Strain partitioning in transpressive shear zones in the southern branch of the Variscan Ibero-Armorican Arc

The Torre de Moncorvo region (NE Portugal) is a key-sector of the Autochthon Domain of the Iberian Terrane. The region experienced Variscan deformation in the southern branch of the Ibero-Armorican Arc wherein the early structures (of Upper Devonian age - D1) denotes the establishment of an heterogeneous sinistral transpressive regime. This regime was also responsible for the development of large-scale left-lateral shear zones whose direction is subparallel to major folds. Finite strains analyses were carried out in the Torre de Moncorvo region using the normalised Fry method on different strain markers: (1) distribution of detrital quartz grains in quartzite rocks of Arenigian-Lanvirnian age; (2) arrangement of oolites in discontinuous Ordovician-Silurian ironstone horizons; (3) the rotation experienced by Skolithos preserved in Lower Ordovician metasedimentary clastic rocks. The results obtained indicate the predominance slightly prolate strain ellipsoids predominate. Nevertheless, the variation of their orientation around mesoscopic folds emphasises the role of strain partitioning in transpressive regime, suggesting that different folding mechanisms were active in the course of the same deformation phase. For the studied cases, tangential longitudinal strain and flexural shear combined with regional sinistral shear seem to be the most common mechanisms of folding. Some of these three-dimensional theoretical models for strain patterns in folds could be used in other regions, where a transpressive regime is inferred

Geodynamics of Iberia, supercontinent cycles and metallogenic implications

The geodynamic evolution of Iberia since Neoproterozoic times illustrates the progression of the two last supercontinent cycles and the probable path to the next one. The Pangaea supercontinent cycle shows features of Hercynian- and Alpine-type orogens both in terms of tectonothermal regime and geometry/kinematics. The combination of inherited and neo-formed components, namely those able to sustain long-lasting and/or recurrent rejuvenation of heat and mass advection in the lithosphere, explain the complexity and singula

Tectonoestratigrafia do Terreno Ibérico no sector Tomar-Sardoal-Ferreira do Zêzere e relações com o Terreno Finisterra

A cartografia geológica da região Tomar-Sardoal-Ferreira do Zêzere permitiu individualizar sucessões tectono-estratigráficas em dominíos da Zona Centro-Ibérica (ZCI) e da Zona Ossa Morena (ZOM) que anteriormente eram considerados apenas como ZOM, separadas entre si pelo carreamento de Ortiga-Torrão. A sucessão centro-ibérica monometamórfica, datada do Neoproterozóico ao Silúrico (?), encontra-se numa estrutura triangular e é constituída por unidades tipicas do Paleozóico/Neoproterozóico da ZCI. Na ZOM foram estabelecidas duas sucessões polimetamórficas nas regiões do Sardoal e de Serra (Tomar), ambas datadas no geral do Neoproterozóico. A primeira constitui um autóctone relativo e a outra, alóctone; ambas são compostas por unidades deformadas da crosta cadomiana. A continuidade das sucessões tectono-estratigráficas antecedentes do Terreno Ibérico e do carreamento que as limita é interrompida a E pela Zona de Cisalhamento Porto-Tomar-Ferreira do Alentejo (N-S e cinemática direita), a ocidente da qual se encontra o Terreno Finisterra

Geodynamic evolution of the SW Europe Variscides

Abstract The early evolution of SW Europe Variscides started by opening of the Rheic ocean at 500 Ma, splitting Avalonia from Armorica/Iberia. Subduction on the SE side of Rheic generated the Paleotethys back-arc basin (430–390 Ma, splitting Armorica from Iberia), with development of Porto-Tomar-Ferreira do Alentejo (PTFA) dextral transform defining the boundary between continental Armorica and Finisterra microplate to the W. Obduction of Paleotethys was followed by Armorica/Iberia collision and emplacement of NW Iberian Allochthonous Units at 390–370 Ma, whereas toward the west of PTFA, there was antithetic ophiolite obduction (Beja-Acebuches and Rheic ophiolites plus Finisterra continental slices) on top of Ossa-Morena Zone, with simultaneous development of eclogites and orogenic magmatism under a flake–double wedge tectonic regime. Continued convergence (<370 Ma) proceeded by intracontinental deformation, with progressive tightening of the Ibero-Armorican Arc through dextral transpression on the Cantabrian Indentor, from Iberia to Armorica. The proposed model is discussed at the light of the driving mechanism of ‘‘soft plate tectonics.’

MAMMALS IN PORTUGAL : A data set of terrestrial, volant, and marine mammal occurrences in P ortugal

Mammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, open net fishing, climate change, and prey depletion formarine mammals. Mammals play a key role in maintaining ecosystems func-tionality and resilience, and therefore information on their distribution is cru-cial to delineate and support conservation actions. MAMMALS INPORTUGAL is a publicly available data set compiling unpublishedgeoreferenced occurrence records of 92 terrestrial, volant, and marine mam-mals in mainland Portugal and archipelagos of the Azores and Madeira thatincludes 105,026 data entries between 1873 and 2021 (72% of the data occur-ring in 2000 and 2021). The methods used to collect the data were: live obser-vations/captures (43%), sign surveys (35%), camera trapping (16%),bioacoustics surveys (4%) and radiotracking, and inquiries that represent lessthan 1% of the records. The data set includes 13 types of records: (1) burrowsjsoil moundsjtunnel, (2) capture, (3) colony, (4) dead animaljhairjskullsjjaws, (5) genetic confirmation, (6) inquiries, (7) observation of live animal (8),observation in shelters, (9) photo trappingjvideo, (10) predators dietjpelletsjpine cones/nuts, (11) scatjtrackjditch, (12) telemetry and (13) vocalizationjecholocation. The spatial uncertainty of most records ranges between 0 and100 m (76%). Rodentia (n=31,573) has the highest number of records followedby Chiroptera (n=18,857), Carnivora (n=18,594), Lagomorpha (n=17,496),Cetartiodactyla (n=11,568) and Eulipotyphla (n=7008). The data setincludes records of species classified by the IUCN as threatened(e.g.,Oryctolagus cuniculus[n=12,159],Monachus monachus[n=1,512],andLynx pardinus[n=197]). We believe that this data set may stimulate thepublication of other European countries data sets that would certainly contrib-ute to ecology and conservation-related research, and therefore assisting onthe development of more accurate and tailored conservation managementstrategies for each species. There are no copyright restrictions; please cite thisdata paper when the data are used in publications.info:eu-repo/semantics/publishedVersio

Mammals in Portugal: a data set of terrestrial, volant, and marine mammal occurrences in Portugal

Mammals are threatened worldwide, with ~26% of all species being included in the IUCN threatened categories. This overall pattern is primarily associated with habitat loss or degradation, and human persecution for terrestrial mammals, and pollution, open net fishing, climate change, and prey depletion for marine mammals. Mammals play a key role in maintaining ecosystems functionality and resilience, and therefore information on their distribution is crucial to delineate and support conservation actions. MAMMALS IN PORTUGAL is a publicly available data set compiling unpublished georeferenced occurrence records of 92 terrestrial, volant, and marine mammals in mainland Portugal and archipelagos of the Azores and Madeira that includes 105,026 data entries between 1873 and 2021 (72% of the data occurring in 2000 and 2021). The methods used to collect the data were: live observations/captures (43%), sign surveys (35%), camera trapping (16%), bioacoustics surveys (4%) and radiotracking, and inquiries that represent less than 1% of the records. The data set includes 13 types of records: (1) burrows | soil mounds | tunnel, (2) capture, (3) colony, (4) dead animal | hair | skulls | jaws, (5) genetic confirmation, (6) inquiries, (7) observation of live animal (8), observation in shelters, (9) photo trapping | video, (10) predators diet | pellets | pine cones/nuts, (11) scat | track | ditch, (12) telemetry and (13) vocalization | echolocation. The spatial uncertainty of most records ranges between 0 and 100 m (76%). Rodentia (n =31,573) has the highest number of records followed by Chiroptera (n = 18,857), Carnivora (n = 18,594), Lagomorpha (n = 17,496), Cetartiodactyla (n = 11,568) and Eulipotyphla (n = 7008). The data set includes records of species classified by the IUCN as threatened (e.g., Oryctolagus cuniculus [n = 12,159], Monachus monachus [n = 1,512], and Lynx pardinus [n = 197]). We believe that this data set may stimulate the publication of other European countries data sets that would certainly contribute to ecology and conservation-related research, and therefore assisting on the development of more accurate and tailored conservation management strategies for each species. There are no copyright restrictions; please cite this data paper when the data are used in publications

News sentiment e os investimentos em marketing

O presente trabalho estuda a relação entre investimentos e a perceção que a empresa gera no mercado, neste último caso medida por news sentiment. É analisada a relação entre investimentos em publicidade de 299 instituições financeiras da Organização para a Cooperação e Desenvolvimento Económico (OCDE) nos últimos cinco anos (2013-2017) e o news sentiment. Esta relação é económica e estatisticamente significativa, relevando que os investimentos em publicidade são uma função crescente da perceção que os consumidores e o público em geral formam sobre as instituições financeiras.O estudo inovador e os seus resultados, confirmados em testes de robustez, deverão interessar os gestores de marketing, acionistas e público em geral.This dissertation studies the relationship between advertising and the perception that market ascribes to the firm. We analyze the advertising expense of 299 financial institutions domiciled in OECD countries, spanning the last 5 years (2013 to 2017), and its relationship with news sentiment. This relationship is economically and statistically significant. Advertising expense increases with positive scores of news sentiment, the latter expressing the perception consumers and people at large ascribe financial institutions. This novel study and its results should interest marketing managers and shareholders, as well as people at large

Contribuição para o conhecimento das unidades tectono-estratigráficas do Terreno Finisterra na região de Tomar

A cartografia geológica do Terreno Finisterra, no sector localizado a E de Tomar, permitiu individualizar uma sucessão tectono-estratigráfica de idade neoproterozóica, que é constituída da base para o topo por: Complexo Gnaisso-Migmatítico de S. Pedro de Tomar, Metagrauvaques e Micaxistos de Junqueira e Ortognaisses de Couço dos Pinheiros. É uma sucessão polimetamórfica, não correlacionável com unidades do Terreno Ibérico. Do ponto de vista tectónico, esta sucessão foi afectada, por fases de deformação Cadomiana, responsáveis pela génese de um bandado metamórfico e xistosidade de orientação NE-SW a E-W, e, posteriormente, por duas fases de deformação varisca. O Terreno Finisterra é limitado a E pela Zona de Cisalhamento Porto-Tomar-Ferreira do Alentejo, de orientação geral N-S e de cinemática direita, que interrompe a continuidade das unidades do Terreno Ibérico e é interpretada com uma estrutura inter-placa do tipo transformante