Opportunity Finds Blueberry "Patch"on Mars
NASA Mars Rover Opportunity Reveals Geological Mystery:
Spherical Objects Unlike Previously Found 'Blueberries'
ScienceDaily, September 14, 2012)
http://www.sciencedaily.com/releases/2012/09/120914154003.htm
Puzzling Little Martian Spheres That Don't Taste Like
'Blueberries', NASA picture
http://www.nasa.gov/mission_pages/mer/multimedia/pia16139.html
http://photojournal.jpl.nasa.gov/catalog/PIA05564
NASA Mars rover finds a crunchy 'blueberry' surprise
New Scientist, Septemebr 15, 2012
http://www.newscientist.com/blogs/shortsharpscience/2012/09/mars-rover-finds-a-crunchy-blu.html
Mars 'Blueberries': Iron Baubles Spotted By NASA
Opportunity Rover, Suggests Life Existed On Red
Planet, Huffington Post, Sept. 14, 2012
http://www.huffingtonpost.com/2012/09/14/mars-iron-blueberries-indicates-presence-life_n_1882138.html
A possibly related paper is:
Weber, K. A., T. L. Spanbauer, D. Wacey, M. R. Kilburn,
D. B. Loope, and R. M. Kettler, 2012, Biosignatures link
microorganisms to iron mineralization in a paleoaquifer.
Geology. vol. 40, no. 8, pp. 747-750.
http://geology.gsapubs.org/content/40/8/747.abstract
PDF file at http://www.geosciences.unl.edu/~dloope/pdf/Weber2012.pdf
Best wishes,
Paul H.
