Mountain Building in the Uralides: Pangea to the Present

Mountain Building in the Uralides Pangea to the Present......Page 3
Copyright......Page 4
CONTENTS......Page 5
PREFACE......Page 7
INTRODUCTION......Page 8
REFERENCES......Page 13
1. INTRODUCTION......Page 15
2.1. Early Paleozoic Rift Stage......Page 18
2.2. The Passive Margin Stage: The Continental Shelf......Page 20
2.3.1. Sakmara Allochthon Synform.......Page 23
2.3.2. Suvanyak Complex......Page 25
2.3.4. Nizhnie Sergi.......Page 27
2.3.7. The Lemva Allochthon......Page 29
2.3.9. Kara Tectonic Zone of  Pay-Khoy.......Page 31
3. DISCUSSION......Page 32
REFERENCES......Page 33
The Crustal Architecture of the Southern and Middle Urals From the URSEIS, ESRU, and Alapaev Reflection Seismic Surveys......Page 38
1. INTRODUCTION......Page 39
2.3. The Magnitogorsk and Tagil Volcanic Arcs......Page 41
3.1. The Foreland Thrust and Fold Belt......Page 42
3.4. East Magnitogorsk-Serov-Mauk Fault System......Page 44
3.5. East Uralian Zone......Page 46
3.6. Trans-Uralian Zone......Page 47
4. DISCUSSION......Page 49
REFERENCES......Page 51
1. INTRODUCTION......Page 54
2.2. The Altaids......Page 55
3.2. Plutons in the East Uralian Zone......Page 57
4.3. Magnetic Variation Data......Page 58
5.1. Axis A......Page 61
5.5. Axis E......Page 62
6.1. Magnetic and Gravity Model for the URSEIS Profile......Page 63
6.2. Magnetic Model for the ESRU Profile......Page 64
7. DISCUSSION......Page 66
REFERENCES......Page 68
1. INTRODUCTION......Page 71
2. GEOLOGIC FRAMEWORK......Page 73
3. CRUSTAL-SCALE RESTORATION......Page 75
5. THE CASE FOR PHASE-CHANGE MOHO......Page 77
6. GEODYNAMIC EVOLUTION OF THE SOUTHERN URALIDES IN RELATION TO OTHER OROGENS......Page 80
7. CONCLUSIONS......Page 82
REFERENCES......Page 83
1. INTRODUCTION......Page 87
2.1. Southern Uralides......Page 89
2.2. The Central Variscides......Page 92
3. CRUSTAL ARCHITECTURE FROMSEISMIC PROFILES......Page 93
4.1. Initiation of Convergence......Page 95
4.2. Arc-Continent Collision......Page 96
4.3. Foreland Thrust and Fold Belt Evolution......Page 98
5. DISCUSSION......Page 99
6. CONCLUSIONS......Page 100
REFERENCES......Page 101
Arc-Continent Collision in the Southern Urals: Petrogenetic Aspects of the Forearc-Arc Complex......Page 104
1. INTRODUCTION......Page 105
3.1. Khvorostyanka Region......Page 106
3.2. Sibai Region......Page 108
4. IGNEOUS ROCKS FROM THE MAIN URALIAN FAULT......Page 109
5. ANALYTICAL TECHNIQUES......Page 111
6.2. Sr and Nd Isotopes......Page 112
6.3.1. Extrusive Rocks from the Baimak-Buribai and Tanalyk Formations.......Page 119
6.3.3. Extrusive Rocks from the Karamalytash Formation.......Page 124
6.3.4. Mid-0rdovician MORB Lavas from the MainUralian Fault.......Page 126
6.3.6. Depleted IAT Hypabyssal Rock Ankaramitefrom the Main Uralian Fault.......Page 127
6.4. Intergroup Comparison and Geochemical Characterization of the Magmatic Sources......Page 128
6.5. Intergroup Comparison by Combined Immobile Trace Element and Isotopic Characteristics......Page 129
7.1.1. Magnitogorsk Arc.......Page 131
