TRACE AND MINOR ELEMENT ANALYSIS OF OBSIDIAN FROM ...
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Subalkalic Silicic Obsidians - USGS Publications WarehouseThe local temperature Td(r) of each ring can be derived from the sum of the ... obsidian grains of a size at least 30 times those of the interstellar ... gis analysis of obsidian artifact distributions at holtun from theThe graphic in Figure 31, shows the proportional differences in obsidian frequencies among the groups. The graphic features a high concentration of ... Towards a Multi-Agent-Based Modelling of Obsidian Exchange in ...Abstract This paper examines an alternative approach to previously proposed models of prehistoric exchange such as the law of monotonic ...
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