Structural Geology Professor Emeritus Current Research Interests My research interests center around the study of the time-space relationship of magmatism to metamorphism and deformation, and the correspondence of plate motions to tectonic events preserved within the geologic record. Education Education: B.S., Clemson University, Clemson, South Carolina M.S., Virginia Polytechnic Institute and State University, Blacksburg, Virginia Ph.D., University of California, Santa Barbara, 1980 Research Research Areas: Structural Geology and Tectonics Research Interests: My research interests center around the study of the time-space relationship of magmatism to metamorphism and deformation, and the correspondence of plate motions to tectonic events preserved within the geologic record. Analysis of this broad topic is based upon the description and interpretation of the rock record through time in key areas, with emphasis on using this data base and the work of other researchers to obtain insights into crustal-scale processes and driving mechanisms common to mountain belts. The tools that I have used in addressing these issues include, but are not limited to, basic field mapping, petrography, and structural studies; age determination of plutonic, volcanic and metamorphic rocks by U-Pb, Ar-Ar, and fission track methods; and the use of trace elements, including isotopic signatures of Sr, Nd, and Pb, to gain insights into the tectonic setting of igneous rocks and their source regions. Grants: GRANTS : Noted if CO-PI otherwise PI $34,718, U.S. Geological Survey, "Tectonics and magmatism in southern Arizona and the Mojave Desert", 3/80-2/81. $28,624, U.S. Geological Survey, Continuation of previous grant, 3/81-2/82. $30,000, Lawerence Berkeley Laboratory, "Tectonics and magmatism in the Basin and Range Province", 1/81-9/81. $58,000, National Science Foundation, "Tectonic significance of a serpentinite matrix melange, Klamath Mountains, northern California", 6/81-5/83. $34,000, U.S. Geological Survey, "Tectonics and magmatism in southern Arizona and the Mojave Desert", 8/82-9/83. $116,606, National Science Foundation, "Jurassic magmatism and deformation in the U.S. Cordillera: Constraints from the Klamath Mountains and the Northern Great Basin", 11/83-12/85. $115,000, National Science Foundation, "Detailed geologic mapping, geochronology, and geothermobarometry as a guide to the development of a crustal cross-section for the eastern Great Basin; Collaboration with Art Snoke, University of Wyoming”. Art Snoke, Principal Investigator. 6/87-5/89. $131,466, National Science Foundation, "Cretaceous magmatism and orogenesis in the northern Great Basin". Grant to Elizabeth Miller, and J.E. Wright. 6/88-5/90. $181,700, National Science Foundation, " Request for a multiple-collector thermal ionization mass spectrometer"; matching funds for the purchase of a mass spectrometer. Granted by NSF on Nov. 1, 1989. $101,339, National Science Foundation, "Interrelation of magmatism, metamorphism and deformation, Kigluaik Mountains, Seward Peninsula, Alaska”, 1992-1994. $98,052 , National Science Foundation, “Nature, timing and controls of Jurassic orogenesis in the western U.S. Cordillera” 1/93-12/94. $32,534, National Science Foundation, “Geochronological and geological characteristics of terranes in the central Georgia Piedmont”, 1992-1994. $77,384, National Science Foundation, "Petrologic, isotopic and structural evolution of low pressure metamorphism in an accretionary complex, eastern Chugach Mountains, Alaska", Co-PI with V.B. Sisson, Rice University, 1991-1993. $88,000, National Science Foundation, "Basaltic volcanism associated with Basin and Range extension, central Nevada - geochemical variation in space and time", Co-PI with W.P. Leeman, Rice University, 1991-1993. $105,000, National Science Foundation, "Late