environment. Adopting a critical perspective on traditional notions of modernity and modernization, I start my argument from the assumption that the idea of linear progress and its use as a universal blueprint to hierarchically order the social world has not disappeared. Though the idea of progress and development is, at first glance, a simple and straightforward message, it is actually full of paradoxes. Using case-study material from El Paso del Norte, the international agglomeration on the Mexican-US border combining Ciudad Ju´rez and El Paso, I argue that both the image of maquiladoras as developed and the image of them as backward are indispensable to the modernization discourse within the maquiladora industry. I seek to show that maquiladora managers play a powerful role in transmitting the modernization narrative and that in doing so they are getting caught within its contradictions. By producing and reproducing discourses of Ciudad Ju´rez and its inhabitants as backward, while simultaneously attempting to prove that there is progress and development, managers recreate some of the very problems they attempt to overcome.     

Debating Womanhood,Defining Freedom: The Abolition of Slavery in 1880s Rio de Janeiro

This article demonstrates how both the agency of women of colour and a particular set of ideas about femininity and maternity played an important part in shaping the ending of slavery in the city of Rio de Janeiro. It does so through the prism of untapped municipal documentation, exploring initiatives taken by the city council both to abolish slavery by emancipating mainly women and to shape the city's first generation of fully free working families by founding schools and charitable institutions. In enacting these measures, councillors found themselves debating not only the meanings of freedom, but the meanings of ex‐slave womanhood. Their discussions reflected both the long‐term development of ‘free womb logic’ in Brazilian slavery and emancipation, and tendencies by the 1880s abolitionist movement to make emotive, ‘feminised’ appeals for elite women to sympathise with enslaved mothers. The article explores how women of colour used elite discourses about freedom, maternity and womanhood in order to achieve freedom, but also contested and reshaped them as they sought to bring their own lived meanings to freedom.     

Excavations at Rio Claro,Northeast Honduras: Preliminary Report

Abstract

During the summer of 1975, preliminary survey, mapping, and excavations were conducted at the H-CN-12:Rio Claro site, a sizeable Pre-Hispanic village settlement in the Department of ColónNE Honduras, Central America. Artifactual remains and chronometric determinations indicate that the settlement was inhabited during the Cocal Period (ca. 1000-1530 A.C.). This report describes the location and layout of H-CN-12:Rio Claro, principal excavations, the first regional radiocarbon dates for the Cocal Period, and some of the artifacts and significant findings of the second season of fieldwork in this little-studied region of the Americas. The possibility is raised that the site is the ethnohistorical chiefdom center Papayeca.