Spectroscopic investigation and theoretical modeling of kaolinite-group minerals and other low-temperature phases - INSU - Institut national des sciences de l'Univers Access content directly
Journal Articles Comptes Rendus Géoscience Year : 2011

Spectroscopic investigation and theoretical modeling of kaolinite-group minerals and other low-temperature phases

Abstract

This article summarizes some recent results obtained on the physical properties of environmental minerals, mostly kaolinite-group minerals and Fe- and Al-(hydr)oxides occurring in lateritic soils. The defective structure of these minerals, including impurities, stacking faults and radiation-induced defects, is probed using infrared spectroscopy and electron paramagnetic resonance. Resulting information bears on models of soil formation and transformation mechanisms of minerals in low-temperature environments. We underline the increasing impact of quantum chemical modeling in this field, providing straightforward interpretations of spectroscopic signals and overcoming the limits of fingerprint approaches. Importantly, the first-principles modeling of isotopic fractionation factors provides new links between mineralogical and geochemical investigations of secondary minerals.

Dates and versions

insu-03606500 , version 1 (11-03-2022)

Identifiers

Cite

Etienne Balan, Emmanuel Fritsch, Thierry Allard, Guillaume Morin, Maxime Guillaumet, et al.. Spectroscopic investigation and theoretical modeling of kaolinite-group minerals and other low-temperature phases. Comptes Rendus Géoscience, 2011, 343, pp.177-187. ⟨10.1016/j.crte.2010.10.006⟩. ⟨insu-03606500⟩
7 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More