A Paleoindian campsite has been uncovered in stratified prehistoric deposits in Caverna da Pedra Pintada at Monte Alegre in the Brazilian Amazon. Fifty-six radiocarbon dates on carbonized plant remains and 13 luminescence dates on lithics and sediment indicate a late Pleistocene age contemporary with North American Paleoindians. Paintings, triangular bifacial spear points, and other tools in the cave document a culture distinct from North American cultures. Carbonized tree fruits and wood and faunal remains reveal a broad-spectrum economy of humid tropical forest and riverine foraging. The existence of this and related cultures east of the Andes changes understanding of the migrations and ecological adaptations of early foragers.

O projeto de Prospecção arqueológica na área do Projeto Salobo - PA foi desenvolvido entre 2003 e 2006 pelo Museu Paraense Emílio Goeldi com a finalidade de identificar e avaliar os impactos da implantação de atividades mineradoras da empresa VALE ao patrimônio arqueológico, além de indicar medidas necessárias para sua preservação ou resgate. O presente artigo tem por objetivo apresentar a metodologia de levantamento arqueológico utilizada para a identificação de vestígios arqueológicos na área da Floresta Nacional Tapirapé – Aquiri (FLONATA), município de Marabá / PA, a qual será afetada pela implantação deste empreendimento. Esta experiência deverá suscitar discussões quanto aos alcances e limites da abordagem apresentada, cujo resultado foi a identificação de 22 sítios e cinco ocorrências arqueológicas.

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The last couple of decades have seen the conversion of a large number of trading tankers into floating production, storage, and offloading units (FPSOs). ABS records indicate that about a fifth of the worldwide FPSO fleet is approaching the end of its designed service life, with a significant number of these operating in Brazilian waters. Meanwhile, new discoveries in pre-salt reservoirs and the recent proven technologies for oil recovery have been pushing operators and concessionaires to extend oil production in these fields beyond their originally predicted life. Additionally, recent pre-salt oil developments offshore Brazil have increased the demand for new units. The result of these developments is a stated industry need to extend the service lives of existing FPSOs. This need in association with the refinement of environmental data and enhancement of Rules requires the verification of the adequacy of the FPSO unit to withstand the design operational loads, and its updates, refurbishments and additional equipment using currently available engineering tools for numerical simulations and the current Code and Class Rule requirements. A new methodology to review these units employing state-of-art technology tools was developed using studies comparing existing FPSO arrangements based on prescriptive classification rule requirements and finite element analyses. Comparisons were performed between the results of these analyses and the original approved design data. Such comparisons are significant in understanding FPSO structural capacity at the conversion stage, its performance during its intended service, and its remaining service life. Differences were mapped and the reasons for these differences were investigated to determine typical engineering procedures needed for predicting the estimated remaining service life. The resulting approach is a new method for evaluating the remaining structural life of existing FPSOs. This approach also enlists an in-service inspection program to provide the necessary information regarding structural degradation during years of operation, previous repairs, and the most current condition. A similar approach also can be used for other hull forms.

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The Offshore Oil and Gas Industry has converted a large number of units from trading tankers and carriers into Floating Production, Storage and Offloading units (FPSOs). Several of these have been moored offshore Brazil during the last 15 years. Following the discovery of offshore pre-salt fields some years ago, demand for FPSOs has increased, and the forecasts for productive field lives have grown. The result of these developments is the need to extend the service lives of existing FPSOs. The main aim of this study is to investigate FPSO structural response to environmental conditions and functional loads, considering the actual available tools for numerical simulations and Rule requirements, which currently are basic requirements for design review for Classification. The procedure was developed from one selected FPSO converted from a trading Very Large Crude Carrier (VLCC) tanker approximately 15 years ago and includes investigation of the impact on hull behavior comparing the motion analyses of the production unit under environmental data and software capabilities available at the period of conversion and actual performance: variances in the environmental (sea scatter diagrams) datasets; updates to Classification requirements for defining offloading conditions, environmental loads, acceptance criteria and remaining fatigue life (RFL); and incorporating the most recent gauged thickness for primary structure. The selected FPSO was evaluated according to prescriptive Rule requirements and also using finite element analysis, taking into account the previous conditions of Classification approval as well as the actual requirements and available data. Structural analysis included one global model and some local refined models to address strength, buckling and fatigue capacity of the typical portions/connections of the hull. The comparisons performed from the results of these analyses are a crucial step toward understanding the structural capacity of the FPSO at the conversion stage, its performance during the last 15 years, and its remaining service life. Differences were tabulated and evaluated so that a more precise level of uncertainty could be achieved for predicting the estimated remaining service life, and consequently, a new and dedicated approach to investigate the existing FPSO fleet is being generated.

Com o intuito de refletir sobre a regulamentação da profissão de Arqueóloga/o, por meio da Lei nº 13.653/2018, a Sociedade de Arqueologia Brasileira (Sab) instituiu o GT Profissão de Arqueóloga/o no Brasil, para avaliar os encaminhamentos legais possíveis a partir do novo estatuto legal. Para cumprir esse objetivo, apresentam-se neste relatório: a) a natureza jurídica de um conselho profissional e da regulamentação da profissão de Arqueóloga/o; b) as alternativas que se colocam no cenário atual, seja para a criação de um conselho profissional de Arqueologia, seja para a sua inserção em um conselho profissional existente ou em uma autarquia pública do poder executivo; c) os encaminhamentos recomendados à continuidade das negociações para registro e fiscalização profissional.