290 
PACIFIC SCIENCE, Voh XIX, July 1965 
Heier, K. S., and J. J. W. Rogers. 1963. Ra- 
diometric determination of thorium, uranium, 
and potassium in basalts and in two mag- 
matic differentiation series. Geochim. Cos- 
mochim. Acta 27:137-154. 
Kuno, H. 1959. Origins of Cenozoic petro- 
graphic provinces of Japan and surrounding 
areas. Bull. Volcanol. 20:37-76. 
Larson, E. S., and D. Gottfried. I960. Ura- 
nium and thorium in selected suites of igne- 
ous rocks. Am. J. Sci. 258 A: 151-169. 
Lovering, J. F., and J. W. Morgan. 1963. 
Uranium and thorium abundances in possible 
upper mantle materials. Nature 197 : 138-140. 
Macdonald, G. A., and T. Katsura. 1962. 
Relationship of petrographic suites in Ha- 
waii. In: Crust of the Pacific Basin. Am. 
Geoph. Union Monogr. No. 6, pp. 187-195. 
. 1964. Chemical composition of 
Hawaiian lavas. J. Petrol. 5:82-133. 
Marshall, R. R. 1958. Significance of varia- 
tions in isotopic composition of lead from 
terrestrial samples. In: NAS-NRC Publ. No. 
572, Nuclear Science Reports No. 23, Cos- 
mological and geological implications of iso- 
tope ratio variations, pp. 57-92. 
McDougall, I. 1964. Potassium-argon ages 
from lavas of the Hawaiian Islands. Geol. 
Soc. Am. Bull. 75:107-128. 
Osborn, E. F. 1962. Reaction series for sub- 
alkaline igneous rocks based on different oxy- 
gen pressure conditions. Am. Mineral. 47: 
211 - 226 . 
Russell, R. D., and R. M. Farquhar. I960. 
Lead isotopes in geology. Interscience, New 
York. 
Tilton, G. R., and G. W. Reed. 1963. Radio- 
active heat production in eclogite and some 
ultramafic rocks. In: Earth Science and Me- 
teoritics. North Holland Publ. Co., Amster- 
dam. 
Wilson, J. T. 1963. A possible origin of the 
Hawaiian Islands. Can. J. Physics 41:863- 
870. 
