AARON SEI YOSHINOBU

Department of Geosciences, Texas Tech University, Lubbock, TX 79409

Phone: 806-742-4025, Email:  Aaron.Yoshinobu@TTU.EDU,

http://www.gesc.ttu.edu/Fac_pages/Yoshinobu_index.html

 

Education

 

Ph.D., Earth Sciences, 1999. “Magma chamber construction and deformation at oceanic spreading centers”, University of Southern California. Advisor: S.R. Paterson

 

M.S., Geological Sciences, 1994. “Quantitative relation of structural and geochemical studies to the emplacement of shallow crustal plutons”, San Diego State University. Advisor: G.H. Girty

 

B.S., Geological Sciences, 1992. “Dynamothermal contact metamorphism in the aureole of the shallowly emplaced Emigrant Gap pluton, northern Sierra Nevada, CA”, San Diego State University.

 

Professional Experience

 

2005-present: Associate Professor, Department of Geosciences, Texas Tech University.

1999 (Fall)-present: Assistant Professor, Department of Geosciences, Texas Tech University.

1999: Postdoctoral Fellowship, Woods Hole Oceanographic Institution, Declined.

1997: Shipboard scientist, Structural Geologist, Ocean Drilling Program Leg 176, Return to Hole 735B, Southwest Indian Ridge.

1994: Mobil Production and Exploration, U.S.A., Production Geologist, Kern Asset Team, Bakersfield, CA.

 

Professional Affiliations

American Geophysical Union, Geological Society of America, National Association of Geoscience Teachers, Robinson Jeffers Association

 

Publications (number in brackets indicates number of times cited according to ISI Web of Knowledge and other sources, May 2004)

 

2007:

 

Barnes, C.G., Frost, C.D., Yoshinobu, A.S., McArthur, K., Barnes, M.A., Allen, C.M., Nordgulen, Į., and Prestvik, T. Timing of sedimentation, metamorphism, and plutonism in the Helgeland Nappe Complex, north-central Norwegian Caledonides. Geosphere, v. 3, p. 683-703.

Yoshinobu, A.S. and Barnes, C.G. In press. Discussion of, Is stoping a volumentrically significant pluton emplacement process? Geological Society of America Bulletin.

 

2006:

 

Chatterjee, S., Guven, N., Yoshinobu, A., Donofrio, R., Shiva structure: A possible KT boundary impact crater on the western shelf of India: Special Publications of the Museum of Texas Tech University, v. 50, 39 p.

 

2005:

 

Dumond, G., Yoshinobu, A.S., Barnes, C.G., Mid-crustal emplacement of the Sausfjellet pluton, central Norway: Ductile flow, stoping and in situ assimilation.  Geological Society of America Bulletin, v. 117, p. 383-395. [First author is an M.S. student co-advised by Yoshinobu.]

 

2004:

 

Barnes, C.G., Dumond, G., Yoshinobu, A.S., Prestvik, T., Assimilation and crystal accumulation during construction of a mid-crustal magma chamber: The Sausfjellet pluton, north-central Norway. Lithos, v. 75, p. 389-412.

Yoshinobu, A.S., and Harper, G.D. 2004. Hypersolidus deformation in the lower crust of the Josephine ophiolite: Evidence for kinematic decoupling between the upper and lower oceanic crust:  Journal of Structural Geology, v. 26, p. 157-169.

 

2003:

Yoshinobu, A.S., Fowler, T.K., Paterson, S.R., Llambias, E., Sato, A., Tickji, H. A view from the roof: magmatic stoping in the shallow crust, Chita pluton, Argentina. Journal of Structural Geology, v. 25, p. 1037-1048.

 

2002:

Barnes, C.G., Yoshinobu, A.S., Prestvik, T., Nordgulen, Į., Karlsson, H.R., and Sundvoll, B., 2002, Mafic magma intraplating: Anatexis and hybridization in arc crust, Bindal Batholith, Norway: Journal of Petrology, v. 43, p. 2171-2190. [2]

Yoshinobu, A.S., and Hirth, G. 2002, Experimental and microstructural constraints on the rheology of partially molten gabbro beneath oceanic spreading centers: Journal of Structural Geology, v. 24, p. 1101-1107. [1]

Yoshinobu, A.S., Barnes, C.G., Nordgulen, Į., Prestvik, T., Fanning, M., Pedersen, R.B., 2002, Ordovician contractional deformation, magmatism, and rapid exhumation in the Caledonides of central Norway. Geology, v. 30, p. 883-886. [Includes cover photograph of October 2002 issue] [10]

 

2000:

 

Dick, H.J.B. and Leg 176 Shipboard Party, 2000, A long, in-situ section of the lower oceanic crust:  Results of ODP Leg 176 Drilling at the Southwest Indian Ridge: Earth and Planetary Science Letters, v. 179, p. 31-51. [40]

Robinson, P.T., Dick, H.J.B., Natland, J.H., and Leg 176 Shipboard Party, 2000, Lower oceanic crust formed at an ultra-slow-spreading ridge: Ocean Drilling Program Hole 735B, Southwest Indian Ridge: In Dilek, Y., Moores, E.M., Elthon, D., Nicolas, A., eds., Ophiolites and oceanic crust: new insights from field studies and the ocean drilling program: Boulder, Colorado, Geological Society of America Special Paper 349, p. 75-86.

Yoshinobu, A.S., and Girty, G.H., Measuring host rock volume changes during magma emplacement:  Reply: Journal of Structural Geology, v. 22, p. 521-522.

 

1999:

 

Dick, H.J.B., Natland, J., and Miller, J., and Leg 176 Shipboard Party.  Initial Results from ODP Leg 176, Return to Hole 735B.  Proceedings of the Ocean Drilling Program, College Station TX.

