Depths and temperatures of <10.5 Ma mantle melting and the lithosphere-asthenosphere boundary below southern Oregon and northern California

Geochemistry, Geophysics, Geosystems

Volumn 14, Issue 4, 2013, Pages 864-879

  Till, Christy B ^a,b   Grove, Timothy L ^a   Carlson, Richard W ^b   Donnelly Nolan, Julie M ^c   Fouch, Matthew J ^b   Wagner, Lara S ^d   Hart, William K ^e  

^a MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

^b GEOPHYSICAL LABORATORY   (United States)

^c U S GEOLOGICAL SURVEY   (United States)

^d UNIVERSITY OF NORTH CAROLINA   (United States)

^e MIAMI UNIVERSITY   (United States)

Author keywords

Cascades arc; depth of melting; high alumina olivine tholeiite; High Lava Plains; lithosphere asthenosphere boundary; Modoc Plateau; thermometry

Indexed keywords

ALUMINA; BASALT; GEOCHEMISTRY; GEOPHYSICS; OLIVINE; STRUCTURAL GEOLOGY; TECTONICS; THERMOMETERS;

CASCADES ARC; HIGH LAVA PLAINS; LITHOSPHERE-ASTHENOSPHERE BOUNDARY; MODOC PLATEAU; THERMOMETRY; THOLEIITE;

MELTING;

ASTHENOSPHERE; BAROMETRY; LAVA; LITHOSPHERE; MANTLE; MELTING; SUBDUCTION; TECTONIC SETTING; THOLEIITE;

CALIFORNIA; CASCADE RANGE; MODOC PLATEAU; OREGON; UNITED STATES;

EID: 84878418909     PISSN: None     EISSN: 15252027     Source Type: Journal    
DOI: 10.1002/ggge.20070     Document Type: Article

References (115)

