[4] Cornell R M, Schwertmann U. The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses: John Wiley & Sons, 2006.

[6] Scheinost A C, Chavernas A, Barron V, et al. Clays and Clay Minerals, 1998, 46(5): 528.

[7] Deaton B C, Balsam W L. Journal of Sedimentary Research, 1991, 61(4) : 628.

[9] Ji J, Balsam W, Chen J, et al. Clays and Clay Minerals, 2002, 50(2): 208.

[10] Balan E, Saitta A M, Mauri F, et al. American Mineralogist, 2001, 86(11-12): 1321.

[11] Torrent J, Barrón V, Liu Q. Geophysical Research Letters, 2006, 33(2): 401.

[12] Barranco F T, Balsam W L, Deaton B C. Marine Geology, 1989, 89(3): 299.