A paleoecologia humana da Lapa do Picareiro

A Lapa do Picareiro localiza-se na Serra d’Aire, a cerca de 10 km a Sul de Fátima. A povoação mais próxima é Covão do Coelho, que se encontra a menos de 2 km de distância e é perfeitamente visível da cavidade. Esta encontra-se a 540 metros de altitude estando virada a poente. A cavidade, em forma triangular, tem cerca de 10 metros de profundidade e 8 metros de largura, sendo a entrada marcada pela presença de um cone importante composto por grandes blocos de calcário que ajudam a marcar a drip line, que forma um corredor com entre 3 a 5 metros entre aquele e a entrada da gruta que se estende por cerca de 5 metros de largura com 1,2 de altura (Bicho et al., 2003). Os trabalhos recentes realizados na gruta tiveram lugar entre 1994, ano em que se procedeu à limpeza de um antigo corte resultante dos trabalhos de Gustavo Marques e Gil Miguéis de Andrade nos anos 50 (Marques e Andrade, 1974) e 2001. Durante este período de 8 anos procederam-se a trabalhos de escavação em área, atingindo os 37 metros quadrados e cerca de 4,5 metros de profundidade

Hydroclimate variability from western Iberia (Portugal) during the Holocene: insights from a composite stalagmite isotope record

© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Thatcher, D. L., Wanamaker, A. D., Denniston, R. F., Asmerom, Y., Polyak, V. J., Fullick, D., Ummenhofer, C. C., Gillikin, D. P., & Haws, J. A. Hydroclimate variability from western Iberia (Portugal) during the Holocene: insights from a composite stalagmite isotope record. Holocene, (2020): 095968362090864, doi:10.1177/0959683620908648.Iberia is predicted under future warming scenarios to be increasingly impacted by drought. While it is known that this region has experienced multiple intervals of enhanced aridity over the Holocene, additional hydroclimate-sensitive records from Iberia are necessary to place current and future drying into a broader perspective. Toward that end, we present a multi-proxy composite record from six well-dated and overlapping speleothems from Buraca Gloriosa (BG) cave, located in western Portugal. The coherence between the six stalagmites in this composite stalagmite record illustrates that climate (not in-cave processes) impacts speleothem isotopic values. This record provides the first high-resolution, precisely dated, terrestrial record of Holocene hydroclimate from west-central Iberia. The BG record reveals that aridity in western Portugal increased secularly from 9.0 ka BP to present, as evidenced by rising values of both carbon (δ13C) and oxygen (δ18O) stable isotope values. This trend tracks the decrease in Northern Hemisphere summer insolation and parallels Iberian margin sea surface temperatures (SST). The increased aridity over the Holocene is consistent with changes in Hadley Circulation and a southward migration of the Intertropical Convergence Zone (ITCZ). Centennial-scale shifts in hydroclimate are coincident with changes in total solar irradiance (TSI) after 4 ka BP. Several major drying events are evident, the most prominent of which was centered around 4.2 ka BP, a feature also noted in other Iberian climate records and coinciding with well-documented regional cultural shifts. Substantially, wetter conditions occurred from 0.8 ka BP to 0.15 ka BP, including much of the ‘Little Ice Age’. This was followed by increasing aridity toward present day. This composite stalagmite proxy record complements oceanic records from coastal Iberia, lacustrine records from inland Iberia, and speleothem records from both northern and southern Spain and depicts the spatial and temporal variability in hydroclimate in Iberia.The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported, in part, by the US National Science Foundation (Grants: #1804528 to ADW; #1804635 to RD; #1804132 to CCU; #1806025 to YA and VP; #1805163 to DPG; BCS-0455145, BCS-0612923, and BCS-1118155 to JAH)

Lapa do Picareiro, un asentamiento de caza magdaleniense en la Estremadura portuguesa

Lapa do Picareiro es un yacimiento situado en la Estremadura portuguesa, en la Serra d’Aire. Los estudios zooarqueológicos llevados a cabo nos hablan de un lugar especializado de caza y procesado de distintas especies animales durante el magdaleniense y el epipaleolítico. Por su parte, los análisis líticos confirman la presencia de un utillaje en el que destacan las laminillas de dorso empleadas como proyectiles y las lascas y láminas destinadas al corte de carne y al tratamiento de la piel.Lapa do Picareiro is a cave site located in Serra d’Aire, Portuguese Estremadura. Zooarchaeological studies suggest that the cave was a specialized site for hunting and processing animals during the Magdalenian and the Epipaleolithic. Lithic analyses seem to confirm this idea with the presence of backed bladelets used as projectile points and flakes with evidence of cutting meat and hide processing

Lapa do Picareiro (Alcanede, Portugal): análisis traceológico de los materiales líticos de los niveles F/G

