INDEX 



143 



Gold-uranium deposits, 70, 71, 98, 



99, 109 

 Glasshouse effect, 122, 124 

 Granite. 64, 65, 67, 70, 78, 97, 98 

 Graphitic slate. 110, 111, 114 

 Gravelle, M. and Lelubre, M., 6, 



70. n, 89, 90, 133 

 Greenland, 12 

 Guadalupian, 40 

 Gunflint iron formation, 83-89 

 Gussow, W. C., 113 



Heat Age. 121, 122 



Heat flow, terrestrial -. 122-124 



Helium method of dating. 88 



Herculaneum. 15 



Himalaya. 13 



Hoggar, 89, 90 



Holmes, A., 6, 33 



Hooykaas, R.. 6, 8, 9 



Hornblende, 95, 97 



Hutton. J., 9 



Ice Age, 12, 121-123 



Ice-cap, 12 



Igneous rocks, 24, 25, 28-30, 17 



Ilmenite, 99 



Index fossil, 23, 28 



India, 72 



Indus valley, 96 



Infra-Cambrian, 91 



Inorganic synthesis of 'organic' 



compounds. 46, 48. 49. 60 

 Invertebrates, 127 

 Iron formations. 70. 83, 85. 109. 



110. 133 

 Iron ore veins, 109, 110 

 Iron, ferric -, 97, 98, 111 

 Iron, ferrous -. 97, 98, 111 

 Isostatic equilibrium, 1 1 

 Isotope, 25, 26, 30-38 



Isotope dilution, 36 



Jotnian, 112 

 Jurassic, 40, 109, 132 



Kerkut. G. A.. 127. 128 

 Klabunovskii. E. I., 117 

 Kluyver, A. J., 1, 76, 82 

 Kola Peninsula, 41 

 Kulp, J. L.. 39-41 



Labrador geosyncline, 113 



Laevo optical activity, 117, 118 



Lake Athabasca. 112 



Lake Superior, 70, 109 



Lateritisation, 110 



Lead age. concordant -, 37 



Lead-lead method of absolute 



dating. 37. 38 

 Lead, nonradiogenic -, 33, 37 

 Lepp, H. and Goldich, S. S., 70, 



89, 109, 110, 114, 133 

 Liebenberg, W. R.. 109 

 Limestone, 78-83, 91, 96 

 Limonite, 112 

 London Basin, 22 

 Lotharingen. 109 

 Luxembourg, 109 

 Lyell, Charles, 9, 10, 14-18 



MacGregor, A. M., 70, 76-83, 



91. 114, 133 

 Madagaskar, 72 

 Magnetite. 95. 100. 102 

 Mammals, 125, 127, 128 

 Marxist doctrine, 5 

 Mass spectrograph, 31, 33, 34 

 Mass spectrometer, 31, 33-37 

 Mesozoic, 24, 39-41, 132, 133 



90, 



