John Parnell

Impact-generated hydrothermal systems on Earth and Mars

G. R. Osinski, L. L. Tornabene, Neil R. Banerjee et al. · Icarus · 2012 · 290 citations

Engineering, Geology, Impact-generated Hydrothermal Systems +5

Weighing the deep continental biosphere

Sean McMahon, John Parnell · FEMS Microbiology Ecology · 2013 · 267 citations · Full text

Cell Carbon Content, Organic Geochemistry, Biogeochemistry +15

Groundwater activity on Mars and implications for a deep biosphere

J. R. Michalski, Javier Cuadros, P. B. Niles et al. · Nature Geoscience · 2013 · 255 citations

Engineering, Subsurface Hydrology, Martian Exploration +4

Searching for Life on Mars: Selection of Molecular Targets for ESA's Aurora ExoMars Mission

John Parnell, David C. Cullen, M. R. Sims et al. · Astrobiology · 2007 · 193 citations · Full text

Engineering, Molecular Targets, Organic Geochemistry +19

Methane-related authigenic carbonates from the Black Sea: geochemical characterisation and relation to seeping fluids

Adriano Mazzini, M.K. Ivanov, John Parnell et al. · Marine Geology · 2004 · 129 citations

Organic Geochemistry, Methane-related Authigenic Carbonates, Chemical Oceanography +11