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• W2944568509 abstract "The development of pore overpressure beneath high-crystallinity, low-permeability magma plugs is often inferred to be the cause of hazardous vulcanian explosions at many active arc volcanoes. Using a combination of porosity and permeability measurements and X-ray micro-tomographic reconstructions of ballistic bombs from the 2004–2010 explosions of Galeras volcano, Colombia, we document the micro-structural changes of the permeable porous network in high-crystallinity andesitic magma plugs resulting from natural viscous densification. Mean pore volumes, mean pore throat areas and the volumetric number density of connected pores and throats decline as connected porosity and permeability decrease. The mean pore coordination number and the volumetric number density of disconnected (isolated) voids also tend to decrease with decreasing porosity and permeability. The variance in pore volume and throat area decrease as a result of this densification process and tortuosity decreases slightly, demonstrating that the range of scales of structures performing gas transfer is reduced and the porous network undergoes viscous re-organisation. The reduction in tortuosity illustrates how permeability is reduced but maintained to low connected porosities, allowing plug formation to occur without creating large-scale pore overpressure within the plug. We characterise the relationships between key topological parameters and between connected porosity and permeability to facilitate future modelling of this process. Micro-tomographic reconstructions of a breadcrust bomb rind indicate that a deeper region with large pores, large throats, high pore volume and throat area variance and high tortuosity exists below low-permeability plugs, and this could represent a likely area for explosion-driving overpressure to develop following plug densification. A comparison of our porous micro-structure data with existing crystal micro-textures and glass volatile data from the same samples suggests that the average magma ascent and decompression rates ultimately control the efficiency of magma densification, the final plug permeability and the extent of degassing of the melt phase." @default.
• W2944568509 created "2019-05-16" @default.
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• W2944568509 date "2019-07-01" @default.
• W2944568509 modified "2023-09-30" @default.
• W2944568509 title "Constraints on the porosity, permeability and porous micro-structure of highly-crystalline andesitic magma during plug formation" @default.
• W2944568509 cites W1182927828 @default.
• W2944568509 cites W1609716229 @default.
• W2944568509 cites W1969826052 @default.
• W2944568509 cites W1972275555 @default.
• W2944568509 cites W1974765650 @default.
• W2944568509 cites W1975633231 @default.
• W2944568509 cites W1976132681 @default.
• W2944568509 cites W1977873148 @default.
• W2944568509 cites W1981084797 @default.
• W2944568509 cites W1986147553 @default.
• W2944568509 cites W1988143370 @default.
• W2944568509 cites W1989347390 @default.
• W2944568509 cites W1990664427 @default.
• W2944568509 cites W1994163940 @default.
• W2944568509 cites W2001266558 @default.
• W2944568509 cites W2003510744 @default.
• W2944568509 cites W2005592250 @default.
• W2944568509 cites W2007202111 @default.
• W2944568509 cites W2008981917 @default.
• W2944568509 cites W2017018804 @default.
• W2944568509 cites W2017770772 @default.
• W2944568509 cites W2025922680 @default.
• W2944568509 cites W2033230986 @default.
• W2944568509 cites W2034169203 @default.
• W2944568509 cites W2038639253 @default.
• W2944568509 cites W2044447886 @default.
• W2944568509 cites W2046083065 @default.
• W2944568509 cites W2049693080 @default.
• W2944568509 cites W2053135247 @default.
• W2944568509 cites W2057274687 @default.
• W2944568509 cites W2068493875 @default.
• W2944568509 cites W2072535043 @default.
• W2944568509 cites W2076923774 @default.
• W2944568509 cites W2081830829 @default.
• W2944568509 cites W2081934269 @default.
• W2944568509 cites W2082983568 @default.
• W2944568509 cites W2088634487 @default.
• W2944568509 cites W2089587803 @default.
• W2944568509 cites W2090776051 @default.
• W2944568509 cites W2091787893 @default.
• W2944568509 cites W2099540110 @default.
• W2944568509 cites W2102601954 @default.
• W2944568509 cites W2104757122 @default.
• W2944568509 cites W2110121950 @default.
• W2944568509 cites W2110743168 @default.
• W2944568509 cites W2112786819 @default.
• W2944568509 cites W2115456516 @default.
• W2944568509 cites W2122238107 @default.
• W2944568509 cites W2127240230 @default.
• W2944568509 cites W2128813971 @default.
• W2944568509 cites W2130680196 @default.
• W2944568509 cites W2133633311 @default.
• W2944568509 cites W2136246205 @default.
• W2944568509 cites W2140762031 @default.
• W2944568509 cites W2141423528 @default.
• W2944568509 cites W2142958528 @default.
• W2944568509 cites W2163780153 @default.
• W2944568509 cites W2295357465 @default.
• W2944568509 cites W2324036341 @default.
• W2944568509 cites W2335579287 @default.
• W2944568509 cites W2342280907 @default.
• W2944568509 cites W2395686080 @default.
• W2944568509 cites W2400811867 @default.
• W2944568509 cites W2404622240 @default.
• W2944568509 cites W2497711777 @default.
• W2944568509 cites W2502029798 @default.
• W2944568509 cites W2582412043 @default.
• W2944568509 cites W2587177791 @default.
• W2944568509 cites W2611039624 @default.
• W2944568509 cites W2734818192 @default.
• W2944568509 cites W2753136175 @default.
• W2944568509 cites W2761889840 @default.
• W2944568509 cites W2767279013 @default.
• W2944568509 cites W2781996865 @default.
• W2944568509 cites W2791627239 @default.
• W2944568509 cites W2791627302 @default.
• W2944568509 cites W2797600783 @default.
• W2944568509 cites W2803017168 @default.
• W2944568509 cites W2884385025 @default.
• W2944568509 cites W2903575016 @default.
• W2944568509 cites W2909626109 @default.
• W2944568509 cites W4239748937 @default.
• W2944568509 doi "https://doi.org/10.1016/j.jvolgeores.2019.05.001" @default.
• W2944568509 hasPublicationYear "2019" @default.
• W2944568509 type Work @default.

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