Coastal Maya Obsidian Trade in the Late Postclassic to Early Colonial Period: The View From San Pedro, Ambergris Caye, Belize

This paper deals with the results of the author"s attempts to replicate the obsidian polyhedral cores and prismatic blades of Mesoamerica. Blades have been produced by the direct percussion, indirect percussion, and pressure methods. The pressure method using a chest crutch and a clamp produces cores and blades which are true replicas of aboriginal specimens. The importance of preforming the core and of platform preparation is stressed, and it is pointed out that, usually, actual removal of the blade offers few problems. However, to produce exhausted cores which show the perfection of aboriginal specimens and a large series of nearly identical blades requires good muscular coordination, high quality material, the establishment of patterns or rhythms of motor habits, and the absence of distractions. The author also discusses the difficulties of recovering from mistakes in manufacture. High-speed photography of prismatic blade removal, at 5,000 frames per second, has helped illustrate the behavior of the material and of the stoneworker. These photographs also indicate that under the present experimental and photographic conditions the author (Crabtree) is able to remove a prismatic blade from a core in about 1,250th of a second. Show more

The southern Maya lowlands present a largely redundant environment which does not possess the potential for major internal symbiotic regions or for irrigation. In fact, the interior of this region is uniformly deficient in resources essential to the efficiency of every individual household engaged in the Mesoamerican agricultural subsistence economy: mineral salt, obsidian for blades, and hard stone for grinding. Yet, in the core of this rain forest region, the basic elements of Classic Maya civilization first coalesced. A model involving methods of procuring and distributing the resources necessary to the efficiency of an agricultural subsistence economy explains the loci of lowland Classic Maya development and the order in which these loci developed. This model can also be applied to the Olmec civilization. Show more