Landscape response to the deposition of airfall pyroclastics from large explosive eruptions: An example from the campanian area (Southern Italy) |
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| Affiliation: | 1. Department of Environmental Engineering, Xi''an Jiaotong University, Xi''an 710049, China;2. College of Horticulture, North West Agriculture and Forestry University, Yangling 712100, China;3. Department of Energy and Mineral Engineering and EMS Energy Institute, The Pennsylvania State University, University Park, PA 16802, USA;1. Catchment to Reef Research Group, TropWATER, James Cook University, Townsville, Australia;2. Australian Rivers Institute, Griffith University, Brisbane, Australia;3. CSIRO Land and Water, GPO Box 1666, Canberra, Australia;4. CSIRO Land and Water, PO Box 2583, Brisbane, Australia;5. Department of Environment and Science, Rockhampton, Australia;6. CSIRO Land and Water, Townsville, Australia;7. Data61, CSIRO, PO Box 2583, Brisbane, Australia;8. Department of Environment and Science, PO Box 5078, Brisbane, Australia;1. College of Business Administration, King Saud University, Saudi Arabia;2. HEC Montréal, Montreal, Quebec H3T 2A7 Canada |
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| Abstract: | We present in this work data about a peculiar type of alluvial fans formed exclusively by volcaniclastic material from large explosive eruptions. Each alluvial fan results formed by the superimposition of several sedimentary bodies, each of them formed by quite homogeneous volcaniclastic material. Lithological analyses allow us to correlate each sedimentary body with the emplacement of pyroclastics from Phlegrean Fields or Somma-Vesuvius. The development of these alluvial fans is controlled by three main factors: area of dispersion of pyroclastics, morphological features of the supplying basin (i.e. mean slopes and area) and climate. Finally, we present an assessment of the minimum time needed for the complete remobilization of pyroclastics of Pomici di Base and Greenish eruptions. |
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