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Extending for more than 2000 kilometers from the islands of Novaya Zemlya in the north to the Aral Sea in the south, the Uralide orogen forms the geographical and geological divide between Europe and Asia. For more than a century the Uralides have been one of the key areas of geological research in Russia, and have provided much of its mineral and petroleum wealth for the last 50 years. Nevertheless, the geology and tectonic evolution of the Uralide orogen were relatively unknown in the international literature until recently, when EUROPROBE and GEODE (European Science Foundation scientific programmes) brought together Russian, European, and American earth scientists to work in the Uralides project and the Urals Mineral Province project, respectively. Much of the recent research has focused around two deep seismic surveys, Europrobe's Seismic Reflection Profiling in the Urals (ESRU) survey in the Middle Urals and the multicomponent Urals Seismic Experiment and Integrated Studies (URSEIS) survey in the South Urals. These experiments were accompanied by a large number of geological, geochemical, geochronological, and geophysical studies.
Preface
Dennis Brown, Christopher Juhlin, and Victor Puchkov vii
Introduction
Dennis Brown, Christopher Juhlin, and Victor Puchkov 1
Section 1 . Crustal Structure and Orogen Evolution
Paleozoic Evolution of the East European Continental Margin Involved in the Uralide Orogeny
V. Puchkov 9
The Crustal Architecture of the Southern and Middle Urals From the URSEIS, ESRU, and Alapaev Reflection Seismic Surveys
D. Brown, C. Juhlin, A. Tryggvason, D. Steer, P. Ayarza, A/I. Beckholmen, A. Rybalka, and M. Bliznetsov 33
Insights Into the Architecture and Evolution of the Southern and Middle Urals From Gravity and Magnetic Data
G. S. Kimbell, C. Ayala, A. Gerdes, M. K. Kaban, V. A. Shapiro, and Y. P. Menshikov 49
Role of a Phase: Change Moho in Stabilization and Preservation of the Southern Uralide Orogen, Russia
Camelia C. Diaconescu and James H. Knapp 67
Tectonic Processes During Collisional Orogenesis From Comparison of the Southern Uralides With the Central Variscides
J. Alvarez-Marron 83
Section 2. Arc-Continent Collision in the Uralides
Arc-Continent Collision in the Southern Urals: Petrogenetic Aspects of the Forearc-Arc Complex
P. Spadea, M. D'Antonio, A. Kosarev, Y. Gorozhanina, and D. Brown 101
Ophiolites and Zoned Mafic-Ultramafic Massifs of the Urals: A Comparative Analysis and Some Tectonic Implications
G. N. Savelieva, A. Ya. Sharaskin, A. A. Saveliev, P. Spadea, A. N. Pertsev, and I. I. Babarina 135
Massive Sulfide Deposits in the South Urals: Geological Setting Within the Framework of the Uralide Orogen
R. J. Herrington, R. N. Armstrong, V. V. Zaykov, V. V. Maslennikov, S. G. Tessalina, J.-J. Orgeval, and R. N. A. Taylor 155
Surface Signals of an Arc-Continent Collision: The Detritus of the Upper Devonian Zilair Formation in the Southern Urals, Russia
A. P. Willner, T. Ermolaeva, Y N. Gorozhanina, V. N. Puchkov, A/I. Arzhavitina, V. N. Pazukhin, U. Kramm, and R. Walter 183
Section 3. Melt Generation, Emplacement and Geochronology
Granitoids of the Uralides: Implications for the Evolution of the Orogen
F. Bea, G. B. Fershtater, and P. Montero 211
Four Decades of Geochronological Work in the Southern and Middle Urals: A Review
J. H. Scarrow, R. Hetzel, V. M. Gorozhanin, M. Dinn, J. Glodny, A. Gerdes, C. Ayala, and P. Montero 233
Section 4. Late- to Post-Orogenic History and the Uplift of the Ural Mountains
The Syn- and Post-Orogenic Low Temperature Events in the Southern and Middle Urals: Evidence From Fission-Track Analysis
D. Seward, D. Brown, R. Hetzel, M. Friberg, A. Gerdes, G. A. Petrov, and A. Perez-Estaun 257
Constraints on the Neogene-Quaternary Geodynamics of the Southern Urals: Comparative Study of Neotectonic Data and Results of Strength and Strain Modeling Along the URSEIS Profile
V. O. Mikhailov, A. V. Tevelev, R. G. Berzin, E. A. Kiseleva, E. I. Smolyaninova, A. K. Suleimanov, and E. P. Timoshkina 273