Yoshinobu, A.S., and Schmidt, K.L., Pluton emplacement during transpression in brittle crust:  New views from analogue experiments:  Comment:  Geology, v. 27, p. 670-671. [1]

Yoshinobu, A.S. and Girty, G.H.,  Measuring host-rock volume changes during magma emplacement.  Journal of Structural Geology, v. 21, p. 111-116. [6]

 

1998:

 

Paterson, S.R., Fowler, T.K., Schmidt, K.L., Yoshinobu, A.S., and Miller, R.B., Interpreting magmatic fabrics in plutonic rocks: Lithos, v. 44, p. 53-82. [36]

Yoshinobu, A.S., Okaya, D.A., and Paterson, S.R., Modeling the thermal evolution of fault-controlled magma emplacement models:  Implications for the solidification of granitoid plutons: Journal of Structural Geology, v. 20, p. 1205-1218. [15]

 

Publications prior to 1998 

 

Girty, G.H., Hanson, A.D., Yoshinobu, A.S., Knaack, C., and Johnson, D., 1993.  Provenance of Paleozoic mudstones within a contact metamorphic aureole determined by REE, Th, and Sc analyses, Sierra Nevada, California:  Geology, v. 21, p. 363-367. [11]

Girty, G.H., Yoshinobu, A.S., Girty, M.S., Bryan, K.A., Skinner, J.E., Wracher, M.D., McNulty, B.A., Hanson, R.E., and Harwood, D., 1993.  U/Pb geochronology of the Emigrant Gap composite pluton:  Implications for the

Nevadan orogeny:  in  Dunne, G. and McDougall, eds., Mesozoic Paleogeography of the Western United States-II, SEPM, p. 332-342. [3]

Girty, G.H., Girty, M.S., Hanson, R.E., Harwood, D.S., Schweickert, R.A., Yoshinobu, A.S., Bryan, K.A., and Skinner, J.E., 1995.  Timing of emplacement of the Haypress Creek and Emigrant Gap plutons:  Implications for the timing and controls of Jurassic orogenesis, northern Sierra Nevada, California.  in  Miller, D., and Busby, C. eds., Jurassic Magmatism and Tectonics of the North American Cordillera:  Boulder, Colorado, Geological Society of America Special Paper 299, p. 191-200. [3]

Yoshinobu, A.S., and Paterson, S.R., 1996, Fracture-controlled magma conduits in an obliquely convergent continental magmatic arc:  Comment:  Geology, v. 24, p. 669-670.

 

 

Publications in preparation

 

Marko, W.T., and Yoshinobu, A.S., One contact aureole, two rheologies: Emplacement of the White Horse pluton, eastern Nevada, U.S. Geological Society of America Bulletin.

Marko, W.T., and Yoshinobu, A.S., Microstructural & deformation mechanisms from a contact aureole: Estimates of stress, strain rate, & viscosity. Journal of Structural Geology.

Salisbury, M., and Yoshinobu, A.S., To be submitted. Structural evolution of portions of the Josephine peridotite.

Yoshinobu, A.S., Harper, G.D., and Kelemen, P.B. To be submitted. Construction and evolution of magma chambers in the Josephine ophiolite.

Yoshinobu, A.S., and Leiss, B. To be submitted. Hypersolidus to subsolidus transition in oceanic gabbros: evidence from neutron diffraction measurements. Tectonophysics.

Yoshinobu, A.S., Schmidt, K.L., Pignotta, G., Pauffin, O., Structural and magmatic evolution of the Tortuga ophiolite, remnants of a rifted margin in southern South America. Geological Society of America Bulletin.

 

Field Guides

 

Hanson, R.E., Girty, G.H., Schweickert, R.A., Harwood, D.S., Templeton, J., Yoshinobu, A.S., Girty, M.S., and Wracher, M.D., 1993.  Paleozoic and Mesozoic volcano-plutonic complexes in the northern Sierra Nevada terrane.  in  Lahren, M.M., Trexler, J.H., and Spinosa, C., eds., Crustal Evolution of the Great Basin and Sierra Nevada. Geological Society of America Joint Cordilleran-Rocky Mt. Guidebook, University of Nevada, Reno, p. 97-128.

Yoshinobu, A.S., 2004. Rock Consciousness & Robinson Jeffers at Point Lobos – A field guide linking salient geologic features of Point Lobos & the Santa Lucia Mountains to the poetry of Robinson Jeffers. Robinson Jeffers Association, 10th Annual Meeting, Carmel, CA. [pdf available at: http://www.gesc.ttu.edu/Fac_pages/Yoshinobu/RJ/RJ_index.html]

 

Abstracts

 

2007:

 

Anderson, H.A., Yoshinobu, A.S., Chamberlain, K., 2007, Xenolith Incorporation In Plutons: Implications To Stoping, Assimilation, And Incremental Pluton Construction, Andalshatten Pluton, Norwegian Caledonides, Geological Society of America Abstracts with Programs, v. 39, no. 6, p. 225.

Barnes, C.G., Miller, K., Snoike, A.W., Yoshinobu, A.S., Snelson, C.M., Frost, C.D. and Metcalf, R.V., 2007. Imaging accreted terranes at the Cascadia margin: The Klamath Mountains Province of CA and OR. Geological Society of America Abstracts with Programs, v. 39, no. 6, p. 612.

Martin, D.M., Anderson, T.K., Troyer, S.J., Yoshinobu, A.S., 2007, Structural evolution of the McKinney Hills laccolith-host host rock system: Geological Society of America Abstracts with Programs, v. 39, no. 7, p. 70.

Marko, W.T., Barnes, C.G., Yoshinobu, A.S., 2007, Magma chamber construction in the mid to lower crust: observations from a large S-type intrusion, southern Nordland, Norway, poster presentation at the Sixth International Hutton Symposium, Origin of Granites and Related Rocks, Stellenbosch, South Africa.

2006:

 

Anderson, H.S.,  Yoshinobu, A.S. ., Marko, W.T. A composite view of magma organization and emplacement mechanisms from the upper crust of Argentina and the middle crust of Norway. Geological Society of America, Backbone of the Americas Meeting, Mendoza, Argentina, no. 2, p. 54.

 

Marko, W., Yoshinobu, A., Barnes, C. Multiple pre-Scandian tectonothermal events preserved in the central Norwegian Caledonides. Geological Society of America Abstracts with Programs, v. 38, p. 418.

 

Martin, D.M., Anderson, T.K., Troywer, S.J., and Yoshinobu, A.S., Structural Evolution of McKinney Hills Laccolith-Host Rock System. AAPG Student Expo, Fall 2006.

 

Yoshinobu, A.S. Magmatic and structural evolution of the Tortuga ophiolite, Southern Chile. Geological Society of America, Backbone of the Americas Meeting, Mendoza, Argentina, no. 2, p. 24.

 

Yoshinobu, A.S. Robinson Jeffers: Poet and Earth Scientist. Texas Tech Center for the Southwest Conference: Natural History and the Art and Literature of Place, 17-18 February, 2006.