Mesozoic history of the western Luning-Fencemaker belt and the Pine Nut fault, west-central Nevada", Co-PI with J.S. Oldow, Rice University, 1992-1994. $133,040, National Science Foundation, “Tectonic consequences of ridge subduction and plate reorganization; the Chugach metamorphic complex, Alaska”, CO-PI with V.B. Sisson, Rice University, 9/93-8/96. $20,000 seed money, National Institute for Global Environmental Change, “High resolution reconstruction of eastern Pacific climate during the past 1000 years: 234U/230Th, Sr/Ca, and 180/160 ratios in Hermatypic corals”, Co-PI with R. Dunbar, and B. Linsley, Rice University. $159,719 , National Science Foundation, “Crustal Evolution of the Bering Shelf-Chukchi Sea Region”, 1/94-12/96. $34,000, National Science Foundation, “Sourcing A-Type granites in ancient rifts”, Collaborative research: 1/94-12/96 $118,584, NIGEC, “Documenting changes in eastern Pacific climate using corals: Base-line data for validation of climate models”, CO-PI with R. B. Dunbar and B. Linsley, Rice University, 6/94-5/95. $164,996, NSF, “Timing of deformation in the early Mesozoic back-arc basin of the western U.S. Cordillera: Luning-Fencemaker fold and thrust belt”; Co-PI with Wyld, 1/96-12/98. $137,934, NSF, "Collaborative Research: Cretaceous age crustal discontinuity in the Black Rock Desert region of northwest Nevada: Kinematic link between the Mojave-Snow Lake Fault and the Salmon River-Idaho Suture/"; 1/99-12/01. *Note remaining funds ($116,700) transferred to UGA. $3,500,000 NSF, “Collaborative Research: Crust-mantle interactions during continental growth and high-pressure rock exhumation at an oblique arc-continent collision zone: the SE Caribbean margin” 4 year grant ongoing. Multi-university grant. $226,757 UGA share $219.520, National Science Foundation, "Tracking the late Mesozoic strike-slip system of the western U.S. Cordillera" 1/02-12-04; CO-PI with S. Wyld. $800,000, National Science foundation, "Renewal proposal; Collaborative Research: Crust-mantle interactions during continental growth and high-pressure rock exhumation at an oblique arc-continent collision zone: the SE Caribbean margin” funded, May 2006; Multi university grant. $99,000 UGA share $180,000 National Science Foundation, "Collaborative Research: The Cretaceous Sierra Nevada Batholith in the northwestern Basin and Range: Intrusive history and erosional exhumation ". funded 2008; $57,349 UGA share $335,498 National Science Foundation, “Jurassic-Early Cretaceous Tectonism, Orogenesis, and Basin Formation in Nevada: An Integrated Test of Models for Growth of the U.S. Cordillera”. Funded 2009; CO-PI with Sandra Wyld (UGA) Selected Publications Selected Publications: PAPERS All Refereed 1. Wright, J.E., Sinha, A.K., and Glover, L., 1975, Age of zircons from the Petersburg Granite, Virginia: with comments on belts of plutons in the Piedmont: American Journal of Science, v. 275, p. 848-856. 2 Church, S.E., Tilton,G.R., Wright, J.E., and Lee-Hu, C.N., 1976, Volatile element depletion and 39K/41K fractionation in lunar soils: Seventh Lunar Science Conference, v. 1, p. 423-439. 3. Cloud, P., Wright, J.E., and Glover, L., 1976, Traces of animal life from 620-million-year old rocks in North Carolina: American Scientist, v. 64, no. 4, p. 396-406. 4. Seiders, Victor M., and Wright, J.E., 1977, Geology and U-Pb Geochronology of the Carolina volcanic slate belt in the Asheboro, North Carolina area: Geological Society of America Field Trip Guidebook (Southeastern Section Meeting). 5. Wright, J.E., and Seiders, V.M., 1980, Age of zircon from volcanic rocks of the central North Carolina Piedmont and tectonic implications for the Carolina volcanic slate belt: Geological Society of America Bulletin, v. 91, p. 287-294. 