R. A. Brooker

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Noble-gas geochemistry is an important tool for understanding planetary processes from accretion to mantle dynamics and atmospheric formation. Central to much of the modelling of such processes is the crystal-melt partitioning of noble gases during mantle melting, magma ascent and near-surface degassing. Geochemists have traditionally considered the 'inert'(More)
Interactions between crustal and mantle reservoirs dominate the surface inventory of volatile elements over geological time, moderating atmospheric composition and maintaining a life-supporting planet. While volcanoes expel volatile components into surface reservoirs, subduction of oceanic crust is responsible for replenishment of mantle reservoirs. Many(More)
1. H~>~B*,~N, C. L, TranslM;ion to and from Po]ish notation. Comp'ut. J. 5 (Oct. 1962), 210--213. 2. ALI, ARD, 1C W., WO~,F, t(. A., ~ND Z~:~ILLX, R.A. Some effects of the 6600 computer o~ language structures. Comm. ACM 7, 2 (Feb. 1964), 112-119. 3. Hn~m~m~A~, ]1. Parallel processing of algebraic expresskms. IEEE Trans. ECJ5,1 (Fel). 1966), 82-90. 4. SQumn,(More)
The Ethiopian Rift Valley hosts the longest record of human co-existence with volcanoes on Earth, however, current understanding of the magnitude and timing of large explosive eruptions in this region is poor. Detailed records of volcanism are essential for interpreting the palaeoenvironments occupied by our hominin ancestors; and also for evaluating the(More)
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