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Deep Biosignatures on Mars and Earth

Publications

Exogeoconservation: Protecting geological heritage on celestial bodies

Author(s): Jack J. Matthews, Sean McMahon
Published in: Acta Astronautica, Issue 149, 2018, Page(s) 55-60, ISSN 0094-5765
DOI: 10.1016/j.actaastro.2018.05.034

The Deep History of Earth's Biomass

Author(s): Sean McMahon, John Parnell
Published in: Journal of the Geological Society, 2018, Page(s) jgs2018-061, ISSN 0016-7649
DOI: 10.1144/jgs2018-061

A Field Guide to Finding Fossils on Mars

Author(s): S. McMahon, T. Bosak, J. P. Grotzinger, R. E. Milliken, R. E. Summons, M. Daye, S. A. Newman, A. Fraeman, K. H. Williford, D. E. G. Briggs
Published in: Journal of Geophysical Research: Planets, Issue 123/5, 2018, Page(s) 1012-1040, ISSN 2169-9097
DOI: 10.1029/2017je005478

Petrological evidence supports the death mask model for the preservation of Ediacaran soft-bodied organisms in South Australia

Author(s): Alexander G. Liu, Sean McMahon, Jack J. Matthews, John W. Still, Alexander T. Brasier
Published in: Geology, Issue 47/3, 2019, Page(s) 215-218, ISSN 0091-7613
DOI: 10.1130/g45918.1

A New Frontier for Palaeobiology: Earth's Vast Deep Biosphere


Published in: ISSN 0265-9247
DOI: 10.1002/bies.201900052

Reduction spheroids preserve a uranium isotope record of the ancient deep continental biosphere

Author(s): Sean McMahon, Ashleigh v. S. Hood, John Parnell, Stephen Bowden
Published in: Nature Communications, Issue 9/1, 2018, ISSN 2041-1723
DOI: 10.1038/s41467-018-06974-9

Sample Collection and Return from Mars: Optimising Sample Collection Based on the Microbial Ecology of Terrestrial Volcanic Environments

Author(s): Charles S. Cockell, Sean McMahon, Darlene S. S. Lim, John Rummel, Adam Stevens, Scott S. Hughes, Shannon E. Kobs Nawotniak, Allyson L. Brady, Viggo Marteinsson, Javier Martin-Torres, Maria-Paz Zorzano, Jesse Harrison
Published in: Space Science Reviews, Issue 215/7, 2019, ISSN 0038-6308
DOI: 10.1007/s11214-019-0609-7

Lifeless Martian samples and their significance

Author(s): Charles S. Cockell, Sean McMahon
Published in: Nature Astronomy, Issue 3/6, 2019, Page(s) 468-470, ISSN 2397-3366
DOI: 10.1038/s41550-019-0777-0

Earth’s earliest and deepest purported fossils may be iron-mineralized chemical gardens

Author(s): Sean McMahon
Published in: Proceedings of the Royal Society B, 2019, ISSN 1471-2954
DOI: 10.1098/rspb.2019.2410

Petrological evidence supports the death mask model for the preservation of Ediacaran soft-bodied organisms in South Australia: REPLY

Author(s): Alexander G. Liu, Sean McMahon, Jack J. Matthews, John W. Still, Alexander T. Brasier, Diana Marosi
Published in: Geology, Issue 47/8, 2019, Page(s) e474-e474, ISSN 0091-7613
DOI: 10.1130/g46519y.1

The chemistry of fossilization on Earth and Mars

Author(s): Sean McMahon
Published in: The Biochemist, Issue 40/6, 2018, Page(s) 28-32, ISSN 0954-982X
DOI: 10.1042/bio04006028