Avaliação dos fatores custo e tempo de entrega para o transporte por cabotagem no Brasil

TCC (graduação) - Universidade Federal de Santa Catarina. Campus Joinville. Engenharia de Transportes e Logística.No contexto de reestruturação da matriz de transportes no Brasil, busca-se uma alternativa ao transporte rodoviário e nesta problemática a cabotagem surge como uma eficiente possibilidade. Dentre os fatores que a colocam neste patamar estão a alta capacidade de carga e o menor consumo de combustível por tonelada transportada. Ainda que venha sendo reconhecido como uma boa alternativa ao desequilíbrio dos transportes o crescimento deste modal ocorre de forma pouco agressiva e existe pouca literatura a nível nacional. Porém, este cenário tende a mudar, nesta fundamentação o presente trabalho se propõe a avaliar a classificação dos fatores custo e tempo de entrega para a cabotagem no Brasil através de um estudo de situação real e verificação em classificação teórica. Além disso, busca-se confirmar a relevância dos fatores escolhidos na escolha modal. A primeira etapa do trabalho foi realizada por meio de pesquisa bibliográfica que fundamentou a parte prática, servindo de insumo para a decisão da teoria e dos fatores a serem utilizados, e também para fornecer uma visão geral dos transportes e da cabotagem no Brasil. A teoria escolhida para a verificação foi a de Ballou (2006), que apresenta uma comparação modal para o transporte de cargas. Dentre os cinco fatores considerados, foram selecionados dois para a verificação neste trabalho: custo do frete e tempo de entrega, sendo o custo de melhor classificação para o transporte aquaviário e o tempo de pior classificação para o autor da teoria. A comparação entre teoria e prática foi realizada através de estudo de campo, com a elaboração de três cenários com informações baseadas no caso real, referente a um transporte possível de ser utilizado na situação estudada. Com os dados levantados discutiu-se a relevância dos fatores custo e tempo na escolha modal ao confrontar a escolha modal baseada unicamente nos dados levantados e a escolha modal já conhecida para o caso em estudo, os fatores mostraram-se relevantes. Por fim a classificação prática foi elaborada e verificada. O resultado da verificação mostrou-se satisfatório, já que a diferença encontrada entre elas pode ser discutida. Assim, considera-se, para a realidade do Brasil, com base na situação estudada, o custo da cabotagem o menor em relação aos demais modais e o tempo de entrega o segundo menor.With the argument of restructuring the transport matrix in Brazil, this term paper seek an alternative solution to road transportation, and in this problem arises cabotage transportation as an efficient possibility. Among the factors that put cabotage in this setting are the high capacity of load and the lowest fuel consumption per ton transported. Still recognized as a good alternative to the transportation imbalance, the modal growth of that kind of transport is a bit aggressive and there is not too much literature nationwide. However, this scenario tends to change, according to this, fact the present study aims to evaluate the classification of factors cost and delivery time for cabotage in Brazil based on a study of the actual situation and verification theoretical classification. In addition, it seeks to confirm relevance of factors chosen in the modal choice. The first step of this work was performed by literature research that justified the practice step, serving as input for the decision theory and the factors to be used, and also to provide an overview of transportation and cabotage in Brazil. The theory was chosen for the verification was the one of the conceptualized author Ballou (2006), which has a modal comparing for load transport. Among the five factors considered, two were selected for this verification work: freight cost and delivery time, the first being the best rating for water transport and the second worst rating for the author of the theory. Comparison between theory and practice was conducted through field study, with the preparation of three scenarios with information based on the real case, each scenario relating to the transport can be used in the situation studied. With the data collected was discussed at relevance of cost and time factors in modal choice by comparing the modal choice based solely on the data collected and the modal choice already known for the case study, factors were relevant. Finally, the practical classification was developed and verified. The scan result was satisfactory, since the difference found between them can be discussed. Thus, considering the reality of Brazil, based on the situation studied, cabotage have the lowest cost in relation to other modals and the delivery time the second minor

