thumbnail

Uranium content and leachability of some igneous rocks and their geochemical significance

Trace Elements Investigations 626

This report concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission
By:
, ,

Links

Abstract

The uranium content and its leachability in 442 igneous rocks if wide variety were measured. Four-gram samples, crushed below 38 mesh, were leached in in 0.05 M HNO3 for half an hour at 80 to 85° C; the leachate and undissolved residue were analyzed fluorimetrically.


This study explored the relation of uranium content and leachability to petrography. With few exceptions, the relations between uranium content, uranium leachability, rock leachability, rock type, and mineral composition seem to be random. Uranium content and leachability in homogeneous outcrops vary erratically, in heterogeneous outcrops the variation appears nonsystematic. Correlations with geologic environment indicate that uranium content and leachability are largely controlled by geologic processes during and after crystallization.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Uranium content and leachability of some igneous rocks and their geochemical significance
Series title:
Trace Elements Investigations
Series number:
626
Year Published:
1956
Language:
English
Publisher:
U.S. Geological Survey
Description:
23 p.
Number of Pages:
24