Paulo Sá Caetano

• Professor
• Universidade NOVA de Lisboa

The city of Setúbal is situated 30 km southeast of Lisbon, Portugal, and has experienced significant impacts from various earthquakes, including the one that occurred in 1858. This earthquake serves as an example of a nearby earthquake that caused significant social and structural damage, reaching a intensity of IX-VIII on the Modified Mercalli sca...

This work aims to develop a simplified approach to assess slope stability in open-pit marble quarries. Each site is subject to field investigation to determine the relevant rock mass properties, using the scanline sampling technique to list the mechanic and geometric properties of the intact rock and rock mass discontinuities and collect samples fo...

Understanding local accumulation patterns of microplastics in subtidal sediments is crucial to assess how available such particles are for ingestion by benthic feeders and to identify the potential pollution sources in the region upon which is urgent to act. The coastal urban centers of Setúbal and Sesimbra (Portugal) and the multiple activities ta...

Setúbal is a county located in the Lisbon metropolitan area (Portugal) which has been hit by historical earthquakes that were responsible for high social and economic losses. The 1858 earthquake, with an epicentre located offshore just south of the Setúbal region, is a good example of an earthquake that caused high damage (IX-VIII MM) in this count...

"The use of local toponyms is common practice in the scientific description of new species. In a historical perspective of palaeontological taxonomy, this use of toponyms substantially enriches the existing nomenclature and allows for a more effective geographical contextualization. Since the mid-XIX century, many naturalists have visited the Azore...

Resumo: Comunicar Ciências Naturais ao analisar obras de coleções de Arte, quer no contexto de uma sala de aula, quer no de um museu, promove o conhecimento sobre estes assuntos e a compreensão de acontecimentos com causas naturais que frequentemente afetam as populações. Com esta interação espera-se conseguir motivar públicos diversos a procurarem...

Pyrolysis chars derived from rice wastes were chemically activated and used in W(VI) oxyanion adsorption assays in synthetic and mining wastewaters. For comparison purposes, a commercial activated carbon (CAC) was also used. Different experimental conditions were tested in the adsorption assays: solid/liquid ratio (S/L), initial pH, contact time, a...

The Portuguese maritime epopee was one of the main historical facts of European Renaissance, enhancing the geographic discovery of the World, with its diversity of exotic cultures and natural environments. After being discovered during the XV century, the Atlantic CPLP (Community of Portuguese Language Countries) islands soon provided the first con...

Approximately 80% to 90% of the total stone extracted by the ornamental stone industry in the Marble Zone (Alentejo, South Portugal) is wasted and discarded in the numerous quarry waste rock piles across the region. This enormous amount of marble waste, representing millions of tons of stone each year, mostly with an expected high chemical composit...

The use of local toponyms is common practice in the scientific description of new species. In a historical perspective of palaeontological taxonomy, this use of toponyms substantially enriches the existing nomenclature and allows for a more effective geographical contextualization. Since the mid-XIX century, many naturalists have visited the Azores...

Sedimentological and petrographic studies of the Haymana Formation sandstones identify a submarine fan in the Haymana Basin. This study is confined to outcrop samples from the submarine-fan sandstones (the L1, L2, and L3 sections) and focuses on documentation of the petrographic characteristics of and depositional controls on reservoir properties o...

Earthquakes were the natural phenomena that caused the largest number of casualties and economic losses between 1996 and 2015. During this period 1.35 million people were killed due to natural disasters, of which about 55% were victims of earthquakes (500,000) and tsunamis (250,000) (UNISDR / CRED 2016). Over the last 100 years there have been seve...

A Engenharia Geoambiental na FCT - Velhos e Novos Desafios. Faz uma resenha do histório e desenvolvimento da Engenharia Geoambiental no curso de Engenharia Geológica da FCT e apresenta temas emergentes para a área de intervenção da Engenharia Geoambiental, nomeadamente a avaliação e gestão do risco associado a acidentes nucleares, com base no caso...

Barreiro is an urban county located in the Lisbon metropolitan area (Portugal) with several hazardous industrial facilities. This area shows a moderate seismicity, but due to its geotectonic location, it has been subject in the past to earthquakes responsible for high social and economic losses. Earthquakes that occurred in 1531 (Mw ≈ 6.6), 1755 (M...