~ 610 Ma: a critical age for the Iberian consolidation

AIMS OF THE MEETING: The scientific sessions will be focused on the Pan-African and Cadomian Orogenies recorded in North Africa and western Europe across the Ediacaran Cambrian transition and its bearing in the assembly and demise of Pannotia. Contributions dealing with structural, magmatic, provenance sources, palaeomagnetic, sedimentary, chronostratigraphic and radiometric constraints are particularly welcome. ORGANIZING COMMITTEE: J. Javier Álvaro, Instituto de Geociencias (CSIC-UCM), Spain Martim Chichorro, Universidade Nova de Lisboa, Portugal Gabriel Gutiérrez-Alonso, Universidad de Salamanca, Spain.ABSTRACT: Both the Pan-African orogenic cycle and the peri-Gondwanan Cadomian Orogeny took part in the global tectonic event that led to the rearrangement of Gondwana's west-northern block. An approach to determine the nature of Cadomian - Pan-African events using detrital zircons population from Neoproterozoic-Lower Paleozoic (rift-to-drift cycle) stratigraphic record in Iberian Massif is here discussed.info:eu-repo/semantics/publishedVersio

Cadomian/Pan-African consolidation of the Iberian Massif assessed by its detrital and inherited zircon populations: is the ~610Ma age peak a persistent Cadomian magmatic inheritance or the key to unravel its Pan-African basement?

This work assessed the age distribution of Cadomian/Pan-African orogenic events (550-590 and 605-790Ma, respectively) in several zones of Iberian Massif by means of detrital and inherited zircon analysis compilation. Detrital zircon age spectra show that throughout the late Neoproterozoic-to-Early Ordovician era (~120Ma sedimentary record), the main systematic peak occurs at ~610Ma, followed by peaks at typical Cadomian ages (~590-550Ma). Inherited zircons incorporated in Cambrian-to-Lower Ordovician igneous rocks show typical Cadomian ages (~590-550Ma) but, once again, a remarkably consistent Pan-African ~610Ma peak occurs. In accordance with compiled zircon data and taking into account the evidence of North African peri-cratonic inliers, Ediacaran (~610Ma) zircons incorporated in Paleozoic magmas provide indirect evidence of Pan-African magmatism, suggesting that these magmas and synorogenic sediments are likely to constitute the cryptic stratigraphic infrastructure of most of the Iberian Massif. The main source of ~610Ma inherited zircons may be the lateral chrono-equivalents of the Saghro and Bou Salda-M`Gouna Groups (Anti-Atlas, Morocco) and/or coeval igneous rocks from West African Craton or Trans-Sahara Belt, emplaced at a stratigraphic level below the late Ediacaran sediments of the Ossa Morena Zone and the Central Iberian Zone. Assuming that the Iberian crust is a fragment of the Pan-African orogen, a relative paleoposition situated between the West African Craton and the Trans-Saharan Belt during the Late Neoproterozoic is proposed. The closed-system behaviour of Stenian-Tonian detrital zircon ages in the Trans-Sahara Belt suggests that this mega-cordillera acted as a barrier, in paleogeographic terms, to separating the Sahara Metacraton from Iberia. In Iberia, the opening of the system to Stenian-Tonian detrital zircon during the Ordovician indicates that, at that time, the Trans-Saharan Belt had already become a vast peneplain, which favoured a large drainage system with a long-distance transport mechanism that fed the passive continental margins

Cadomian/Pan-African consolidation of the Iberian Massif assessed by its detrital and inherited zircon populations: is the ~610Ma age peak a persistent Cadomian magmatic inheritance or the key to unravel its Pan-African basement?

