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  • Articles  (159)
  • Ecology  (126)
  • 04.04. Geology  (33)
  • crystal structure
  • 2020-2024  (159)
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  • 1
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    A new species of Dugesia (Platyhelminthes, Tricladida, Dugesiidae) from China, with an account on the histochemical structure of its major nervous system (2020)
    Pensoft Publishers
    In:  Zoosystematics and Evolution vol. 96 no. 2, pp. 431-447
    Details
    Publication Date: 2024-01-12
    Description: By means of an integrated approach, including molecular, morphological, anatomical and histological data, we describe a new species of freshwater flatworm of the genus Dugesia from southwest China, representing the third species recorded for the country. Morphologically, the new species, Dugesia umbonata Song & Wang, sp. nov., is particularly characterised by the presence of a muscularised hump immediately antero-dorsally to a knee-shaped bend in its bursal canal and by an ejaculatory duct that opens subterminally through the dorsal side of the penis papilla. Four molecular datasets (18S rDNA; ITS-1; 28S rDNA; COI) facilitated determination of the phylogenetic position of the new species, which belongs to a clade comprising other species from the Australasian and Oriental regions. We also analysed the structure of its major nervous system by means of the acetylcholinesterase (AChE) histochemical method and compared these results with data available for three other species of Dugesia.
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Molecular phylogeny ; Taxonomy ; Histochemistry ; Acetylcholinesterase (AChE)
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 2
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    A catalogue of the Coleoptera of the Dutch Antilles (2020)
    Brill
    In:  Tijdschrift voor Entomologie vol. 162 no. 2-3, pp. 67-186
    Details
    Publication Date: 2024-01-12
    Description: This paper presents a first critical review of the beetle species (Insecta: Coleoptera) reported from the (former) Dutch Antilles as well as a history of beetle collecting and collectors on the islands. The introductory section provides a concise overview of the location, climate, geology and vegetation of the six islands. The catalogue is concluded with miscellaneous additions, corrections and annotations to the published records of the other islands of the northern Leeward Islands, and a comprehensive bibliography. (ZooBank registration: http://zoobank.org/ \nE2D76464-5AAE-4D75-9AC5-CA119E65D72A)
    Keywords: Ecology ; Evolution ; Behavior and Systematics ; Insect Science
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 3
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    Numerous new records of tropical non-indigenous species in the Eastern Mediterranean highlight the challenges of their recognition and identification (2021)
    Pensoft Publishers
    In:  ZooKeys vol. 1010, pp. 1-95
    Details
    Publication Date: 2024-01-12
    Description: New data on 52 non-indigenous mollusks in the Eastern Mediterranean Sea is reported. Fossarus sp. (aff. aptus sensu Blatterer 2019), Coriophora lessepsiana Albano, Bakker & Sabelli, sp. nov., Cerithiopsis sp. aff. pulvis, Joculator problematicus Albano & Steger, sp. nov., Cerithiopsis sp., Elachisina sp., Iravadia aff. elongata, Vitrinella aff. Vitrinella sp. 1 (sensu Blatterer 2019), Melanella orientalis, Parvioris aff. dilecta, Odostomia cf. dalli, Oscilla virginiae, Parthenina cossmanni, Parthenina typica, Pyrgulina craticulata, Turbonilla funiculata, Cylichna collyra, Musculus coenobitus, Musculus aff. viridulus, Chavania erythraea, Scintilla cf. violescens, Iacra seychellarum and Corbula erythraeensis are new records for the Mediterranean. An unidentified gastropod, Skeneidae indet., Triphora sp., Hypermastus sp., Sticteulima sp., Vitreolina cf. philippi, Odostomia (s.l.) sp. 1, Henrya (?) sp., and Semelidae sp. are further potential new non-indigenous species although their status should be confirmed upon final taxonomic assessment. Additionally, the status of Dikoleps micalii, Hemiliostraca clandestina comb. nov. and H. athenamariae comb. nov. is changed to non-indigenous, range extensions for nine species and the occurrence of living individuals for species previously recorded from empty shells only are reported. Opimaphora blattereri Albano, Bakker & Sabelli, sp. nov. is described from the Red Sea for comparison with the morphologically similar C. lessepsiana Albano, Bakker & Sabelli, sp. nov. The taxonomic part is followed by a discussion on how intensive fieldwork and cooperation among institutions and individuals enabled such a massive report, and how the poor taxonomic knowledge of the Indo-Pacific fauna hampers non-indigenous species detection and identification. Finally, the hypothesis that the simultaneous analysis of quantitative benthic death assemblages can support the assignment of non-indigenous status to taxonomically undetermined species is discussed.
