Luca Antonio Dimuccio

University of Coimbra | UC · Department of Geography and Tourism

Karst is a peculiar natural landscape arising from high rock solubility and well-developed underground solutional channel porosity. It is unique for its surface relief (exokarst) and subsurface drainage, including cave systems (endokarst). In Portugal, karst areas mainly consist of marginal or low-density territories with great fragility and vulner...

High-temporal-resolution paleomagnetic datasets are critical for understanding episodes of short-term geomagnetic field instability, such as excursions, onset of reversals, and spikes. Together with geodynamic modeling, they help in the interpretation of changes in the physical environment of the core and at the core-mantle boundary. Speleothems ar...

Most of the lithic tools made during Prehistory in the Iberian Peninsula are mainly composed of three main siliceous rock types: chert, quartzite, and quartz. While the methodologies for the characterization and provenance of raw materials made on chert (and obsidian) have been developed with well-established and widely used protocols, the same doe...

The U-series dating of young and ‘dirty’ speleothems is challenging due to difficulties in assessing the isotopic composition of detrital contaminants and the low-abundance of ²³⁰ Th generated in situ. Here we propose a new dating approach based on the comparison of a speleothem’s paleomagnetic directions to reference curves from global paleomagnet...

Resumo: É propósito deste trabalho a produção de um modelo cartográfico que, no sector setentrional do planalto de Santo António (Maciço Calcário Estremenho, Portugal Central), permita identificar áreas com maior probabilidade de encontrar cavidades cársicas - o potencial endocársico. Vários fatores condicionantes, tais como a litostratigrafia, est...

Mainland Portugal is a Mediterranean country, particularly known for the recurrence of forest fires in terms of burnt areas, losses, and damage. The central Portugal administrative area has been in a “stage” of prominence for this dangerous phenomenon, with the sub-region Pinhal Interior Sul being one of the most critical territories. In addition t...

O XIII Congresso da Geografia Portuguesa realiza-se em tempos de incerteza e mudança, acentuando o que a resposta científica tem de provisório, a par da necessidade de avaliação das soluções propostas pelas estruturas político-administrativas e pelos instrumentos de planeamento, na gestão de velhos e novos problemas de incidência territorial. A Geo...

Fomos surpreendidos recentemente pelo faleci-mento de Jean Nicod, a referência maior dos estudos sobre o carso em língua francesa e, seguramente, uma das referências maiores da carsologia interna-cional. Com 98 anos de idade, deixou-nos uma obra muito importante, tanto no que se refere à investi-gação publicada, como no que diz respeito à docência,...

This work aims to outline a synthetic picture of the stratigraphic evidence that, directly or indirectly, controlled and conditioned the karstification in the Lowermost Jurassic carbonate units cropping out in the urban and peri-urban area of Coimbra city (Central Portugal). Several types of karrens, dolines, dissolution shafts and few caves, fille...

The timing of the Neanderthal-associated Middle Palaeolithic demise and a possible overlap with anatomically modern humans (AMH) in some regions of Eurasia continues to be debated. The Iberian Peninsula is considered a possible refuge zone for the last Neanderthals, but the chronology of the later Middle Palaeolithic record has undergone revision a...

The geomorphological setting of the Sicó massif (western-central Portugal) is the result of a long-term evolution under the control of tectonics and climate. The bedrock lithology is composed by a thick and generally continuous carbonate succession from the Lower and Middle Jurassic. Post-Jurassic tectonic deformations were responsible for the prog...

The Tardiglacial of Portugal has been associated with the Magdalenian culture and lithic industries characterized by tool miniaturization, a diversity of microlith types, and the absence of a intentional blade production. The technological characterization, the chronology and the phasing of the Portuguese Magdalenian have been defined based on data...

In order to support a more integrated approach in the early phases of Risk Management Process, a multi-hazard index was defined to assess the spatial and temporal interaction between natural hazards affecting the same area in a specific timeframe. The Coimbra municipality (western-central Portugal) was used as case study. This territory is an examp...

A doline is a natural superficial enclosed depression of karst landscapes, usually circular or subcircular in plan and with a few to a hundred meters in diameter. This very distinctive and common karst landform can appear in a variety of shapes and sizes. The spatial distribution, description and evolution of dolines were investigated in the Gorazb...

identification of Palaeolithic sites of exceptional scientific and cultural value worldwide such as, for instance, the Palaeolithic Art of the Coa Valley. The existence of gaps in the national map of Palaeolithic sites as well as the inherent difficulties of identifying sites of this chronology have led to the creation of a project which seeks to d...

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Les dolines sont une des formes du relief karstique les plus typiques dans le karst de la forêt expérimentale de Kheiroud-Kenar, au nord de l'Iran. Il y a une grande variété de dolines en termes de forme et de composition. Afin d'avoir une étude approfondie de l'effet de la morphologie sur les caractéristiques du sol, on a effectué la morphométrie...

Bien que de nombreuses études traitent de l’évolution des formes du relief et des dépôts quaternaires des principaux fleuves et des rivières du Portugal, dans un cadre tectonique et paléoclimatique d’échelle régionale, l’étude de leur relation possible avec leur occupation humaine n’a pas fait l’objet d’une approche spécifique à l’échelle de leur b...

Detailed measurements of air temperature have been made inside and outside the Soprador do Carvalho cave (Sicó Massif, Portugal), which is part of a complex karstic cave system with mainly horizontal passages subject to seasonal flooding. A preliminary air circulation model has been defined that will be of great interest for the definition of the c...