6. Haxel, G.B., May, D.J., Wright, J.E., and Tosdal, R.M., 1980, Reconnaissance geologic map of the Baboquivari Peak quadrangle, Arizona: U.S. Geological Survey Misc. Field Studies Map MF-1251, Scale 1:62,500. 7. Haxel, G.B., Wright, J.E., May, D.J., and Tosdal, R.M., 1980, Reconnaissance geology of the Mesozoic and Lower Cenozoic rocks of the southern Papago Indian Reservation, Arizona--A progress report: Arizona Geol. Soc. Digest, v. xii, p. 17-29. 8. Tilton, G.R., Hopson, C.A., and Wright, J.E. , 1981, Uranium-lead isotopic ages of the Semail Ophiolite, Oman, with applications to Tethyan ocean ridge tectonics: Journal of Geophysical Research, v. 86, no. B4, p. 2763-2775. 9. Wright, J.E., and Haxel, G.B., 1982, A garnet-two-mica granite, Coyote Mountains southern Arizona: Geologic setting, uranium-lead isotopic systematic of zircons, and the nature of the granite source region: Geological Society of America Bulletin, v. 93, p. 1176-1188. 10. Wright, J.E., 1982, Permo-Triassic accretionary subduction complex, southwestern Klamath Mountains, northwestern California: Journal of Geophysical Research, v. 87, no. B5, p. 3805-3818. 11. Snoke, A.W., Sharp, W.D., Wright, J.E., and Saleeby, J.B., 1982, Significance of mid-Mesozoic peridotitic to dioritic intrusive complexes, Klamath Mountains--western Sierra Nevada, California: Geology, v. 10, p. 160-166. 12. Haxel, G., Tosdal, R.M., May, D.J., and Wright, J.E., 1984, Latest Cretaceous and early Tertiary orogenesis in south-central Arizona: thrust faulting, regional metamorphism , and granitic plutonism. Geological Society of America Bulletin, vol. 95, p.631-653. 13. Harper, G.D., and Wright, J.E., 1984, Middle to Late Jurassic tectonic evolution of the Klamath Mountains, California--Oregon: Tectonics, v. 3, no. 7, p. 759-772. 14. Stewart, J.H., Anderson, T.H., Haxel, G.B., Silver, L.T., and Wright, J.E.,1986, Late Triassic paleogeography of the southern Cordillera: The problem of a source for voluminous volcanic detritus in the Chinle Formation of the Colorado Plateau region: Geology,v. 14, p. 567-570. 15. Dallmeyer, R.D., Wright, J.E., Secor, D.T., and Snoke, A.W., 1986, Character of the Alleghanian Orogeny in the southern Appalachians: Part II. Geochronological constraints on the tectonothermal evolution of the eastern Piedmont in South Carolina: Geological Society America Bulletin, v. 97, p. 1329-1344. 16. Wright, J.E., and Wyld, S.J., 1986, Significance of xenocrystic Precambrian zircon contained within the southern continuation of the Josephine ophiolite: Devils Elbow ophiolite remnant, Klamath Mountains, northern California: Geology, v. 14, p. 671-674 . 17. Miller, M.M., and Wright, J.E., 1987, Geologic constraints on the Permian distribution of Tethyan fauna, from the Klamath Mountains, California: Implications for Permian paleogeography: Geology, v. 15, p. 266-269. 18. Miller, E.L., Gans, P.B., Wright, J.E., and Sutter, J.F., 1988, Metamorphic history of the east-central Basin and Range province: Tectonic setting and relationship to magmatism, in Ernst, W. G., ed., Metamorphism and crustal evolution, western coterminous United States, Rubey Vol. 7: Prentice-Hall, Englewood Cliffs, New Jersey, p. 649-682. 19. Wyld, S.J., and Wright, J.E., 1988, The Devils Elbow ophiolite remnant and overlying Galice Formation: New constraints on the Middle to Late Jurassic evolution of the Klamath Mountains, California: Geological Society America Bulletin, v. 100, p. 29-44. 20. Wright, J.E., and Fahan, M.R.,1988, An expanded view of Jurassic orogenesis in the western U.S. Cordillera: Middle Jurassic (pre-Nevadan) regional metamorphism and thrust faulting within an active arc environment, Klamath Mountains, California: Geological Society of America Bulletin, v. 100, p. 859-876. 21. Lush, A., McGrew, A., Snoke, A.W., and Wright, J. E., 1988, Allochthonous Archaen basement in the northern East Humboldt Range, Nevada: Geology, V. 16, p. 349-353. 