    Keywords: Animal Science and Zoology ; Ecology ; Evolution ; Behavior and Systematics ; Cerithiopsidae ; invasion biology ; Lessepsian invasion ; Mollusca ; new species ; Red Sea ; taxonomy ; Triphoridae
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 4
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    IPSI 1.5, Database of Italian Present-day Stress Indicators (2023)
    Details
    Publication Date: 2023-04-18
    Description: Istituto Nazionale di Geofisica e Vulcanologia
    Description: Published
    Description: 2T. Deformazione crostale attiva
    Description: 4T. Sismicità dell'Italia
    Keywords: present-day stress ; borehole breakout ; earthquake focal mechanism ; 04.07. Tectonophysics ; 04.06. Seismology ; 04.04. Geology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: web product
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  • 5
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    The role of trapped fluids during the development and deformation of a carbonate/shale intra-wedge tectonic mélange (Mt. Massico, Southern Apennines, Italy) (2020)
    Elsevier
    Details
    Publication Date: 2023-10-26
    Description: Numerous studies exist on exhumed tectonic mélanges along subduction channels whereas, in accretionary wedge interiors, deformation mechanisms and related fluid circulation in tectonic mélanges are still underexplored. We combine structural and microstructural observations with geochemical (stable and clumped isotopes and isotope composition of noble gases in fluid inclusions of calcite veins) and U-Pb geochronological data to define deformation mechanisms and syn-tectonic fluid circulation within the Mt. Massico intra-wedge tectonic mélange, located in the inner part of the central-southern Apennines accretionary wedge, Italy. This mélange developed by shear deformation at the base of a clastic succession. Deformation was characterized by disruption of the primary bedding, mixing, and deformation of relicts of competent olistoliths and strata within a weak matrix of deformed clayey and marly interbeds. Recurrent cycles of mutually overprinting fracturing/veining and pressure-solution processes generated a block-in-matrix texture. The geochemical signatures of syntectonic calcite veins suggest calcite precipitation in a closed system from warm (108°-147 °C) paleofluids, with δ18O vlaues between þ9‰ and 14‰, such as trapped pore waters after extensive 18O exchange with the local limestone host rock and/or derived by clay dehydration processes at T 〉 120 °C. The 3He/4He ratios in fluid inclusions are lower than 0.1 Ra, indicating that He was exclusively sourced from the crust. We conclude that: (1) intraformational rheological contrasts, inherited trapped fluids, and low-permeability barriers such as marlyshaly matrix, can promote the generation of intra-wedge tectonic mélanges and the development of transient fluid overpressure; (2) clay-rich tectonic mélanges, developed along intra-wedge décollement layers, may generate low-permeability barriers hindering the fluid redistribution within accretionary wedges.
    Description: Published
    Description: 104086
    Description: 1T. Struttura della Terra
    Description: 2T. Deformazione crostale attiva
    Description: JCR Journal
    Keywords: Tectonic mélange ; Fluid-rock interaction ; Stable and clumped isotopes ; Noble gases ; Fold and thrust belt ; 04.04. Geology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 6
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    Assessing methyl tertiary butyl ether residual contamination in groundwater using radon (2021)
    Elsevier Ltd.
