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  • 1
    Electronic Resource
    Electronic Resource
    Herbicide-tolerant corn by pollen selection (1989)
    Springer
    Sexual plant reproduction 2 (1989), S. 65-69 
    Details
    ISSN: 1432-2145
    Keywords: Herbicide tolerance ; Pollen selection ; Sulfonylurea ; Chlorsulfuron
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Maize pollen was exposed to the herbicide Chlorsulfuron (CS), and segregation for tolerance was observed. The resulting plant generation exhibited significantly greater tolerance to CS than other (control) progeny. Since the increase in tolerance occurred after only one generation of pollen exposure, this result demonstrates that pollen selection can be used to develop herbicide-resistant crop species, even when the species are not amenable to cell culture. It also suggests a possible mechanism for the rapid evolution of herbicide tolerance in weeds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00191992
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    Paper (German National Licenses)
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  • 2
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    Recicling and “re-hydration” of degassed magma inducing transient dissolution/crystallization events at Stromboli (Italy) (2008)
    Elsevier
    Details
    Publication Date: 2017-04-04
    Description: Intrusive degassing and recycling of degassed and dense magma at depth have been proposed for a long time at Stromboli. The brief explosive event that occurred at the summit craters on 9 January 2005 threw out bombs and lapilli that could be good candidates to illustrate recycling of shallow degassed magma at depth. We present an extensive data set on both the textures and the mineral, bulk rock and glassy matrix chemistry of the “9 Jan” products. The latter have the common shoshonitic–basaltic bulk composition of lavas and scoriae issued from typical strombolian activity. In contrast they differ by the heterogeneous chemistry of their matrix glasses and their crystal textures that testify to crystal dissolution event(s) just prior magma crystallization upon ascent and eruption. Comparison between mineral paragenesis of the natural products and experimental phase equilibria suggest water-induced magma re-equilibration. We propose that mineral dissolution is related to water enrichment of the recycled degassed magma, via differential gas bubble transfer and to some extents its physical mixing with volatile-rich magma blobs. However, all these features illustrate transient processes. Even though evidence of mineral dissolution is ubiquitous at Stromboli, its effect on the bulk magma chemistry is minor because of the subtle interplay between mineral dissolution and crystallization in magmas having comparable bulk chemistry.
    Description: Published
    Description: 325-336
    Description: JCR Journal
    Description: reserved
    Keywords: mineral dissolution ; magma chemistry ; volatiles ; trace elements ; Stromboli ; 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 3
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    Vulcani: esplosioni ed effusioni (2008)
    Details
    Publication Date: 2012-02-03
    Description: Si tratta dei pannelli realizzati per la mostra
    Description: Vulcani: Esplosioni ed effusioni Festival della Scienza di Genova 2007 Palazzo Ducale – Sottoporticato, Genova Una nuova mostra interattiva delll’Istituto Nazionale di Geofisica e Vucanologia, alla scoperta dei segreti del nostro pianeta e del mondo spettacolare dei vulcani. Organizzato come un “racconto”, è un lungo viaggio dalla nascita Terra ad oggi che aiuta a comprendere il ruolo fondamentale dei vulcani nella storia del nostro pianeta. Inizia con una proiezione 3d seguita da un filmato spettacolare e coinvolgente di eruzioni vulcaniche. Nella mostra si incontrano poi un grande modello di vulcano che può essere “acceso” in modalità interattiva, producendo un’eruzione esplosiva con gran fragore, sezioni di vulcano per scoprire “cosa c’è sotto”, plastici associati ad una speciale proiezione che permette di visualizzare sia l’eruzione sia l’interno del vulcano. E ancora rocce vulcaniche e un laboratorio per esperienze guidate, per capire il meccanismo che provoca l’eruzione, studiando il legame tra gas, pressione ed esplosione, anche utilizzando ulteriori modellini di vulcano. Il fatto che spesso le eruzioni vulcaniche siano accompagnate da attività sismica ci introduce alla parte finale della mostra, dedicata ai terremoti. L’obiettivo complessivo della mostra è quello di comunicare e far comprendere l’importanza del lavoro di ricerca e di controllo che svolge l’INGV e il riflesso che questo ha nella vita di ciascuno di noi. Si tratta, in sostanza, di “raccontare” le attività scientifiche svolte dall’Istituto inquadrandole dal punto di vista del visitatore.