 

Yoshinobu, A.S., Gurrola, H., Brown, S. Lithospheric architecture of the Klamath Mountains Province, Cascadia subduction zone, California and Oregon, USA. Geological Society of America, Backbone of the Americas Meeting, Mendoza, Argentina, no. 2, p. 24.

 

2005:

 

Anderson, H.S., Yoshinobu, A.S., Barnes, C.G., 2005. Deformation, migmatization, and intrusive diatexites along the contact of the 470 Ma Vega pluton, Helgeland Nappe Complex, north-central Norway. EOS Transactions of the American Geophysical Union, 86(52), Fall Meeting.

            Undergraduate student presentation.

 

Barnes, C., Prestvik, T., Yoshinobu, A., McCulloch, L., 2005. Piecemeal emplacement (and contamination?) of a Caledonian pluton. Geological Society of America Abstracts with Programs, v.

 

Fuhrman, M., Kraft, K., Linneman, S., Srogi, L., Yoshinobu, A., Zalles, D., 2005. The Geoscience Concept Crystal: A map to facilitate development of well-aligned undergraduate geoscience curricula and assessments. Geological Society of America Abstracts with Programs, v.

 

Marko, W., Barnes, M., Viette., L., McCulloch, L., Anderson, H., Barnes, C., and Yoshinobu, A. Xenolith incorporation, distribution, and dissemination in a mid-crustal granodiorite, Vega pluton, central Norway. EOS Transactions of the American Geophysical Union, 86(52), Fall Meeting.

 

Yoshinobu, A.S., Reid, K., Barnes, C., and Allen, C., 2005. Crustal Melting in the Helgeland Nappe Complex, central Norway. EOS Transactions of the American Geophysical Union, 86(52), Fall Meeting.

 

Zimmerman, N., Yoshinobu, A.S., Lehman, T. Fracture development and laccolith growth in Big Bend National Park. Geological Society of America Abstracts with Programs, v.

 

2004:

 

Krueger, R., Zimmerman, N., Blevins, M., Martin, D., Wolak, J., Yoshinobu, A., Structural evolution of the Sing Peak pendant, central Sierra Nevada, California: Implications to pluton emplacement and regional deformation. Geological Society of America Abstracts with Programs, v. 36.

Marko, W.T. and Yoshinobu, A.S., Magma emplacement-related stress, strain rate, and viscosity estimates from a contact aureole. Geological Society of America Abstracts with Programs, v. 36.

Wolak, J., Blevins, M., Krueger, R., Martin, D., Zimmerman, N., and Yoshinobu, A.,  Field constraints on magma, host rock, and xenolith rheology during pluton emplacement. Geological Society of America Abstracts with Programs, v. 36.

Yoshinobu, A.S., Robinson Jeffers: Poet and Earth Scientist. Jeffers Studies, v. 8.

 

2003:

 

Barnes, C.G., Dumond, G., Yoshinobu, A.S., Prestvik, T., Asymmetric zoning of a middle crustal pluton in the Norwegian Caledonides: Selective assimilation of host rocks. Geological Society of America Abstracts with Programs, v. 35, n. 6.

Chatterjee, S., Guven, N., Yoshinobu, A.S., Donofrio, R., The Shiva Crater: Implications for Deccan volcanism, India-Seychelles rifting, Dinosaur extinction, and the petroleum entrapment at the KT boundary. Geological Society of America Abstracts with Programs, v. 35, n. 6.

Marko, W.T., Yoshinobu, A.S., Chipping away at magma emplacement processes: The ductile to brittle transition in the White Horse pluton contact aureole. Geological Society of America Abstracts with Programs, v. 35, n. 6.

Nordgulen, Į.,  Barnes, C.G., Pedersen, R.B., Skar, O., Yoshinobu, A.S., Mid-Ordovician to Early Silurian Granitoid Plutonism in the Scandinavian Caledonides. Geological Society of America Abstracts with Programs, v. 35, n. 6.

Yoshinobu, A.S., The Geological Consciousness of Robinson Jeffers: Mapping the influence of geology at Tor House and in verse (invited presentation): Jeffers Studies, v. 7.

Yoshinobu, A.S., Marko, W.T., Dumond, G., Wolak, J., Barnes, C.., Nordgulen, Į., Stoping happens! Geological Society of America Abstracts with Programs, v. 35, n. 6.

 

2002:

 

Barnes, C.G., Prestvik, T., Yoshinobu, A.S., Nordgulen, Į., Development of contact migmatites in the Helgeland Nappe Complex, Norwegian Caledonides: Scandinavian Winter Meeting.

Dumond, G., Yoshinobu, A.S., Barnes, C.G., Strain patterns, stoping, and subsidence in the 7kb Sausfjellet pluton, central Norway. Geological Society of America Abstracts with Programs, v. 34, n. 5, p. A31.

Marko, W. and Yoshinobu, A.S., Ductile to brittle transition in host rock rheology during pluton emplacement: Observations from the NE Great Basin, USA. Geological Society of America Abstracts with Programs, v. 34, n. 6, p. 373.

Yoshinobu, A.S., and Harper, G.D., Hypersolidus displacement patterns in the lower crust of the Josephine ophiolite. Geological Society of America Abstracts with Programs, v. 34, n. 5, p. A79.

 

2001:

 

Barnes, C.G., Yoshinobu, A.S., Nordgulen, O., Prestvik, T., Granite Formation During Interaction Of Mafic Magmas And Migmatitic Rocks, Helgeland Nappe Complex, Norwegian Caledonides, Geological Society of America Abstracts, v. 33, p. 212.

Barnes, C.G., Yoshinobu, A.S., Nordgulen, O., Prestvik, T., Migmatization associated with emplacement of mafic plutons, Helgeland Nappe Complex, Norwegian Caledonides, Geological Society of America Abstracts, v. 33, p. 6.

Barnes, C.G., Dumond, G., Chapman, K., Yoshinobu, A.S., Nordgulen, O., Prestvik, T., Karlsson, H., 2001, Mafic plutons in the Caledonian Bindal batholith, Norway, Geological Society of America Abstracts, v. 33, p. 32.

Dumond, G., Yoshinobu, A.S., Barnes, C.G., Magma chamber construction and evolution in the middle crust:  Insights from the Sausfjellet pluton, Bindal batholith, Norway, Geological Society of America Abstracts, v. 33, p. 81.