22. Dilles, J.H., and Wright, J.E., 1988, The chronology of early Mesozoic arc magmatism in the Yerington District of west-central Nevada, and its regional implications: Geological Society of America Bulletin, v. 100, p. 644-652. 23. Tosdal, R. M., Haxel, G. B., and Wright, J. E., 1989, Jurassic geology of the Sonoran Desert region, southern Arizona, southeast California, and northernmost Sonora, in Jenney, J.P., and Reynolds, S. J., eds., Geologic evolution of Arizona: Tucson, Arizona Geological Society Digest, v. 178, p. 397-434. 24. Miller, C.F., Wooden J.L., Bennett, Victoria, Wright, James E., Solomon, G. Cleve, and Hurst, Richard, 1990, Petrogenesis of the composite peraluminous-metaluminous Old Woman-Piute batholith, Southeastern California: Isotopic Constraints: in Anderson, J. L., ed., The Nature and Origin of Cordilleran Magmatism, Geological Society of America Memoir 174, p. 99-109. 25. Tosdal, R.M., Haxel, G.B., Anderson, T.H., Connors, C.D., May, D.J., and Wright, J.E., 1990, Highlights of Jurassic, Late Cretaceous to Early Tertiary, and Middle Tertiary Tectonics, South-Central Arizona and North-Central Sonora, in Gehrels, George, ed., Fieldtrip guidebook for 1990 Geological Society of American Cordilleran Section Meeting: Arizona Geological Survey Special Paper. 26. Saleeby, Jason B., Busby-Spera, Cathy, Oldow, J.S., Dunne, G.C., Wright, J.E., Cowan, D.S., Walker, N.W., and Allmendinger, R.W., 1991, Early Mesozoic tectonic evolution of the western U.S. Cordillera, in Burchfiel, B.C., Lipman, P.W., and Zoback, M.L., eds., The Cordilleran Orogen; Coterminous United States: Boulder, CO, Geological Society of America, The Geology of North America, v. G3, p. 107-168. 27. Wright, J.E., and Wooden, J.L., 1991, New Sr, Nd, and Pb isotopic data from plutons in the northern Great Basin, U.S.A.: Implications for crustal structure and granite petrogenesis in the hinterland of the Sevier thrust belt: Geology, v. 19, p. 457-460. 28. Romer, R.L., and Wright, J.E.,1992, U-Pb dating of columbite: A geochronologic tool to date magmatism and ore deposits: Geochemica et Cosmochimica Acta, v. 56, p. 2137-2142. 29. Miller, E.L., Miller, M.M., Stevens, C.H., Wright, J.E., and Madrid, R., 1992, Late Paleozoic paleogeographic and tectonic evolution of the western U.S. Cordillera, in Burchfiel, B.C., Lipman, P.W., and Zoback, M.L., eds., The Cordilleran Orogen; Coterminous United States: Boulder, CO, Geological Society of America, The Geology of North America, v. G3, pp. 57-106. 30. Wright, J.E., and Snoke, A.W., 1993, Tertiary magmatism and mylonitization in the Ruby-East Humboldt metamorphic core complex, northeastern Nevada: U-Pb geochronology and Sr, Nd, Pb isotope geochemistry: Geological Society of America Bulletin,v. 105, p. 935-952. 31. Romer, R.L., and Wright, J.E., 1993, Lead mobilization during tectonic reactivation of the western Baltic Shield: Geochimica et Cosmochimica Acta, v. 57, p. 2555-2570. 32. Wyld, S.J., and Wright, J.E., 1993, Mesozoic stratigraphy and structural history of the Pine Nut Range, west-central Nevada: in Dunne, G., and McDougall, K., eds, Mesozoic Paleogeography of the Western United States-II, Pacific Section SEPM, Book 71, p. 289-306. 33. Smith, David L., Wyld, Sandra J., Miller, E.L., and Wright, James E., 1993, Progression and timing of Mesozoic crustal shortening in the northern Great Basin, western U.S.A.: in Dunne, G., and McDougall, K., eds, Mesozoic Paleogeography of the Western United States-II, Pacific Section SEPM, Book 71, p. 389-406 34. Wright, James, E., and Wyld, S.J.,1994, The Rattlesnake Creek Terrane, Klamath Mountains, California: An early Mesozoic arc constructed on a basement of tectonically disrupted oceanic crust: Geological Society of America Bulletin, v.106, p. 1033-1056. 