1. Armstrong, R. L., W. H. Taubeneck, and, P. O. Hales, (1977), Rb-Sr and K-Ar geochronometry of Mesozoic granitic rocks and their Sr isotopic composition, Oregon, Washington, and Idaho, Geol. Soc. Am. Bull., 88, 397-411.
2. Atwater, T., (1970), Implications of plate tectonics for the Cenozoic evolution of western North America, Geol. Soc. Am. Bull., 81, 3513-3536.
3. Atwater, T., and, J. Stock, (1998), Pacific-North America Plate Tectonics of the Neogene Southwestern United States: An Update, International Geology Review, 40 (5), 375-402, doi:10.1080/00206819809465216.
4. Bacon, C., (1990), Calc-alkaline, shoshonitic, and primitive tholeiitic lavas from monogenetic volcanoes near Crater Lake, Oregon, J. Petrol., 31 (1), 135-166.
5. Bacon, C., P. E. Bruggman, R. Christiansen, M. A. Clynne, J. M. Donnelly-Nolan, and, W. Hildreth, (1997), Primitive magmas at five cascade volcanic fields: Melts from hot, heterogeneous sub-arc mantle, Can. Mineral., 35, 397-423.
6. Baker, M., T. L. Grove, R. J. Kinzler, J. M. Donnelly-Nolan, and, G. A. Wandless, (1991), Origin of compositional zonation (high-alumina basalt to basaltic andesite) in the giant crater lava field, Medicine Lake Volcano, Northern California, J. Geophys. Res., 96 (B13), 21819-21842.
7. Baker, M., T. Grove, and, R. Price, (1994), Primitive basalts and andesites from the Mt Shasta Region, N California-Products of varying melt fraction and water-content, Contrib. Mineral. Petrol., 118 (2), 111-129.
8. Barnes, C. G., (1992), Petrology of monogenetic volcanoes, Mount Bailey Area, Cascade Range, Oregon, J. Volcanol. Geotherm. Res., 52, 141-156. (Pubitemid 23386388)
9. Bartels, K., R. Kinzler, and, T. Grove, (1991), High-pressure phase-relations of primitive high-alumina basalts from Medicine Lake Volcano, Northern California, Contrib. Mineral. Petrol., 108 (3), 253-270.
10. Blakely, R. J., R. Christiansen, M. Guffanit, R. E. Wells, J. M. Donnelly-Nolan, L. J. P. Muffler, M. A. Clynne, and, J. G. Smith, (1997), Gravity anomalies, quaternary vents, and quaternary faults in the southern Cascade Range, Oregon and California: Implications for arc and backarc evolution, J. Geophys. Res., 102 (B10), 22513-22527.
11. Bondre, N., (2006), Field and geochemical investigation of basaltic magmatism in the western United States and western India, 256 pp., Miami University.
12. Borg, L. E., J. Blichert-Toft, and, M. Clynne, (2002), Ancient and modern subduction zone contributions to the mantle sources of lavas from the Lassen Region of California inferred from Lu-Hf isotopic systematics, J. Petrol., 43 (4), 705-723. (Pubitemid 34287498)
13. Borg, L. E., M. Clynne, and, T. Bullen, (1997), The variable role of slab-derived fluids in the generation of a suite of primitive calc-alkaline lavas from the sourthernmost Cascades, California, Can. Mineral., 35, 425-452.
14. Brueseke, M. E., M. T. Heizler, W. K. Hart, and, S. A. Mertzman, (2007), Distribution and geochronology of Oregon Plateau (USA) flood basalt volcanism: The Steens Basalt revisited, J. Volcanol. Geotherm. Res., 161 (3), 187-214. (Pubitemid 46237406)
15. Cameron, B. I., J. A. Walker, M. J. Carr, L. C. Patino, O. Matias, and, M. D. Feigenson, (2003), Flux versus decompression melting at stratovolcanoes in southeastern Guatemala, J. Volcanol. Geotherm. Res., 119, 21-50. (Pubitemid 35348428)
16. Camp, V. E., (2004), Mantle dynamics and genesis of mafic magmatism in the intermontane Pacific Northwest, J. Geophys. Res., 109 (B8), doi:10.1029/2003JB002838. (Pubitemid 39428434)
