The mineralogy and geochemistry of a nickeliferous laterite profile (Greenvale, Queensland, Australia)

Zeissink H.E. (1969) The mineralogy and geochemistry of a nickeliferous laterite profile (Greenvale, Queensland, Australia). Mineralium Deposita, 4 2: 132-152. doi:10.1007/BF00208049


Author Zeissink H.E.
Title The mineralogy and geochemistry of a nickeliferous laterite profile (Greenvale, Queensland, Australia)
Journal name Mineralium Deposita   Check publisher's open access policy
ISSN 0026-4598
Publication date 1969-01-01
Sub-type Article (original research)
DOI 10.1007/BF00208049
Volume 4
Issue 2
Start page 132
End page 152
Total pages 21
Publisher Springer-Verlag
Subject 1906 Geochemistry and Petrology
1908 Geophysics
Abstract A laterite profile on serpentinite at Greenvale, Australia, has been investigated in order to elucidate the formation of the secondary minerals and the trace element behaviour during tropical weathering. Mineralogical and chemical studies indicate that the serpentine alters to montmorillonite, aluminous goethite, and quartz. Chromiferous chlorite, a stable component, becomes concentrated in the weathering profile. No members of the kaolin group or bauxite group were identified, and the alumina occurs chiefly in solid solution with the goethite. In the upper levels of the profile serpentine and mont-morillonite disappear completely, and the amount of alumina substituting in the goethite increases. With increasing depth the Fe2O3 and Al2O3 content falls, whereas SiO2 and MgO increase. This is in accordance with the usual trends of lateritic weathering. The trace elements Ni, Co, Mn, Cu and Cr are all concentrated during the weathering process. Evidence suggests that Ni is associated with goethite, and possibly is incorporated in the lattice of this mineral. No appreciable nickel is associated with the manganese minerals. The concentration of Cr takes place mainly through the increase of the stable chromiferous chlorite.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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Created: Sat, 09 Jul 2016, 17:05:02 EST by System User