956 



SUBJECT INDEX 



Okhotsk, 251 ff, 333 



Oligocene radiolarian assemblages, 880 ff 



Olivine, 674, 697 



Oolites, 822 



Ooliths, 573 ff 



Oland, Island, 292 



Ongea, 368 



Opal, 669 



Ophiuroids, 440, 459 ff 



Organic carbon and nitrogen, 705 ff 



Organic compounds synthesis, 853 ff 



Origin of life. The, 845 



carbon compounds equilibria, 849 ff 

 definition of life, 860 



energy som-ces on primitive earth, 851 ff 

 evolution of early organisms, 860 ff 

 hydrogen escape from earth, 848 ff 

 intermediate chemical evolution, 858 ff 

 nitrogen compounds equilibria, 850 ff 

 other planets, 862 

 primitive atmosphere, 847 ff 



Orinoco River, 641 



Orleansville earthquake, 328, 747 ff 



Orthoclase, 696 



Outer Silver Pit, 284 



Outwash sediments, 892 



Oxidation-reduction potentials and pH, 

 603 ff 



Oxygen is not necessary for life, 862 



Pacific Ocean {see also Eastern, Northeast, 

 South, Western Pacific and, under 

 Crustal rocks, see Eastern North, West- 

 ern North Pacific), 105 ff, 122 ff, 125, 

 177, 185, 229, 238, 264, 276, 336, 368 ff, 

 377 ff, 571, 665, 689, 707, 752, 768, 

 823 ff, 910 



clay-mineral distributions in : see under 

 this heading 



tectonic belt, 251 

 Palagonitization of basaltic glass, 698 

 Paleontology of pelagic sediments : the pre- 

 served record, 866 (see also some refer- 

 ences directly under Pelagic sediments) 



definitions of "pelagic" and "planktonic", 

 866 



fossils, deep-ocean lis. shallow -water, 866ff 



micropaleontological determination of 

 ages, 878 ff 



objectives, 867 ff 



Pre -quaternary paleoceanography, 882 ff 



Quaternary microfossil assemblages, 

 875 ff 



Paleontology of pelagic sediments — continued 



reworking of older microfossils into 

 yoiinger sediments, 881 ff 



shelled micro-organisms, 868 ff 

 Paleotemperature analysis of Cenozoic 



deep-sea cores, 908 

 Paleotemperature measurements using 



Foraminifera, 7 1 1 ff, 908 

 Palisades, 112, 124 

 Palau, 366 



Palos Verdes Hills, 903 

 Panama, 331 

 Paria, Gulf of, 641 

 Patton Escarpment, 257 

 Paxunotu, 367 

 Peat lenses, 637 



Pelagic sediments, 655 {see also under 

 Paleontology of pelagic sediments) 



biotic, 662 



carbonates. 686 ff 



Cenozoic, 714, 718 



clays, 672, 716, 721 



concentration of particulate matter, 655 



Cretaceous, 688, 718 



definition of concept, 655, 866 



elements and oxides, 663 ff 



elements distribution in soluble and in- 

 soluble minerals, 668 ff 



Eocene, 714 



eolian deposits and dust, 691 ff, 695 



equatorial mechanism, 709 



manganese source, 672 



monosilicate concentration, 693 



montmorillonite species, 703 



organic matter, 704 ff 



paleotemperature stratification, 717 



phosphates, 681 ff, 857 ff 



physical stratification, 714 ff 



planktonic Foraminifera species distribu- 

 tion, 679 



Pleistocene, 695, 709, 712, 715 ff 



Pliocene, 709 ff, 712, 718 



productivity control, 708 ff 



productivity stratification, 717 



pteropods and heteropods, relative abun- 

 dance, 679 



Quaternary, 667, 715, 719, 871, 875 ff, 878 



red clay, 662, 768 



redox state, 661 



reworking by organisms, 659 



scouring, 721 



silicates, 692 ff 



solubility and substitution relations, 681 



Tertiary, 277, 688, 695, 719 ff, 878, 880 