17. Camp, V. E., and, B. B. Hanan, (2008), A plume-triggered delamination origin for the Columbia River Basalt Group, Geosphere, 4, 480-495.
18. Carlson, R., (1984), Isotopic constraints on Columbia River flood-basalt genesis and the nature of the subcontinental mantle, Geochim. Cosmochim. Acta, 48 (11), 2357-2372.
19. Carlson, R., and, W. K. Hart, (1987), Crustal genesis on the Oregon Plateau, J. Geophys. Res., 92 (B7), 6191-6206.
20. Carmichael, I. S. E., R. A. Lange, C. M. Hall, and, P. R. Renne, (2006), Faulted and tilted Pliocene olivine-tholeiite lavas near Alturas, NE California, and their bearing on the uplift of the Warner Range, GSA Bull., 118 (9/10), 1196-1211. (Pubitemid 44446178)
21. Chen, C.-W., D. E. James, and, L. S. Wagner, (2011), Upper mantle low-velocity layers beneath the High Lava Plains imaged by scattered-wavefield migration, Eos Trans. AGU, Abstract #T51H-2470.
22. Christiansen, R., G. R. Foulger, and, J. R. Evans, (2002), Upper-mantle origin of the Yellowstone hotspot, Geol. Soc. Am. Bull., 114 (10), 1245-1256. (Pubitemid 35369064)
23. Christiansen, R., and, P. W. Lipman, (1972), Cenozoic volcanism and plate-tectonic evolution of the Western United States II. Late Cenozoic, Phil. Tran. R. Soc. Lon. A., 271, 249-284.
24. Christiansen, R. L., and, E. H. McKee, (1978), Late Cenozoic volcanic and tectonic evolution of the Great Basin and Columbia intermontane regions, in Cenozoic Tectonics and Regional Geophysics of the Western Cordillera, Geol. Soc. Am. Mem. 152, edited by, R. B. Smith, and, G. P. Eaton, p. 283-311, Geological Society of America, Boulder, Colorado.
25. Christiansen, R., and, R. L. Yeats, (1992), Post-Laramide geology of the U.S. Cordilleran region, in The Cordilleran orogen: Conterminous U.S.: Geology of North America, edited by, B. C. Burchfiel, pp. 261-406, Geological Society of America, Boulder, Colorado.
26. Colgan, T. A., Dumitru, and, E. L. Miller, (2004), Diachroneity of Basin And Range extension and Yellowstone hotspot volcanism in northwestern Nevada, Geol. Soc. Am. Bull., 32, 121-124. (Pubitemid 38306247)
27. Conder, J. A., (2002), On the decompression melting structure at volcanic arcs and back-arc spreading centers, Geophys. Res. Lett., 29 (15).
28. Cox, C., (2011), A controlled-source seismic and gravity study of the High Lava Plains (HLP), 110 pp., University of Oklahoma.
29. Cross, T. A., and, R. H. J. Pilger, (1978), Constraints on absolute motion and plate interaction inferred from Cenozoic igneous activity in the western United States, Am. J. Sci., 278, 865-902.
30. Donnelly-Nolan, J. M., (2010), Geologic map of Medicine Lake Volcano, Northern California, USGS Scientific Investigations Map 2927.
31. Donnelly-Nolan, J. M., and, T. L. Grove, (2009), What is Newberry Volcano?, Geol. Soc. Amer. Abst. Prog., 41, 63.
32. Donnelly-Nolan, J. M., T. L. Grove, M. A. Lanphere, D. C. Champion, and, D. A. Ramsey, (2008), The eruptive history and tectonic setting of Medicine Lake Volcano, a large rear-arc volcano in the southern Cascades, J. Volcanol. Geotherm. Res., 177, 313-328.
33. Draper, D. S., (1991), Late Cenozoic bimodal magmatism in the northern Basin and Range Province of southeastern Oregon, J. Volcanol. Geotherm. Res., 47, 299-328.
34. Druken, K. A., M. D. Long, and, C. Kincaid, (2011), Patterns in seismic anisotropy driven by rollbakc subduction beneath the High Lava Plains, Geophys. Res. Lett., 38 (L13310), doi: 10.1029/2011GL047541.
