Heavy mineral,
hydraulic ratio of, 90
sandstones in, 351-352
Helminthoida, 136
Hemipelagite, 108
Herring-bone cross-bedding, 150-151
High stand tract, 282, Plate 2E
Hilt's Law, 428
Hjulstrom effect, 93, 109
"Hot holes", 12, 494
Hummocky cross-stratification, 150-151
Hydraulic equivalence, 90
Hydraulic ratio, 90
Hydrobia, 458
Hydrogeology, 8, 318-321
Hypichnia, 134
Ichnofacies, 133, 135
Ichnofossils, 133-136
Ichnogenus, 133
Ichnology, 133
Ignimbrite, 108
Illite, 337, 368-369
Imbrication, 77
India, 33, 116
Intraclast, 399, Plate 6D
Intracratonic basins, 478-485
Iron ores, sedimentary, 432-436, Plate 5B
Jahresringe, 453
Juvenile water, 318-319
Kaolin, 33,337
Kaolinite, 33,336-337, 368-369, Plate 4F
Karst, 35, 260, 410, 425-426
Katanga, 13
Kerogen, 317, 333,427
Khuff Formation, Arabia of, 448, 450
Kupferschiefer, 13,261
Kurtosis, 51
Lake Chad,12,
Lakes, 215-220
coals in, 431
economic aspects of, 220-222
ephemeral, 218-220
playa, 218-220
sabkhas in, 218
varves in, 216
Lamina flow, defined, 91
Lamination, 142
Laterite, 28, 33, Plate 5A
Lead-zinc sulfide ores, 13-14, 260-263, 321
Leaky dam, 422, 455
INDEX
517
Leptokurtic, 51
Levee,
coals on, 431
deltaic, 223
fluvial, 198
reservoir properties of, 203
submarine fan, on, 264-266
Libya, 71,196, 478-487
Lignite, 428
Limestone,
classification, 404-407
deposition, 247-264
diagenesis, 406-419
mineralogy, 396-398
Limonite ores, 433
Lithic sandstones, 349
Lithifaction, 309
Lithoclast, 399
Lithostratigraphy, 281
Lithothamnion, 253,256
Load casts, 159
Loess, 24, 113
Loferite, 67
Logging, sections, 131-132
Longitudinal dune, 110-111
Low stand systems tract, 282, Plate 2A
Lumps, 400
Lunate dune, 109
Macerals, 429
Magnesite, 396,
Magnetite, 433
Manganese nodules, 277-279
Massive bedding, 123, 143
Matrix
carbonate, 404
defined, 57
turbidites of, 355
Matterhorn dune, 109,
Maturity
carbonates of, 405-406
sandstones of, 346-349
Maximum flooding surface, 283, Plate 2D
Megaripple,
defined, 95
illustrated, 95, 99
Messinian salinity crisis, 276
Metallogeny, 36-38, 260, 434, 500-505
Meteoric water, 318-319, 372-375,323324, 423-424
Micrinite, 429
Micrite, 401
Microstylolite, 414
Mid-ocean ridges, 277-279,
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