    Details
    Publication Date: 2023-10-26
    Description: About 15 years ago, a fuelling station in Roma (Italy) was dismissed. When underground tanks were removed, a subsoil NAPL (Non-Aqueous Phase Liquid) contamination came out, showing gasoline leakage from the reservoirs. Monitoring actions took place next and only recently radon dissolved in groundwater was measured for a year and used as tracer of NAPLs in view of its high solubility in these substances. The relative deficit of radon in polluted groundwater compared to radon in background “clean” water allowed us to detect areas where residual gasoline is still located. The source of pollution was identified in correspondence of former gasoline tanks, in agreement with direct measurements of dissolved NAPLs, mainly Methyl Tertiary Butyl Ether (MTBE), a resistant and water-soluble additive introduced in gasoline in place of lead. A short and transient plume of MTBE was occasionally recognized. We hypothesize that the rise of groundwater table enhances removal of MTBE, likely adsorbed onto soil minerals such as zeolites, thus increasing its concentration in water. MTBE levels are then progressively reduced by natural attenuation processes, with half-life of about 23 days. Estimates of MTBE saturation from radon-deficit equations were not reliable because the aquifer is not homogeneous in terms of 226Ra distribution, porosity and emanation power and no equilibrium is reached for radon partitioning between NAPL and water.
    Description: Published
    Description: 104583
    Description: 6A. Geochimica per l'ambiente e geologia medica
    Description: JCR Journal
    Keywords: MTBE ; NAPL ; Radon ; Groundwater contamination ; Monitoring ; Italy ; 03.02. Hydrology ; 04.04. Geology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 7
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    Towards a National-Scale Dataset of Geotechnical and Hydrological Soil Parameters for Shallow Landslide Modeling (2023)
    MDPI
    Details
    Publication Date: 2023-02-27
    Description: One of the main constraints in assessing shallow landslide hazards through physically based models is the need to characterize the geotechnical parameters of the involved materials. Indeed, the quantity and quality of input data are closely related to the reliability of the results of every model used, therefore data acquisition is a critical and time-consuming step in every research activity. In this perspective, we reviewed all official certificates of tests performed through 30 years at the Geotechnics Laboratory of the Earth Science Department (University of Firenze, Firenze, Italy), compiling a dataset in which 380 points are accurately geolocated and provide information about one or more geotechnical parameters used in slope stability modeling. All tests performed in the past (in the framework of previous research programs, agreements of cooperation, or to support didactic activities) were gathered, homogenized, digitalized, and geotagged. The dataset is based on both on-site tests and laboratory tests, it accounts for 40 attributes, among which 13 are descriptive (e.g., lithology or location) and 27 may be of direct interest in slope stability modeling as input parameters. The dataset is made openly available and can be useful for scientists or practitioners committed to landslide modeling.
    Description: Published
    Description: 37
    Description: 4IT. Banche dati
    Description: JCR Journal
    Keywords: Geotechnics ; Hydrology ; Slope stability ; Landslide ; Modeling ; Geotechnical database ; Input data ; Cohesion ; Internal friction angle ; Permeability ; 04.04. Geology ; 03.02. Hydrology ; 05.02. Data dissemination
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 8
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    Comment on ‘Unveiling ductile deformation during fast exhumation of a granitic pluton in a transfer zone’ by Richard Spiess, Antonio Langone, Alfredo Caggianelli, Finlay M. Stuart, Martina Zucchi, Caterina Bianco, Andrea Brogi, & Domenico Liotta (2023)
    Elsevier
    In:  Spiess, R., Langone, A., Caggianelli, A., Stuart, F.M., Zucchi, M., Bianco, C., et al., 2021. Unveiling ductile deformation during fast exhumation of a granitic pluton in a transfer zone. J. Struct. Geol. 147, 104326.
    Details
    Publication Date: 2023-02-27
    Description: In their paper, Spiess et al. (2021) published structural, geochronological, and EBSD data on one of the monzogranite apophyses (Capo Bianco) of the buried Porto Azzurro Pluton (island of Elba, Northern Apennines, Italy), a pluton emplaced in the upper crust (P 〈 0.2 GPa; e.g. Papeschi et al., 2019). The authors published a new U/Pb age of 6.4 ± 0.4 Ma, associated with the thermal peak, and a U-Th/He apatite age of 5.0 ± 0.6 Ma, indicating cooling below 60 ◦C. Spiess et al. (2021) use these ages to model the exhumation of the pluton controlled, in their model, by the Zuccale Fault, a subhorizontal fault with 6 km of eastward displacement (ZF; Keller & Coward, 1996). Their structural dataset from the macro to the microscale and EBSD analyses relies on a small section (about 100 m wide) in the NE part of the Calamita Peninsula. Based on their documentation of (1) vertical dykes in the monzogranite, (2) vertical to low-angle top-to-the-E extensional faults, and (3) later NWstriking oblique faults, they interpret the Porto Azzurro Pluton as emplaced in an extensional to transcurrent tectonic setting, extrapolating their findings to the entire Eastern Elba.