7.2. Implication for Main Uralian Fault Ophiolites Settin......Page 132
8. CONCLUSIONS......Page 133
REFERENCES......Page 134
1. INTRODUCTION......Page 138
2.1. Southern Urals......Page 139
2.3. Polar Urals......Page 143
3. COMPARATIVE CHARACTERISTICS OF OPHIOLITE AND ZONED MASSIFS......Page 145
4. ASSOCIATED METAMORPHIC ROCKS......Page 150
5. DISCUSSION......Page 152
REFERENCES......Page 153
Massive Sulfide Deposits in the South Urals: Geological Setting Within the Framework of the Uralide Orogen......Page 157
1. INTRODUCTION......Page 158
2. GENERAL FEATURES OF VMS DEPOSITS IN THE SOUTH URALS......Page 159
3.1. Metallogenic Zones......Page 162
3.1.3. Magnitogorsk Zone.......Page 163
4.2.2. Irendyk Formation.......Page 165
4.4. Summary......Page 166
5.1. Published Data......Page 176
5.2. Preliminary Analysis of  New Data......Page 177
6. DISCUSSION......Page 178
7. CONCLUSIONS......Page 180
REFERENCES......Page 181
1. INTRODUCTION......Page 185
2. GEOLOGICAL SETTING......Page 186
4. ANALYTICAL METHODS......Page 189
5. PETROGRAPHICAL CHARACTERISTICS AND LIGHT MINERAL SPECTRUM......Page 191
5.1.1. Quartz.......Page 194
5.1.4. Carbonate.......Page 195
5.3. Light Mineral Variation......Page 196
6.2. Metamorphic Source......Page 197
6.4. Stable Heavy Minerals......Page 198
7.1. Spinel......Page 199
7.2. White Mica......Page 200
7.3. Garnet......Page 202
7.4. Amphibole......Page 203
7.5. Tourmaline......Page 205
8. DISCUSSION......Page 206
9. CONCLUSIONS......Page 208
REFERENCES......Page 209
Granitoids of the Uralides: Implications for the Evolutionof the Orogen......Page 212
2. GEOLOGICAL BACKGROUND......Page 213
3.1. Late Silurian to Early Devonian Ophiolite-Related Granitoids......Page 214
3.2.1. Granitoids of the Platinum-Bearing Belt: Kytlym.......Page 215
3.2.2. 370 to 350 Ma Subduction Related Batholiths.......Page 220
3.2.3. 335 Ma to 315 Ma Subduction-Related Batholiths.......Page 222
3.2.5. Permian Collision-Related Batholiths......Page 225
4. DISCUSSION......Page 229
5. CONCLUSIONS......Page 231
REFERENCES......Page 232
Four Decades of Geochronological Work in the Southern and Middle Urals: A Review......Page 234
2. GEOLOGICAL BACKGROUND......Page 235
3. INTERPRETATION OF THEGEOCHRONOLOGICAL DATA......Page 238
4.1.1. East European Craton.......Page 240
4.2.2. Ophiolites, Ultramafic, and Mafic Massifs.......Page 243
4.2.3. Metamorphic Complexes.......Page 250
4.3. Mesozoic......Page 251
REFERENCES......Page 252
1. INTRODUCTION......Page 257
2. TECTONIC FRAMEWORK OF THE URALIDES......Page 258
5. RESULTS......Page 259
6.1. Foreland Thrust and Fold Belt......Page 261
6.2. Magnitogorsk Zone......Page 265
6.4. East Uralian Zone......Page 266
7.DISCUSSION......Page 267
REFERENCES......Page 270
1. INTRODUCTION......Page 273
2. NEOTECTONIC MOVEMENTS IN THE SOUTHERN URALS......Page 274
3. STRENGTH OF THE LITHOSPHERE ALONG THE URSEIS PROFILE......Page 277
4. NUMERICAL MODELING......Page 280
4.1. Background......Page 281
4.2. Results of Numerical Modeling......Page 282
REFERENCES......Page 284