This work assessed the age distribution of Cadomian/Pan-African orogenic events (550-590 and 605-790Ma, respectively) in several zones of Iberian Massif by means of detrital and inherited zircon analysis compilation. Detrital zircon age spectra show that throughout the late Neoproterozoic-to-Early Ordovician era (~120Ma sedimentary record), the main systematic peak occurs at ~610Ma, followed by peaks at typical Cadomian ages (~590-550Ma). Inherited zircons incorporated in Cambrian-to-Lower Ordovician igneous rocks show typical Cadomian ages (~590-550Ma) but, once again, a remarkably consistent Pan-African ~610Ma peak occurs. In accordance with compiled zircon data and taking into account the evidence of North African peri-cratonic inliers, Ediacaran (~610Ma) zircons incorporated in Paleozoic magmas provide indirect evidence of Pan-African magmatism, suggesting that these magmas and synorogenic sediments are likely to constitute the cryptic stratigraphic infrastructure of most of the Iberian Massif. The main source of ~610Ma inherited zircons may be the lateral chrono-equivalents of the Saghro and Bou Salda-M`Gouna Groups (Anti-Atlas, Morocco) and/or coeval igneous rocks from West African Craton or Trans-Sahara Belt, emplaced at a stratigraphic level below the late-Ediacaran sediments of the Ossa Morena Zone and the Central Iberian Zone. Assuming that the Iberian crust is a fragment of the Pan-African orogen, a relative paleoposition situated between the West African Craton and the Trans-Saharan Belt during the Late Neoproterozoic is proposed. The closed-system behaviour of Stenian-Tonian detrital zircon ages in the Trans-Sahara Belt suggests that this mega-cordillera acted as a barrier, in paleogeographic terms, separating the Sahara Metacraton from Iberia. In Iberia, the opening of the system to Stenian-Tonian detrital zircons during the Ordovician indicates that, at that time, the Trans-Saharan Belt had already become a vast peneplain, which favoured a large drainage system with a long-distance transport mechanism that fed the passive continental margins

is the ~610Ma age peak a persistent Cadomian magmatic inheritance or the key to unravel its Pan-African basement?

Publisher Copyright: © M. Chichorro, A.R. Solá, T.M. Bento dos Santos, J. Lains Amaral, L. Crispim, 2022.This work assessed the age distribution of Cadomian/Pan-African orogenic events (550-590 and 605-790Ma, respectively) in several zones of Iberian Massif by means of detrital and inherited zircon analysis compilation. Detrital zircon age spectra show that throughout the late Neoproterozoic-to-Early Ordovician era (~120Ma sedimentary record), the main systematic peak occurs at ~610Ma, followed by peaks at typical Cadomian ages (~590-550Ma). Inherited zircons incorporated in Cambrian-to-Lower Ordovician igneous rocks show typical Cadomian ages (~590-550Ma) but, once again, a remarkably consistent Pan-African ~610Ma peak occurs. In accordance with compiled zircon data and taking into account the evidence of North African peri-cratonic inliers, Ediacaran (~610Ma) zircons incorporated in Paleozoic magmas provide indirect evidence of Pan-African magmatism, suggesting that these magmas and synorogenic sediments are likely to constitute the cryptic stratigraphic infrastructure of most of the Iberian Massif. The main source of ~610Ma inherited zircons may be the lateral chrono-equivalents of the Saghro and Bou Salda-M`Gouna Groups (Anti-Atlas, Morocco) and/or coeval igneous rocks from West African Craton or Trans-Sahara Belt, emplaced at a stratigraphic level below the late-Ediacaran sediments of the Ossa Morena Zone and the Central Iberian Zone. Assuming that the Iberian crust is a fragment of the Pan-African orogen, a relative paleoposition situated between the West African Craton and the Trans-Saharan Belt during the Late Neoproterozoic is proposed. The closed-system behaviour of Stenian-Tonian detrital zircon ages in the Trans-Sahara Belt suggests that this mega-cordillera acted as a barrier, in paleogeographic terms, to separating the Sahara Metacraton from Iberia. In Iberia, the opening of the system to Stenian-Tonian detrital zircon during the Ordovician indicates that, at that time, the Trans-Saharan Belt had already become a vast peneplain, which favoured a large drainage system with a long-distance transport mechanism that fed the passive continental margins.publishersversionpublishe

Cadomian/Pan-African consolidation of the Iberian Massif assessed by its detrital and inherited zircon populations: is the similar to 610Ma age peak a persistent Cadomian magmatic inheritance or the key to unravel its Pan-African basement?

