Iron-titanium oxide minerals and associated alteration phases in some uranium-bearing sandstones

Journal of Research of the U.S. Geological Survey
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Abstract

Detrital iron-titanium (Fe-Ti) oxide minerals of the ulvospinel-magnetite (titanomagnetite) and ilmenite-hematite (titanohematite) solid solution series are common in uranium-bearing sandstones. Alteration of Fe-Ti oxide minerals in oxidizing environments formed secondary products (primarily hematite) that are distinct from those produced under reducing conditions (iron disulfide minerals). Oxidation of sulfidized Fe-Ti oxide minerals, by the processes that formed uranium rolls, produced ferric oxide minerals (limonite) having textures that mimic those of the iron disulfides. Titanomagnetite and titanohematite have been severely depleted in the ore-bearing zones of some uranium deposits. The alteration of detrital Fe-Ti oxide minerals near uranium ore deposits may produce characteristic signatures in the magnetization of the sandstone. Knowledge of the distribution and magnetic properties of these minerals can aid in interpreting data from total magnetic-field and magnetic-susceptibility surveys of uranium deposits. 

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Iron-titanium oxide minerals and associated alteration phases in some uranium-bearing sandstones
Series title Journal of Research of the U.S. Geological Survey
Volume 6
Issue 6
Year Published 1978
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Description 8 p.
First page 707
Last page 714
Country United States
State Colorado, New Mexico, Texas, Wyoming
County Live Oak County, Johnson County, Karnes County, Webb County, Weld County
Other Geospatial Grants mineral belt, Powder River Basin
Online Only (Y/N) N
Additional Online Files (Y/N) N
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