12th Conference Proceedings
Table of Contents


1. Petrologic Constraints on the Tectonic Evolution of the Llano Uplift

W.D. Carlson p. 3
2. Geologic Provinces of Oklahoma

R.A. Northcutt and J.A. Campbell p.29
3. The Southern Oklahoma Aulacogen: A Cambrian Analog for Mid-Proterozoic AMCG (Anorthosite-Mangerite-Charnockite-Granite) Complexes?

J.P. Hogan and M.C. Gilbert p.39
4. Surface and Near-Surface Investigation of the Alteration of the Mount Scott Granite and Geometry of the Sandy Creek Gabbro Pluton, Hale Spring Area, Wichita Mountains, Oklahoma

J.D. Price, J.P. Hogan, M.C. Gilbert and J. Payne p.79
5. Multiple Reactivations of Rigid Basement Block Margins: Examples in Northern Reading Prong, U.S.A.

A.E. Gates and R.E. Costa p.123
6. The Variscan Geodynamic Cycle in the Sardinian-Corsican Massif, According to the Most Recent Data

N. Minzoni p.155
7. Geological and Geophysical Exploration for Uranium Mineralization in the El-Eredyia Prospect Area, Central Eastern Desert, Egypt

S.I. Rabie, A.A. Abdel-Meguid and A.S. Assran p.169
8. Seismic Imaging Beneath Thrust Blocks

Z.M. Liu and R.A. Young p.191

9. Petrology and Tectonic Significance of the Polly Wright Cove Pluton, Blue Ridge Province, Virginia: An Extension-Related, Multiple-Intrusive Magmatic System of Anorogenic Origin

W.J. Abbey, R.P. Tollo and J.N. Aleinikoff p.209
10. Basement-Involved and Detached Phases of Deformation in the Evolution of Fold-Thrust Belts: Examples from the Southern Cordilheira do Espinhaço and the Paramirim Deformation Corridor, Brazil

F.F. Alkmim and A. Danderfer Fº p.211
11. Evolution of the Late Proterozoic Basement in the Northern Appalachian Orogenic System and Implications for the Ouachita System

P.J. Barosh p.213
12. The North-Trending Swarm of Mesozoic Dikes in the Southern Appalachians: Its Map Pattern and Significance for Mesozoic Extension

M.J. Bartholomew p. 215
13. Crustal Tectonic Controlling Metallogenies from Paleozoic to Tertiary in the North Patagonian Region, Argentina

H.G.L. Bassi p. 217
14. Early Proterozoic Ductile Reworking of Archean Basement in the Central Laramie Range: A Complex Response to the Cheyenne Belt, Trans-Hudson and Central Plains Orogens

R.L. Bauer, D.A. Gresham and J.D. Edson p. 219
15. Propagation of High Angle, Dip-slip Basement Fault Zones into Overlying Sedimentary Rocks

L.A. Boldt p. 223
16. Geologic Provinces of Oklahoma

J.A. Campbell and R.A. Northcutt p. 225
17. Evidence from the Stratigraphic Record for Basement Deformation in Southeastern Nebraska, Midcontinent U.S.A.

M.P. Carlson p. 227
18. Petrologic Constraints on the Tectonic Evolution of the Llano Uplift

W. Carlson p. 229
19. Proterozoic Evolution of the Llano Uplift, Central Texas: Evidence for High-Pressure Metamorphism from the Oxford Mafic Body

J. Davidow and W. Carlson p. 231
20. Dikes in the Precambrian of the Eastern Arbuckle Mountains

R.E. Denison p. 233
21. Neoproterozoic Continental-Scale Transpression Megazone in Eastern Brazil

I. Endo and R. Machado p. 235
22. Multiple Reactivations of Major Fault Zones in the Northern Reading Prong, U.S.A.

A.E. Gates and R. Costa p. 239
23. Structural Evolution of Cima Termine Area, Val Venosta (Northern Italy)

G.O. Gatto and N. Minzoni p. 241
24. On Fracture Development in Rock Subjected to Compression

L.N. Germanovich, K.K. Lee, J.C. Roegiers and A.V. Dyskin p. 243
25. The Characteristics and Tectonic Evolution of the Basement of the Collision Orogenic Belt on the Southeastern Margin of the Yangtze Plate

