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AGU: Geophysical Research Letters

 

Keywords

  • Martian sulfates
  • evaporite
  • sedimentary deposits

Index Terms

  • Planetary Sciences: Solar System Objects: Mars
  • Planetary Sciences: Solid Surface Planets: Surface materials and properties
  • Planetary Sciences: Solid Surface Planets: Erosion and weathering
  • Planetary Sciences: Solid Surface Planets: Hydrology and fluvial processes

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 35, L06308, 4 PP., 2008
doi:10.1029/2007GL032710

A model of volcanic magma transport by fracturing stress mechanisms

E. Piegari

Dipartimento di Scienze Fisiche, Università di Napoli “Federico II,” Naples, Italy

INFN, Naples, Italy

V. Cataudella

Dipartimento di Scienze Fisiche, Università di Napoli “Federico II,” Naples, Italy

Coherentia-CNR-INFM, Naples, Italy

R. Di Maio

Dipartimento di Scienze della Terra, Università di Napoli “Federico II,” Naples, Italy

L. Milano

Dipartimento di Scienze Fisiche, Università di Napoli “Federico II,” Naples, Italy

INFN, Naples, Italy

M. Nicodemi

Dipartimento di Scienze Fisiche, Università di Napoli “Federico II,” Naples, Italy

Coherentia-CNR-INFM, Naples, Italy

R. Scandone

Dipartimento di Fisica, Università di Roma Tre, Rome, Italy

Understanding the mechanisms of magma ascent preceding eruptions, and in particular the subvolcanic system that stores and transports magma to the surface, is of crucial relevance for hazard and risk assessment. We propose here a statistical model describing the rise of magma from the reservoir through the transport region via stress induced fracturing mechanisms of the medium. The model reproduces the general statistical properties of erupted volume, P(V), and inter-eruption time, P(t), found in catalogue data for closed conduit volcanoes. We also investigate conditional distribution (e.g., the probability, P(V∣t), to have a volume, V, erupted after a waiting time, t), which can have important practical implications.

Received 27 November 2007; accepted 20 February 2008; published 22 March 2008.

Citation: Piegari, E., V. Cataudella, R. Di Maio, L. Milano, M. Nicodemi, and R. Scandone (2008), A model of volcanic magma transport by fracturing stress mechanisms, Geophys. Res. Lett., 35, L06308, doi:10.1029/2007GL032710.

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