Suzanne K. Fish

Sambaqui (Shell Mound) Societies of Coastal Brazil

Sambaquis (the Brazilian term for shell mounds, derived from the Tupi language) are widely distributed along the shoreline of Brazil and were noted in European accounts as early as the sixteenth century. They typically occur in highly productive bay and lagoon ecotones where the mingling of salt and fresh waters supports mangrove vegetation and abundant shellfish, fish, and aquatic birds. More than one thousand sambaqui locations are recorded in Brazil’s national register of archaeological sites [Note 1], but represent a fraction of the original number because colonial through modern settlements coincide with these favorable environments. Although sambaquis are of variable scale overall, massive shell mounds are characteristic of Brazil’s southern coast (Figure 18.1). The term “sambaqui” is applied to cultural deposits of varying size and stratigraphy in which shell is a major constituent, undoubtedly encompassing accumulations with a range of functions and origins. Proportions of soil, sand, shell [Note 2], and the kinds of cultural inclusions and features in sambaquis also are variable. Small sambaquis often consist of shell layers over sandy substrates or sequences of shell and sand layers, with or without signs of burning or significant numbers of artifacts. Larger shell mounds typically have horizontally and vertically complex stratigraphy, including alternating sequences of shell deposits, narrower and darker layers of charcoal and burned bone that mark occupation surfaces, and clusters of burials, hearths, and postholes descending from these surfaces. Food refuse is present in sambaquis, along with a set of several feature types that are commonplace in residential occupations. Recognizable dwellings have not been encountered, however, nor do arrangements of features and distributions of artifacts indicate sustained domestic activity, with very few exceptions (e.g., around lakes in the state of Rio de Janeiro: Barbosa et al. 1994; L. Kneip 1992). In some cases, small sambaquis with

Reservoir corrections for marine samples from the South Atlantic Coast, Santa Catarina State, Brazil.

Coeval shell and charcoal from Santa Catarina State, Brazil, differ systematically in (super 14) C content, indicating a reservoir effect in marine samples. For modern samples (AD 1939-2000) and archeological samples (2500-1595 BP), the mean (super 14) C age difference between marine and atmospheric carbon is 220+ or -20 years, the marine carbon being older. For three samples dated AD 1939-1944, a distinct reservoir correction of 510+ or -10 years is also observed. The ages of archeological shell samples from Jabuticabeira may be corrected by subtracting 220 years from the apparent (super 14) C ages.

Prehistory and early history of the Malpai Borderlands: Archaeological synthesis and recommendations

Prehispanic and early historic archaeological information for the Malpai Borderlands of southwest New Mexico and southeast Arizona is reviewed using data derived from field reconnaissance, discussion with relevant scholars, archival resources from varied agencies and institutions, and published literature. Previous regional research has focused on late prehistory (A.D. 1200 to 1450), shaping the scope of cultural historical overview and providing an opportunity to examine relationships with Casas Grandes (Paquime) to the south. A second important objective of current study is the exploration of prehispanic and early historic human impacts to Borderlands ecosystems, particularly in relation fire ecology. A recommended sequence of future research is intended to address significant questions surrounding both culture history and anthropogenic environments in the Malpai Borderlands.