    Description: Con i contributi dell’Associazione per il Festival della Scienza e del Dipartimento della Protezione Civile
    Description: Published
    Description: 5.8. TTC - Formazione e informazione
    Description: reserved
    Keywords: Mostra Vulcani ; Festival della Scienza di Genova 2007 ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk ; 04. Solid Earth::04.07. Tectonophysics::04.07.04. Plate boundaries, motion, and tectonics ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: web product
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  • 4
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    Mineralogical, geochemical, and isotopic characteristics of the ejecta from the 5 April 2003 paroxysm at Stromboli, Itlay: Inferences on the Preeruptive Magma Dynamics (2008)
    American Geophysical Union
    Details
    Publication Date: 2017-04-04
    Description: The 5 April 2003 explosive eruption at Stromboli emplaced typical basaltic scoria, pumice, and lithic blocks. This paper reports a detailed set of mineralogical, geochemical, and isotopic data on the juvenile ejecta and fresh subvolcanic blocks, including micro-Sr isotope analyses and major and dissolved volatile element contents in olivine-hosted melt inclusions. The juvenile ejecta have compositions similar to those of their analogs from previous paroxysms; the 2003 pumice, however, does not contain stable high-MgO olivine, usually typical of large-scale paroxysms and has lower compatible element contents. Texture, composition, and Sr isotope disequilibrium of crystals in pumice indicate that most of them are inherited from the shallow crystal-rich magma and/or crystal mush. The most primitive magma is recorded as rare melt inclusion in olivine Fo85–86. It has a typical S/Cl (1.1) and a total volatile content of 3.1 wt % from which the total fluid pressure was evaluated ≥240 MPa. Hence, moderate pressure conditions can be envisaged for the mechanism triggering the April 2003 paroxysm. The subvolcanic blocks are shoshonitic basalts with 45–50 vol % of phenocrysts (plagioclase + clinopyroxene + olivine). The late-stage crystallization of the crystal-rich magma lead to the formation of Na-sanidine with plagioclase An60–25 + olivine Fo68–49 + Timagnetite ± apatite ± phlogopite ± ilmenite assemblage. Mineralogy, chemistry, and Sr–Nd isotopic signatures of the subvolcanic blocks indicate they represent the slowly cooled equivalents of batches of crystal-rich basaltic magma stored in the uppermost subvolcanic feeding system. Cooling might be facilitated by short breaks in the summit crater activity.
    Description: Unpublished
    Description: 17
    Description: 2.3. TTC - Laboratori di chimica e fisica delle rocce
    Description: 3.5. Geologia e storia dei sistemi vulcanici
    Description: open
    Keywords: Stromboli volcano ; Paroxysmal activity ; Basaltic pumice ; Volatile content ; Mineralogy ; Geochemistry ; Sr isotope ; 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology ; 04. Solid Earth::04.04. Geology::04.04.07. Rock geochemistry ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 5
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    A LiDAR survey of Stromboli volcano (Italy): Digital elevation model-based geomorphology and intensity analysis (2011)
    Taylor & Francis
    Details
    Publication Date: 2017-04-04
    Description: LiDAR (Light Detection and Ranging) is a novel and very useful active remote sensing system which can be used to directly identify geomorphological features as well as the properties of materials on the ground surface. In this work, LiDAR data were applied to the study of the Stromboli volcano in Italy. LiDAR data points, collected during a survey in October 2005, were used to generate a Digital Elevation Model (DEM) and a calibrated intensity map of the ground surface. The DEM, derived maps and topographic cross-sections were used to complete a geomorphological analysis of Stromboli, which led to the identification of four main geomorphological domains linked to major volcanic cycles. Moreover, we investigated and documented the potential of LiDAR intensity data for distinguishing and characterizing different volcanic products, such as fallout deposits, epiclastic sediments and lava flows.
    Description: Published
    Description: 3177-3194
    Description: 1.10. TTC - Telerilevamento
    Description: 3.5. Geologia e storia dei vulcani ed evoluzione dei magmi
    Description: 3.6. Fisica del vulcanismo
    Description: JCR Journal
    Description: reserved
    Keywords: Stromboli Volcano ; LiDAR ; Volcanic surfaces ; Geologic mapping ; 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks ; 04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 6
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    Stromboli volcano, Aeolian Islands (Italy): present eruptive activity and hazards (2015)
    The Geological Society of London 2013
    Details
    Publication Date: 2023-01-16
    Description: Stromboli, the northernmost island of the Aeolian archipelago, is known for its persistent volcanic activity over the last several centuries and for its cone which, on clear days, is surmounted by a gas plume rising from its summit. The island hosts two settled areas: the village of Stromboli (c. 500 inhabitants) to the NE and that of Ginostra (c. 40 inhabitants) to the SW, both situated along the coast. In summer the number of residents grows considerably, reaching c. 5000 people. This paper provides a description of the present activity and reassesses volcanic hazards on the basis of data from a new monitoring system and from studies on the 2002–2003 and 2007 crises. The normal activity, that of mild Strombolian explosions, is occasionally interrupted by violent eruptions of variable scale (paroxysmal events) and lava flows. Volcanic hazards directly generated by eruptive activity consist of ballistic and tephra fallout, pyroclastic flows, lava flows, wildfires and minor lahars, presenting serious problems to the settled areas only occasionally. In addition to hazards directly related to eruptive phenomena, the Sciara del Fuoco depression has been the site of landslides at various scales, sometimes accompanied by the formation of tsunamis.
    Description: Published
    Description: 473-490
    Description: 3V. Dinamiche e scenari eruttivi
    Description: reserved
    Keywords: Stromboli ; Volcanic hazard ; Strombolian explosions ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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