Basement Tectonics 10: Proceedings of the Tenth International Conference on Basement Tectonics, held in Duluth, Minnesota, U.S.A., August 1992

Front Matter....Pages i-xxiv
Front Matter....Pages 1-1
The Midcontinent Rift System: An Overview....Pages 3-5
Summary of Glimpce Geophysical Investigations of the Midcontinent Rift System in the Lake Superior Region....Pages 7-10
Integrated Potential-Field and Seismic Reflection Studies of the Midcontinent Rift in Eastern Lake Superior....Pages 11-14
The Port Coldwell Veins, Northern Ontario: Pb-Zn-Ag Deposits in a Rift Setting....Pages 15-18
Relationship between Native Copper Deposits and Tectonic Development of the North American Midcontinent Rift System....Pages 19-23
Petrography and Sedimentation of the Middle Proterozoic (Keweenawan) Nonesuch Formation, Western Lake Superior Region: Midcontinent Rift System....Pages 25-28
Structural Geometry of the Superior Zone, Midcontinent Rift System....Pages 29-34
The Finland Tectono-Magmatic Discontinuity— A Growth Fault Marking the Western Margin of the Portage Lake Volcanic Basin of the Midcontinent Rift System....Pages 35-40
The Response to Rifting by the North Shore Volcanics in Minnesota....Pages 41-45
A Review of Sulfide, Platinum Group Element and Oxide Mineralization along the Western Contact of the Duluth Complex: As Related to Structural Development....Pages 47-54
Keweenawan Supergroup Clastic Rocks of the Midcontinent Rift System in Iowa....Pages 55-59
Tectonic Implications and Influence of the Midcontinent Rift System in Nebraska and Adjoining Areas....Pages 61-64
Volcanic Rocks of the Midcontinent Rift System: A Review....Pages 65-67
Sedimentary Fill of the 1100 Ma (Keweenawan) Midcontinent Rift System in the Lake Superior Region....Pages 69-72
Paleozoic Rifting in New England, New Brunswick and Nova Scotia, U.S.A. and Canada....Pages 73-101
In Search of the East Continent Rift Complex: Evidence and Conclusions....Pages 103-105
The Characteristics of Granite in a Cambrian Rift....Pages 107-111
The Possible Effect of a Very Old Archean Nucleus on Mesozoic Rifting of Gondwana....Pages 113-118
Structure of the Pripyat-Dnieper-Donets Rift System and Affiliated Economic Geology....Pages 119-131
Tectonic Setting of Late Jurassic-Early Cretaceous Intraplate Magmatism on Mount Hermon, Northern Israel....Pages 133-138
Front Matter....Pages 1-1
The Tanganyika, Malawi, Rukwa, and Turkana Rift Zones of East Africa: An Inter-Comparison of Rift Architectures, Structural Styles, and Stratigraphies....Pages 139-146
Front Matter....Pages 147-147
Preliminary Investigations of Basement Tectonic Fabric of the Conterminous USA....Pages 149-158
The Basement Fault Block Pattern: Its Importance in Petroleum Exploration, and Its Delineation with Residual Aeromagnetic Techniques....Pages 159-207
Geophysical Studies of Reactivated Precambrian Structures in Minnesota....Pages 209-214
Precambrian Structures of Western Ohio....Pages 215-220
Geology of the Precambrian Basement Beneath the Paleozoic of Southwestern Ontario....Pages 221-264
Basement Control of Recurrent Faulting, Central Montana....Pages 265-282
The Association of Hydrocarbon with Basement Rock of Pre-Phanerozoic Age....Pages 283-295
The Occurrences of Descendant and Indigenous Hydrocarbon in Precambrian Rocks of China....Pages 297-322
El Morro: A Tertiary Volcanic Event Controlled by Pre-Paleozoic Crustal Fracturing, San Luis, Argentina....Pages 323-331
The Geodynamic Evolution of the Sardinian-Corsican and Calabrian-Peloritan Hercynian Massifs....Pages 333-343
Seismic Tomography Study of Basement Tectonics of the Dabie, Ailaoshan, and Longmenshan Orogens, China....Pages 345-352
Front Matter....Pages 353-353
Development of Fabric and Structures in Shear Zones....Pages 355-357
Kinematics of Shear Zones in the Southern Superior Province....Pages 359-366
Transpression-Induced Ductile Shear in the Boundary Region of the Quetico and Wawa Subprovinces, NE Minnesota — A Response to Local Strain Partitioning....Pages 367-377
Continuous Proterozoic Strike-Slip Fault-En Echelon Fracture Arrays in Archean Rocks: Implications for Fault Propagation Mechanics and Dike Injection....Pages 379-407
New Data on Vergence of the Late Archean Great Lakes Tectonic Zone....Pages 409-412
Tectonics of the Altun Tagh Fault....Pages 413-415
Front Matter....Pages 417-417
Post-Extension Shortening Strains Preserved in Calcites of the Midcontinent Rift....Pages 419-419
The New Madrid Rift System — Its Role in the Evolution of the Illinois Basin....Pages 420-420
Front Matter....Pages 417-417
Structure, Stages of Rifting, and Kinematics, Baikal Rift, Russia....Pages 421-422
Recent Submersible Studies of Lake Baikal....Pages 423-424
Evolution and Tectonic Environment of the Late Precambrian Aulacogen System of the North China Craton....Pages 425-425
Relationships between Microearthquakes and Faults of the Ancient Yishu Rift Valley....Pages 426-426
Southern Gulf of Suez: Rift Tectonics....Pages 427-427
A Retrospective Look at Basement Control on Younger Structures....Pages 428-429
Remobilization of Archean Basement Sulphides into Proterozoic, Silver Vein-Bearing Structures, Cobalt, Ontario....Pages 430-431
Basement Control on Laramide Deformation in the Powder River and Williston Basins and Adjacent Areas of the Northern Midcontinent—Tectonic Hierarchy in Continental Lithosphere....Pages 432-433
Basement Structural Trends in Egypt as Obtained from Geopotential Data....Pages 434-434
Kinematics of the Sinai Microplate....Pages 435-435
The Structural Setting and Deformational Features of the Hemlo Au-Mo Deposit, Ontario....Pages 436-437
The Virginia Horn: A Reactivated Archean Fault/Shear Complex....Pages 438-438
Early Proterozoic Leptite and Halleflinta (Tuff and Tuffite) Sequences of Southern Finland Reinterpreted as Shear Zones: Significance to Lake Superior Geology....Pages 439-440
The Bamble Shear Belt, Southern Norway....Pages 441-441
Back Matter....Pages 443-443