Yoshinobu, Aaron S., Barnes, Calvin G., Nordgulen, Į., Dumond, Greg, And Fanning, M., Ordovician Magmatism And Deformation In The Uppermost Allochthon, Central Norway: An Orphan Of The Taconic Orogeny? Geological Society of America Abstracts, v. 33, p. 204.

Yoshinobu, A.S, Barnes, C.G., Nordgulen, O., 2001, Exhumation And Probable Extension In The Helgeland Nappe Complex, Uppermost Allochthon, Central Norway, Geological Society Of America Abstracts, V. 33, P. 32.

 

2000:

 

Yoshinobu, A.S., Hirth, G., Leiss, B., 2000, Deformation of partially molten gabbro beneath oceanic spreading centers: olivine as a rheological "Rosetta stone".  Geological Society of Australia Abstracts, v. 59, p. 557. (Invited Speaker)

Yoshinobu, A.S., 2000, Magma emplacement in the lower crust at oceanic spreading centers. Geological Society of Australia Abstracts, v. 59, p. 556. (Invited Speaker)

Yoshinobu, A.S., Pignotta, G., Schmidt, K.L., 2000, Geometry of intrusion and magma migration in the Tortuga ophiolite, Chilean Tierra del Fuego. Geological Society of America Abstracts with Programs, v. 32, p, 236.

 

1999:

 

Yoshinobu, A.S., and Hirth, G., 1999, Experimental and microstructural constraints on the rheology of partially molten gabbro beneath oceanic spreading centers. EOS Transactions, American Geophysical Union, v. 80, p. 974.

Yoshinobu, A.S., and Paterson, S.R., Implications of differing rates and durations of magmatic and tectonic processes for construction of cordilleran batholiths: Geological Society of America Abstracts with Programs,  (Invited Speaker), v. 31, p. 111.

Yoshinobu, A.S., and Harper, G.D.  Strain partitioning in the lower crust of oceanic spreading centers:  Insights from the Josephine ophiolite. NSF-Ridge Cyprus Field School Abstracts.

 

1998:

 

Hirth, G., Ildefonse, B., John, B., Trimby, P., Yoshinobu, A.S., and Leg 176 Scientific Party, Deformation of the lower oceanic crust at a slow spreading ridge:  Results from ODP Leg 176, Site 735B, Southwest Indian Ridge. EOS Transactions, American Geophysical Union.

Ildefonse, B., Hirth, G., John, B., Trimby, P., Yoshinobu, A.S., and Leg 176 Scientific Party, Structural evolution of the lower crust at slow-spreading ridge:  preliminary results from ODP Leg 176, Site 735B, Southwest Indian Ridge. European Geophysical Society, Annales Geophysicae 16, 293

Yoshinobu, A.S., and Harper, G.D., Complex intrusive history in the cumulate rocks of the Josephine Ophiolite:  Implications for slow-spreading center magma chambers: NSF-RIDGE Oman Winter School.

Yoshinobu, A.S., and Harper, G.D., Construction of the lower crust in the Josephine ophiolite:  Implications for the size and geometry of magma chambers at slow-spreading ridges. EOS Transactions, American Geophysical Union, v. 79, p. S368.

Yoshinobu, A.S., Hirth, G., Ildefonse, B., and Leg 176 Scientific Party, Foliation development across the magmatic to crystal-plastic transition in oceanic gabbros:  Preliminary results from ODP Leg 176, Hole 735B, Southwest Indian Ridge. EOS Transactions, American Geophysical Union, v. 79, p. S376.

 

1997:

 

Yoshinobu, A.S., Okaya, D.A., and Paterson, S.R., Thermal viability of fault-controlled magma emplacement models: Geological Association of Canada Annual Meeting, Abs. with Progs. v. 22, p. A161.

 

1996:

 

Paterson, S.R., Fowler, T.K., Yoshinobu, A.S., Deciphering magmatic structural patterns:  Examples from the Bateman Legacy: Geological Society of America Abstracts with Programs. v. 29, p.

 

1995:

 

Fowler, T.K., Paterson, S.R., Crossland, A., and Yoshinobu, A.S.,  Pluton emplacement mechanisms:  A view from the roof. U.S. Geological Survey Circular 1129, p. 57.

Fowler, T.K., Yoshinobu, A.S., Paterson, S.R., Llambias, E., Sato, A.M., and Tickjy, H., Emplacement of the Chita pluton by magmatic stoping, NW Argentina: Geological Society of America Abstracts with Programs. v. 28, p. 125.

Paterson, S.R., Schmidt, K., Yoshinobu, A.S., and Fowler, T.K., Evaluating the spatial relationship between plutons and faults in arcs: RIDGE Theoretical Institute, Faulting and Magmatism at Mid-Ocean Ridges, p. 44.

Yoshinobu, A.S., and Paterson, S.R., Multiple space-making mechanisms and vertical material transfer in the Sierra Nevada batholith: Geological Society of America Abstracts with Programs., v. 27, p. 85.

Yoshinobu, A.S., Fowler, T.K., Okaya, D.A., and Paterson, S.R., Testing fault-controlled magma emplacement mechanisms:  U.S. Geological Survey Circular 1129, p. 166. [2]

 

Pre-1995:

 

Girty, G.H., Yoshinobu, A.S., Girty, M.S., Bryan, K.A., Skinner, J.E., Wracher, M.D., McNulty, B.A., Hanson, R.E., and Harwood, D., 1993.  U/Pb geochronology of the Emigrant Gap composite pluton:  Implications for the Nevadan orogeny:  American Association of Petroleum Geologists Bulletin [abs], v. 77, p. 698-699.

Lewis, J.G., Ridge, D.L., Al-riyami, R., Ward, K.L., Yoshinobu, A.S., Girty, G.H., 1994.  Multiple sources determined by geochemical aspects, lower Paleozoic Shoo Fly Complex (SFC), Sierra Nevada, CA: Geological Society of America Abstracts with Programs. v. 26, p. 66.

Skinner, J.E., Yoshinobu, A.S.,  Mengano, R., Pubentz, M., Shar, T., Girty, G.H., Girty, M.S., 1994.  Geochemistry, geochronology, and petrologic evolution of the Emigrant Gap Composite Pluton (EGCP): Geological Society of America Abstracts with Programs. v. 26, p. 92.