35. Amato, Jeffrey, M., Wright, James. E., Gans, P.B., and Miller, E.L., 1995, Mafic to silicic synkinematic magmatism on Seward Peninsula: Implications for gneiss dome genesis and the Cretaceous history of northern Alaska: Tectonics, v. 13, p. 515-527. 36. Dennis, Allen J., and Wright, James E., 1995, Mississippian (ca 326-326 Ma) U-Pb crystallization ages for two granitoids in Spartanburg and Union Counties, South Carolina: South Carolina Geology, v. 38, p. 23-28. 37. Harris, N.R., Sisson, V.B., Wright, J.E. and Pavlis, T.L. , 1996, Evidence for Eocene mafic underplating during forearc intrusive activity, eastern Chugach mountains, Alaska: Geology, v. 24, p. 263-266. 38. Wyld, S.J., Quinn, M.J., and Wright, J. E., 1996, Anomalous(?) Early Jurassic deformation in the western U.S. Cordillera: Geology, v. 24, p. 1037-1040. 39. Quinn, Michael J., Wright, James E., and Wyld, Sandra J., 1997, The Happy Creek Igneous Complex and tectonic evolution of the early Mesozoic arc in theJackson Mountains, northwest Nevada: Geological Society of America Bulletin, v. 109, p.461-482. 40. Amato, Jeffrey, and Wright, J.E., 1997, Potassic mafic magmatism in the Kigluaik gneiss dome, northern Alaska: A geochemical study of arc magmatism in an extensional tectonic setting: Journal of Geophysical Research, v. 102, No. B4, p. 8065-8084. 41. MacCready, Tyler, Snoke, Arthur W., Wright, James E., and Howard, Keith, 1997, Mid-crustal flow during Tertiary extension in the Ruby Mountains core complex, Nevada: Geological Society of America Bulletin, v. 109, p. 1576-1594. 42. Dennis, Allen J., and Wright, James E. , 1997, The Carolina Terrane in northwestern South Carolina, USA: Late Precambrian-Cambrian deformation and metamorphism in a peri-Gondwanan oceanic arc: Tectonics, v. 16, p. 460-473. 43. Bering Strait Geologic Field Party, 1997, Koolen metamorphic complex, NE Russia: Implications for the tectonic evolution of the Bering Strait region: Tectonics, v.16 p. 713-729. 44. Wyld, S.J., and Wright, J.E., 1997, Triassic-Jurassic tectonism and magmatism in the Mesozoic continental arc of Nevada: Classic relations and new developments: in Link, Paul Karl, and Kowallis, Bart J., eds., Geological Society of America Field Trip Guide Book, Proterozoic to recent stratigraphy, tectonics, and volcanology, Utah, Nevada, southern Idaho and central Mexico, Brigham Young University Geology Studies Vol. 42, Part 1, p. 197-224. 45. Amato, Jeffrey M., and Wright, James E., 1997, Geochronologic investigations of magmatism and metamorphism within the Kigluaik Mountains gneiss dome, Seward Peninsula, Alaska, in short notes on Alaska Geology 1997, Clough, James G., and Larson, Frand, eds., Professional Report 118, Recent research on Alaska geology, p. 1-21. 46. Snoke, Arthur W., Howard, Keith A., McGrew, Allen J., Burton, Bradford R., Barnes, Calvin G., Peters, Mark T., and Wright, J.E., 1997, The grand tour of the Ruby-East Humboldt metamorphic core Comples, northeastern Nevada: Part 1-Introduction and Road Log: in Link, Paul Karl, and Kowallis, Bart J., eds., Geological Society of America Field Trip Guide Book, Proterozoic to recent stratigraphy, tectonics, and volcanology, Utah, Nevada, southern Idaho and central Mexico, Brigham Young University Geology Studies Vol. 42, Part 1, p.225-269. 47. Burton, Bradford R., Barnes, Calvin G., Burling, Trina, and Wright, James E., 1997, The grand tour of the Ruby-East Humboldt metamorphic core Comples, northeastern Nevada: Part 4- Geology and geochemistry of the Harrison Pass pluton, central Ruby Mountains, Nevada: in Link, Paul Karl, and Kowallis, Bart J., eds., Geological Society of America Field Trip Guide Book, Proterozoic to recent stratigraphy, tectonics, and volcanology, Utah, Nevada, southern Idaho and central Mexico, Brigham Young University Geology Studies Vol. 42, Part 1, p.283-296. 