Vein type uranium deposits : report of the Working Group on Uranium Geology

COVER......Page 1
FOREWORD......Page 4
EDITORIAL NOTE......Page 5
CONTENTS......Page 6
INTRODUCTION......Page 8
REFERENCES......Page 9
THE PROBLEM OF URANIUM MINERALIZATION IN PRECAMBRIAN METAMORPHIC SHEAR TECTONITES - WITH PARTICULAR REFERENCE TO THE SINGHBHUM COPPER-URANIUM BELT, EASTERN INDIA......Page 10
2. REGIONAL GEOLOGICAL SETTTING......Page 11
4. ORE DEPOSITS AND THEIR HOST ROCKS......Page 14
5. MINERALOGY OF THE URANIUM ORE......Page 16
6. AGE OF MINERALIZATION......Page 17
7. ORE GENESIS......Page 18
REFERENCES......Page 20
1. INTRODUCTION......Page 22
2. GEOLOGICAL SETTING......Page 23
3. GEOCHEMISTRY AND MINERALOGY OF THE URANIUM OCCURRENCES......Page 25
4. Pb-U DATING OF THE URANIUM OCCURRENCES......Page 32
5. RELATIONSHIP BETWEEN URANIUM MINERALIZATION AND URANIUM-ENRICHED GRANITES......Page 37
REFERENCES......Page 42
1. INTRODUCTION......Page 44
2. GEOLOGY OF SOUTH GREENLAND......Page 45
3. TECTONIC SETTING OF THE GRANITE ZONE DURING THE GARDAR PERIOD......Page 46
4. RADIOACTIVE MINERAL OCCURRENCES......Page 48
5. ALTERATION OF THE WALLROCK......Page 51
6. DISCUSSION OF THE GENESIS OF THE URANIUM VEIN OCCURRENCES......Page 52
REFERENCES......Page 54
GEOLOGICAL ENVIRONMENT OF THE VEIN-TYPE DEPOSITS IN THE APHEBIAN BASEMENT OF THE CARSWELL STRUCTURE ON THE ATHABASCA PLATEAU (NORTHERN SASKATCHEWAN) COMPARISON WITH OTHER DEPOSITS OF THE SAME TYPE......Page 57
1. GEOLOGICAL UNITS......Page 58
2. BASEMENT DEPOSITS......Page 62
3. MINERALIZATION FACTORS......Page 68
4. CONCLUSIONS......Page 72
REFERENCES......Page 73
1. INTRODUCTION......Page 77
2. REGIONAL GEOLOGY......Page 78
3. MINE GEOLOGY......Page 81
4. ORIGIN......Page 82
REFERENCES......Page 83
1. INTRODUCTION......Page 85
2. REGIONAL GEOLOGY......Page 87
3. WESTMORELAND (RED TREE) URANIUM OCCURRENCES......Page 91
REFERENCES......Page 99
2. REGIONAL GEOLOGICAL SETTING......Page 101
3. URANIUM DEPOSITS......Page 103
4. GENESIS......Page 109
ACKNOWLEDGEMENTS......Page 111
REFERENCES......Page 112
1. INTRODUCTION......Page 113
2. GEOLOGY OF THE KITONGO GRANITE AND ITS COUNTRY ROCK......Page 116
3. URANIUM MINERALIZATION OF THE KITONGO GRANITE......Page 119
4. PETROGRAPHY OF THE ROCK UNITS......Page 120
5. GEOCHEMISTRY OF THE ROCKS......Page 123
6. GENESIS OF THE KITONGO GRANITE......Page 137
7. GENESIS OF THE ALBITE-URANINITE MINERALIZATION......Page 138
REFERENCES......Page 140
1. INTRODUCTION......Page 143
2. GEOLOGIC SETTING OF EL-EREDIYA AND EL-MISSIKAT AREAS......Page 145
3. EL-EREDIYA URANIUM OCCURRENCE......Page 147
4. EL-MISSIKAT URANIUM OCCURRENCE......Page 153
6. CONCLUSIONS......Page 155
REFERENCES......Page 156
1. INTRODUCTION......Page 158
3. GEOLOGY OF THE DEPOSIT......Page 159
4. HYDROTHERMAL ALTERATION......Page 161
5. VEIN MINERALIZATION......Page 162
6. GEOCHEMISTRY OF ALTERATION AND VEIN MINERALIZATION......Page 163
7. STABLE ISOTOPES......Page 164
8. SOURCE OF VEIN COMPONENTS......Page 165
ACKNOWLEDGEMENTS......Page 166
REFERENCES......Page 167
GEOLOGY AND GENESIS OF URANIUM DEPOSITS AT THE PITCH MINE, SAGUACHE COUNTY, COLORADO......Page 168
1. INTRODUCTION......Page 169
2. GEOLOGIC SETTING......Page 170
3. URANIUM DEPOSITS......Page 172
5. PETROLOGY OF ORES AND ALTERATION......Page 173
7. WHY IS THE LEADVILLE DOLOMITE IMPORTANT?......Page 175
8. SUMMARY: GENETIC MODEL......Page 177
REFERENCES......Page 178
1. INTRODUCTION......Page 180
2. HYDROTHERMAL VEINS IN OPEN STRUCTURES......Page 182
4. EPISYENITES......Page 184
6. \'IBERIAN-TYPE\' DISSEMINATED DEPOSITS......Page 185
7. DISCUSSION......Page 188
REFERENCES......Page 189
SOBRE EL ORIGEN DE LOS YACIMIENTOS FILONIANOS DE URAN10 EN ROCAS METASEDIMENTARIAS; EL CASO DE MINA FE, SALAMANCA (ESPANA)......Page 191
