Análise macroscópica de litologias identificadas no contexto do sítio Go-Ja-02, Serranópolis, Goiás.

Abstract

This work analyzes lithological samples from two distinct collections, sedimentary (sandstone) from the GO-Ja-02 site and igneous (basalt) from Serra do Saninho, with the main objective of preparing a direct text, but with appropriate terms and that speaks mainly to the new students in Archeology courses. It involves bibliographical research with emphasis on geoarchaeology and macroscopic analysis in a laboratory where the basic characteristics of samples from the two lithologies were obtained. It presents a brief correlation between basalt and sandstone with the pre-colonial occupation of the area by groups of hunter-gatherers and farmer-ceramists, with the result of the spherical exfoliation of the basalt, which in addition to providing fertility to the soil, provides instruments such as percutors, beaters and grinders, on the other hand, the different intensities of siliceous cementation of sandstone can provide good flakes, or antiplasts in ceramic production. The text sought to avoid the excessive use of technical terms, which is difficult in relation to petrology and mineralogy.