35. Duffield, W., and, R. O. Fournier, (1974), Reconnaissance study of the geothermal resources of Modoc County, California, U.S. Geological Survey Open-File Report, 74-1024, 21.
36. Eagar, K. C., M. J. Fouch, D. E. James, and, R. W. Carlson, (2011), Crustal structure beneath the High Lava Plains of eastern Oregon and surrounding regions from receiver function analysis, J. Geophys. Res., 116 (B02313), doi: 10.1029/2010JB007795.
37. Eberle, M. A., O. Grasset, and, C. Sotin, (2002), A numerical study of the interaction between the mantle wedge, subducting slab, and overriding plate, Phys. Earth Planet. Inter., 134, 191-202. (Pubitemid 35389761)
38. Elkins Tanton, L. T., T. L. Grove, and, J. Donnelly-Nolan, (2001), Hot, shallow mantle melting under the Cascades volcanic arc, Geology, 29 (7), 631-634. (Pubitemid 35302257)
39. Faccenna, C., T. W. Becker, S. Lallemand, Y. Lagabrielle, F. Funiciello, and, C. Piromallo, (2010), Subduction-triggered magmatic pulses: A new class of plumes?, Earth Planet. Sci. Lett., 299, 54-68.
40. Funiciello, F., M. Moroni, C. Piromallo, C. Faccenna, A. Cenedese, and, H. A. Bui, (2006), Mapping mantle flow during retreating subduction: Laboratory models analyzed by feature tracking, J. Geophys. Res., 111 (B03402), doi: 10.1029/2005JB003792. (Pubitemid 43670753)
41. Furukawa, Y., (1993), Depth of the decoupling plate interface and thermal structure under arcs, J. Geophys. Res., 98 (B11), 20005-20013.
42. Gaetani, G. A., and, T. L. Grove, (1998), The influence of water on melting of mantle peridotite, Contrib. Mineral. Petrol., 131 (4), 323-346. (Pubitemid 128662647)
43. Gashawbeza, E. M., S. L. Klemperer, C. K. Wilson, and, E. L. Miller, (2008), Nature of the crust beneath northwest Basin and Range province from teleseismic receiver function data, J. Geophys. Res., 113 (B10308), doi:10.1029/2007JB005306.
44. Geist, D., and, M. Richards, (1993), Origin of the Columbia Plateau and Snake River plain: deflection of the Yellowstone plume, Geology, 21, 789-792. (Pubitemid 24419350)
45. Graham, D. W., M. R. Reid, B. T. Jordan, A. L. Grunder, W. P. Leeman, and, J. E. Lupton, (2009), Mantle source provinces beneath the Northwestern USA delimited by helium isotopes in young basalts, J. Volcanol. Geotherm. Res., 188 (1-3), 128-140.
46. Grove, T. L., J. Barr, C. B. Till, J. D. Donnelly-Nolan, and, R. W. Carlson, (2009), Hot shallow melting in the High Lava Plains, Oregon, Geological Society of American Abstracts with Programs, 41, 571.
47. Grove, T. L., R. J. Kinzler, and, W. B. Bryan, (1992), Fractionation of mid-ocean ridge basalt (MORB), in Mantle Flow and Melt Generation at Mid-Ocean Ridges, Geophys. Mongr. Ser. 71, edited by, J. P. Morgan, D. K. Blackman, and, J. M. Sinton, p. 281-310, AGU, Washington D.C. doi: 10.1029/GM071p0281.
48. Grove, T. L., S. Parman, S. Bowring, R. Price, and, M. Baker, (2002), The role of an H2O-rch fluid component in the generation of primitive basaltic andesites and andesites from the Mt. Shasta region, N California, Contrib. Mineral. Petrol., 142 (4), 375-396. (Pubitemid 34082419)
49. Hales, T. C., D. L. Abt, E. D. Humphreys, and, J. J. Roering, (2005), A lithospheric instability origin for Columbia River flood basalts and Wallowa Mountains uplift in northeast Oregon, Nature, 438, 842-845. (Pubitemid 41753064)
50. Hanson-Hedgecck, S., L. S. Wagner, M. J. Fouch, and, D. E. James, (2012), Constraints on the causes of mid-Miocene volcanism in the Pacific Northwest US from ambient noise tomography, Geophys. Res. Lett., 39 (L05301), doi: 10.1029/2012GL051108.
