The Managed Mosaic: Ancient Maya Agriculture and Resource by Scott L. Fedick

By Scott L. Fedick

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5). plexes, a task made difficult because of the necessity of depending on stylistic cross dating, since other means of dating the deposits generally were not available. Initially six complexes were used to define six sequential phases, but more recently a revised sequence has been proposed that puts some of the original complexes in question (J. F. Zeitlin et al. 1991). None of the publications so far has reported details of the settlement or subsistence data. The investigators have been hindered in realizing this goal by "the lack of complete and systematic survey in the study area overall and the paucity of biological remains from the sites that have been investigated" (R.

The lake has a maximum depth of 16 m and lacks overland inflows and outflows. In July of 1992, temperatures at the bottom of the cenote were colder than local groundwater (about 26°C), suggesting that the basin is not receiving substantial inputs from the regional aquifer. The low temperatures (less than 23°C) probably reflect the temperature of winter circulation in the lake. 6) of the surface waters probably reflects algal uptake of CO2 for primary production. Methods In 1989, a mud-water interface core was obtained using a polycarbonate core barrel (Fisher et al.

Wright et al. 1984). Together these compose the long core from San José Chulchacá. In 1992, an additional mud-water interface core (short core) was obtained. Both mud-water interface sections were subsampled in the field by holding the coring tube in a vertical position and pushing the extruder up incrementally from the bottom. The sediments thus exposed at the top of the coring tube were either scooped or sliced and then put into Whirl-Pak bags (Fisher et al. 1992). The square-rod sections were extruded in the field, wrapped in plastic and aluminum foil, and inserted in sections of PVC pipe for transport.

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