Iron Oxides in Selected Brazilian Oxisols: I. Mineralogy

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Abstract
Twelve Oxisols from the Triangulo Mineiro region, Minas Gerais state, Brazil, derived from four different parent materials were studied to provide insight into their Fe‐oxide mineralogy. The clay fraction (kkl ) of some hematite samples determined from DXRD showed preferential crystal development in the X‐Y direction, suggesting a platy nature.
Funding Information
  • National Science Foundation (EAR‐850656)