NDLI: Factors controlling lava dome morphology

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Factors controlling lava dome morphology

Content Provider	NASA Technical Reports Server (NTRS)
Author	Fink, Jonathan Bridges, Nathan Griffiths Sr., Ross
Copyright Year	1991
Description	Research suggests that variations in lava dome morphology on different planets will depend much more critically on local gravity and the style of eruption than on the magma composition, ambient temperature, or the relative roles of convective and radiative cooling. Eruption style in turn reflects differences in tectonic conditions and the ability of magma to exsolve volatiles. Observed crude correlations between silica content and calculated yield strengths for terrestrial lava flows and domes probably are do to differences in extrusion rate and volatile solubility, rather than intrinsic rheological properties. Thus, even after taking the known effect of gravity into account, observed differences in gross dome morphology on different planets cannot by themselves be directly related to composition. Additional information such as the distribution of surface textures and structures, or spectroscopic data will be needed to conclusively establish dome compositions.
File Size	162108
Page Count	2
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19920001574
Archival Resource Key	ark:/13960/t8md3tz5r
Language	English
Publisher Date	1991-06-01
Access Restriction	Open
Subject Keyword	Lunar And Planetary Exploration Convective Heat Transfer Spectroscopy Correlation Gravitation Lava Rheology Solubility Fluid Flow Tectonics Magma Silicon Dioxide Textures Venus Planet Gravitational Effects Planetary Geology Morphology Venus Surface Extruding Yield Strength Volcanoes Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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