A new mechanism for the magnetic enhancement of hematite during heating: the role of clay minerals

Ao H., Dekkers M.J., Deng C.L. and Zhu R.X., 2009. Palaeclimatic significance of the Xiantai fluvio-lacustrine sequence in the Nihewan Basin (North China), based on rock magnetic properties and clay mineralogy. Geophys. J. Int., 177, 913–924.

Ao H., Deng C.L., Dekkers M.J. and Liu Q.S., 2010. Magnetic mineral dissolution in Pleistocene fluvio-lacustrine sediments, Nihewan Basin (North China). Earth Planet. Sci. Lett., 292, 191–200.

Biscaye B.E., 1965. Mineralogy and sedimentation of recent Deep-Sea clay in the Atlantic Ocean and adjacent seas and oceans. Geol. Soc. Am. Bull., 76, 803–832.

Boslough M.B., Venturini E.L., Morosin B. and Graham R.A., 1986. Physical properties of shocked and thermally altered nontronite: Implications for the martian surface. J. Geophys. Res., 91, E207–E214.

Chamley H., 1989. Clay Sedimentology. Spring-Verlag, Berlin, Heidelberg, New York.

Dearing J.A., Hay K.L., Baban S.M.J., Huddleston A.S., Wellington E.M.H. and Loveland P.J., 1996. Magnetic susceptibility of soil: an evaluation of conflicting theories using a national data set. Geophys. J. Int., 127, 728–734.

Deng C.L., Zhu R.X., Verosub K.L., Singer M.J. and Vidic N.J., 2004. Mineral magnetic properties of loess/paleosol couplets of the central loess plateau of China over the last 1.2 Myr. J. Geophys. Res., 109, B01103.

Dunlop D.J. and Özdemir Ö., 1997. Rock Magnetism: Fundamentals and Frontiers. Cambridge University Press, Cambridge, U.K.

Ehrmann W., 1998. Implications of late Eocene to early Miocene clay mineral assemblages in McMurdo Sound (Ross Sea, Antarctica) on paleoclimate and ice dynamics. Palaeogeogr. Palaeoclimatol. Palaeoecol., 139, 213–231.

Gavin P. and Chevrier V., 2010. Thermal alteration of nontronite and montmorillonite: Implications for martian surface. Icarus, 208, 721–734.

Hanesch M., Stanjek H. and Petersen N., 2006. Thermomagnetic measurements of soil iron minerals the role of organic carbon. Geophys. J. Int., 165, 53–61.

Hirt A.M., Banin A. and Gehring A.U., 1993. Thermal generation of ferromagnetic minerals from iron-enriched smectites. Geophys. J. Int., 115, 1161–1168.

Hviid S.F., Agerkvist D.P., Olsen M., Koch C.B. and Madsen M.B., 1994. Heated nontronite: Possible relations to the magnetic phases in the martian soil. Hyperfine Interact., 91, 529–533.

Jacobs M.B. and Hay J.D., 1972. Paleoclimatic events indicated by mineralogical changes in deepsea sediments. J. Sediment. Petrol., 42, 889–898.

Jiménez-Espinosa R. and Jiménez-Millán J., 2003. Calcrete development in mediterranean colluvial carbonate systems from SE Spain. J. Arid. Environ., 53, 479–489.

Jordanova D., Hoffmann V. and Fehr K.T., 2004. Mineral magnetic charaterization of anthropogenic magnetic phases in the Danube river sediments (Bulgarian part). Earth Planet. Sci. Lett., 221, 71–89.

Keller W.D., 1970. Environmental aspects of clay minerals. J. Sediment. Res., 4, 788–813.

Kobayashi K. and Fuller M., 1968. Stable remanence and memory of multi-domai materials with special referece to magnetite. Philos. Mag., 18, 601–625.

Lan X.H., 1990. Clay minerals as an index of paleoclimate. Geol. Sci. Tech. Info., 9(4), 31–35.

Le Borgne E., 1955. Susceptinilité magnétique anormal de sol superficial. Ann. Geophys., 11, 399–419 (in French).

Liu Q.S., Deng C.L., Yu Y.J., Torrent J., Jackson M.J., Banerjee S.K. and Zhu R.X., 2005. Temperature dependence of magnetic susceptibility in an argon environment: implications for pedogenesis of Chinese loess palaeosols. Geophys. J. Int., 161, 102–112.