ABSTRACT: This work assessed the age distribution of Cadomian/Pan-African orogenic events (550-590 and 605-790Ma, respectively) in several zones of Iberian Massif by means of detrital and inherited zircon analysis compilation. Detrital zircon age spectra show that throughout the late Neoproterozoic-to-Early Ordovician era (similar to 120Ma sedimentary record), the main systematic peak occurs at similar to 610Ma, followed by peaks at typical Cadomian ages (similar to 590-550Ma). Inherited zircons incorporated in Cambrian-to-Lower Ordovician igneous rocks show typical Cadomian ages (similar to 590-550Ma) but, once again, a remarkably consistent Pan-African similar to 610Ma peak occurs. In accordance with compiled zircon data and taking into account the evidence of North African peri-cratonic inliers, Ediacaran (similar to 610Ma) zircons incorporated in Paleozoic magmas provide indirect evidence of Pan-African magmatism, suggesting that these magmas and synorogenic sediments are likely to constitute the cryptic stratigraphic infrastructure of most of the Iberian Massif. The main source of similar to 610Ma inherited zircons may be the lateral chrono-equivalents of the Saghro and Bou Salda-M'Gouna Groups (Anti-Atlas, Morocco) and/or coeval igneous rocks from West African Craton or Trans-Sahara Belt, emplaced at a stratigraphic level below the late-Ediacaran sediments of the Ossa Morena Zone and the Central Iberian Zone. Assuming that the Iberian crust is a fragment of the Pan-African orogen, a relative paleoposition situated between the West African Craton and the Trans-Saharan Belt during the Late Neoproterozoic is proposed. The closed-system behaviour of Stenian-Tonian detrital zircon ages in the Trans-Sahara Belt suggests that this mega-cordillera acted as a barrier, in paleogeographic terms, to separating the Sahara Metacraton from Iberia. In Iberia, the opening of the system to Stenian-Tonian detrital zircon during the Ordovician indicates that, at that time, the Trans-Saharan Belt had already become a vast peneplain, which favoured a large drainage system with a long-distance transport mechanism that fed the passive continental margins.info:eu-repo/semantics/publishedVersio

Cadomian/Pan-African consolidation of the Iberian Massif assessed by its detrital and inherited zircon populations : is the ~610Ma age peak a persistent Cadomian magmatic inheritance or the key to unravel its Pan-African basement?

Acknowledgement. Martim Chichorro is grateful for the funding provided by GeoBioTec (UIDB/04035/2020). We acknowledge the support of Portuguese Fundação para a Ciência e a Tecnologia (FCT) through PhD grant SFRH/BD/138791/2018 to João Lains Amaral. This work was funded by the FCT I.P./MCTES through national funds (PIDDAC) - UIDB/50019/2020 to Telmo M. Bento dos Santos via IDL - Instituto Dom Luiz. Geopark Naturtejo is also gratefully acknowledged for long-term logistic support. Insightful comments, suggestions and corrections provided by Josep Maria Casas and an anonymous reviewer are kindly acknowledged. Finally, the authors would like to express their gratitude to the Guest Editor.This work assessed the age distribution of Cadomian/Pan-African orogenic events (550-590 and 605-790Ma, respectively) in several zones of Iberian Massif by means of detrital and inherited zircon analysis compilation. Detrital zircon age spectra show that throughout the late Neoproterozoic-to-Early Ordovician era (~120Ma sedimentary record), the main systematic peak occurs at ~610Ma, followed by peaks at typical Cadomian ages (~590-550Ma). Inherited zircons incorporated in Cambrian-to-Lower Ordovician igneous rocks show typical Cadomian ages (~590-550Ma) but, once again, a remarkably consistent Pan-African ~610Ma peak occurs. In accordance with compiled zircon data and taking into account the evidence of North African peri-cratonic inliers, Ediacaran (~610Ma) zircons incorporated in Paleozoic magmas provide indirect evidence of Pan-African magmatism, suggesting that these magmas and synorogenic sediments are likely to constitute the cryptic stratigraphic infrastructure of most of the Iberian Massif. The main source of ~610Ma inherited zircons may be the lateral chrono-equivalents of the Saghro and Bou Salda-M'Gouna Groups (Anti-Atlas, Morocco) and/or coeval igneous rocks from West African Craton or Trans-Sahara Belt, emplaced at a stratigraphic level below the late-Ediacaran sediments of the Ossa Morena Zone and the Central Iberian Zone. Assuming that the Iberian crust is a fragment of the Pan-African orogen, a relative paleoposition situated between the West African Craton and the Trans-Saharan Belt during the Late Neoproterozoic is proposed. The closed-system behaviour of Stenian-Tonian detrital zircon ages in the Trans-Sahara Belt suggests that this mega-cordillera acted as a barrier, in paleogeographic terms, separating the Sahara Metacraton from Iberia. In Iberia, the opening of the system to Stenian-Tonian detrital zircons during the Ordovician indicates that, at that time, the Trans-Saharan Belt had already become a vast peneplain, which favoured a large drainage system with a long-distance transport mechanism that fed the passive continental margins

