Abstract
The four primary modes of microscopic occurrence of uranium in the Katemcy and Streeter granites of central Texas as revealed by fission track “mapping” are: 1) in accessory minerals; 2) along grain boundaries; 3) in microfractures; and 4) in quartz and feldspars. Most of the uranium occuring in the first three modes, accounting for more than three-fourths of the total, appears to be readily mobilized during weathering.
Similar content being viewed by others
References
Brown H, Silver LT (1955) The possibilities of obtaining long-range supplies of uranium, thorium, and other substances from igneous rocks. U.S. Geol Surv Prof Pap 300:91–96
Fleischer RL (1966) Uranium micromaps: Technique for in situ mapping of distributions of fissionable impurities. Rev Sci Instrum 37:1738–1739
Goldich SS (1941) Evolution of the central Texas granites. J Geol 49:697–720
Ledger EB, Tieh TT, Rowe MW (1980) Delayed-neutron activation determination of uranium in thirteen French rock reference samples. Geostandards Newletter 4:5–8
Neuerburg, G.J (1955) Uranium in igneous rocks of the United States. US Geol Surv Prof Pap 300:55–64
Ragland PC, Billings GK, Adams JAS (1967) Chemical fractionation and its relationship to the distribution of Th and U in a zoned granite batholith. Geochim Cosmochim Acta 31:17–33
Rogers JJW, Adams JAS (1969) Uranium and Thorium. In: Handbook of Geochemistry. KH Wedepohl (ed). Springer, Berlin, II/3: sections 90 and 92
Stenzel HB (1932) Precambrian of the Llano Uplift, Texas (Abst.). Geol Soc Am Bull 43:143–144
Stuckless JS, Bunker CM, Bush CA, Doering WP, Scott JH (1977) Geochemical and Petrological Studies of a Uraniferous Granite from the Granite Mountains, Wyoming. J Res US Geol Surv 5:61–81
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Tieh, T.T., Ledger, E.B. Fission track study of uranium in two granites of central texas. Contrib Mineral Petrol 76, 12–16 (1981). https://doi.org/10.1007/BF00373678
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00373678