Yoshinobu, A.S., Skinner, J.E., Girty, G.H., 1994.  Ductile to brittle wall rock response during pluton emplacement, Emigrant Gap composite pluton (EGCP), northern Sierra Nevada, CA: Geological Society of America Abstracts with Programs. v. 26, p. 106.

Yoshinobu, A.S. and Girty , G.H., 1994.  Mass transfer and volume loss during contact metamorphism:  A possible “space-making” mechanism during pluton emplacement?: Geological Society of America Abstracts with Programs. v. 26, p. 106.

Yoshinobu, A.S., Bryan, K.A., Seeliger, T.E., Skinner, J.E., Girty, MS., and Girty, G.H., 1992.  Evidence for Middle Jurassic deformation and emplacement of the Emigrant Gap composite pluton, northern Sierra Nevada, California: Geological Society of America Abstracts with Programs. v. 24, p. 91.

Yoshinobu, A.S., Hanson, A.D., Girty, G.H., Knaack, C., and Johnson, D., 1993.  Provenance discrimination of Paleozoic mudstones within a contact metamorphic aureole determined by REE, Th, and Sc analyses, Sierra Nevada, California: Geological Society of America Abstracts with Programs. v. 25. p. 78.

 

Research Awards and Grants, 1997-2006 that have funded research at TTU

 

2007: Big-12 Research Fellowship. $3000 award to fund research at the Harry Ransom Humanities Research Center, U.T. Austin. This focuses on archival research of the Robinson Jeffers collection at the HRHRC that includes photographs and manuscripts from the 1920-1930 era. My research involves elucidating the chronology of construction of Jeffers’ home Tor House and Hawk Tower, and his thoughts on geology and Earth evolution.

2005-2007: National Science Foundation, “Collaborative Research: Magma-host Rock Interactions Processes of Assimilation in the Mid-Crustal Hortavaer Intrusive Complex, Central Norway”, $229,000 over three years, third year contingent on progress, with Cal Barnes (TTU) and Carol Frost (University of Wyoming) (submitted 1 June 2004; Fully-funded beginning 1 January 2005). Research is nominally divided into ‘thirds’ with each Co-PI fully collaborating on field and lab work.

2005: TTU TLTC: GEOWALL: Accessing and evaluating the spatial and visualization skills in Geoscience students. $9,600, PI, funded 100% to PI.

2005: Halliburton Corporation: GEOWALL: 3-D imaging of subsurface geometry in petroleum systems, $20,000, PI, funded 100% to PI.

2003: Texas Tech University, Faculty Research Enhancement Grant, “Plutons & Plate Motions”, $4,680, PI.

2001-2004: National Science Foundation, “Contact Aureole Rheology”, $114,000, PI.

2000: Texas Tech University, Faculty Research Enhancement Grant, ‘3-D Mapping of a Rifted Margin’, $3,500, PI.

1998-2000: National Science Foundation: “Investigating the magmatic and tectonic evolution of oceanic gabbros: Insights from the Tortuga Ophiolite”, Yoshinobu conceived and wrote proposal, conducted all research, $204,000, PI Dr. Scott R. Paterson (USC). Funds from this proposal partially supported TTU M.S. student, Mike Salisbury.

1998-1999: JOI-USSSP: “Foliation development across the hypersolidus to subsolidus transition: Implications to the rheology of the lower oceanic crust”, $23,000, PI.

1997-1998: National Geographic Society Grant for Research and Exploration:  The Rocas Verdes ophiolites:  Mapping the formation of oceanic crust, Yoshinobu conceived and wrote proposal, conducted all research, $37,000, PI Dr. Scott R. Paterson (USC).

 

Other Significant Research Proposals Submitted 1998-2007

 

2008-2010: “Collaborative Research: Evaluating Magma Emplacement and Xenolith Incorporation in Middle Crustal Plutons”, $325,563, submitted to NSF with Cal Barnes (TTU) and Carol Frost (Univ. Wyo.). Rejected.

2008-2010: Collaborative Research: Processes of Terrane Accretion and Crustal Modification in the Klamath Mountains Province of Cascadia”, $421,787, submitted to NSF Earthscope with Cal Barnes (TTU), Art Snoke (Univ. Wyo.) Cathy Snelson (NMT), Kate Miller (UTEP), Rod Metcalf (UNLV), Terry Spell (UNLV). Rejected.

2008: Halliburton Corporation: Rejected.

 

 

2006: Collaborative Research: Assimilation and magma chambger assembly from thin section to batholith scale. Co-PI with Cal Barnes, TTU, and Carol Frost, Univ. of Wyoming, National Science Foundation, $275,160 (rejected).

2005: Collaborative Research: Processes of terrane accretion and modification: The Klamath Mountains of Cascadia. With Cal Barnes and Harold Gurrola (TTU), National Science Foundation, $703,006. (rejected).

2003: “Magma emplacement, assimilation, and the fate of stoped blocks”, PI, submitted 1 December 2003 to NSF, amount requested $284,183 (rejected).

2003: “Collaborative Research: Magma-host rock interaction. Processes of assimilation in a zone of magma transfer: Hortavar intrusive complex, north central Norway”, Co-PI, submitted 1 June 2003 to NSF, amount requested $223,390 (rejected).

2002: “Migmatite-pluton connections: testing models of the generation, segregation, and transport of magmas in collisional orogens”, Co-PI, submitted 1 June 2002 to NSF, amount requested $298,960 (rejected).

2000: “Collaborative Research: Contact Aureole Rheology”, PI, submitted to NSF, amount requested $106,150 (rejected).

 

Professional Activities

 

2006: Elected to the Board of Directors, Robinson Jeffers Association, February 2006.

2005: Participant ‘Understanding what our geoscience students are learning: Observing and assessing’ workshop run by the National Association of Geoscience Teachers at Carleton College, MN, 12-14 May.

While this workshop benefited my teaching, it also provided necessary background into means of assessing learning and provided tools to utilize in researching how students learn. My research emphasis in learning focuses on spatial reasoning skills and visualization.

2005: Co-Convener, Geological Society of America Symposium, Plutons and their host rocks in the Sierra Nevada batholith: A forum and discussion on magma emplacement, magmatic differentiation, and pluton solidification. San Jose, CA, 29 April – 2 May.

