Mineralogia, Petrologia i Geologia Aplicada: Recent submissions
Now showing items 21-40 of 1068
Time scales of open-system processes in a complex and heterogeneous mush-dominated plumbing system
The architecture of a mush-dominated plumbing system in active volcanic areas conditions the magma pathways feeding eruptions. Open-system processes along these pathways and the associated time scales are directly related ...
From explosive vent opening to effusive outpouring: mineral constraints on magma dynamics and timescales at paricutin monogenetic volcano
Paricutin volcano is the youngest monogenetic cone of the Michoacán–Guanajuato volcanic field (Mexico), with an excellent historical eruption record from February 1943 to March 1952. The magma emitted during the 9 years ...
Unrest signals after 46 years of quiescence at Cumbre Vieja, La Palma, Canary Islands.
Monogenetic eruptions are the most common volcanic activity in the world. However, unrest monitoring data are scarce due to the long intervening quiescence periods. This study analyzes unrest signals recorded in one of the ...
Microbial mediation and climatic control on dolomiteprecipitation in a hypersaline lake: Insights from SalinasLake, southern Iberia
This study examines the climatic controls on dolomite precipitation through a multiproxy investigation of a carbonate-rich sediment core from Salinas Lake, a hypersaline playa in Alicante, south-eastern Iberia. The ...
Years to weeks of seismic unrest and magmatic intrusions precede monogenetic eruptions
Seismic, deformation, and gas activity (unrest) typically precedes volcanic eruptions. Tracking the changes of this activity with monitoring data makes it increasingly possible to successfully forecast eruptions from ...
Unveiling the complexity of monogenetic volcanic fields: a petrological exploration of the Puig Jordà (Garrotxa Volcanic Field, Spain).
The magmas erupted in the Garrotxa Volcanic Field (GVF) in northeastern Spain have been traditionally attributed to direct ascent of magma from its source in the mantle, a theory supported by the frequent presence of mantle ...
Magma interactions, crystal mush formation, and unrest during caldera collapse and lateral eruption at ocean island basaltic volcanoes (Piton de la Fournaise, La Réunion)
The dynamics of magmatic processes at large mafic ocean island volcanoes control the likely locations (central caldera versus flanks) and timing of their eruptions. Crystals and their melt inclusions are key witnesses of ...
Driving magma to the Surface: the 2011-2012 El Hierro volcanic eruption
We reanalyzed the seismic and deformation data corresponding to the preeruptive unrest on El Hierro (Canary Islands) in 2011. We considered new information about the internal structure of the island. We updated the seismic ...
Mapping the Impact of Salinity Derived by Shrimp CulturePonds Using the Frequency-Domain EM Induction Method
This study investigates groundwater salinization in a section of a coastal aquifer in RioGrande do Norte, Brazil, using frequency-domain electromagnetic (FDEM) measurements.With the global expansion of shrimp farming in ...
Gypsum Crystals Formed by the Anhydrite–Gypsum Transformation at Low Temperatures: Implications for the Formation of the Geode of Pulpí
Determining the mechanisms of the formation of giant crystals is a challenging subject. Gypsum, calcium sulfate dihydrate (CaSO4·2H2O), is known to form crystals larger than one meter in several locations worldwide. These ...
Mechanisms shaping the gypsum stromatolite-like structures in the Salar de Llamara (Atacama Desert, Chile)
The explanation of the origin of microbialites and specifically stromatolitic structures is a problem ofhigh relevance for decoding past sedimentary environments and deciphering the biogenicity of the oldest plausible ...
Mineralogy, geochemistry and origin of karst bauxite deposits from the Reserva Fiscal Ávila, SW Dominican Republic
The energy transition, which aims to reduce carbon emissions and to slow down climate change, demands an ever-increasing supply of the so-called “critical metals”. Rare-earth elements and yttrium (REY) are among the most ...
Assessment of groundwater quality using hydrochemical process, GIS and multivariate statistical analysis at central Rif, North Morocco
This study investigated groundwater in the central Rif region of northern Morocco by analysing 55 water sampling points to assess its physicochemical and hydrogeochemical properties. Through hydrochemical analysis, GIS ...
Compartir ideas. La Universidad va al Instituto: un proyecto de aprendizaje- servicio transversal de la Universidad de Barcelona
Compartir ideas. La universidad va al instituto es un proyecto de aprendizaje servicio transversal de la Universidad de Barcelona. Este representa una propuesta de aprendizaje servicio que bajo una estructura común permite ...
Formation and evolution of back-barrier perched lakes in rocky coasts: an example of a Holocene system in NW Spain
Coastal back-barrier perched lakes are freshwater bodies that are elevated over sea-level and are not directly subjected to the inflow of sea-water. This study provides a detailed reconstruction of the Doniños back-barrier ...
Land-use land-cover change analysis using remote sensing and geographic information systems in northen Rif, Morocco.
Land use and land cover (LULC) maps play a crucial role in guiding planning and management efforts, this study present consideration of regarding trend analysis in the land use and land cover of the Al Hoceima in the ...
Intrasalt carbonates in the Estopanyà Salt Wall (South-Central Pyrenees): reservoir quality and implications for geothermal exploration in salt diapirs
Stringers are disrupted rock bodies commonly enclosed within salt diapirs. Traditionally, they have been regarded as a risk factor in the energy exploitation of salt structures due to their heterogeneity and general ...
Mush system heterogeneities control magma composition and eruptive style on the Ocean Island of El Hierro, Canary Islands.
The study of recent eruptions in Ocean Islands (OIs) provides a unique window into the magma dynamics governing their plumbing systems and the mechanisms leading to eruptions. Here we present an integrated approach to ...
Thermal studies on the lower Carboniferous basins of Khenifra and Qasbat-Tadla, Morocco: What do they teach us about the pre-Variscan stages in NW Africa?
Within the Variscan Belt of Morocco, the Central Massif preserves Early Carboniferous rift basins. The Lower Carboniferous Khenifra and Qasbat-Tadla basins are aborted rifts, developed just before the Variscan orogenesis ...
Magnetostratigraphic dating of earliest hominin sites in Europe
After a century of research, the chronology of the first arrival of hominins in Europe remains controversial. Four Spanish localities potentially record evidence of the oldest Europeans, yet arrival ages remain loosely ...