51. Hart, W., (1985), Chemical and isotopic evidence for mixing between depleted and enriched mantle, Northwestern USA, Geochim. Cosmochim. Acta, 49 (1), 131-144.
52. Hart, W., J. Aronson, and, S. Mertzman, (1984), Areal distribution and age of low-K, high-alumina olivine tholeiite magmatism in the northwestern Great Basin, Geol. Soc. Am. Bull., 95 (2), 186-195.
53. Hart, W., and, R. Carlson, (1987), Tectonic controls on magma genesis and evolution in the northwestern United States, J. Volcanol. Geotherm. Res., 32, 119-135.
54. Hart, W., R. Carlson, and, S. Shirey, (1997), Radiogenic Os in primitive basalts from the northwestern USA: Implications for petrogenesis, Earth Planet. Sci. Lett., 150, 103-116.
55. Hughes, S. S., and, E. M. Taylor, (1986), Geochemistry, petrogenesis and tectonic implications of central High Cascade mafic platform lavas, Geol. Soc. Am. Bull., 97, 1024-1036.
56. Humphreys, E. D., (1995), Post-Laramide removal of the Farallon slab, western United States, Geology, 23 (11), 987-990. (Pubitemid 26459464)
57. Humphreys, E. D., and, D. D. Coblentz, (2007), North American dynamics and western U.S. tectonics, Rev. Geophys., 45 (RG3001), doi: 10.1029/2005RG000181. (Pubitemid 350168233)
58. Humphreys, E. D., K. Dueker, D. L. Schutt, and, R. B. Smith, (2000), Beneath Yellowstone: evaluating plume and nonplume models using teleseismic images of the upper mantle, GSA Today, 10, 1-7. (Pubitemid 32824776)
59. Humphreys, E., E. Hessler, K. Dueker, E. Erslev, G. L. Farmer, and, T. Atwater, (2003), How Laramide-age hydration of North America by the Farallon slab controlled subsequent activity in the western U.S., in The George A. Thompson volume, Inter. Book Series 7, edited by, S. L. Klemperere, and, W. G. Ernst, pp. 525-544, Geol. Soc. Am., Boulder, Colorado.
60. Johnson, D. M., P. R. Hooper, and, R. M. Conrey, (1999), XRF analysis of rocks and minerals for major and trace elements on a single low dilution Li-tetraborate fused bead, Adv. X-Ray Anal., 41, 843-867.
61. Jordan, B. T., (2004), Geochronology of age-progressive volcanism of the Oregon High Lava Plains: Implications for the plume interpretation of Yellowstone, J. Geophys. Res., 109 (B10), doi: 10.1029/2003JB002776. (Pubitemid 40098484)
62. Katoh, S., T. Danhara, W. K. Hart, and, G. WoldeGabriel, (1999), Use of sodium polytungstate solution in the purfication of volcanic glass shards for bulk chemical analysis, Nat. Hum. Act., 4, 45-54. (Pubitemid 129614423)
63. Kelbert, A., G. Egbert, and, C. deGroot-Hedlin, (2012), Crust and upper mantle electrical conductivity beneath the Yellowstone Hotspot Track, Geology, 40 (5), 447-450.
64. Kelemen, P. B., J. L. Rilling, E. M. Parmentier, L. Mehl, and, B. R. Hacker, (2003), Thermal structure due to solid-state flow in the mantle wedge beneath arcs, in Inside the Subduction Factory, Geophysical Monograph Series, edited by, J. Eiler, pp. 293-311, AGU, Washington, DC.
65. Kinzler, R. J., and, T. L. Grove, (1992), Primary magmas of midocean ridge basalts 1. Experiments and methods, J. Geophys. Res., 97 (B5), 6885-6906.
66. Leaver, D. S., W. D. Mooney, and, W. M. Kohler, (1984), A seismic refraction study of the Oregon Cascades, J. Geophys. Res., 89 (NB5), 3121-3134.
67. Leeman, W. P., J. Oldow, and, W. K. Hart, (1992), Lithosphere-scale thrusting in the western US Cordillera as constrained by Sr and Nd isotopic transitions in Neogene volcanic rocks, Geology, 20 (1), 63-66.
