Jarosite (KFe3(SO4)2(OH)6) is a relatively common on Mars, but is typically found in mine wastes on Earth. By studying jarosite dissolution rates and reaction products in the laboratory, we can constrain how long water was active on the surface of Mars and help remediate mine waste on Earth.
Publications
Jarosite dissolution rates in perchlorate brine
Carey Legett IV, Brittany N Pritchett, Andrew S Elwood Madden, Charity M Phillips-Lander, Megan E Elwood Madden
Icarus, vol. 301, Academic Press, 2018, pp. 189--195
Effects of arsenic incorporation on jarosite dissolution rates and reaction products
Matthew R Kendall, Andrew S Madden, Megan E Elwood Madden, Qinhong Hu
Geochimica et Cosmochimica Acta, vol. 112, Pergamon, 2013, pp. 192--207
Na-jarosite dissolution rates: The effect of mineral composition on jarosite lifetimes
Shayda K Zahrai, Megan E Elwood Madden, Andrew S Madden, J Donald Rimstidt
Icarus, vol. 223, Academic Press, 2013, pp. 438--443
Jarosite dissolution rates and nanoscale mineralogy
ME Elwood Madden, AS Madden, JD Rimstidt, S Zahrai, MR Kendall, MA Miller
Geochimica et Cosmochimica Acta, vol. 91, Pergamon, 2012, pp. 306--321
AS Madden, VE Hamilton, ME Elwood Madden, PR Larson, MA Miller
Earth and Planetary Science Letters, vol. 298, Elsevier, 2010, pp. 377--384
Megan E Elwood Madden, Andrew S Madden, J Donald Rimstidt
Geology, vol. 37, Geological Society of America, 2009, pp. 635--638
Estimating Duration of Diagenesis at Meridiani Planum from Jarosite Dissolution Rates
Megan E ELWOOD MADDEN, S Andrew, J Donald RIMSTIDT
2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM, 2008
Jarosite as an indicator of water-limited chemical weathering on Mars
ME Elwood Madden, RJ Bodnar, JD Rimstidt
Nature, vol. 431, Nature Publishing Group UK London, 2004, pp. 821--823