2005: Co-Leader, Geological Society of America Field Forum, “Rethinking the assembly and evolution of plutons: Field tests and perspectives, 7-14 October, Yosemite National Park.

      These latter two items are outcomes of my NSF-sponsored research on the tectonics of magmatic systems.

2005: Nominated to the Board of Directors, Robinson Jeffers Association, Dec. 2005.

      Although the results of my nomination will not be known until the Board meeting in February 2006, this recognition is the result of my continued collaboration with Jeffers Scholars and the Tor House Foundation.

 

2004: Co-Convener, Cordilleran Magmatism from the Forearc to the Hinterland, Geological Society of America, Cordilleran-Rocky Mt. Meeting, May 3-5, 2004.

1999: Participant in the RIDGE/NSF Cyprus Field School on Ophiolites and

Oceanic Crust.

1998: Participant Geological Society of America Penrose Conference on Ophiolites and Oceanic Crust.

1998: Participant in the RIDGE/NSF Oman Winter School, February, Muscat, Oman.

1994: Geological Society of America Short Course:  GPS geodesy and active tectonics.

1991: Geological Society of America Short Course:  Deformation and kinematics of high strain zones.

Reviewer of National Science Foundation proposals, Journal of Structural Geology, Journal of Petrology, Geological Society of America publications (GSA Bulletin, GSA Special Papers), Journal of Metamorphic Geology, Tectonics.

 

Supervised Students

Ph.D. Committees – Chair

Wayne T. Marko – Beginning Fall of 2004.

 

Ph.D. Committee Member

Yujia Li. Carbonate assimilation in magmas.

 

M.S. Committees - Chair

Greg Dumond, M.S., 2002, “Magma chamber construction in the middle crust: Insights from the Sausfjellet pluton, Bindal Batholith”, (Co-advised with Cal Barnes).

Now in the PhD program at University of Massaschusettes working with Mike Williams.

Mike Salisbury, M.S. 2003, “High-temperature deformation in the Josephine peridotite”. Salisbury has been invited to submit his M.S. work to a Geological Society of America Special Paper on the Klamath Mountains. Now working in environmental geology, Los Angeles, CA.

Wayne Marko, M.S. 2004, “Contact Aureole Rheology”.

Marko has presented his results from his M.S. research at the National Geological Society of America meeting during 2002 and 2003 (see Publications) and will begin the Ph.D. program in Geosciences at TTU in the Fall of 2004.

Jeannette Wolak, M.S. 2004, Field constraints on the removal and incorporation of host rock xenoliths in the Jackass Lakes pluton, central Sierra Nevada, CA. M.S., Texas Tech University, 75 p. Wolak presented her initial findings at the 2004 Cordilleran/Rocky Mountain GSA Meeting in Boise, ID. Wolak was employed at Devon Oil and Gas before returning to Montana State University for her PhD.

Ryan Krueger, M.S. 2005, Structural evolution of the Sing Peak pendant: Implications for magma chamber construction and mid-Cretaceous deformation in the central Sierra Nevada batholith, M.S., Texas Tech University, 94 p. Employed by ExxonMobil.

Nathan Zimmerman, M.S. 2005, “Evaluating host rock deformation mechanisms in folds developed above laccoliths, Big Bend National Park, Texas”.

            Zimmerman was a recipient of a Geological Society of America Research Grant to partially fund his research. Employed at Dominion Oil and Gas. Returned to graduate school in 2006 to obtain a MS in Petroleum Engineering.

David M. Martin, M.S. 2007. “Structural Evolution of the McKinney Hills Laccolith, Big Bend National Park, Texas”. Martin is employed by Mewbourne Oil and Gas.

Tim Anderson, M.S. expected May 2008. “Influence of tectonics and climate on the topography of the Klamath Mountains Province.

Heather S. Anderon, M.S. expected December 2008. “Evaluating Stoping and Assimilation in the Andalshatten Pluton, Norway.

 

M.S. Committee Member

Kyle Chapman, M.S. candidate, member since Spring 2000, “Petrologic evolution of the Hilstadtfjellet pluton, Bindal batholith, central Norway”, expected graduation, Dec. 2003.

Indrani Chattopadhyay, M.S. 2003, “Crustal xenoliths from Patrillo Maar”.

Jason Lewis, M.S. 2004, “Imaging the mantle beneath Southern California using receiver functions”.

Kristin Reid, M.S. M.S. 2004, “Petrologic evolution of the Tosen Dikes”.

James Green, M.S. candidate, “Sedimentary petrography of the Ogallala Formation, Southern High Plains, Texas and New Mexico”.

Lindy McCulloch, M.S. expected Dec. 2007, “ Petrology and structure of the Hortavar pluton, central Norway”.

Shanna Brown, M.S. expected May 2007, “Receiver functions beneath the Klamath Mountains Province.”

 

Undergraduate Research Advisor

Jackie Arellano, B.S. 2002. Rock/thin section preparation and analysis

Jason Foster, B.S. 2002, McNair Scholar co-advisor, ‘Geophysical investigations of a South Plains Archeological Site’.

Brian Cornwell, B.S. expected graduation December 2004, ‘Strain analysis of deformed conglomerates from the Helgeland Nappe Complex, central Norway’.

David Martin, B.S. 2004, “Magmatic fabrics & stoped blocks in the Jackass Lakes pluton, central Sierra Nevada, CA’.

Mike Blevins, B.S. 2004, ‘Structural analysis of folded dikes in the Jackass Lakes pluton, central Sierra Nevada, CA’.

Sean Troyer, B.S. 2006, ‘Structural analysis of a portion of the McKinney Hills laccolith’.

Tim Anderson, B.S. August 2006, ‘Fault kinematic analysis along Tornillo creek’.

Jeff Hoemberg, B.S. December 2006, ‘Evaluation of restored cross sections at Dog Canyon, Big Bend National Park.

Heather Anderson, B.S. December 2006, ‘Petrologic and structural evolution of a portion of the contact aureole around the Vega pluton’. Co-advised Anderson in the field and lab.

Kyle Metz, B.S. May 2007

Mike Muncy, B.S. Dec. 2007

Jeffrey Wood, B.S. May 2008.

 

Teaching Awards

 

2003: South Central Federation of Mineral Societies, Inc. Honorary Scholarship Award Winner for the American Federation of Mineral Societies Scholarship Foundation. Includes two $4000 grants to be given to exceptional gradate students.

