My Account: Log In | Join | Renew
Search
Author
Title
Vol.
Issue
Year
1st Page

Abstract

 

This article in SSSAJ

  1. Vol. 37 No. 4, p. 644-646
     
    Received: Aug 21, 1972
    Published: July, 1973


 View
 Download
 Alerts
 Permissions

doi:10.2136/sssaj1973.03615995003700040046x

Weathering of Biotite in Soils of a Humid Tropical Climate1

  1. A. G. Ojanuga2

Abstract

Abstract

The weathering of biotite in soils formed in saprolites derived from granite and gneiss was studied. The soils occurred in the Southwestern Upland of Nigeria which is characterized by a humid tropical climate.

Vermiculite and montmorillonite are the usual products of biotite weathering in well-drained temperature soils, whereas kaolinite appears to be the dominant product in the well-drained, moderately acidic, tropical soils studied. The formation of kaolinitic pseudomorphs represented a stage in the kaolinization of biotite in the soils. A mechanism for the kaolinization of biotite has been suggested.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America

Facebook   Twitter