48. Barker, Chris A., Secor, Donald T., Pray, John R., and Wright, James E., 1998, Age and deformation of the Longtown Metagranite, South Carolina Piedmont: A possible constraint on the origin of the Carolina terrane: Journal of Geology, v. 106, p.713-725. 49. Apt, J.E., Akinin V.V., and Wright, J.E., 1998. Sr, Nd, and Pb isotopesin Neogene melanephelinites and deep seated xenoliths from the North East of Russia, Geochemistry International, N 1, PP. 28-37. 50. Natal'in, B.A., J. M. Amato, J. Toro, and Wright, J. E., 1999, Paleozoic rocks of the Chegitun River valley, northern Chukotka Peninsula: Insights into the tectonic evolution of the eastern Arctic, Tectonics, 18, 977-1003, 1999. 51. McGrew, Allen, Peters, Mark, and Wright, James. E ,2000, Thermobarometric constraints on the tectonothermal evolution of the East Humboldt Range Metamorphic Core Complex, Nevada: Geological Society of America Bulletin, v. 112, p. 45-60. 52. Wyld, S. J., and Wright, J. E., 2001, New evidence for Cretaceous strike-slip faulting in the U.S. Cordillera; and implications for terrane displacement, deformation patterns and plutonism: American Journal of Science,301, p. 150-181. 53. Barnes, Calvin G., Burling, Trina C., Burton, Bradford R., Wright, James E., and Karlsson, Haraldur R., 2001, The Harrison Pass pluton: Petrology and geochemistry of a Tertiary synextentional pluton, northeastern Nevada: submitted to Journal of Petrology, v.42. p. 901-929. 54. Wyld, S. J., Rogers, J. W., and Wright, J. E., 2001, Structural evolution within the Luning-Fencemaker fold-thrust belt, Nevada: Progression from back-arc basin collapse to intra-arc shortening: Journal of Structural Geology, v. 23, no. 12, 1971-1995. 55. Amato, J.M., Miller, E.L., Toro,J., and Wright, J.E., 2003, Cretaceous Magmatism on St. Lawrence Island Alaska, and Cape Dezhneev, Northeast Rusa: Geochemistry , 40Ar/39Ar ages, and implications for the tectonic evolution of the bering strait region, in Short Notes on Alaska Geology, Clautice, K., ed., State of Alaska division of Geological and Geophysical Surveys Professional Report. 56. Amato, J. M., Miller, E. L., Wright, J. E., and McIntosh, W. C., 2003, Diabase dike swarms on Seward Peninsula: Implications for the Cretaceous tectonic evolution of the Bering Strait region, Canadian Journal of Earth Sciences. 57. King, E. M., Valley, J.W., Stockli, D.F., and Wright, J.E., 2004, Oxygen isotope trends of granitic magmatism in the Great Basin: Geological Society of America Bulletin, v. 116, p. 451-462. 58. Haxel, G. B., Wright, J.E., Riggs, N.R., Tosdal, R. M., and May D. J., 2005, Middle Jurassic Topawa Group, Baboquivari Mountians, South-Central Zrizona: volcanic and sedimentary record of deep basins within the Jurassic magmatic arc: Geological Society of America Special paper 393, p. 329-358. (INVITED PAPER) 59. Sisson, V.B., Ave Lallemant, H.G., Ostos, M, Blythe, A.E., Snee, L.W., Copeland, P., Wright, J.E., Donelick, R., and Guth, L.R., 2005, Overview of radiometric ages in three allochtonous belts of northern Venezuela: Old ones, new ones, and their impact on regional geology: Geological Society of America Special Paper 394, p. 91-118. (INVITED PAPER) 60. Wright, J. E., and Wyld, S.J.,2006, Gondwanan, Iapetan, Cordilleran interactions: A geodynamic model for the Paleozoic tectonic evolution of the North American Cordillera, in Haggart, J.E., Enkin, R.J., and Monger, J.W.H., eds., Paleogeography of the North American Cordillera: Evidence For and Against Large-Scale Displacements: Geological Association of Canada, Special Paper 46, p. 377-408. (INVITED PAPER) 61. Wyld, S.J., Umhoefer, P., and Wright, J. E.,2006, Reconstructing northern Cordilleran terranes along known Cretaceous and Cenozoic strike-slip faults: Implications for the Baja BC hypothesis and other models, in Haggart, J.E., Enkin, R.J., and Monger, J.W.H., eds., Paleogeography of the North American Cordillera: Evidence For and Against Large-Scale Displacements: Geological Association of Canada, Special Paper 46 (INVITED PAPER) 62. Wright, J.E., and Wyld, S.J., 2007, Alternative tectonic model for Late Jurassic through Early Cretaceous evolution of the Great Valley Group, California, in Cloos, M., Carlson, W.D., Gilbert, M.C., Liou, J.G., and Sorensen, S.S., eds., Convergent Margin Terranes and Associated Regions: A Tribute to W. G. Ernst: Geological Society of America Special Paper 419, p. 81-95. 