نتایج جستجو برای: pyroclastic

تعداد نتایج: 1031  

Journal: :Icarus 2022

The pyroclastic deposits on Mercury are proof of explosive volcanism that occurred the innermost planet Solar System; usually characterized by a central pit (vent) surrounded spectrally bright and red deposit (facula). were mainly identified analysing images acquired from MDIS onboard MESSENGER mission, which revealed about 200 deposits. In this work, we focus identification applying spectral c...

Journal: :The Journal of the Geological Society of Japan 1991

Journal: :Geological Society of America Bulletin 2023

We present the late Holocene eruption history of poorly known Doña Juana volcanic complex, in SW Colombia, which last erupted twentieth century. This represents a case study for potentially active volcanism rural Northern Andes, where tropical climate conditions and fragmented social memory blur record dormant volcanoes. reconstructed stratigraphy central-summit vent area by integrating new map...

Journal: :Bulletin of Volcanology 2021

Abstract Numerical results of a two-layer depth-averaged model pyroclastic density currents (PDCs) were compared with an experimental PDC generated at the international eruption simulator facility (the Pyroclastic flow Eruption Large-scale Experiment (PELE)) to establish minimal dynamical PDCs stratification particle concentrations. In present model, in is modeled as voluminous suspended-load l...

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