The study was carried out on samples of sandstone-shale outcrops taken from 3 locations in Haymana Formation around Haymana in Tuz Lake Basin. XRD analyses were carried out on all clay content-rich specimens selected during the petrographic studies at the University of Nova de Lisboa (Portugal) in the form of all rock and detailed clay analyses. In...

The objective of this study was to establish a methodology for building a 3D geological model of a mineral vein deposit, encompassing morphology and wolframite content. The available data set includes stope data (vein thickness and wolframite quantity) and borehole data (vein thickness and wolframite modal classes). The data captured from boreholes...

The Upper Cretaceous Haymana Formation is exposed in the Haymana vicinity in the southwest of Ankara (Salt Lake Basin), Turkey. In the Haymana vicinity, two major units are well exposed: Mesozoic and Cenozoic units. Sandstones and shales of Haymana Formation is focused on in the study. In the study area basement is composed of Trias and Jura clasti...

Resumo: A inclusão de avaliações de risco de instabilidade em arribas sobre as zonas urbanas de Portugal nas políticas de Ordenamento do Território e Urbanismo generalizou-se com a criação dos Planos de Ordenamento da Orla Costeira (POOC). Esta preocupação reflete a crescente tomada de consciência relativamente ao risco induzido por instabilizações...

A análise do risco de quedas de blocos constitui tarefa delicada devido à dificuldade em prever, com exactidão, a trajectória de um bloco rochoso em queda. No entanto, qualquer que seja a génese da rotura, a avaliação de áreas de propagação pode derivar de modelos friccionais simples, assumindo-se que o processo de deslocamento e paragem do bloco é...

The proposed methodology was developed taking in to account that the data are derived from two different sources, drillholes and stopes, with different sampling sizes and reported information, exhibiting clear spatial bias. These facts deem unfeasible the use of traditional straightforward geostatistical approaches and, for that reason, two indepen...

Barreiro and Setúbal are two regions located within the Metropolitan Area of Lisboa (Portugal) that may suffer from high losses due to earthquake occurrence. The objectives of this study were to evaluate the relationships between the geological and geotechnical properties of the shallower units with horizontal-to-vertical spectral ratio (H/V), look...

Lithogeochemical sampling data from a surface survey is analysed aiming at the definition and mapping of potential lithogeochemical anomalies, providing support for the planning of future geological exploration in the Panasqueira mining area. The methodology presented encompasses three stages (i) statistical analysis of the behaviour of the chemica...

In Portugal sealed waste dumps are still an environmental hazard to groundwater and ecosystem since most of these deposits are located in high vulnerability aquifer areas and protected ecosystem areas, as water stream valleys or inside old open pit quarries, without any foundation protection. Although some of these infra-structures are already inte...

Using the example of the upper Hauterivian in the Lusitanian Basin, we demonstrate a climatic control of cyclic variations in the biological, mineralogical, chemical, and magnetic markers in a lagoonal environment. In a lagoonal setting, variations in detrital supply, controlled by climate changes, modify the water turbidity. During humid climatic...

Since the nineteenth century new taxa of invertebrates (32), one vertebrate and one fossil plant have been defined, using toponyms from Mozambique. Besides the toponym Mozambique itself, the most used for specific names, fourteen others were used. The establishment of some of these taxa, some of which have been forgotten by the geological literatur...

In this paper a phased methodology of risk assessment associated with the occurrence of landslides in the rocky cliffs along the coast between Sines and Zambujeira do Mar is proposed. In order to do so, a surveying on potential risk areas already diagnosed by ARH-Alentejo, now a part of the Portuguese Environmental Agency, was performed. Field obse...

Since the nineteenth century new taxa of invertebrates (32), one vertebrate and one fossil plant have been defined, using toponyms from Mozambique. Besides the toponym Mozambique itself, the most used for specific names, fourteen others were used. The establishment of some of these taxa, some of which have been forgotten by the geological literatur...

The International Congress on Stratigraphy – STRATI 2013 follows the decision to internationalize the STRATI conferences previously organized by the French Committee of Stratigraphy, the last one of which was held in Paris in 2010. Thus, the Congress possesses both the momentum gained from an established conference event and the excitement of being...