Maldonado A. and Stanley D.J., 1981. Clay mineral distribution pattern as influenced by depositional processes in the southeastern Levantine Sea. Sedimentology, 28, 21–32.

Moskowitz B.M. and Hargraves R.B., 1984. Magnetic cristobalite: A possible new magnetic phases produced by the thermal decomposition of nontronite. Science, 225, 1152–1154.

Oches E.A. and Banerjee S.K., 1996. Rock-magnetic proxies of climate change from loess-paleosol sediments of the Czech Republic. Stud. Geophys. Geod., 40, 287–300.

Petrovský E. and Kapička A., 2006. On determination of the Curie point from thermomagnetic curves. J. Geophys. Res., 111, B12S27.

Proust D., Eymery J.P. and Beaufort D., 1986. Supergene vermiculitization of a magnesian chlorite: iron and magnesium removal processes. Clays Clay Miner., 34, 572–580.

Rivera-Jimenez S.M., Lehner M.M., Cabrera-Lafaurie W.A. and Hernández-Maldonado A.J., 2011. Removal of naproxen, salicylic acid, clofibric acid, and carbamazepine by water phase adsorption onto inorganic-organic-intercalated bentonites modified with transition metal cations. Environ. Eng. Sci., 28(3), 171–181.

Roberts A.P., Cui Y.L. and Verosub K.L., 1995. Wasp-waisted hystersis loops: Mineral magnetic characteristics and discrimination of components in mixed magnetic systems. J. Geophys. Res., 100(B9), 17909–17924.

Rowan C.J. and Roberts A.P., 2006. Magnetite dissolution, diachronous greigite formation, and secondary magnetizations from pyrite oxidation: Unravelling complex magnetizations in Neogene marine sediments from New Zealand. Earth Planet. Sci. Lett., 241, 119–137.

Singer A., 1984. The paleoclimatic interpretion of clay minerals in sediments — a review. Earth Sci. Res., 21, 251–293.

Tang Y.J., Jia J.Y. and Xie X.D., 2002. Environmental significance of clay minerals. Earth Sci. Front., 9, 337–344.

Tarduno J.A., 1995. Superparamagnetism and reduction diagenesis in pelagic sediments: Enhancement or depletion? Geophys. Res. Lett., 22, 1337–1340.

Taylor K.G.G., 1996. Pedogenic clay mineral transformation in the Weald Basin: implications for Early Cretaceous hinterland climate reconstructions. Cretac. Res., 17, 103–108.

Temgoua E., Pfeifer H. and Bitom D., 2003. Trace element differentiation in ferruginous accumulation soil patterns under tropical rainforest of southern Cameroon, the role of climatic change. Sci. Total Environ., 303, 203–214.

Tite M.S. and Linington R.E., 1975. Effect of climate on the magnetic susceptibility of soils. Nature, 256, 565–566.

Torrent J., Barrón V. and Liu Q.S., 2006. Magnetic enhancement is linked to and precedes hematite formation in aerobic soil. Geophy. Res. Lett., 33, L02401.

Townsend M.G., Longworth G. and Kodama H., 1986. Magnetic interaction at low temperature in chlorite and its products of oxidation: a Mössbauer investigation. Can. Mineral., 24, 105–115.

Wagner U., Murad E., Knorr W. and Wagner F.E., 1990. Mossbauer study of illitic clays containing iron-rich impurities. Hyperfine Interact., 57, 2313–2318.

Zhang C.X., Huang B.C. and Liu Q.S., 2009. Magnetic properties of different receptors around steel plants and their environmental significance. Chinese J. Geophys.-Chinese Ed., 52, 2826–2839.

Zhang C.X., Liu Q.S., Huang B.C. and Su Y.L., 2010. Magnetic enhancement upon heating of environmentally polluted samples containing haematite and iron. Geophys. J. Int., 181, 1381–1394.

Zhang C.X., Qiao Q.Q., Piper J.D.A. and Huang B.C., 2011. Assessment of heavy metal pollution from a Fe-smelting plant in urban river sediments using environmental magnetic and geochemical methods. Environ. Pollut., 159, 3057–3070.

Zheng Y. and Zhang S.H., 2008. Magnetic properties of street dust and topsoil in Beijing and its environmental implications. Chinese Sci. Bull., 53, 408–417.