2002: Outstanding Non-Petroleum Engineering Professor of the Year Award, Society of Petroleum Engineers.

 


Teaching Experience

 

1999-present: Texas Tech University:

Physical Geology (GEOL 1303)

Structural Geology (GEOL 3302)

Tectonics (GEOL 5362),

Advanced Structural Geology (GEOL 4361/5361),

Tectonic Evolution of Western North America (GEOL 5305),

Advances in Historical Geology (GEOL 5340),

Graduate Seminars

1998: Guest Lecturer, University of Southern California, Advanced Structural Geology (graduate class):  Lectured on dislocation theory, deformation mechanisms, and olivine crystallography and rheology.

1996: U.S.C. Curriculum Fellowship to design new curriculum for an introductory geophysics class on earthquakes. 

1996: Guest Lecturer, University of Southern California, Earthquakes 240 (general education course):  Lectured on oceanic spreading centers and divergent plate boundaries to general education class.

1995: Outstanding Graduate Teaching Assistant, Department of Earth Science, University of Southern California.

1994-1997: University of Southern California:  Earthquakes -- An introduction to geophysics laboratory (13 classes), Structural Geology (1 class).

1994-1997: 4.55 average out of 5.0 teaching evaluation scores at the University of Southern California.

1993-1994: San Diego State University:  Introductory Geology Laboratory (2 classes), Introductory Field Mapping (1 class).

 

Courses taught since 1999

 

Physical Geology (GEOL 1303)

• Developed class field trip for 200-student course;

• Developed in-class discussion/problem solving groups in 200-seat class;

• Involved thirteen non-majors in a 3-day field trip to New Mexico.

 

Evaluations (out of 5):   Fall 2002: 4.3 (first time taught at TTU)

                                          Fall 2003: 4.3

 

Structural Geology (GEOL 3402)

During my first year I increased this to a 4 hour course that includes two field trips (Cap Rock Canyon, TX, Manzano Mountains, NM). This course is taught to both Geoscience majors and Petroleum Engineering majors and enrollments have ranged from 22 to 55.

 

Evaluations (average of response 2, per Annual Reports, “overall effectiveness of instructor”:

Fall 1999: 2.92,

Fall 2000: 4.33,

Fall 2001 (using new form): 4.19,

Fall 2002: 4.6 (Geology majors), 3.96 (Petroleum Engineering majors),

Fall 2003: 4.56 (Geology majors), 4.36 (Petroleum Engineering majors)

 

Tectonics (GEOL 5362)

      This is a new course that I developed and have taught during spring 2000 and Fall 2001. This course focuses on the history of the development of the Plate Tectonic Paradigm and the geodynamic and kinematic constrains on our understanding of plate boundaries and intraplate deformation. This class has one field trip.

 

Evaluations:

Spring 2000: 4.5.

Fall 2001: not compiled but on file (~4.0).

Spring 2004: in progress.

 

Advanced Structural Geology (GEOL 5361)

      This is a new course that I developed and first taught during Spring of 2001. This course is topical and is designed around various field projects and samples that I have acquired from the Western US as well as my ongoing research in Norway and southern Chile. The course is a combination of lecture, lab, and field work when appropriate.

 

      Evaluations: Spring 2001: evaluations are not in file; For insights into the class, graduate students Dumond, Salisbury, Rothengass, and undergraduate Cornwell were enrolled and may be contacted for review.

 

Tectonic Evolution of Western North America (GEOL 5305)

      This is a new course that I developed and have taught during Fall 2000 and Spring 2002. This is a survey course of the plate tectonic and geologic evolution of the western US. During the Spring of 2002 this course has focused on the field aspects of three major “Cordilleran” tectonic phenomena: Proterozoic continental collision and crustal accretion, Mesozoic contractional deformation and sedimentation, and Cenozoic rifting and volcanism. The course has three field trips to west Texas and central/southern New Mexico.

 

Evaluations:

Fall 2000: 4.6;

Spring 2002: not available.

 

In addition to the above courses, I have also taught/lead graduate seminars including Geodynamics (Fall 2001 co-lead with Dr. Barnes) and GEOL 5101 (Spring 2001, 2002, 2003, 2004)

 


Service at Texas Tech University

 

2007-2008: Mineralogy Search Committee

2005-present: Undergraduate Committee, Graduate Committee, Field Camp Committee.

2003-present: Multi-disciplinary Science Graduate Degree Committee member

2003: Petroleum Geology Faculty Search Committee

2002-2004: Department Committees:

Outreach Committee, Chair

            Graduate Committee

            Undergraduate Committee

            Executive Committee

2001-2004: Physical Geology Lab Coordinator.

            Involves organizational aspects of TA positions, overseeing lab curriculum, periodic in-class TA evaluations, etc.

2001-present: Advisor to Sigma Gamma Epsilon, Geoscience Honor Society.

2001-present: Advisor to TTU Climbing Club.

2004-present: Advisor to the Geoscience Society

2000-present: Department webmaster.

            Involves maintaining and creating new Departmental www sites, functionality and influence.

2000-present: Organizer of Department Colloquia

2000: Committee on Graduate Recruitment, Department of Geosciences.

2000-2002: Committee to develop strategic plan for Department of Geosciences.

2000: Search Committee for Assistant Professor in GIS

1999: Ad hoc committee on TTU Field Camp.

 

Thesis Committee Members

 

Ph.D, University of Southern California:  Drs. Scott R. Paterson (Ph.D. advisor), J. Lawford Anderson, Gregory A. Davis, Jean Morrison, William Weber.

M.S., San Diego State University:  Drs. Gary H. Girty, Michael Walawender,

Ned Greenfield.

 

Research Collaborators

 

Drs. Cal Barnes (TTU)

Kevin Chamberlain (U. Wyo.)

Henry Dick (Woods Hole Oceanographic Institute)

T. Kenneth Fowler, Jr. (Exxon Prod. Research)

Carol Frost (U. Wyo.)

