Thermoluminescence of sand grains around a South Texas roll-type deposit

The termoluminescence of quartz and feldspar grains around a south Texas roll-type deposit was studied to determine whether a systematic variation in such thermoluminescence exists. Measurements of the thermoluminescence were made in the temperature ranges of 100° to 322°C and 315° to 410°C. Neither temperature range yielded data to differentiate between oxidized and reduced rock. The ratio of the lower temperature to the higher temperature thermoluminescence, however, was consistently higher in ore and reduced rock than in oxidized rock. Studies of thermoluminescence may be useful in identifying alteration related to uranium mineralization.