68. Lerch, D. W., E. Miller, M. McWilliams, and, J. Colgan, (2008), Tectonic and magmatic evolution of the northwestern Basin and Range and its transition to unextended volcanic plateaus: Black Rock Range, Nevada, Geol. Soc. Am. Bull., 120 (3-4), 300-311. (Pubitemid 351756640)
69. Lin, F.-C., M. H. Ritzwoller, Y. Yang, M. P. Moschetti, and, M. J. Fouch, (2010), Complex and variable crustal and uppermost mantle seismic anisotropy in the western United States, Nat. Geosci., 4 (1), 55-61.
70. Lipman, P. W., H. J. Protska, and, R. Christiansen, (1972), Cenozoic volcanism and plate-tectonic evolution of the western United States I. Early and middle Cenozoic, Philos. Trans. R. Soc. Lond. A, 271, 217-248.
71. Long, M. D., H. Gao, A. Klaus, L. S. Wagner, M. J. Fouch, D. E. James, and, E. D. Humphreys, (2009), Shear wave splitting and the patterns of mantle flow beneath eastern Oregon, Earth Planet. Sci. Lett., 288, 359-369.
72. Long, M. D., C. B. Till, K. A. Druken, R. W. Carlson, L. S. Wagner, M. J. Fouch, D. E. James, T. L. Grove, N. Schmerr, and, C. Kincaid, (2012), Mantle dynamics beneath the Pacific Northwest and the generation of voluminous back-arc volcanism, Geochem. Geophys. Geosyst., 13 (1), Q0AN01, doi: 10.1029/2012GC004189.
73. MacLeod, N. S., G. W. Walker, and, E. H. McKee, (1976), Geothermal significance of eastward increase in age of upper Cenozoic rhyolite domes in southeast Oregon, Proceedings, 2nd United Nations Symposium on the Development and Use of Geothermal Resources, I, pp. 465-474.
74. Manduca, C. A., L. T. Silver, and, H. E. Taylor, (1992), 87Sr/86Sr and 18O/16O isotopic systematics and geochemistry of granitoid plutons across a steeply-dipping boundary between contrasting lithospheric blocks in western Idaho, Contrib. Mineral. Petrol., 109, 355-372.
75. McCrory, P. A., J. L. Blair, F. Waldhauser, and, D. H. Oppenheimer, (2012), Juan de Fuca slab geometry and its relation to Wadati-Benioff zone seismicity, J. Geophys. Res., 117 (B09306), doi: 10.1029/2012JB009407.
76. Mertzman, S., (2000), K-Ar results for the southern Oregon-northern California Cascade Range, Oregon Geol., 62, 99-122.
77. Miyashiro, A., (1974), Volcanic rock series in island arcs and active continental margins, Am. J. Sci., 274, 321-355.
78. Mooney, W. D., and, C. S. Weaver, (1989), Regional crutal structure and tectonics of the the Pacific Coastal States: California, Oregon and Washington, in Geophysical Framework of the Continental United States, edited by, L. C. Pakiser, and, W. D. Mooney, pp. 129-161, Geol. Soc. Am., Boulder, Colorado.
79. Obrebski, M., R. M. Allen, F. Pollitz, and, S.-H. Hung, (2011), Lithosphere-asthenosphere interaction beneath the western United States from the joint inversion of body-wave traveltimes and surface-wave phase velocities, Geophys. J. Int., 185 (2), 1003-1021.
80. Patro, P. K., and, G. Egbert, (2008), Regional conductivity structure of Cascadia: Preliminary resutls from 3D inversion of USArray transportably array magnetotelluric data, Geophys. Res. Lett., 35 (L20311), doi: 10.1029/2008GL035326.
81. Plank, T., and, C. H. Langmuir, (1988), An evaluation of the global variations in the major element chemistry of arc basalts, Earth Planet. Sci. Lett., 90, 349-370.
82. Righter, K., (2000), A comparison of basaltic volcanism in the Cascades and western Mexico: Compositional diversity in continental arcs, Tectonophysics, 318, 99-117. (Pubitemid 30309155)
83. Ritter, J. R. R., and, J. R. Evans, (1997), Deep structure of Medicine Lake volcano, California, Tectonophysics, 275, 221-241.
