How strongly do plumes influence Pacific seamount distribution?

نویسندگان

چکیده

Seamounts are submarine volcanoes postulated to be formed either by hot mantle plumes rising from the deep or shallow, plate-related processes. However, relative importance of these two mechanisms has not hitherto been quantified. In this study, applying Gaussian Process regression reconstruct irregular seamount topography above and under sedimentary layer, we calculate an accurate map volcanism distribution within Pacific plate. We find that previous erupted volumes have underestimated 75% on average. Our results show (1) total volume plume-related makes up only 18% intraplate volcanism, (2) statistics for seamounts those along Large Low-Shear-Velocity Province margins nearly indistinguishable rest seamounts. conclude proposed account a minority in plate, implying shallow rather than processes dominant.

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ژورنال

عنوان ژورنال: Earth and Planetary Science Letters

سال: 2022

ISSN: ['1385-013X', '0012-821X']

DOI: https://doi.org/10.1016/j.epsl.2022.117786