Este trabalho sintetiza o conhecimento geomorfológico adquirido sobre o Maciço de Sicó, um dos principais maciços calcários carsificados da Orla Meso-Cenozóica ocidental Portuguesa. São passadas em revista as principais formas e formações relacionadas com os processos cársicos (geomorfológicos, hidrológicos e espeleológicos) bem como as fases da su...

Abstract : The general objective of this preliminary study is to define an integrated spatial modelling of natural risks for the Coimbra municipality (western-central Portugal), making it possible to establish intervention priorities for its mitigation. Indeed, this selected study area is an example of the persistence occurrence of potentially dang...

Os trabalhos de arqueologia desenvolvidos desde o início da última década do século XX no Centro e Nordeste de Portugal permitem estabelecer um quadro paleoambiental e cronoestratigráfico das várias fases de ocupação durante o Paleolítico Superior, bem como aperceber caraterísticas da adaptação técnica da produção das indústrias de pedra lascada, e...

A formal lithostratigraphic framework is proposed for the Lower Jurassic dolomitic-limestone succession of Lusitanian Basin, cropping out in the Coimbra-Penela region (western-central Portugal). In this proximal domain of the basin, the Coimbra Formation (Early to Late Sinemurian) and the S. Miguel Formation (Late Sinemurian to Early Pliensbachian)...

Neste livro, por lapso de edição, o último capítulo, relativo à paragem 7 e intitulado "O oppidum e o território romano de Conimbriga" foi erradamente atribuído ao autor Lúcio Cunha, quando de facto foi escrito por Adília Alarcão. Esta parte do texto foi retirada do livro "O oppidum de Conimbriga e as Terras de Sicó" (p. 35-40), editado pela Liga d...

The spatial distribution of the open air rock art known today along the Coa Valley (Northeast Portugal) denotes a clear concentration along the left riverbank. In order to explain this specific occurrence, the geological and environmental constraints for the preservation of the rock art supports have been analysed. Regional geological structure was...

The general objective of this preliminary study is to define an integrated spatial modelling of natural risks for the Coimbra municipality (western-central Portugal), making it possible to establish intervention priorities for its mitigation. Indeed, this selected study area is an example of the persistence occurrence of potentially dangerous natur...

Pretende-se debater sobre a litostratigrafia e a sedimentologia das unidades calco-dolomíticas da base do Jurássico Inferior que afloram no setor oriental da Bacia Lusitânica, com particular enfâse para as caraterísticas faciológicas e estratonómicas observáveis diretamente no campo na região de Penela. Com uma aparente monotonia litológica e estra...

Abstract Dolomitization is the most significant syndepositional and diagenetic process within the early Lower Jurassic shallow-marine carbonate succession cropping out in the eastern part of the Lusitanian Basin (Portugal). In this proximal domain, the Coimbra Formation (lower Sinemurian) overlies a Hettangian muddy-evaporitic complex and is compos...

Abstract: The presence and use of iron minerals in certain archaeological contexts, including karstic caves, with wide range of exploitation chronologies, is well known in literature. Geochemical characterization of these minerals has become increasingly common practice for geoarchaeological interpretations, particularly to support the identificati...

This brief note aims to outline a synthetic evolution model of the karstification affecting the dolomitic hills located south of Coimbra (western-central Portugal). The observed karst forms (e.g. karrens, dissolution shafts, dolines and few caves) are commonly filled by autochthonous and/or allochthonous post-Jurassic siliciclastics, implying a pal...

Carbonate cave deposits have a widespread use in deciphering climatic signals from the past using several proxies (e.g. stable isotope compositions). In the western central part of Portugal, the Mesozoic sediments of the Lusitanian basin are particularly susceptible to dissolve by interaction with meteoric waters and to develop karstic caves, espec...

An evolutionary model is proposed to explain the spatio-temporal distribution of karstification affecting the Lower Jurassic shallow-marine carbonate succession (Coimbra Group) of the Lusitanian Basin, cropping out in the Coimbra-Penela region (western-central Portugal), in a specific morphostructural setting (Dolomitic Hills). Indeed, in the Coimb...

No Centro Litoral de Portugal continental, no espaço que estruturalmente pertence à chamada Bacia Lusitânica, as rochas carbonatadas jurássicas são responsáveis por um conjunto de pequenos Maciços Calcários, salientes na paisagem, quer pelo comportamento diferencial das litologias, quer pela atuação da tectónica alpina. Nestes maciços, os processos...

Transformation in technological patterns associated with the Middle-to-Upper Palaeolithic transition between 50 and 40 ka in Western Europe and their relationship with the Neanderthal and Anatomically Modern Human populations and behaviors are issues that continue to stimulate heated debate. In this article we use the Middle and Early Upper Palaeol...

An evolutionary geological/geomorphological model is proposed to explain the spatio–temporal distribution of palaeokarst affecting a Lower Jurassic shallow-marine carbonate succession (Coimbra Group; Sinemurian), cropping out in the Coimbra–Penela region (western central Portugal), in a specific morphostructural setting (dolomitic hills). Field and...

A new geomorphological and structural cave survey, as well as a sedimentological and stratigraphic analysis of clastic cave sediments and local post-Jurassic siliciclastic covers, was performed at the Buraca Escura archaeological site (Poio Novo valley, Sicó Massif, western–central Portugal). Provenance and endokarstic transport were investigated b...

Resumo: Neste texto propusemo-nos avaliar como a Geomorfologia se afirmou através da história dos temas que vieram a constituir o seu campo de estudos e do modo como se processou a sua institucionalização disciplinar nas universidades e nas sociedades científicas. Esta avaliação teve ainda em consideração, de acordo com a natureza dos contextos cie...