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  2. Volcano plot (statistics) - Wikipedia

    en.wikipedia.org/wiki/Volcano_plot_(statistics)

    This plot is colored such that those points having a fold-change less than 2 (log 2 = 1) are shown in gray. In statistics, a volcano plot is a type of scatter-plot that is used to quickly identify changes in large data sets composed of replicate data. [1] [2] It plots significance versus fold-change on the y and x axes

  3. Sabatier principle - Wikipedia

    en.wikipedia.org/wiki/Sabatier_principle

    Volcano plot for the decomposition of formic acid on transition metals. In chemistry, the Sabatier principle is a qualitative concept in heterogeneous catalysis named after the French chemist Paul Sabatier. It states that the interactions between the catalyst and the reactants should be "just right"; that is, neither too strong nor too weak. If ...

  4. Siberian Traps - Wikipedia

    en.wikipedia.org/wiki/Siberian_Traps

    Step-like geomorphology at the Putorana Plateau, which is a World Heritage Site.. The source of the Siberian Traps basaltic rock has been attributed to a mantle plume, which rose until it reached the bottom of the Earth's crust, producing volcanic eruptions through the Siberian Craton. [8]

  5. Volcanology - Wikipedia

    en.wikipedia.org/wiki/Volcanology

    Volcanology advances have required more than just structured observation, and the science relies upon the understanding and integration of knowledge in many fields including geology, tectonics, physics, chemistry and mathematics, with many advances only being able to occur after the advance had occurred in another field of science.

  6. Plate theory (volcanism) - Wikipedia

    en.wikipedia.org/wiki/Plate_theory_(volcanism)

    The global distribution of volcanic activity at a given time reflects the contemporaneous lithospheric stress field, and changes in the spatial and temporal distribution of volcanoes reflect changes in the stress field. The main factors governing the evolution of the stress field are: Changes in the configuration of plate boundaries.

  7. Volcanologist - Wikipedia

    en.wikipedia.org/wiki/Volcanologist

    A volcanologist, or volcano scientist, is a geologist who focuses on understanding the formation and eruptive activity of volcanoes. [1] Volcanologists frequently visit volcanoes, sometimes active ones, to observe and monitor volcanic eruptions , collect eruptive products including tephra (such as ash or pumice ), rock and lava samples.

  8. 1980 eruption of Mount St. Helens - Wikipedia

    en.wikipedia.org/wiki/1980_eruption_of_Mount_St...

    On March 20, at 3:45 pm Pacific Standard Time, a shallow, magnitude-4.2 earthquake centered below the volcano's north flank, [13] signaled the volcano's return from 123 years of hibernation. [14] A gradually building earthquake swarm saturated area seismographs and started to climax at about noon on March 25, reaching peak levels in the next ...

  9. Hotspot (geology) - Wikipedia

    en.wikipedia.org/wiki/Hotspot_(geology)

    The volcano erupted from 1983 to 2018 and is part of the Hawaiian–Emperor seamount chain. Mauna Loa is a large shield volcano. Its last eruption was in 2022 and it is part of the Hawaiian–Emperor seamount chain. Bowie Seamount is a dormant submarine volcano and part of the Kodiak-Bowie Seamount chain.