84. Roth, J. B., M. J. Fouch, D. E. James, and, R. Carlson, (2008), Three-dimensional seismic velocity structure of the northwestern United States, Geophys. Res. Lett., 35 (15), doi: 10.1029/2008GL034669.
85. Rowland, A., and, J. H. Davies, (1999), Buoyancy rather than rheology controls the thickness of the overriding mechanical lithosphere at subduction zones, Geophys. Res. Lett., 26 (19), 3037-3040. (Pubitemid 30045081)
86. Ruscitto, D. M., P. J. Wallace, E. R. Johnson, A. J. R. Kent, and, I. N. Bindeman, (2010), Volatile contents of mafic magmas from cinder cones in the Central Oregon High Cascades: Implications for magma formation and mantle conditions in a hot arc, Earth Planet. Sci. Lett., 298 (1-2), 153-161.
87. Scarberry, K. C., A. J. Meigs, and, A. L. Grunder, (2010), Faulting in a propagating continental rift: Insight from the late Miocene structural development of the Abert Rim fault, southern Oregon, USA, Tectonophysics, 488 (1-4), 71-86.
88. Schmandt, B., K. Dueker, E. D. Humphreys, and, S. E. Hansen, (2012), Hot mantle upwelling across the 660 beneath Yellowstone, Earth Planet. Sci. Lett., 331-332, 224-236.
89. Schmandt, B., and, E. D. Humphreys, (2010), Complex subduction and small-scale convection revealed by body-wave tomography of the western United States upper mantle, Earth Planet. Sci. Lett., 297 (3-4), 435-445.
90. Schmidt, M. E., A. L. Grunder, and, M. C. Rowe, (2008), Segmentation of the Cascade Arc as indicated by Sr and Nd isotopic variation among diverse primitive basalts, Earth Planet. Sci. Lett., 266, 166-181.
91. Sherrod, D. R., and, J. G. Smith, (1990), Quaternary extrusion rates of the Cascade Range, Northwestern United States and Southern British Columbia, J. Geophys. Res., 95 (B12), 19465-19474.
92. Shoemaker, K. A., and, W. K. Hart, (2002), Temporal controls on basalt genesis and evolution on the Owyhee Plateau, Idaho and Oregon, in Tectonic and Magmatic Evolution of the Snake River Plain Volcanic Province, Idaho Geological Survey Bulletin, 30,edited by, B. Bonnichsen, C. White, and, M. McCurry, pp. 313-328.
93. Sisson, T. W., and, S. Bronto, (1998), Evidence for pressure-release melting beneath magmatic arcs from basalt at Galunggung, Indonesia, Nature, 391, 883-886. (Pubitemid 28157663)
94. Sisson, T. W., and, T. L. Grove, (1993), Experimental investigations of the role of H2O in calc-alkaline differentiation and subduction zone magmatism, Contrib. Mineral. Petrol., 113 (2), 143-166. (Pubitemid 23389918)
95. Smith, G. A., L. W. Snee, and, E. M. Taylor, (1987), Stratigraphic, sedimentologic, and petrologic record of late Miocene subsidence of the central Oregon High Cascades, Geology, 15, 389-392.
96. Swanson, D. A., T. L. Wright, P. R. Hooper, and, R. D. Bentley, (1979), Revisions in stratigraphic nomenclature of the Columbia River Basalt Group, US Geol. Sur. Bull., 1457-G, G1-G59.
97. Syracuse, E. M., P. E. van Keken, and, G. A. Abers, (2010), The global range of subduction zone thermal models, Phys. Earth Planet. Inter., 183, 73-90.
98. Till, C. B., T. L. Grove, and, M. J. Krawczynski, (2012), A melting model for variably depleted and enriched lherzolite in the plagioclase and spinel stability fields, J. Geophys. Res., 117 (B06206), doi: 10.1029/2011JB009044.
99. Tolan, T., S. Reidel, M. Beeson, J. Anderson, K. Fecht, and, D. Swanson, (1989), Revisions to the estimates of the areal extent and volume of the Columbia River Basalt Group, edited by, S. Reidel, and, P. Hooper, pp. 367-378, Geological Society of America Special Paper, Denver, Colorado.
