Resumo

MARCOS, M. Alejandra; BAMONTE, Florencia P.  e  MANCINI, M. Virginia. USE OF POLLEN DATA IN ARCHAEOLOGICAL SITES OF PATAGONIA: STATISTICAL METHODOLOGIES, REACHES AND INTERPRETATIVE LIMITS. Comechingonia [online]. 2020, vol.24, n.2, pp.1-10. ISSN 1851-0027.

The archaeological sites of Santa Cruz have provided important information about vegetation and climate changes at different spatial and temporal scales. In this paper we present methodological examples to analyze modern pollen and fossil record data of four archaeological sequences (CMN1 and COCU, at 47 ° S, 71 ° W and B1Oq and CPD at 49 ° S, 72 ° W) west of Santa Cruz. Based on these results, we discussed the scopes and interpretative limits of the data used. Our results indicate that the vegetation units were differed with statistical significance at local and regional scales for both areas. The studied sequences have allowed us to estimate the spatial representation of the fossil record through a Detrended Correspondence Analysis. CMN1 and CPD reflect vegetation changes at mesoscale verifiable with other natural sequences (47 ° - 49 ° S and 50 ° S), while COCU and B1Oq indicate a local vegetation signal. While should consider carefully the data scope to address the palaeoenvironmental question, that archaeological sequences provide valuable information and are very important in those environments where continuous natural sequences are not available. In this article, we conclude that statistical analysis are an important tool that complements our analyzes. Also, it is necessary to know the study areas particularities, the surrounding vegetation, its geomorphology and the spatial representation of modern and fossil records to reflect with high fidelity the pollen studies.

Palavras-chave : modern and fossil pollen model, spatial and temporal analysis scales, archaeological sites; Patagonia.