    Description: Published
    Description: 104499
    Description: 1T. Struttura della Terra
    Description: JCR Journal
    Keywords: Upper crustal deformation ; Magmatic intrusion ; 04.04. Geology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 9
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    Earthquake weak motions and noise measurements unravel significant site amplification effects in the Val d'Agri basin (southern Italy) (2023)
    SGI
    Details
    Publication Date: 2023-02-23
    Description: The Val d’Agri basin is one of the areas of highest seismic hazard in Italy. Moreover, widespread residential buildings with high seismic vulnerability, a water reservoir, and infrastructures related to hydrocarbon exploitation contribute to increasing the local seismic risk. The basin is several kilometers wide, about 400 m deep, and filled by continental, Quaternary sediments. In this paper we analyse earthquake weak ground motions and ambient noise measurements to investigate local site effects. Data were recorded by eight seismic stations deployed along a 7 km long transect that runs SW-NE across the central part of the basin. The stations operated for three years. Four stations were installed within the basin, two near its edges, and two outside on limestone outcrops. Good quality recordings from about eighty local and regional earthquakes (with average distance from the basin 400 km and 40 km respectively, and ML in the 1.2 - 6.5 range) evidence significant ground motion amplification both in the peak values and durations for the basin stations relative to the hard-rock one. Site effects have been investigated by computing: (1) standard spectral ratios with respect to the hard-rock station (H/Hrif), (2) single-station H/V spectral ratios, (3) simplified 1-D and 2-D numerical modelling based on subsurface information. Earthquake recordings for sites within the basin show: (i) significant ground motion amplifications in a wide frequency range (0.5-7 Hz), (ii) a dominant low-frequency peak around 0.7 - 1 Hz with amplification factors between 3 and 7, (iii) secondary peaks around 1.5 Hz and 3 Hz. Single-station techniques confirm a clear peak or bump around 0.6 - 1 Hz that we therefore relate to the fundamental resonance frequency of the sites. Frequency-time and particle motion analyses performed on earthquake data indicate that the observed ground motion amplifications cannot be fully explained by simple 1-D propagation effects, so we carried out several 2-D numerical simulations in order to better investigate the basin seismic response. The results evidence a role played by basin edge effects on the observed ground motion amplifications. Besides, the response of the basin is controlled by lateral heterogeneities between coarse cemented deposits filling the eastern depocenter and low-velocity softer deposits widespread in the central-western sector.
    Description: Published
    Description: 84-102
    Description: 5T. Sismologia, geofisica e geologia per l'ingegneria sismica
    Description: JCR Journal
    Keywords: site effects ; Val d’Agri ; spectral ratios ; 2-D modeling ; 04.06. Seismology ; 04.04. Geology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 10
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    Multiproxy investigation of the last 2,000 years BP marine paleoenvironmental record along the western Spitsbergen margin (2023)
    Taylor and Francis
    Details
    Publication Date: 2023-02-21
    Description: A reconstruction of the last 2,000 years BP of environmental and oceanographic changes on the western margin of Spitsbergen was performed using a multidisciplinary approach including the fossil assemblages of diatoms, planktic and benthic foraminifera and calcareous nannofossils and the use of geochemistry (X-ray fluorescence spectroscopy, X-ray diffraction). We identified two warm periods (2,000–1,600 years BP and 1,300–700 years BP) that were associated with the Roman Warm Period and the Medieval Warm Period that alternate with colder oceanic conditions and sea ice coverage occurred during the Dark Ages (1,600–1,300 years BP) and the beginning of the Little Ice Age. During the Medieval Warm Period the occurrence of ice-rafted debris and Aulocoseira spp., a specific diatom genus commonly associated with continental freshwater, suggests significant runoff of meltwaters from local glaciers.
    Description: Published
    Description: 562–583
    Description: 5A. Ricerche polari e paleoclima
    Description: JCR Journal
    Keywords: Micropaleontology ; Sedimentology ; Arctic ; Svalbard ; 04.04. Geology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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