Emaranhamento de modos e de partículas em sistemas de partículas indistinguíveis: abordagem do Lo Franco e Compagno e estados totalmente simétricos

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2018.Nessa dissertação são apresentadas medidas de emaranhamento de partículas distinguíveis e indistinguíveis, com ênfase nesta última. As medidas de emaranhamento de partículas indistinguíveis são comparadas com uma abordagem recente devido a Lo Franco e Compagno (LFC). Mostra-se que a principal diferença operacional entre o método de LFC e o método de correlações quânticas está na maneira como se realiza o traço parcial sobre o subsistema, o que se deve ao conceito de medida local introduzido no método de LFC. Além disso, é feita uma comparação entre emaranhamento de modos e emaranhamento de partículas indistinguíveis com a abordagem de LFC. Um outro aspecto explorado nesse trabalho é o emaranhamento bipartido em estados puros totalmente simétricos, ou seja, estados que são escritos como uma combinação linear de estados de Dicke com número fixo de partículas. Mostra-se nesse caso que o emaranhamento de modos e o emaranhamento de partículas indistinguíveis são iguais. Tais estados totalmente simétricos são autoestados do hamiltoniano de Lipkin-Meshkov-Glick. Por fim, observa-se que o emaranhamento bipartido do estado fundamental desse modelo serve como parâmetro de ordem para assinalar a transição de fase quântica existente.Abstract : In this dissertation are presented measures of entanglement of distinguishable and indistinguishable particles, with especial emphasis on the later. The measures of entanglement of indistinguishable particles are compared with a recent approach due to Lo Franco and Compagno (LFC). It is shown that the main operational difference between LFC and quantum correlations methods relies on the way in which the partial trace over the subsystem is performed, originally from the concept of local measurement introduced by LFC method. In addition, the LFC method is compared to entanglement of indistinguishable particles and entanglement of modes. Another aspect explored in this work is the bipartite entanglement in totally symmetric pure states, namely, states that are written as linear combination of Dicke states with fixed number of particles. It is shown in this case that the entanglement of modes and the entanglement of indistinguishable particles are equal. Such totally symmetric states are eigenstates of the Lipkin-Meshkov-Glick Hamiltonian. Finally, it is observed that the bipartite entanglement of the ground state of this model can be used as an order parameter to signal the existing quantum phase transition

Correlações genuínas multipartidas em sistemas invariantes por permutações de partículas

Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2022.Sistemas invariantes por permutações de partículas estão presentes em muitos modelos físicos, tais como o modelo Lipkin-Meshkov-Glick (LMG), modelo de Dicke, modelo do Cristal Temporal de Fronteira (CTF), entre outros. Esses sistemas possuem fenômenos críticos nos quais o conhecimento da correlação desempenha um papel fundamental, principalmente para descrever Transição de Fase Quântica (TFQ). Geralmente, as correlações, como emaranhamento e discórdia quântica, são estudadas entre bipartições, ou entre todos os N subsistemas para estados puros. A questão se k partículas quaisquer estão genuinamente correlacionadas é menos restrita e mais informativa, sendo abordada muito recentemente na literatura. Assim, o objetivo desta tese é estudar as correlações genuínas k-partidas em dois sistemas invariantes por permutação de partículas, o modelo LMG e o modelo CTF. Além disso, investigamos a presença de emaranhamento genuíno k-partido no modelo CTF, uma vez que o emaranhamento é um recurso importante em tarefas quânticas. O primeiro modelo estudado é o modelo LMG, um modelo que pode ser representado por N spins 1/2 com interações de alcance infinito, com um campo magnético sendo aplicado transversalmente à cadeia de spins. Nesse modelo, verificamos que as ordens de Correlações Genuínas Multipartidas (CGM) assinalam a TFQ de segunda ordem, tal como é conhecido que outras medidas de correlações, como emaranhamento e discórdia quântica, também o fazem. Além disso, notamos que as correlações genuínas k-partidas apresentam um comportamento não trivial com a variação da ordem de correlação. A explicação desse comportamento está ligada ao número de partições dos estados produto utilizados para calcular CGM. Além disso, calculamos através do Escalonamento de Tamanho Finito (ETF) os expoentes críticos para várias ordens de CGM, observando que os expoentes estão num intervalo de [-1/2,1/2] e conjecturamos que todas as ordens estão neste intervalo. O segundo modelo analisado nesta tese é o modelo do CTF, um estado da matéria de não-equilíbrio em contato com um ambiente que quebra a simetria de translação temporal. Mostramos que as CGM captam as oscilações da fase CTF e com análises de escalonamento das correlações totais, constatamos também que o tempo de vida das oscilações diverge no limite termodinâmico, no qual emerge o fenômeno do CTF. Além disso, no Estado Estacionário de Não Equilíbrio (EENE) observamos que as CGM são extensivas com número de partículas na fase CTF, enquanto que são subextensivas na fase ferromagnética. As CGM contam as correlações clássicas e quânticas na medida, então para saber se há emaranhamento genuíno k-partido nas duas fases do modelo, utilizamos a Informação quântica de Fisher (IQF) como testemunha. Verificamos que há emaranhamento genuíno k-partido na fase ferromagnética, contudo, nada pode ser dito na fase CTF na qual a IQF não testemunha emaranhamento genuíno k-partido. Através de uma análise de mapa de cores da matriz de densidade do EENE, mostramos que na fase CTF o estado se aproxima de um estado superradiante, que não é emaranhado, porém tem uma grande quantidade de CGM.Abstract: Systems invariant by particle permutations are present in many physical models, such as LMG model, Dicke model, CTF model, among others. These systems possess critical phenomena where the knowledge of correlation plays a key role, mainly to describe TFQ. Generally, the correlations, such as with entanglement entropy and quantum discord, are studied between bipartitions, or among all the subsystems for pure states. The question if k-particles are genuinely correlated is less restricted and more informative, being addressed very recently in the literature. So, the objective of this thesis is to study the genuine k-partite correlations in two systems invariant by particle permutation, the LMG model and the CTF model. In addition, we investigate the presence of genuine k-partite entanglement in the CTF model, since entanglement is an important resource in quantum tasks. The first model studied is the LMG model, a model that can be represented by N spins 1/2 with infinite range interactions, with a magnetic field applied transversely to the spins chain. In this model, we verify that all orders of CGM signal the second order TFQ, as other measures of correlations, such as entanglement and quantum discord, also do. Additionally, we notice that the genuine k-partite correlations present a non-trivial behavior with the variation of the correlation order. The explanation of this behavior is linked to the number of partitions of the product state used to calculate CGM. Furthermore, we calculate through ETF the critical exponents for several orders of CGM, observing that the exponents are in an interval [-1/2,1/2] and we conjecture that all orders of CGM are in this interval. The second model analyzed in this thesis is the CTF model, a non-equilibrium state of matter in contact with an environment that breaks time translation symmetry. We show that the CGM capture the oscillations of the CTF phase and with scaling analyses of total correlations we also verify that the lifetime of the oscillations diverges in the thermodynamic limit, where the CTF phenomenon emerges. Moreover, in the EENE we observe that the CGM are extensive with particle number in the CTF phase, while they are subextensive in the ferromagnetic phase. The CGM count the classical and quantum correlations in the measure, then to know if there are genuine k-partite entanglement in the phases of the model, we use IQF as a witness. We find that there are genuine k-partite entanglement in the ferromagnetic phase, however, nothing can be said in the CTF phase where the IQF does not witness genuine k-partite entanglement. Through a color map analyses of the density matrix of the EENE, we show that in the CTF phase the state approaches a superradiant state, which is not entangled but it has a great amount of CGM

O Ediacárico-Ordovícico de Penha Garcia - Salvaterra do Extremo (Sudoeste da Zona Centro-Ibérica - ZCI). Reconstrução Paleogeográfica e Geodinâmica e Contribuição para a conservação e desenvolvimento sustentável do Geopark Naturtejo

