John Parnell

Summary

Affiliation: University of Aberdeen
Country: UK

Publications

  1. pmc Long term geological record of a global deep subsurface microbial habitat in sand injection complexes
    John Parnell
    School of Geosciences, University of Aberdeen, Aberdeen AB24 3UE, United Kingdom
    Sci Rep 3:1828. 2013
  2. pmc Ordovician ash geochemistry and the establishment of land plants
    John Parnell
    School of Geosciences, University of Aberdeen, Aberdeen, AB24 3UE, UK
    Geochem Trans 13:7. 2012
  3. pmc A demonstration of an affinity between pyrite and organic matter in a hydrothermal setting
    Paula Lindgren
    Department of Geographical and Earth Sciences, University of Glasgow, Glasgow G12 8QQ, UK
    Geochem Trans 12:3. 2011
  4. ncbi request reprint Fluid inclusion studies of chemosynthetic carbonates: strategy for seeking life on Mars
    John Parnell
    Department of Geology and Petroleum Geology, University of Aberdeen King s College, Aberdeen AB24 3UE, U K
    Astrobiology 2:43-57. 2002
  5. ncbi request reprint Mineral radioactivity in sands as a mechanism for fixation of organic carbon on the early Earth
    John Parnell
    Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen AB24 3UE, UK
    Orig Life Evol Biosph 34:533-47. 2004
  6. ncbi request reprint Searching for life on Mars: selection of molecular targets for ESA's aurora ExoMars mission
    John Parnell
    Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen, United Kingdom
    Astrobiology 7:578-604. 2007
  7. doi request reprint Early oxygenation of the terrestrial environment during the Mesoproterozoic
    John Parnell
    School of Geosciences, University of Aberdeen, Aberdeen AB24 3UE, UK
    Nature 468:290-3. 2010
  8. ncbi request reprint Weighing the deep continental biosphere
    Sean McMahon
    School of Geosciences, University of Aberdeen, Aberdeen, UK
    FEMS Microbiol Ecol 87:113-20. 2014
  9. doi request reprint The use of surface-enhanced Raman scattering for detecting molecular evidence of life in rocks, sediments, and sedimentary deposits
    Stephen A Bowden
    Department of Geology and Petroleum Geology, Kings College, University of Aberdeen, Aberdeen, UK
    Astrobiology 10:629-41. 2010
  10. doi request reprint Identification of morphological biosignatures in Martian analogue field specimens using in situ planetary instrumentation
    Derek Pullan
    Space Research Centre, Department of Physics and Astronomy, University of Leicester, Leicester, UK
    Astrobiology 8:119-56. 2008

Detail Information

Publications11

  1. pmc Long term geological record of a global deep subsurface microbial habitat in sand injection complexes
    John Parnell
    School of Geosciences, University of Aberdeen, Aberdeen AB24 3UE, United Kingdom
    Sci Rep 3:1828. 2013
    ..The measured examples of iron sulphide in injected sands extend back to the Proterozoic, and show that injected sand complexes have been a long-term environment for deep subsurface microbial colonization...
  2. pmc Ordovician ash geochemistry and the establishment of land plants
    John Parnell
    School of Geosciences, University of Aberdeen, Aberdeen, AB24 3UE, UK
    Geochem Trans 13:7. 2012
    ..In particular, high phosphorus levels in ash were favourable to plant growth. This may have allowed photosynthesizers to diversify and enlarge, and transform the surface of the planet...
  3. pmc A demonstration of an affinity between pyrite and organic matter in a hydrothermal setting
    Paula Lindgren
    Department of Geographical and Earth Sciences, University of Glasgow, Glasgow G12 8QQ, UK
    Geochem Trans 12:3. 2011
    ..This study points to an example from a hydrothermal setting in the geological record, demonstrating that pyrite can have a high potential for the concentration and accumulation of organic materials...
  4. ncbi request reprint Fluid inclusion studies of chemosynthetic carbonates: strategy for seeking life on Mars
    John Parnell
    Department of Geology and Petroleum Geology, University of Aberdeen King s College, Aberdeen AB24 3UE, U K
    Astrobiology 2:43-57. 2002
    ..The crushing of bulk samples could release inclusion waters for analysis, which could be undertaken in situ on Mars...
  5. ncbi request reprint Mineral radioactivity in sands as a mechanism for fixation of organic carbon on the early Earth
    John Parnell
    Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen AB24 3UE, UK
    Orig Life Evol Biosph 34:533-47. 2004
    ..The organic accretion process could have occurred at the surface or in the sub-surface, and is independent of a terrestrial or extraterrestrial source for the carbon...
  6. ncbi request reprint Searching for life on Mars: selection of molecular targets for ESA's aurora ExoMars mission
    John Parnell
    Department of Geology and Petroleum Geology, University of Aberdeen, Aberdeen, United Kingdom
    Astrobiology 7:578-604. 2007
    ..Analyzing regolith samples will allow for the search of both extant and fossil biomarkers, but sequential extraction would be required to optimize the analysis of each of these in turn...
  7. doi request reprint Early oxygenation of the terrestrial environment during the Mesoproterozoic
    John Parnell
    School of Geosciences, University of Aberdeen, Aberdeen AB24 3UE, UK
    Nature 468:290-3. 2010
    ....
  8. ncbi request reprint Weighing the deep continental biosphere
    Sean McMahon
    School of Geosciences, University of Aberdeen, Aberdeen, UK
    FEMS Microbiol Ecol 87:113-20. 2014
    ....
  9. doi request reprint The use of surface-enhanced Raman scattering for detecting molecular evidence of life in rocks, sediments, and sedimentary deposits
    Stephen A Bowden
    Department of Geology and Petroleum Geology, Kings College, University of Aberdeen, Aberdeen, UK
    Astrobiology 10:629-41. 2010
    ....
  10. doi request reprint Identification of morphological biosignatures in Martian analogue field specimens using in situ planetary instrumentation
    Derek Pullan
    Space Research Centre, Department of Physics and Astronomy, University of Leicester, Leicester, UK
    Astrobiology 8:119-56. 2008
    ....
  11. ncbi request reprint Raman spectroscopic analysis of cyanobacterial gypsum halotrophs and relevance for sulfate deposits on Mars
    Howell G M Edwards
    Chemical and Forensic Sciences, School of Pharmacy, University of Bradford, Bradford BD7 1DP, UK
    Analyst 130:917-23. 2005
    ....