HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Simonett, D. S. Articles by Bauleke, M. P. Search for Related Content PubMed Articles by Simonett, D. S. Articles by Bauleke, M. P. GeoRef GeoRef Citation Agricola Articles by Simonett, D. S. Articles by Bauleke, M. P.

Mineralogy of Soils on Basalt in North Queensland¹

ABSTRACT

Data from X-ray diffraction, elemental, differential thermal analyses, and differential dissolution were used to correlate the relationship between rainfall and clay mineral formation in the < 2 µ fraction of latosolic soils of North Queensland, Australia. Rainfall varied from 36 to 147 inches per year. Application of the weathering mean showed that the weathering intensity increased with increasing rainfall, being most pronounced in the surface layers. Poorly crystalline kaolinite is the dominant clay mineral (79 to 52%). Halloysite may be present in the higher rainfall areas. Total iron content moderately increased with rainfall (12 to 20%). No positive evidence for allophane was found. Gibbsite content varied (0 to 19%). The mineral composition of the silt fractions was also estimated.

¹ Joint contribution, Departments of Geography and Metallurgy and Materials Engineering, University of Kansas, Lawrence. This study was supported by a grant from the University of Kansas Research Fund. We are indebted to Dr. Keith Norrish for much advice during the course of this study.

² Associate Professor of Geography and Associate Professor of Metallurgy and Materials Engineering, respectively.

Received for publication December 13, 1961. Accepted for publication October 11, 1962.