Mostrando 1,701 - 1,720 Resultados de 2,293 Para Buscar '"volcán"', tiempo de consulta: 0.18s Limitar resultados
  1. 1701
    “…Analysis of the global biogeography of this group further revealed its presence in previously unrecognized habitats, such as subterranean and volcanic biofilm environments, indicating a potential role of these environments in the biological sink for atmospheric methane.…”
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  2. 1702
    “…In order to investigate the variability of helium degassing in continental regions, its release from rocks and emission into the atmosphere, here we studied the degassing of volatiles in a seismically active region of northern Italy (Mw(MAX) = 6) at the Nirano-Regnano mud volcanic system. The emitted gases in the study area are CH(4)–dominated and it is the carrier for helium (He) transfer through the crust. …”
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  3. 1703
    “…No subduction related arc volcanism since the Eocene has also influenced to preserve the stable tectonic unit.…”
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  4. 1704
    “…Our results highlight that motion patterns at lava domes control the structural and thermal architecture, and different timescales should be considered to better characterize surface motions during dome growth to improve the assessment of volcanic hazards.…”
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  5. 1705
    “…Our new MPN analysis of various environmental samples revealed that the cell density of COS-degrading microorganisms in forest soils ranged between 10(6) and 10(8) MPN (g dry soil)(–1), which was markedly higher than those in volcanic deposit and water samples, and strongly correlated with the rate of COS degradation in environmental samples. …”
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  6. 1706
    “…In this way, we assess the contribution of these conditions to volcanic deformation, crustal stress evolution, and eruption forecasts. …”
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  7. 1707
    “…Beyond this, the understanding of the process provides physical insight to many other natural and industrial problems for which the stability of surface bubbles is of importance, such as bio-foams, froth floatation, and volcanic flows.…”
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  8. 1708
    “…[Image: see text] Current research on radionuclide disposal is mostly conducted in granite, clay, saltstone, or volcanic tuff formations. These rock types are not always available to host a geological repository in every nuclear waste-generating country, but carbonate rocks may serve as a potential alternative. …”
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  9. 1709
    “…To demonstrate DendroScan’s potential, ten experimental samples are compared with volcanic ash samples generated by the Havre 2012 deep-sea eruption in the Kermadec arc (New Zealand). …”
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  10. 1710
    por Wang, Xiao, Pecoraro, Lorenzo
    Publicado 2021
    “…We analyzed the crater soil microbial diversity of Tianchi Volcano, northeast China, by combining molecular and morphological analyses of culturable microbes, and metabarcoding based on Illumina sequencing, in order to increase our understanding of high-altitude volcanic microbial community structure. One-hundred and seventeen fungal strains belonging to 51 species and 31 genera of Ascomycota, Basidiomycota and Mucoromycota were isolated. …”
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  11. 1711
    “…We conclude that the sign and magnitude of radon (sensu lato) changes observed in volcanic settings depend on the flux rate of carrier fluids and the rival effects between advective transport and radionuclide dilution.…”
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  12. 1712
    “…In the Canary Islands, phonolitic rocks are geological elements of volcanic origin that represent additional habitat for species. …”
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  13. 1713
    “…Negative AO phases are associated with cold anomalies and show a remarkable decrease in the nineteenth century caused by a series of major volcanic eruptions. Our findings help explaining the increased frequency of Siberian forest fires over the past decades in Central Siberia consistent with a reduction of summer precipitation, triggered by a positive phase of the Arctic Oscillation in May.…”
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  14. 1714
    “…They comprise two main volcanic islands, Dongdo (east islands) and Seodo (west islands) and minor islets surrounding the two main islands. …”
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  15. 1715
    “…In the framework of the EU-funded LIFE-Respire project, a large amount of data (radionuclide content, soil gas samples, terrestrial gamma, indoor radon) was collected from three municipalities located in different volcanic districts of the Lazio region (central Italy) that are characterised by low to high GRP. …”
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  16. 1716
    “…Motivated by the bubble coalescence in magma during volcanic eruptions, we study both experimentally and theoretically the coalescence of two growing bubbles in a Hele–Shaw cell. …”
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  17. 1717
    “…At present, data on distribution coefficients of REE during fractional crystallization of carbonatitic melts at volcanic conditions are extremely scarce. Here we present an experimental study of REE partitioning between carbonatitic melts and calcite in the system CaCO(3)-Na(2)CO(3) with varying amounts of P(2)O(5), F, Cl, SiO(2), SO(3) at 650–900 °C and 100 MPa using cold-seal pressure vessels and LA-ICP-MS. …”
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  18. 1718
    “…These biogeochemical variables record information about past climatic conditions, paleoproductivity, past hypolimnetic anoxia, aeolian input, volcanic eruptions, earthquake and flood frequencies, and other variables of environmental relevance. …”
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  19. 1719
    “…The CIR spherules could have formed either by the interaction of the reduced hydrothermal fluids with the ultramafic/basaltic rocks or silica-undersaturated magmatic melts, or by alteration of original particles (such as cosmic spherules, volcanic spherules, or even foraminifera) via Mn-bearing hydrothermal fluids, such as released during the serpentinization of ultramafic rocks. …”
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  20. 1720
    por Hammann, Arno C., MacDonell, Shelley
    Publicado 2022
    “…Application of the regression methods to other comparable problems like volcanic eruptions, forest fires, or simply gap filling of observational data, are conceivable.…”
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