X. Guizhong and W. Yifen p. 245
26. Revised Granite-Gabbro Age Relationships, Southern Oklahoma Aulacogen, U.S.A.

W.E. Hames, J.P. Hogan and M.C. Gilbert p. 247
27. Late Precambrian Strike-slip Fault System of the Wichita-Amarillo Mountains as Delineated by Detailed Aeromagnetic Data

B.W. Hawley and S.P. Gay, Jr. p. 251
28. Crustal Growth During Continental Rifting: An Example from the Southern Oklahoma Aulacogen

J.P. Hogan, M.C. Gilbert, J.E. Wright and M. Deggeller p. 253
29. Integrated Petrologic and Sedimentologic Studies of a Late Neoproterozoic Rift Basin Within the Grenvillian Basement of Virginia

F.E. Hutson and R.P. Tollo p. 257
30. Structural Imprint of the Wichita Mountains Frontal Zone on Overlying Sediments

A.C. Lambert and R.A. Young p. 259
31. Plastic Deformation as a Factor of Material Transformation of Rocks (Southern Tien Shan)

M.G. Leonov p. 261
32. Evolution of Proterozoic Granitoids, Eastern Arbuckle Mountains, Oklahoma

E.G. Lidiak p. 265
33. Seismic Imaging Beneath Thrust Blocks

Z. Liu and R.A. Young p. 267
34. Seismicity and Tectonic Relationships of North Central Oklahoma

K.V. Luza p. 269
35. Distribution of Phanerozoic Faulting and Folding, Seismicity, and Ore Deposits in the Midcontinent Region, U.S.A.: A Reflection Widespread Proterozoic Rifting in the North American Craton?

S. Marshak and T.S. Paulsen p. 271
36. The Variscan Geodynamic Cycle in the Sardinian-Corsican Massif

N. Minzoni and M. Minzoni p. 275
37. The Influence of Structural Position and Lithology on the Fracture Distribution in the East Kaibab Monocline Southeastern Utah: Implications for Fluid Flow Properties

P.N. Mollema, A. Aydin and D.D. Pollard p. 277
38. Evolution of Grenville Tectonic Provinces, Southeastern Llano Uplift, Central Texas

S. Mosher, R.C. Roback and J.F. Reese p. 279
39. Anatomy of the Grenville Orogen in West Texas

K.C. Nielsen, K. Soegaard and M.E. Bickford p. 281
40. Halokinetic Associated Crustal Stretching in the Southern Red Sea: New Observations of the Basement and Sedimentary Cover from Refraction Constrained Reflection Seismic Stratigraphy

J.D. Pigott, E.S. Gebretsadik and A. Alahdahl p. 283
41. Partial Melting of Mount Scott Granite at 850°C and 500 Bars

J.D. Price, J.P. Hogan, G.B. Morgan VI, D. London and M.C. Gilbert p. 285
42. Investigation of the Mount Scott Granite Drill Core, Wichita Mountains, Oklahoma

J.D. Price, J.P. Hogan, J. Payne and M.C. Gilbert p. 287
43. Geological and Geophysical Exploration for Uranium Mineralization on Ei-Erediya Prospect Area, Central Eastern Desert, Egypt

S.I. Rabie, A.A.A. Meguid and A.S. Assran p. 289
44. Nature and Age of Ductile Deformation Associated with the "Anorogenic" Town Mountain Granite, Llano Uplift, Central Texas

R.M. Reed, R.C. Roback and M.A. Helper p. 291
45. Interdependency of Mechanical and Chemical Processes during the Evolution of Chloritic Breccia, Sacramento Mountains, Southeastern California

J. Schweitzer p. 293
46. Factors Affecting Limiting Angles for Fault Reactivation in Basement Rocks

T.B. Scott, Jr. p. 295
47. Lead Isotope Mapping of Crustal Reservoirs Within the Grenville Superterrane: Central and Southern Appalachians

A.K. Sinha p. 297
48. Petrology and Geochemistry of a Late Proterozoic Anorgenic Supersuite, Laurentian Appalachians, Virginia and North Carolina: Implications for Magma-Generation Associated with Cratonic Extension

R.P. Tollo and F.F. Hutson p. 299
49. The Role of Recurrent Tectonics in the Formation of the Nemaha Uplift and Cherokee-Forest City Basins and Adjacent Structural Features in Eastern Kansas and Contiguous States, U.S.A.

F.W. Wilson and P. Berendsen p. 301
50. COCORP Southwestern Oklahoma Seismic Lines Revisited

R.A. Young and A.C. Lambert p. 305