Lapa do Picareiro (Cueva de Picareiro) está situado al noroeste de Lisboa, cerca de la ciudad de Fátima, en la Serra d’Aire (Figura 1). La cueva, que se localiza a 540 metros de altitud, muestra una morfología triangular, un alto techo y una entrada de aproximadamente 10´8 metros (Figura 2). Debajo de la línea del goteo aparece un cono marcado por la presencia de grandes bloques de piedra caliza, formando uno pasillo abierto de entre 3 y 5 metros de ancho entre la línea del goteo y la boca de la cueva. La entrada se abre dirección norte-noreste y tiene cerca de 5 metros de anchura y un máximo de 1.2 metros de altura (Bicho et al. , 2003; 2006a). Las excavaciones arqueológicas se iniciaron en 1994 con la limpieza de un corte estratigráfico realizado por Gustavo Marques en los años 50 (Marques y Andrade, 1974). En 2001 finalizan los trabajos de campo iniciados en 1996 con motivo de los proyectos dirigidos por N. Bicho: “A Ocupação Humana Paleolítica do Algarve” y “ A importância dos recursos aquáticos no Paleolítico do Algarve (Portugal)” (Bicho et al. , 2003). Durante estos años se excavan unos 35 m2 con una profundidad de 4.5 metros

Portable art and personal ornaments from Txina-Txina: a new later stone age site in the Limpopo River Valley, southern Mozambique

This paper reports on preliminary fieldwork at the Later Stone Age site of Txina-Txina in Mozambique. Excavation yielded a long stratigraphic sequence, a large lithic assemblage, a unique decorated gastropod shell fragment and two ostrich eggshell beadsthe first of their type recovered from a Stone Age context in Mozambique.Fundacao para a Ciencia e Tecnologia [PTDC/EPH-ARQ/4998/2012, PTDC/EPHARQ/4168/2014]; National Geographic Society [W373.15, HJ-033R-17

Changes in approach of Neanderthal study – Research in Lapa do Picareiro, Portugal

Neandetherthal skeletal remains are the first described and longest-studied modern human ancestors. The history of research on Neanderthals dates back to the discovery of the first specimen in the Feldhoffer cave in 1856. Initially, the debate focused on the taxonomic position of the Neanderthals and their exact anatomical relationship with modern humans. Later research concentrated on many other issues including partial aspects of life, biological and cultural adaptation to glacial conditions in Europe, issues of diet and health, or issues such as paleobiology of Neanderthals (reproductive behavior, ontogeny, mortality). Another important direction is the question of Neanderthal extinction in the period between 30 to 25 thousand years BP. This paper provides an overview of the research directions related to Neanderthals in the context of new discoveries of skeletal remains and the development of new methods of study. The authors use the specific research conducted on the Lapa do Picareiro site in Portugal as an example of a research aimed at the reconstruction of Neanderthal environment and Neanderthal behavior.Neandetherthal skeletal remains are the first described and longest-studied modern human ancestors. The history of research on Neanderthals dates back to the discovery of the first specimen in the Feldhoffer cave in 1856. Initially, the debate focused on the taxonomic position of the Neanderthals and their exact anatomical relationship with modern humans. Later research concentrated on many other issues including partial aspects of life, biological and cultural adaptation to glacial conditions in Europe, issues of diet and health, or issues such as paleobiology of Neanderthals (reproductive behavior, ontogeny, mortality). Another important direction is the question of Neanderthal extinction in the period between 30 to 25 thousand years BP. This paper provides an overview of the research directions related to Neanderthals in the context of new discoveries of skeletal remains and the development of new methods of study. The authors use the specific research conducted on the Lapa do Picareiro site in Portugal as an example of a research aimed at the reconstruction of Neanderthal environment and Neanderthal behavior

The early Aurignacian dispersal of modern humans into westernmost Eurasia

Documenting the first appearance of modern humans in a given region is key to understanding the dispersal process and the replacement or assimilation of indigenous human populations such as the Neanderthals. The Iberian Peninsula was the last refuge of Neanderthal populations as modern humans advanced across Eurasia. Here we present evidence of an early Aurignacian occupation at Lapa do Picareiro in central Portugal. Diagnostic artifacts were found in a sealed stratigraphic layer dated 41.1 to 38.1 ka cal BP, documenting a modern human presence on the western margin of Iberia ∼5,000 years earlier than previously known. The data indicate a rapid modern human dispersal across southern Europe, reaching the westernmost edge where Neanderthals were thought to persist. The results support the notion of a mosaic process of modern human dispersal and replacement of indigenous Neanderthal populations.BCS-1420299 / BCS-1724997 / BCS-1420453 / BCS-1725015 / SGS-2020-017 / DL 57/2016/CP1361/CT0026 / IF/01075/2013info:eu-repo/semantics/publishedVersio