TY - BOOK AU - Tilling,Robert I. AU - Gottfried,David ED - United States. TI - Distribution of thorium, uranium, and potassium in ignous rocks of the boulder batholith region, Montana, and its bearing on radiogenic heat production and heat flow: shorter contributions to general geology U1 - 552.17866 PY - 1969/// CY - Washington, D.C. PB - United States Government Printing Office KW - Rocks KW - Igneous KW - Uranium KW - Ignous rocks N1 - Includes bibliography ER -