Tese de Mestrado, Mestrado em Geologia (Geoquímica, Mineralogia e Petrologia), 2023, Universidade de Lisboa, Faculdade de CiênciasA zona de estudo situa-se a SW da ZCI, na região de Penha Garcia-Salvaterra do Extremo. Encontra-se enquadrada por metassedimentos ediacáricos, pertencentes ao Grupo das Beiras, que em Penha Garcia, contactam discordantemente com as formações ordovícicas adjacentes. Os objetivos deste trabalho recaem sobre a análise geocronológica de zircões detríticos das formações ediacáricas e ordovícicas aflorantes, bem como a datação e análise da geoquímica elementar de alguns plutões e diques magmáticos que intruem os metassedimentos ediacáricos. Os metagrauvaques, correspondentes às Fm. Caneiro e Cabeço das Popas, obtiveram as seguintes IDMs: 555 ± 8 Ma e 591 ± 6 Ma. A Fm. Cabeço das Popas é intruída por um dique félsico porfiroide com uma natureza trondhjemítica. A idade obtida para este foi de 585 ± 10 Ma, a qual é bastante inédita. Os DDPs dos metagrauvaques evidenciam picos ediacáricos e criogénicos proeminentes, os quais apontam para um ambiente de arco magmático próximo do WAC, com algumas influências do SM. O meta-arenito da Fm. Serra Gorda e os quartzitos da Fm. Penha Garcia, marcam o estabelecimento de uma margem passiva. As IDMs cifram-se em 489 ± 10 Ma, 568 ± 7 Ma e 537 ± 9 Ma, respetivamente, apontando para uma fonte proximal para a Fm. Serra Gorda. Os seus DDPs demonstram uma manutenção dos picos ediacáricos e criogénicos, contudo o incremento significativo do pico na transição Sténico-Tónico poderá corresponder a uma drenagem provinda do SMC ou do ANS. Dos quartzo-dioritos e diorito de Batão de Baixo amostrados, apenas um quartzo-diorito foi datado. A idade aos 486 ± 4 Ma, corresponde a mais uma expressão do magmatismo cambro-ordovícico. A geoquímica elementar permitiu concluir que o magmatismo de Batão de Baixo é ligeiramente menos evoluído que do Ollo de Sapo e da Urra e tal poderá ser justificado pela atuação de diferentes taxas de fusão em porções crustais da mesma natureza.The study area is located in the SW of the CIZ, in Penha Garcia-Salvaterra do Extremo region. It is framed by ediacarian metasediments belonging to the Beiras Group, which in Penha Garcia are in discordant contact with the adjacent ordovician formations. The objectives of this work are the geochronological analysis of detrital zircons from the outcropping Ediacarian and Ordovician formations, as well as the dating and analysis of the elemental geochemistry of some magmatic plutons and lode that intrude the ediacarian metasediments. The metagreywackes corresponding to Caneiro and Cabeço das Popas Fm., obtained the following MDAs: 555 ± 8 My and 591 ± 6 My. The Cabeço das Popas Fm. is intruded by a porphyroid felsic dike with a trondhjemitic nature. The age obtained was 585 ± 10 My, which is quite unprecedented. The PDPs of the metagreywackes show prominent ediacarian and cryogenic peaks, which point to a magmatic arc environment close to the WAC, with some SM influences. The meta-arenite of Serra Gorda Fm. and the quartzites of Penha Garcia Fm., mark the establishment of a passive margin. The MDAs are 489 ± 10 My, 568 ± 7 My and 537 ± 9 My, respectively, pointing to a proximal source for Serra Gorda Fm.. Their PDPs show a maintenance of the ediacarian and cryogenic peaks, however the significant increase in the peak at the Stenic-Tonic transition may correspond to drainage from SMC or ANS. Of the sampled quartz-diorites and diorite from Batão de Baixo, only one quartz-diorite has been dated. The age at 486 ± 4 My corresponds to yet another expression of cambrian-ordovician magmatism. The elemental geochemistry allowed to conclude that the magmatism of Batão de Baixo is slightly less evolved than that of Ollo de Sapo and Urra and this could be explained by different melting rates in crustal portions of the same nature