Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Multi-technique investigation of potshards of a cerrito (earthen mound) from southern Brazil

Full text
Author(s):
Puglieri, Thiago Sevilhano [1] ; Milheira, Rafael Guedes [2] ; Del Lama, Eliane Aparecida [3] ; Magon, Patricia Marques [3] ; do Santos, Sailer Santos [4]
Total Authors: 5
Affiliation:
[1] Univ Fed Pelotas, Dept Museol Conserve & Restauro, Rua Almirante Barroso 1160-1268, BR-96010280 Pelotas, RS - Brazil
[2] Univ Fed Pelotas, Dept Antropol & Arqueol, Rua Coronel Alberto Rosa 154, BR-96020220 Pelotas, RS - Brazil
[3] Univ Sao Paulo, Inst Geociencias, Rua Lago 562, BR-05508080 Sao Paulo, SP - Brazil
[4] Univ Fed Santa Maria, Dept Quim, BR-97105900 Santa Maria, RS - Brazil
Total Affiliations: 4
Document type: Journal article
Source: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY; v. 206, p. 48-56, JAN 5 2019.
Web of Science Citations: 3
Abstract

The physicochemical investigation of ceramics crafted and managed by ancient humans allows a better understanding of their social, technological, economical, routine and artistic activities. The Brazilian State of Rio Grande do Sul presents the biggest number of registered archaeological sites in the country, and many of them are earthen mounds, locally known as cerritos de indios. This kind of archaeological site is of utmost importance to understand the social development of the biome Pampa - including areas from Brazil, Argentina and Uruguay and almost nothing is known about the physicochemical composition of the artifacts from the Brazilian portion. In this work we investigated the mineral phases present in archaeological ceramics from the cerrito Pavao I (PSG-20) by means of white light microscopy (petrography), Raman micro-spectroscopy, XRD and XRF spectroscopies, and FTIR-ATR. Different minerals were identified and allowed to propose a firing temperature of ca. 500-650 degrees C. It was also suggested that the makers used both oxidizing and reducing atmospheres, that more than one clay source was used to prepare the ceramics, and that trace elements are present in different shards. Regarding the multi-analytical technique approach, the results highlight the importance of complementary investigations and underline the role of Raman micro-spectroscopy for these objects. (C) 2018 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 15/10858-8 - STUDIES OF CONSERVATION OF GEOLOGICAL MATERIALS USED IN CULTURAL HERITAGE
Grantee:Eliane Aparecida Del Lama
Support Opportunities: Regular Research Grants