958 



SUBJECT INDEX 



Princess Ragnhild Coast, 289 



Proa Expedition, 419 



Profiles (see also Continuous reflection pro- 

 filing) 

 combinations of linear, classified types, 

 31 ff 



Protactinium/ionium dating, 714 



Proteins, 705 



Protons, magnetic interaction, 181 ff 



Protoplast, 677 



Psilomelane, 680 



Pteropods, 447, 659, 677 ff, 688, 873, 880 



Puerto Rico-Africa section, 156 



Puerto Rico Trench, 57, 229, 237, 249 ff, 

 333 ff, 413, 419 ff, 426 ff, 478, 753 ff 



Pulleniatina ohliquiloculata, 837, 911 



Pyroclastic minerals, 662, 672 



Pyroxene, 669, 674, 697 



Qatar Peninsula, 291 



Quartz, 669, 693 



Quaternary pelagic sediments : see under 



Pelagic sediments 

 Quaternary system subdivisions, 891 

 Queen Charlotte Islands earthqviake, 122 

 Queen Maude's Land, 286 

 Queensland, 302 



Radioactivity : see Age determination in 

 sediments 



Radioactivity as source of terrestrial heat, 

 229, 852 



Radioautograph, 661 



Radiolaria(ns), 692, 721, 769 ff, 873 ff, 

 880 ff, 904 



Radio-nuclides, 816 



Radio sono-bvioys, 39 ff, 94 



Radium, 677, 823 ff 



Rayleigh-wave dispersion, 808 



Recent sediments, 875 ff 



Red clay, 622, 768, 904 



Redox state, 661 



Red Sea, 212, 230, 231, 302 ff, 404, 429, 

 583 ff 



Reef deposits, 866 



Refraction and reflection : see Seismic re- 

 fraction and reflection 



Rekyjanes, 400 



Rhabdoliths, rhabdospheres, 868 



Rharb, 300 



Rhine delta, 626 



Rhone river and delta, 328, 335. 494, 500, 

 626, 630 ff, 742 



Rif, 288 



Rift Valley of East Africa, 272 ff, 388, 393, 



395 ff, 407 

 Riisser-Larsen Peninsula, 290 

 Rip currents, 540 ff, 549 ff 

 Ripple marks, 451 ff, 454 

 Ripples, 534 ff. 549, 764 ff 

 Rises protecting from turbidity currents, 



659 

 Riss glacial strata, 893 

 Rockall Bank, 282 

 Rodriguez Island. 394 ff 

 Romanche Trench. 357. 439 ff. 470, 766 

 Rongelap, 377, 380 

 Rongerik, 380 

 Ross Sea, 395, 915 

 Rotuma, 411 

 Rowley depression, 298 

 Rumpftreppe, 306 

 Rutile, 663, 667 ff. 670 

 Ryuku Trench. 414 

 Ryukyu arc of islands, 251 



Saalian strata, 893 



Sagami Bay, 491 



St. Helena, 365 ff, 368 



St. Kilda, 285 



St. Paul Island. 277, 366. 395 



St. Paul's Rocks, 273, 357 



Saint Pierre Bank, 295 



Salicomia, 636 



Salinas Valley, 503 



Salt pans, 622 



Samoan Islands, 267, 366 ff, 370 



San Andreas Fault, 201, 432. 502 



San Clemente Island, 493. 500 



Sand 



deep-sea, 752 ff, 763 



density-porosity relations, 804 



dispersion of grains in uprush zone, 539 



longshore transport, 547 



migration of grains under wave action, 



537 ff 

 model for longshore transport, 545 ff 

 radioactive tracer technique applied to 



movements of, 538 

 ripples on beaches, 534 ff, 549 



San Diego, 240, 333, 485 



Sanidine, 696 



San Lucas Canyon, 485 ff 



San Lucas, Cape, 489 ff 



San Pedro sand, 903 



San Pedro Trough, 770 



Santa Barbara, 595, 602 



Santa Catalina, 601, 610 



II 

 I 



