A heap of pottery fragments has confused us about the Mayan’s previously living sites, but just like as geologist analyzing the different geological periods of the Earth had experienced, we can make use of the same technology of analysis too. The technology, known as "geological setting", followed a unified principle of – materials which produced or formed former will deposited earlier. As a result, the pottery found in the deepest reactor bottom of the sediments is the oldest pottery.
In the areas of pottery makers who lived together, pottery relic piles of ceramic fragments were gradually formed, and mixed with other debris. These relic piles usually were found in exposed places, of which most perishable materials have disappeared. Aside from those relic piles that in rare dry climate or with covers, in those exposed relic piles only those hardly damaged objects could been found, such as stones, shells, bones, as well as ceramic flakes, some of them are valued with archaeological meanings and are most important for the recording of break-off ears.
These relic sites always near to the areas the maker lived in, the depth of which usually as deep as several rules. The cross-section of the sediment has displayed that it is no doubt that the Mayas who lived near to the accumulation site of debris has a long period of history of pottery making. The sediment layer just like the ceramic flakes could provides us a reliable and related order about pottery, but does not offer us with an absolute chronology of the pottery development.
This technology of judging the era according to the typical pottery of various pottery species had improved the Pueblo’s Indian culture in the southwestern United States greatly.
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