100. Tormey, D. R., T. L. Grove, and, W. B. Bryan, (1987), Experimental petrology of normal MORB near the Kane Fracture Zone: 22°-25°N, mid-Atlantic Ridge, Contributions to Mineralogy and Petrology, vol 96, p. 121-139, doi: 10.1007/BF00375227.
101. Trench, D., A. J. Meigs, and, A. L. Grunder, (2012), Termination of the northwestern Basin and Range province into a clockwise rotating region of transtension and volcanism, southeast Oregon, J. Struct. Geol., 39, 52-65.
102. Wada, I., and, K. Wang, (2009), Common depth of slab-mantle decoupling: Reconciling diversity and uniformity of subduction zones, Geochem. Geophys. Geosyst., 10 (10), doi: 10.1029/2009GC002570.
103. Wagner, L. S., D. W. Forsyth, M. J. Fouch, and, D. E. James, (2010), Detailed three-dimensional shear wave velocity structure of the northwestern United States from Rayleigh wave tomography, Earth Planet. Sci. Lett., 299, 273-284.
104. Wagner, L. S., M. J. Fouch, D. E. James, and, S. Hanson-Hedgecock, (2012), Crust and upper mantle structure beneath the Pacific Northwest from joint inversion of ambient noise and earthquake data, Geochem. Geophys. Geosyst., 13 (Q0AN03), doi: 10.1029/2012GC04353.
105. Walker, G. W., (1977), Geologic map of the Oregon east of the 121st meridian, USGS Miscellaneous Investigations Series Map I-902.
106. Walowski, K. J., D. J. Rasmussen, P. J. Wallace, and, M. Clynne, (2012), Understanding magma formation and mantle conditions in the Lassen segment of the Cascade Arc: Insights from volatile contents of olivine-hosted melt inclusions, AGU Fall Meeting Abstracts #V21C-07, San Francisco CA.
107. Warren, L. M., J. A. Snoke, and, D. E. James, (2008), S-wave velocity structure beneath the High Lava Plains, Oregon, from Rayleigh-wave dispersion inversion, Earth Planet. Sci. Lett., 274, 121-131.
108. Waters, A. C., (1962), Basalt magma types and their tectonic associations: Pacific Northwest of the United States, in The Crust of the Pacific Basin, edited by, G. C. Macdonald, and, H. Kuno, American Geophysical Union Geophyscial Monograph, Washington D.C.
109. Wells, R. E., and, P. L. Heller, (1988), The relative contribution of accreton, shear, and extension to Cenozoic tectonic rotation in the Pacific Northwest, Geol. Soc. Am. Bull., 100, 325-338.
110. Wesnousky, S. G., (2005), The San Andreas and Walker Lane fault systems, western North America: Transpression, transtension, cumulative slip and the structural evolution of a major transform plate boundary, J. Struct. Geol., 27, 1505-1512. (Pubitemid 41258611)
111. West, J. D., M. J. Fouch, J. B. Roth, and, L. T. Elkins-Tanton, (2009), Vertical mantle flow associated with a lithospheric drip beneath the Great Basin, Nat. Geosci., 2, 439-444.
112. Wiens, D. A., J. A. Conder, and, U. H. Faul, (2008), The seismic structure and dynamics of the mantle wedge, Ann. Rev. Earth Planet. Sci., 36, 421-455. (Pubitemid 351883481)
113. Wilson, D. S., (1988), Tectonic history of the Juan de Fuca Ridge over the last 40 million years, J. Geophys. Res., 93 (B10), 11863-11876, doi: 10.1029/JB093iB10p11863.
114. Yang, H. J,., R. J. Kinzler, and, T. L. Grove, (1996) Experiments and models of anhydrous, basaltic olivine-plagioclase-augite saturated melts from 0.001 to 10 kbar, Contributions to Mineralogy and Petrology, 124, 1-18. doi: 10.1007/s004100050169.
115. Zucca, J., G. Fuis, B. Milkereit, and, W. Mooney, (1986), Crustal structure of northeastern California, J. Geophys. Res., 91 (B7), 7359-7382.