Abstract
Samples were collected from a weathering profile developed above pyroxenites belonging to the alkaline massif of Jacupiranga. The primary minerals titanoaugite, magnetite, perovskite, phlogopite, and olivine - were first partially transformed by a hydrothermal alteration process and the completely altered by weathering. The earlier products of the supergene alteration of the pyroxenites -are smectites; these minerals change into kaolinite and goethite which are the principal components of the lateritic cover. This paper deals with micromorphological aspects of these transformations.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