63. Grove, M.,Wright, J.E., Gehrels, G.E., Cotkin, S.J., and Zou, H.,2008, Non-Laurentian cratonal provenance of Late Ordovician eastern Klamath blueschists and a link to the Alexander Terrane, in Wright, J.E., and Shervais, J.W., eds., Ophiolites, Arcs, and Batholiths: A tribute to Cliff Hopson: Geological Society of America Special Paper 438, p. 223-250, doi: 10.1130/2008.2438(08). 64. Wright, J.E., and Shervais, J.W., eds.,2008, Ophiolites, Arcs, and Batholiths: A tribute to Cliff Hopson: Geological Society of America Special Paper 438, 572 p., doi: 10.1130/2008.2438(08). 65. Haxel, G.B., May, D.J., Anderson, T.H., Tosdal R.M., and Wright, J.E., in press, Geology and Geochemistry of Jurassic Plutonic Rocks, Baboquivari Mountains, South-Central Arizona: 66. Martin, A., Wyld, S.J., Wright, J.E., and Bradford, J.,2010, The Lower Cretaceous King Lear Formation, northwest Nevada: Implications for Mesozoic orogenesis in the western U.S. Cordillera: Geological Society America Bulletin, v. 122, p. 537-562. 67. Colgan, J.P., Wyld, S.J., and Wright, J.E., 2010, Geologic Map of the Vicksburg Canyon 7.5’ quadrangle, Humboldt County, Nevada: Nevada Bureau of Mines and Geology Map 169. 68. Noguera, M. I., Wright, J.E., Urbani, F., and Pindell, J., 2011, U-Pb Geochronology of Detrital Zircons from the Venezuelan Passive Margin: Implications for an Early Cretaceous Proto-Orinoco River System and Proto-Caribbean Ocean Basin Paleogeography: Geologica Acta, v.9, p. 265-272. 69. Wright, J.E., and Wyld, S.J., 2011, Late Cretaceous subduction initiation on the eastern margin of the Caribbean-Colombian Oceanic Plateau (CCOP): One Great Arc of the Caribbean (?): Geosphere, v.7, no. 2, p 468-493. 70. Dumitru, T. A., Wakabayashi, J., Wright, J. E., Wooden, J. L.,2010, Early Cretaceous (ca. 123 Ma) transition from nonaccretionary behavior to strongly accretionary behavior within the Franciscan subduction complex: Tectonics, v. 29. 71. LaMaskin, T., Vervoort, J., Dorsey, R., and Wright, J.E., 2011, Early Mesozoic paleogeography and tectonic evolution of the western United States: Insights from detrital zircon U-Pb geochronology, Blue Mountains Province, northeastern Oregon: Geological Society America Bulletin, v. 123, p. 1939-1965. 72. Dumitru, T., Ernst, G., Wright, J.E., Wooden, J.L., Wells, R.E., Farmer, L.P., Kent, A., and Graham, S.A., 2012, Eocene extension in Idaho generated massive sediment floods into the Franciscan trench, and into the Tyee, Great Valley, and Green River basins: Geology, published online Nov. 6 2012 73. Sharman, G.R., Graham, S.A., Grove, M., Kimbrough, D.L., and Wright, J.E., 2015, Detrital Zircon Provenance of the Late Cretaceous-Eocene California Forearc: Influence of Laramide Low-Angle Subduction on Sediment Dispersal and Paleogeography: Geological Society of America Bulletin, January 2015, v. 127, no. 1-2, p. 38-60. 74. Kenneth Johnson, Joshua J. Schwartz, Jiří Žák, Kryštof Verner,Calvin G. Barnes, Clay Walton, Joseph L. Wooden, James E. Wright,and Ronald W. Kistler, 2015, Composite Sunrise Butte pluton: Insights into Jurassic–Cretaceous collisional tectonics and magmatism in the Blue Mountains Province, northeastern OregonGeological Society of America Special Papers, 513, p. SPE513-10, first published on November 6, 2015, doi:10.1130/2015.2513(10).