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Mostrando 841 - 860 Resultados de 2,293 Para Buscar '"volcán"', tiempo de consulta: 0.20s Limitar resultados
  1. 841
    “…Ruling out a volcanic source means that volatiles in the top 1-3 meters of the Cabeus PSR regolith may be younger than the latest volcanic outgassing event (~1 billion years ago; Gya).…”
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    Exogenic origin for the volatiles sampled by the Lunar CRater Observation and Sensing Satellite impact
  2. 842
    “…These volcanic rocks are mainly trachybasalts and basaltic trachyandesites. …”
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    Hainan mantle plume produced late Cenozoic basaltic rocks in Thailand, Southeast Asia
  3. 843
    “…Volcanic activity typically switches between high-activity states with many eruptions and low-activity states with few or no eruptions. …”
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    A simple two-state model interprets temporal modulations in eruptive activity and enhances multivolcano hazard quantification
  4. 844
    “…Hence, we propose the PGEs provide a new temporal correlation of CAMP volcanism to the ETE, corroborating the view that mass extinctions may be caused by volcanism.…”
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    Platinum-group elements link the end-Triassic mass extinction and the Central Atlantic Magmatic Province
  5. 845
    “…Indirect evidence of intense volcanism comes from Hg geochemistry: peaks of Hg concentrations have been found before and during the LOME, and have all been attributed to global volcanism in origin. …”
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    Different controls on the Hg spikes linked the two pulses of the Late Ordovician mass extinction in South China
  6. 846
    “…Semisopochnoi Island is a remote and little-studied volcanic island in the western part of the Aleutian Arc. …”
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    Structure of the magma plumbing system beneath Semisopochnoi Island (Aleutian Arc) inferred from seismic tomography
  7. 847
    “…Volcanics from outside the main Siberian Traps, e.g. …”
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    The main pulse of the Siberian Traps expanded in size and composition
  8. 848
    “…Monitoring volcanic phenomena is a key question, for both volcanological research and for civil protection purposes. …”
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    Long-Term Monitoring with Fiber Optics Distributed Temperature Sensing at Campi Flegrei: The Campi Flegrei Deep Drilling Project
  9. 849
    “…The distribution of volcanic ash in the coastal area will contribute to the investigations of future volcanic and coastal hazards.…”
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    A dataset for distribution and characteristics of Holocene pyroclastic fall deposits along the Pacific coasts in western Hokkaido, Japan
  10. 850
    “…There are no direct risks of proximity-related disasters in South Korea from the volcanic eruptions at Japan or Mt. Baekdu; however, severe impacts are expected from the spread of volcanic ash. …”
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    Development of PUFF–Gaussian dispersion model for the prediction of atmospheric distribution of particle concentration
  11. 851
    “…The Triassic volcanic rocks of Wrangellia erupted at an equatorial to tropical latitude that was within 3000 km of western North America. …”
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    Linking the Wrangellia flood basalts to the Galápagos hotspot
  12. 852
    “…Discovery of the layer indicates that the potash-bearing salt rocks could have taken in volcanic materials during these volcanic activities and provides the possibility of reliable zircon U‒Pb dating to determine the absolute age of the host rock, which is fundamental in studying the genetic mechanism of this deeply buried salt body.…”
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    A tuff interlayer in deep potash-bearing salt rocks and its implication for potash mineralization in the Simao Basin, southwestern China
  13. 853
    “…Our findings emphasise the significance of volcanic halogens for stratosphere chemistry and suggest that modelling of past and future volcanic impacts on Earth’s ozone, climate and ecosystems should systematically consider volcanic halogen emissions in addition to sulfur emissions.…”
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    Stratospheric Ozone destruction by the Bronze-Age Minoan eruption (Santorini Volcano, Greece)
  14. 854
    por Lin, Senhu, Hou, Lianhua, Luo, Xia, Wu, Yiwen
    Publicado 2022
    “…Results indicate that fewer plankton is preserved during tephra deposition than during periods of volcanic quiescence. With the decrease of volcanic activities and tephra deposition, the abundance of redox-sensitive trace elements (RSTEs) and biolimiting elements increases, while terrigenous elements gradually decrease, resulting in the improvement of organic matter (OM) preservation. …”
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    A millimeter-scale insight into formation mechanism of lacustrine black shale in tephra deposition background
  15. 855
    “…The use of volcanic ash layers for dating and correlation (tephrochronology) is widely applied in the study of past environmental changes. …”
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    First discovery of Holocene cryptotephra in Amazonia
  16. 856
    “…Volcanic activity is often accompanied by many small earthquakes. …”
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    Monitoring eruption activity using temporal stress changes at Mount Ontake volcano
  17. 857
    “…These variations can be explained by changes in the alignment of cracks or fluid inclusions beneath the volcanic area due to stress perturbations and the propagation of a hydrothermal fluid surge beneath the Hakone hydrothermal volcanic area. …”
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    Evidence of reactivation of a hydrothermal system from seismic anisotropy changes
  18. 858
    “…This age-range includes substantially younger pre-volcanic sedimentary rocks than the Jurassic to Miocene strata known from the older eastern islands and now reinstate the mantle-plume hypothesis as the most plausible explanation for Canary volcanism. …”
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    Nannofossils in 2011 El Hierro eruptive products reinstate plume model for Canary Islands
  19. 859
    por Savelli, Carlo
    Publicado 2015
    “…Extension and calc-alkaline volcanism of the submerged orogen of alpine age (OAA) initiated in Early Oligocene (~33/32 Ma) and reached the stage of oceanic opening in Early-Miocene (Burdigalian), Late-Miocene and Late-Pliocene. …”
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    Fast Episodes of West-Mediterranean-Tyrrhenian Oceanic Opening and Revisited Relations with Tectonic Setting
  20. 860
    “…The inputs of CO(2) along multiple sections combined with measurements of oceanic currents produced an estimated volcanic CO(2) flux = 6.0 10(5) ± 1.1 10(5 )kg d(−1) which is ~0.1% of global volcanic CO(2) flux. …”
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    Significant discharge of CO(2) from hydrothermalism associated with the submarine volcano of El Hierro Island
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