A Comparison of Mortuary Practices among the Tucson Basin Hohokam and Trincheras Traditions

Mortuary rituals are compared and contrasted in order to better understand social interaction between the Tucson Basin Hohokam of southern Arizona and the Trincheras tradition populations of northern Sonora. This interaction is explored through the examination of ideas about personhood and embodiment, and their relationship to the biological profiles and posthumous treatments of individuals during the Hohokam Classic period (AD 1150–1450) and the occupation of Cerro de Trincheras (AD 1300–1450). In both areas, cremation was the main burial custom, and both groups had complex, multistage cremation rituals, in which burning of the body played only a small part. Examination of rich archaeological data and well-excavated contexts at these sites revealed remarkable similarities and differences in body treatment during the mortuary ritual. Tucson Basin Hohokam mortuary practices suggest a stronger connection to, and remembrance of, the deceased within smaller social groups. In contrast, mortuary practices at Cerro de Trincheras emphasize similarities among the various cremated individuals, with rituals directed more toward the broader social group. Results suggest that the two groups were fundamentally similar in how they treated the bodies of the dead during the cremation process, but different in how the dead were remembered and commemorated.

Parsing Routes to Aquifer Recharge Along Mountain Fronts

Research from the Tucson Basin indicates that tracers can be used to distinguish surface and subsurface recharge, providing crucial data to support sustainable water management in arid environments.

Bodies among Fragments

Inhumation and cremation usually are studied in isolation regardless of the fact that they may be practiced in the same culture and time period. Among the Tucson Basin Hohokam in the Prehispanic American Southwest cremation was the main funeral custom and inhumation was practiced at a very low frequency throughout the Preclassic (AD 700–1150) and Classic (AD 1150–1450/1500) periods. This chapter explores changes through time in non-normative burial customs of inhumation from ten Tucson Basin (Arizona) Hohokam archaeological sites by exploring both biological reconstruction of bodies and posthumous treatments within and between sites. Inhumations are contrasted with cremations to explore how they are related but distinct practices of remembrance, and it is argued that critical and contextualized approaches to the study of non-normative burials are necessary in order to reconstruct the complexity of funeral customs and their associated cultural significance through time. The results provide a glimpse of social variation and multiple social groups within the Tucson Basin Hohokam sites.

Hydrology of Mountain Blocks in Arizona and New Mexico as Revealed by Isotopes in Groundwater and Precipitation

Mountain-block groundwater in the Southern Basin-and-Range Province shows a variety of patterns of δ18O and δ2H that indicate multiple recharge mechanisms. At 2420 m above sea level (masl) in Tucson Basin, seasonal amount-weighted means of δ18O and δ2H for summer are −8.3, −53‰, and for winter, −10.8 and −70‰, respectively. Elevation-effect coefficients for δ18O and δ2H are as follows: summer, −1.6 and −7.7 ‰ per km and winter, −1.1 and −8.9 ‰ per km. Little altitude effect exists in 25% of seasons studied. At 2420 masl, amount-weighted monthly averages of δ18O and δ2H decrease in summer but increase in winter as precipitation intensity increases. In snow-banks, δ18O and δ2H commonly plots close to the winter local meteoric water line (LMWL). Four principal patterns of (δ18O, δ2H) data have been identified: (1) data plotting along LMWLs for all precipitation at >1800 masl; (2) data plotting along modified LMWLs for the wettest 30% of months at <1700 masl; (3) evaporation trends at all elevations; (4) other patterns, including those affected by ancient groundwater. Young, tritiated groundwater predominates in studied mountain blocks. Ancient groundwater forms separate systems and mixes with young groundwater. Recharge mechanisms reflect a complex interplay of precipitation season, altitude, precipitation intensity, groundwater age and geology. Tucson Basin alluvium receives mountain-front recharge containing 50%–90% winter precipitation.