Theoretical and Epistemological Thoughts on Archaeology and Experimental Lithic Technology

In the wide field of archaeology, stone tool remains are one of the main pieces of evidence used for assessing knowledge and understanding of the archaeological record. To cope with its analysis and interpretation as a branch of experimental archaeology, one field of research that has become more notable is experimental lithic technology. Based on experience and development of this discipline in the southern cone of South America, and with the aim of contributing to the growing theoretical perspectives in this field, this paper addresses the theoretical and epistemological issues that deal with theoretical, variability, classification, and deontological concerns

Fishtail Points, Technology and Microwear Analysis from the Negro River Basin, Uruguay

Ongoing research performed in the central part of Uruguay added new Paleo-Southamerican finds from the Negro River basin. A number of lithic exemplars were analyzed to determine their technology and function. The examined artifacts provided a new perspective on Fisthail points. Microwear analysis showed that there is a difference in the location of microscopic polishing between the blade and stem in the examined points. Polishing in the stem?s border might be attributed to leather or a similar substance, probably the leather cord or sinew used to bind the points in the foreshaft. The surface of the stem shows a coarse micro-topography and has patches of black residues. The coarse micro-topography suggests the use of an adhesive substance covering the whole stem, while the black patches are probably the residue used to glue the points in the foreshafts. Most remarkable is the discovery of the use of edge-to-edge and overshot flaking for bifacial reduction, technical features shared with Paleoindian fishtailed points from North and Central America.Facultad de Ciencias Naturales y Muse

Aportes para el conocimiento de técnicas líticas del Pleistoceno final : Análisis de artefactos bifaciales del Norte de Venezuela (Colección Edmonton, Canadá)

Sobre la base del estudio de una colección procedente del Norte de Venezuela se describe un conjunto de artefactos bifaciales. Desde una perspectiva antropológica se los incluye en un proceso de producción de instrumentos líticos. Por otra parte, se propone un modelo de manufactura de la secuencia de reducción bifacial derivada de las observaciones arqueológicas.Based on the study of a collection from the north of Venezuela, a group of bifacial artifacts is described. From an anthropological point of view they are included in a lithic-tool production process. A model of manufacture of the bifacial reduction sequence is proposed, derived from the archaeological observations.Sociedad Argentina de Antropologí

Simulación y réplica de puntas de proyectil

Fil: Nami, Hugo G.. Universidad de Buenos Aires. Facultad de Filosofía y Letra

Los retocadores de hueso desde la perspectiva del tallador experimental

Fil: Nami, Hugo G.. Universidad de Buenos Aires. Facultad de Filosofía y Letra

Arqueología experimental, talla de la piedra contemporánea, arte moderno y técnicas tradicionales: observaciones actualísticas para discutir estilo en tecnología lítica

Desde un punto de vista actualístico, este artículo trata sobre varios conceptos empleados desde la perspectiva experimental en arqueología y tecnología lítica. Sobre esa base, se da cuenta de las observaciones realizadas sobre un tallador de piedra contemporáneo, los productos de su trabajo y las fuentes de inspiración que utiliza. Sobre esa base se discuten cuestiones relacionados con el estilo en la manufactura de instrumentos líticos y su utilidad potencial para discutir cuestiones estilísticas en tecnologías líticas del pasado.From an actualistic point of view this article deals with several concepts used from the experimental perspective in archaeology and lithic technology. On this basis, the observations carried out on a contemporary flintknapper, the product of his work and the sources of inspiration that he uses are reported. Consequently, issues related to style in the stone tool manufacturing process and their potential utility for understanding similar matters in the past are discussed.Sociedad Argentina de Antropologí

Preliminarni paleomagnetski rezultati zapisa iz zavr{nog pleistocena/holocena, iz sjeveroisto~ne provincije Buenos Aires (Argentina)

Paleomagnetic data from the Lomas del Mirador (34° 39.29’ S, 58° 32.17’ W) sedimentary section in northeastern Buenos Aires province (Argentina) comprises 149 oriented samples that record a significant but gentle gradual change in the geomagnetic field at the terminal Pleistocene and Holocene. Based on rock magnetic and detrital remanence experiments, the deposit seems to be a good recorder of the past geomagnetic field behavior. The characteristic remanent magnetization (ChRM), determined by progressive AF demagnetization, shows that the sections registered normal and inter­mediate polarities during the terminal Pleistocene/Holocene. The PSV is cha­racterized by a large variation with ~ 80° difference in inclination in both sections and a significant but gentle westward shift in the declination in the upper part. A similar trend was observed in the paleomagnetic record re­gis­tered in other sections from northeastern Argentina. This remarkably large PSV, especially the inclination record, became a reliable chronostra­ti­gra­phical marker for latest Pleistocene/Holocene sedimentary deposits in north­eastern Buenos Aires. VGPs resemble those registered during terminal Pleis­to­cene and Holocene in the southern cone of South America. Palaeomagnetic poles for the sections other contemporaneous sites from northeastern Ar­gen­tina fall some ~ 5–15° away from the Earth’s rotation’s axisPaleomagnetski podaci iz sedimentnog terena Lomas del Mirador (34° 39.29\u27 S, 58° 32.17\u27 W) u sjeveroistočnoj provinciji Buenos Aires (Argentina) obuhvaćaju 149 orjentiranih uzoraka. Zabilježena je značajna ali postupna promjena u geomagnetskom polju u završnom pleistocenu i holocenu. Pokazalo se da su u ispitivanim naslagama dobro zabilježene povijesne geomagnetske promjene. Karakteristična remanencija magnetiziranja (ChRM), određena progresivnom AF demagnetizacijom ukazuje na normalni i prijelazni polaritet za vrijeme pleistocena/holocena. Paleosekularna varijacija (PSV) je karakterizirana velikim odstupanjem, s razlikom u inklinaciji u obje sekcije (oko 80°), te signifikantnim, iako blagim, pomakom deklinacije prema zapadu u gornjem dijelu. Sličan je trend opažen u paleomagnetskim zapisima registriranima u drugim područjima sjeveroistočne Argentine. Taj izrazito veliki PSV, osobito u zabilježenoj inklinaciji, postao je pouzdan kronostratigrafski marker za plesistocenske/holocenske sedimentne naslage u sjevereoistočnom Buenos Airesu. Virtuelni položaj geomagnetskih polova (VGP) nalikuje onima registriranima za vrijeme završnog pleistocena i holocena u južnom dijelu Južne Amerike. Paleomagnetski polovi za isto razdoblje za sekcije iz drugih područja sjeveroistočne Argentine otklonjeni su približno 5–15° od osi Zemljine rotacije

Aportes para el conocimiento de técnicas líticas del Pleistoceno final : Análisis de artefactos bifaciales del Norte de Venezuela (Colección Edmonton, Canadá)

Sobre la base del estudio de una colección procedente del Norte de Venezuela se describe un conjunto de artefactos bifaciales. Desde una perspectiva antropológica se los incluye en un proceso de producción de instrumentos líticos. Por otra parte, se propone un modelo de manufactura de la secuencia de reducción bifacial derivada de las observaciones arqueológicas.Based on the study of a collection from the north of Venezuela, a group of bifacial artifacts is described. From an anthropological point of view they are included in a lithic-tool production process. A model of manufacture of the bifacial reduction sequence is proposed, derived from the archaeological observations.Sociedad Argentina de Antropologí