Geotourism is a quite recent concept of tourism which, according to geologists, is based on the geodiversity of a place and finds support in the geological framework of a region to offer the visitor an integrated picture of the territory. However, the ownership of the"geo" part of the term is disputed when the definition is presented by non-geologi...

An integrated analysis of the Hauterivian shallow-marine carbonates from the western margin of the Lusitanian Basin (Portugal) allows us to assess the paleoenvironmental significance of variations of biological, mineralogical, chemical and magnetic markers in a lagoonal environment. The Guincho section is characterized by nine facies included in di...

When values of life, social interaction, borders and History are constantly changing is it possible for an activity as human-depending as Tourism, not to? Heritage is not a finished checklist that a city presents to its visitors, and that is the reason why Tourism must adapt to the new memories that one creates after visiting a cosmopolitan and evo...

RESUMO Lisboa tem já um perfil patrimonial definido: é reconhecida internacionalmente pela sua história, pela sua cultura e pela sua gastronomia. Neste artigo propõe-se um novo modo de olhar para a cidade que nos demonstra como o Geoturismo pode trazer inovação e originalidade de proposta a um local, que precisa de ser renovado, para poder atrair u...

Dans le Bassin Lusitanien, les dépôts crétacés ont été conservés entre Aveiro et le Rio Sado . Ils occupent un graben parallèle à la côte atlantique, orienté Nord Nord Est – Sud Sud Ouest, jalonné par des accidents d'origine hercynienne. Deux secteurs, septentrional et méridional, peuvent être distingués de part et d'autre du parallèle de Caldas da...

Since the XIX century, Portuguese and foreign geologists have defined 47 new invertebrate taxa (foraminifera, ostracods, coelenterates, brachiopods, gastropods, ammonoids, echinoids), 2 new fossil plant taxa (charophyte and pteridophyte) and 1 ichnofossil, using toponymy from the Algarve; these taxa refer to 1 genera, 47 species and 2 varieties. Be...

Apresentam-se neste trabalho alguns exemplos que demonstram as potencialidades dos Sistemas de Informação Geográfica (SIG) aplicados em diferentes domínios de intervenção da área da Engenharia Geológica e de Minas. Os exemplos seleccionados versam diversas temáticas que compreendem a avaliação de riscos naturais, a caracterização espacial de áreas...

THE CONTRIBUTION OF GIS TO THE PLANNING AND MANAGEMENT OF GEOLOGICAL RESOURCES. The exploitation of geological resources, and of dimension stone in particular, is an important industry in Portugal -this country ranks 5th place in the world list of dimension stone producers (Montani, 2001). This paper presents an application of a Geographical Inform...

: A selection procedure for the location of landfill sites, combining GIS technologies with site investigation methodologies, is outlined. Development of the GIS model was driven by the need to identify sites with suitable geological barriers to reduce potential risks of groundwater contamination by landfill leachate and to establish a scientific,...

GIS MODEL FOR WASTE DISPOSAL SITES. Landfill is still the major method for waste disposal in the EU. The need to guarantee environmental protection and to follow a scientific and more transparent procedure of landfill site selection was the motivation to develop the GIS model presented in this paper. This work was developed under the auspices of an...

Flat-pebble conglomerates have been identified in the Lower Toarcian (Levisoni Zone) carbonates of the Sesimbra region (30 km south of Lisboa, Portugal) and related to submarine mass movements. Their origin is explained through a three-stage model based on the comparative analysis of potential generating mechanisms taking into account timing and ty...

One of the applications of clay minerals in basin analysis consists in the utilization of selected minerals as lithostratigraphic markers, which allows the definition of guide-layers in field sections or in borehole logs. These guide-layers are established on the basis of clear anisotropies found in the lateral or vertical evolution of the selected...

The units of the Upper Jurassic of the Alcobaça region «Camadas com Pholadomya protei», «Camadas de Alcobaça» and «Grés Superiores») were originally defined by P. Choffat, having all posterior works of other authors been based on the ages admitted by him. The reference to the existence of ammonoids, collected in sections executed on the «Camadas de...

SUMMARY Ecclesiastical Geology should be understood as the study of rocks used in the construction and decoration of all types of houses of worship (chapels, churches, monasteries, abbeys, etc.). The use of these occurrences as urban geological heritage sites is at the base of this work. A detailed inventory of the natural stones identified in the...