Analyses of samples from lenticular beds of siliceous black shales forming part of the Precambrian sequence unconformably overlying granitic rocks in the vicinity of the Nagarjunasagar dam show a low uranium and organic carbon content, ferric iron in excess of ferrous iron, and other features indicating that the depositional environment of the sediments was not characterized by the presence of sufficient organic matter or the sustained reducing conditions favorable to uranium concentration.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page PDF preview
You do not currently have access to this article.