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Flow Direction Determination of Lava Flows
Geological Society of America Bulletin, 1972The flow direction technique, previously applied to ash-flow sheets, can be used to determine direction of movement and locate eruptive centers for lava flows. The method provides statistically stronger and more consistent flow direction data for lava than ash-flow tuff.
EUGENE I. SMITH, RODNEY C. RHODES
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Geological Society, London, Special Publications, 2015
Abstract Prediction of the emplacement of volcanic mass flows (lava flows, pyroclastic density currents, debris avalanches and debris flows) is required for hazard and risk assessment, and for the planning of risk-mitigation measures. Numerical computer-based models now exist that are capable of approximating the motion of a given volume of ...
Cordonnier, B., Lev, E., Garel, Fanny
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Abstract Prediction of the emplacement of volcanic mass flows (lava flows, pyroclastic density currents, debris avalanches and debris flows) is required for hazard and risk assessment, and for the planning of risk-mitigation measures. Numerical computer-based models now exist that are capable of approximating the motion of a given volume of ...
Cordonnier, B., Lev, E., Garel, Fanny
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Geological Magazine, 1931
For many years composite minor intrusions, both sills and dykes, have been known from various parts of the world and most petrologists must have speculated as to the probable effect produced in the event of such composite intrusions having reached the surface in the form of an effusion.
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For many years composite minor intrusions, both sills and dykes, have been known from various parts of the world and most petrologists must have speculated as to the probable effect produced in the event of such composite intrusions having reached the surface in the form of an effusion.
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Journal of Geophysical Research, 1972
Extensive lava flows, like those of the Columbia plateau of Washington state, require thicknesses only of the order of meters and temperatures only slightly above the melting point to spread over distances of the order of hundreds of kilometers. Other things being equal, the spreading distance is proportional to the cube of the thickness of the flow.
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Extensive lava flows, like those of the Columbia plateau of Washington state, require thicknesses only of the order of meters and temperatures only slightly above the melting point to spread over distances of the order of hundreds of kilometers. Other things being equal, the spreading distance is proportional to the cube of the thickness of the flow.
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The Formation of Basaltic Lava Flows
The Journal of Geology, 1937The basaltic lava flows of Mount Lassen and the Hawaiian Islands have three distinguishable surface textures. Aa lava has a texture resembling that of broken scoria, block lava has broken cleanly after congealing, and pahoehoe has a relatively smooth surface. Aa lava with channels is usually found on the steeper slopes, while pahoehoe lava with tunnels
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European Journal of Mechanics - B/Fluids, 2014
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Thermal history and emplacement mechanisms of Theo's Flow lava: a proxy for Martian lava flows
2020Terrestrial analogues are often investigated to get insights into the geological processes occurring on other planetary bodies. The pyroxenitic layer of the 120m-thick magmatic pile Theo's Flow (Archean Abitibi greenstone belt Ontario, Canada), due to its petrological similarities, has always been regarded as the terrestrial analogue for Martian ...
Mara Murri1 +9 more
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Numerical modeling of lava flows at Mount Etna: Influence of lava rheology on flow morphology
Numerical modelling is an essential approach for investigating the rheological, thermal, and dynamical processes that control lava flow behaviour. In this study, we present a numerical analysis of lava flows emplaced during the 6–8 December 2015 eruption of Mount Etna, employing a shallow-water-approximation model solved using a finite-volume method ...Alik Ismail-Zadeh +2 more
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