Gregory Harper (SUNY Albany)

David Harwood (USGS)

Greg Hirth (Woods Hole Oceanographic Institute)

Pete Holterhoff (TTU)

Benoit Ildefonse (U. Montpellier, France)

Barbara John (U. Wyoming)

Peter Kelemen (Woods Hole Oceanographic Institute)

Bernd Leiss, (Univ. of Gottingen)

Eduardo Llambias (U. La Plata, Argentina)

Įystein Nordgulen (Norwegian Geological Survey)

David Okaya (USC)

Scott R. Paterson (USC, PhD Advisor)

Tore Prestvik (NTSU)

Sarah Roeske (UC Davis)

Keegan Schmidt (Lewis and Clark State College)

 

Invited Talks

 

1998: ‘Magma emplacement into the crust: Constraints from thermal models and field  studies’, Woods Hole Oceanographic Institute

1999: ‘Magma emplacement into the crust: Constraints from oceanic and arc environments’, Rice University

1999: ‘ Implications of differing rates and durations of magmatic and tectonic processes for construction of cordilleran batholiths’, Special Symposium on Cordilleran Plutonism in the Americas, Geological Society of America Cordilleran Section Meeting.

1999: ‘Magma chamber construction and destruction at oceanic spreading centers’, U.T. El Paso.

1999: ‘Magma chamber construction and destruction at oceanic spreading centers’, New Mexico State University.

2000: “The Ron Vernon Symposium”, Geological Society of Australia, (two invited papers)

2002: ‘Tectonic evolution of the Tortuga ophiolite, southern Chile’, University of New Orleans.

2002: Geological Society of America, Paleogeodesy and displacement in arcs – a symposium in honor of Dr. O. T. Tobisch

2003: Robinson Jeffers Association Annual Conference, Flagstaff, AZ; invited presentation on the influence of geology in the construction of Tor House and in Jeffers’ verse.

2003: Tor House Foundation: invited presentation on the geologic influences in the construction of Tor House, Carmel, CA.

2004: Robinson Jeffers Association Annual Conference, Carmel, CA; invited presentation on the role of geological influences and early development of continental drift theory to Jeffers’ verse.

2004: ‘Cookie cutters, balloons, and candles: New and old views of magma emplacement in the crust’, Texas Christian University.

2006: 2-D or not 2-D: 3-D is the Answer! Accessing and evaluating student spatial reasoning skills using Geowall. Scholarhips of Teaching and Learning Spotlight Talk, Teaching, Learning and Technology Center, Texas Tech University, 18 April, 2006.

2006: Robinson Jeffers: Poet and Earth Scientist. Texas Tech Center for the Southwest, Natural History and the Art and Literature of Place Conference, 17 & 18 February, 2006.

2007: Stoping Happens! Louisiana State University, 26 January, 2007.


Research Experience

 

2007-present: Field structural analysis of the Fresnal fault zone, Sacramento Mountains, New Mexico.

2004-2007: Field and structural analysis of laccoliths and Cenozoic deformation in the Big Bend region.

2001-present: Field and microstructural analysis of contact aureole rocks using quartz and calcite piezometry and experimentally derived flow laws to evaluate rheology of contact aureoles during magma emplacement. NSF Funded through 2004.

2000-present: Deformation and magmatism in the central Norwegian Caledonides.  In collaboration with Dr. Cal Barnes, Texas Tech University, Dr. Įystein Nordgulen, Norwegian Geological Survey. Funded by NSF through 2007.

1998-present: Use of olivine microstructures in rocks deformed at hypersolidus conditions from ophiolites and modern oceanic crust to constrain the rheological parameters of partially molten gabbro, with implications to the viscosity of the lower crust beneath fast-spreading oceanic ridges.

1997-present: Deformation, melt migration, and the rheology of slow-spreading lower oceanic crust:  ODP Leg 176, return to Hole 735B, Southwest Indian Ridge.

1997: Shipboard Scientist, Structural Geologist, JOIDES-Resolution, on ODP Leg 176, return to Hole 735B, Southwest Indian Ridge.

1996-present: Nature of deformation in “cumulate” rocks during oceanic spreading:  Examples from the Rocas Verdes ophiolites, southern Chile and Josephine ophiolite, California, with implications to the partitioning of deformation at slow-spreading oceanic ridges.

1996-1998: Two-dimensional, finite-difference thermal modeling of fault-controlled magma emplacement and magma solidification in arc settings.

1994-1995: Pluton roofs: Testing pluton emplacement mechanisms around shallow-crustal granitoids in Northwestern Argentina.

1993-1994: Nature and significance of contact metamorphic volume loss and mass transfer during pluton emplacement. 

1991-1995: Timing of pluton emplacement and regional deformation in the northern Sierra:  Implications to Middle Jurassic orogenesis.

1991-1994: Geochemical analysis of Lower Paleozoic chert-argillite sequences to determine depositional environment and provenance of clastic material and the behavior of the REE during deformation and contact metamorphism.

1992-1993: Kinematic and microstructural study of the Cuyamaca-Laguna Mountains shear zone, Peninsular Ranges, California.  

1990-1991: Field mapping in the Sierra Mejor metamorphic core complex, NE Baja California, Mexico. 

1989-1990: Field mapping of lower and upper plate rocks of the Pinyon Mountains extensional detachment fault, SE California.

 

Pre-1998 Research Awards and Grants

 

1998: Participant in the RIDGE/NSF Oman Winter School, February, Muscat, Oman.

1997: Outstanding Student Paper, Department of Earth Sciences, USC: “Modeling the thermal evolution of fault-controlled magma emplacement models:  Implications for the solidification of granite plutons” Journal of Structural Geology.

1997: AMOCO Fellowship: Testing oceanic crustal accretion models at the Josephine Ophiolite, northern California.

1996-1998: Keck Fellowship, University of Southern California.

1996-1997: Geological Society of America Research Grant. “Structure and magmatic processes in the Sarmiento ophiolite, southern Chile: A physical proxy for modern back arc basin spreading centers?”.

1995-1996: Outstanding Graduate Research Proposal, Geological Society of America. “Mechanical links during pluton emplacement: When, why, and how strong?”.

1995: USC Graduate Student Research Grant. “Diachronous formation of oceanic crust in a paleo back-arc basin:  The Rocas Verdes marginal basin, southern Chile.”

1995: USC Graduate Student Research Grant. “What process forms magmatic structures in batholiths?”.

1994-1995: Stones Fellowship, University of Southern California.

1993: Chevron Research Scholarship. “Mass transfer and volume strain during contact metamorphism”.

1993: Amoco Research Scholarship.

1992: Outstanding Undergraduate Thesis, Department of Geological Sciences,  San Diego State University, 1992. 

1992: N.A.G.T./U.S.G.S. Field Program Nominee.