1. INTRODUCTION......Page 192
2. GEOLOGIA Y MINERALOGIA DEL YACIMIENTO......Page 193
3. LOS PROCESOS GENETICOS......Page 203
4. EL ORIGEN POR BOMBEO SISMICO......Page 204
5. LOS FLUIDOS DE LOS CAMPOS GEOTERMICOS ACTUALES......Page 206
7. EL CALOR DE DEFORMACION EN LAS ZONAS DE CIZALLA......Page 207
8. YACIMIENTOS DE URANIO CON CARBONATOS, ADULARIA Y SULFUROS DE HIERRO......Page 208
9. CONCLUSIONES......Page 209
REFERENCIAS......Page 211
1. INTRODUCTION - URANIUM METALLOGENESIS IN THE EUROPEAN PART OF THE HERCYNIAN OROGEN......Page 213
2. MORPHOLOGY OF THE URANIUM OCCURRENCES......Page 215
3. MAIN FRENCH URANIFEROUS DISTRICTS RELATED TO GRANITES......Page 219
4. CONCLUSIONS......Page 233
REFERENCES......Page 237
2. HISTORY AND DEVELOPMENT......Page 245
3. BARHALDE GRANITE COMPLEX......Page 249
4. STRUCTURES AND ORE CONTROL......Page 251
5. MINERALOGY......Page 254
ACKNOWLEDGEMENTS......Page 257
REFERENCES......Page 258
THE GROßSCHLOPPEN-HEBANZ URANIUM OCCURRENCES - A PROTOTYPE OF MINERALIZED STRUCTURE ZONES CHARACTERIZED BY DESILICIFICATION AND SILICIFICATION......Page 259
2. REGIONAL GEOLOGICAL SETTING......Page 260
4. WALL ROCK ALTERATION......Page 263
5. THE GROßSCHLOPPEN HEBANZ U MINERALIZATION......Page 267
6. AGE OF MINERALIZATION......Page 268
REFERENCES......Page 270
FAULT-CONTROLLED URANIUM BLACK ORE MINERALIZATION FROM THE WESTERN EDGE OF THE BOHEMIAN MASSIF (NE BAVARIA, FR GERMANY)......Page 273
2. REGIONAL GEOLOGICAL SETTING......Page 274
3. THE FAULT-CONTROLLED U ORE MINERALIZATION......Page 275
4. SUMMARY AND CONCLUSIONS......Page 286
REFERENCES......Page 287
1. INTRODUCTION......Page 290
2. GEOLOGY OF KRUSNE HORY......Page 291
3. MORPHOLOGY AND MINERALOGY OF THE MINERALIZATION......Page 295
5. URANIUM MINERALIZATION......Page 298
6. ORE CONTROL......Page 299
REFERENCES......Page 302
2. GEOLOGY......Page 303
3. SHAPE AND MINERALOGICAL COMPOSITION OF THE VEINS......Page 307
4. MINERAL COMPOSITION OF THE VEINS......Page 308
6. ORE CONTROLS......Page 310
REFERENCES......Page 312
1. INTRODUCTION......Page 314
2. REGIONAL GEOLOGICAL SETTING......Page 315
3. GEOLOGICAL SETTING OF THE TWO PRINCIPAL URANIUM VEIN-TYPE ZONES......Page 316
4. PRE-VARISCAN EVOLUTION OF THE HOST LITHOLOGIES......Page 319
5. STRUCTURAL SPECIFICS OF THE U PRODUCING VARISCAN OVERPRINT......Page 323
6. DISCUSSION......Page 324
7. CONCLUSION......Page 325
REFERENCES......Page 326
THE TWO URANIUM DEPOSITS IN THE POLISH PART OF THE SUDETY MOUNTAINS......Page 329
1. INTRODUCTION......Page 330
2. KLETNO DEPOSIT......Page 331
3. THE KOWARY DEPOSIT......Page 341
4. CONCLUSIONS......Page 349
REFERENCES......Page 350
2. REGIONAL STRUCTURAL SETTING......Page 352
3. GEOLOGICAL FEATURES OF THE URANIUM DISTRICT......Page 354
4. HOST ROCK AND NEAR VEIN ALTERATION......Page 360
5. CHARACTERISTICS OF THE ORE AND THE ORE FORMING PROCESS......Page 363
6. DISCUSSION OF GENESIS OF THE URANIUM DEPOSITS......Page 366
ACKNOWLEDGEMENTS......Page 369
1. INTRODUCTION......Page 370
2. GRANITE-TYPE URANIUM DEPOSITS......Page 371
DISCUSSION OF GENESIS OF GRANITE-TYPE URANIUM DEPOSITS (GUD)......Page 380
REFERENCES......Page 386
URANIUM MINERALIZATION OF COLLAPSE BRECCIA PIPES IN NORTHERN ARIZONA, WESTERN UNITED STATES......Page 387
1. INTRODUCTION......Page 388
2. MINING HISTORY......Page 391
3. FIELD RECOGNITION OF BRECCIA PIPES......Page 393
4. MINERALIZATION OF THE BRECCIA PIPES......Page 394
5. GEOCHEMISTRY......Page 397
6. GENESIS OF THE BRECCIA PIPES AND MINERALIZING FLUIDS......Page 403
ACKNOWLEDGEMENTS......Page 404
REFERENCES......Page 405
1. INTRODUCTION......Page 407
2. STRUCTURAL FEATURES......Page 409
3. METALLOGENESIS......Page 410
4. CONCLUSIONS......Page 414
REFERENCES......Page 415