Lava Flows and Domes

1. Front Matter

   Pages I-XI

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2. Silicic Lava Domes

   1. Front Matter

      Pages 1-1

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   2. Regularities in Growth of the Mount St. Helens Dacite Dome, 1980–1986

      • D. A. Swanson, R. T. Holcomb

      Pages 3-24

   3. The Development and Distribution of Surface Textures at the Mount St. Helens Dome

      • S. W. Anderson, J. H. Fink

      Pages 25-46

   4. Lava Domes Modeled as Brittle Shells that Enclose Pressurized Magma, with Application to Mount St. Helens

      • R. M. Iverson

      Pages 47-69

   5. A Model for Dome Eruptions at Mount St. Helens, Washington Based on Subcritical Crack Growth

      • R. P. Denlinger

      Pages 70-87

   6. Viscoplastic Models of Lava Domes

      • S. Blake

      Pages 88-126

3. Mafic Lava Flow

   1. Front Matter

      Pages 127-127

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   2. Surfaces of Aa Flow-Fields on Mount Etna, Sicily: Morphology, Rheology, Crystallization and Scaling Phenomena

      • C. Kilburn

      Pages 129-156

   3. Longitudinal Variations in Rheological Properties of Lavas: Puu Oo Basalt Flows, Kilauea Volcano, Hawaii

      • J. H. Fink, J. Zimbelman

      Pages 157-173

   4. Numerical Simulation of Lava Flows on Some Volcanoes in Japan

      • K. Ishihara, M. Iguchi, K. Kamo

      Pages 174-207

   5. On the Mechanisms of Lava Flow Emplacement and Volcano Growth: Arenal, Costa Rica

      • A. Borgia, S. R. Linneman

      Pages 208-243

4. Back Matter

   Pages 245-249

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This collection of papers is based on a symposium held in 1987 at the Interna­ tional Union of Geology and Geodesy Congress in Vancouver, British Colum­ bia. The Symposium was planned as a follow-up to a session at the 1984 Geo­ logical Society of America Annual Meeting in Reno, Nevada, which dealt with the emplacement of silicic lava domes. In both cases, emphasis was placed on the physical and mechanical rather than chemical aspects of lava flow. The IUGG Symposium consisted of two lecture sessions, a poster session, and two discussion periods, and had 22 participants. The contributions to this volume are all based on papers presented in the various parts of the Sym­ posium. The motivation for studying lava flow mechanics is both practical and scientific. Scientists and government agencies seek to more effectively predict the hazards associated with active lavas. Recovering mineral resources found in lava flows and domes also requires an understanding of their emplacement. From a more theoretical standpoint, petrologists view lava studies as a way to directly observe the rheologic consequences of mixing crystals, bubbles, and solid blocks of country rock with silicate liquids. This information can then be used to constrain processes occurring in the concealed conduits, dikes, and chambers that feed flows and domes on the surface.

• Deformation
• Mafic
• formation
• growth
• lava
• magma
• morphology
• ore deposit
• volcano

• Department of Geology, Arizona State University, Tempe, USA

  Jonathan H. Fink

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