@article{fdi:010040697,
  title = {{L}ow temperature magnetism and {M}ossbauer spectroscopy study from natural goethite},
  author = {{B}erquo, {T}. {S}. and {I}mbernon, {R}. {A}. {L}. and {B}lot, {A}lain and {F}ranco, {D}. {R}. and {T}oledo, {M}. {C}. {M}. and {P}artiti, {C}. {S}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n this work a magnetic characterization was made of natural goethite from {B}urkina {F}aso, {A}frica, by using low temperature magnetization curves, hysteresis loops, {M}ossbauer spectroscopy at room temperature and 4.2 {K}, and {AC} susceptibility from 10 to 400 {K}. {T}he samples are from two distinct geological sites that underwent different weathering processes. {A}ll measurements point to the occurrence of typical high coercivity goethite. {T}hrough {M}ossbauer spectroscopy sample {BL}44, from {G}angaol, northeast {B}urkina {F}aso showed relaxation effects due to a wide distribution of grain size, including superparamagnetism threshold. {AC} susceptibility also supports this interpretation. {T}he sample {BL}50 from {B}onga in {B}urkina {F}aso is associated with lateritic {N}i and in addition to goethite this sample also contained magnetite, as determined by {V}erwey transition in low temperature measurements as well as a small content of hematite identified by {M}ossbauer spectroscopy.},
  keywords = {{G}oethite ; {G}ossans ; {M}agnetization ; {AC} susceptibility ; {M}ossbauer spectroscopy},
  booktitle = {},
  journal = {{P}hysics and {C}hemistry of {M}inerals},
  volume = {34},
  numero = {5},
  pages = {287--294},
  ISSN = {0342-1791},
  year = {2007},
  DOI = {10.1007/s00269-007-0147-9},
  URL = {https://www.documentation.ird.fr/hor/fdi:010040697},
}