Current Projects

Non-steady-state continental margin magmatism:  Large scale partial melting events exert a primary control on the dynamics of orogenic belts and are a fundamental process of continental growth. The Late Cretaceous La Posta TTG suite in the eastern Peninsular Ranges batholith (PRB) of southern and Baja California is an outstanding world class example. La Posta plutons account for ~50% of the total surface area of the 800 km PRB, and were emplaced within a surprisingly brief time interval (~100 to 95 Ma; e.g. Kimbrough et al., 2001). This catastrophic melting/mass transfer event marked the culmination of arc magmatism at the margin of southwestern North America  This intense magmatic flareup was preceded by tectonic shortening and inferred crustal thickening under conditions that may be analogous to the Neogene Cordillera Blanca batholith of Peru.  An array of fundamental questions revolve around La Posta-type magmatism including source region characteristics, triggering mechanisms of melting, as well as the timescale and processes by which magmas are emplaced into the middle and upper crust. Kimbrough together with colleagues and students are actively involved in field and laboratory research efforts at addressing these problems. Work in New Zealand is centered around the TTG-affinity Separation Pt batholith and Western Fiordland Orthogneiss.

Gulf of California-San Andreas plate boundary: The goal of this project, supported by the Petroleum Research Fund, is to advance understanding of the Gulf of California-San Andreas plate boundary system via a provenance study of the Magdelena deep-sea fan located off western Baja California Sur which has no apparent sediment source.  Specifically, we hope to establish a piercing point to constrain the magnitude of "proto-San Andreas" transform motion accommodated in the Pacific continental margin of Baja California between ~13 to 6 million years ago.  A refined understanding of proto-San Andreas borderland offsets bears directly on a series of critical dynamical questions related to continental rifting including plate coupling mechanisms across fossil subduction zones, the possibility of major previously unrecognized pre-6 Ma oblique rifting inside the Gulf of California, and possible mechanisms that could explain the Pacific-North American plate boundary jump into the Gulf of California and consequent transfer of Baja California to the Pacific Plate. This is a collaborative effort with Mexican scientists and students at CICESE and UABC Sur that affords meaningful international experiences for SDSU students involved in the project. 

Sediment provenance analysis: This work, funded by the National Science Foundation,  focuses on the fundamental question of how the exhumation history of orogenic systems is preserved in the ancient stratigraphic record, and with what fidelity this history can be extracted from derivative sedimentary successions.  Specifically, we are testing the utility of integrating multiple isotopic techniques (detrital zircon U-Pb geochronology, whole rock Nd analyses, and detrital K-feldspar & muscovite ⁴⁰Ar/³⁹Ar thermochronology) with traditional sedimentologic analyses to assess the dynamic linkage between orogenesis, basin subsidence and resultant sediment dispersal and accumulation in continental margin arc systems.  The combination of  techniques focused on here is particularly sensitive to analysis of relatively deeply exhumed continental margin orogens that are often characterized by pulsed, episodic and/or multistage denudation histories.  The numerical model of Lovera et al. (1999), see below, permits analysis of the interaction of transient magmatic heating and exhumation-related slow cooling on exhumation patterns and is ideally suited for interpretation of thermochronologic data from these settings. 

Science Education: Development of spatial and temporal reasoning skills is fundamental to understanding of processes and concepts in the Earth Sciences.  Although spatial-temporal reasoning is perhaps the most basic form of human intelligence, surprisingly little effort has gone into construction of a systematic, developmentally appropriate elementary and middle school curriculum designed to foster higher cognitive skills in this area.  Work here, supported by the National Science Foundation,  is aimed at development of K-8 curriculum that promotes spatial-temporal reasoning skills within the framework of already established Earth Sciences content standards.  One aspect of this effort is development of an Earth Sciences/Astronomy K-8 lesson plan portfolio presented as a series of longitudinal exercises. The curriculum is designed to facilitate teaching topics related to spatial temporal cognitive skills via astronomical observations of the Sun-Earth-Moon system as well as planets and stars. Astronomy is a good vehicle for developing these skills because there are so many “real time” observations that can be made and analyzed.  Students are engaged in conceptual thinking and get experience making observation, modeling, conducting experiments, graphing, and data analysis.

Peninsular Ranges batholith teaching suite: Geologic education is hampered by spatial and temporal inaccessibility; we see only a tiny fraction of rocks that compose the Earth, at a moment "frozen" in time that represents the culmination of thousands or millions of years of Earth processes.  Laboratory exercises that utilize "rock suites" particular to specific modern geologic environments are an important teaching approach that helps to overcome the fragmentary perspective available to us.  The goal of this project is to establish a reference suite of rocks and teaching materials for the Peninsular Ranges batholith; a classic circum-Pacific continental margin batholith segment.  The suite is based on a transect across the northern part of the batholith in the San Diego region where the structure, petrology, and geophysical characteristics of the batholith are particularly well-documented. The PRB suite is being designed as a flexible vehicle that can be used in undergraduate or graduate geology courses, as well as in local K-12 programs for "place-based" earth science education.  The suite consists of 24 rocks including prebatholithic framework rocks, supracrustal volcanic sequences, and major plutonic rock types that capture the evolution and petrologic diversity of the batholith. A virtual field tour of the batholith will be keyed to this suite.

Selected recent publications:

Shervais, J.W., Murchey, B.L., Kimbrough, D.L., Renne, P.R., and Hanan, B., 2005, Radioisotopic and biostratigraphic age relations in the Coast Range Ophiolite, northern California: Implications for the tectonic evolution of the Western Cordillera: Geological Society of America Bulletin, v. 117, doi: 10.1130/B25443.1.

Kimbrough, D.L.and Moore, T.E., 2003, Ophiolite and volcanic arc assemblages on the Vizcaino Peninsula and Cedros Island, Baja California Sur, Mexico: Mesozoic forearc lithosphere of the Cordilleran magmatic arc, in Johnson, S.E., Paterson, S.R., Fletcher, J., Girty, G.H., Kimbrough, D.L., and Martin-Barajas, A., eds., Tectonic evolution of northwestern Mexico and the southwestern USA: A Volume in Honor of R. Gordon Gastil, Geological Society of America Special Paper 374.

Bohnel, H., Delgado-Argote, L.A., and Kimbrough, D.L., 2002, Discordant paleomagnetic data for middle-Cretaceous intrusive rocks from northern Baja California: Latitude distplacement, tilt, or vertical axis rotation?: Tectonics, v. 21, doi:10:10.1029/2001TC001298.

Kimbrough, D.L., Smith, D.P., Mahoney, J.B., Moore, T.E., Gastil, R.G., Ortega Rivera, M.A., and Fanning, C.M., 2001, Forearc basin sedimentary response to rapid Late Cretaceous batholith emplacement in the Peninsular Ranges of southern and Baja California: Geology, v. 29, p.  491–494.

Lovera, O.M., Grove, M., Kimbrough, D.L., Abbott, P.L., 1999, Magnitude and time scales in the exhumation of arc crust: an approach based upon analysis of detrital closure age distributions: Journal of Geophysical Research, v. 104, no. B12, p. 29,419-29,438.

Courses Taught

• Geol 221 Mineralogy

• Geol 501 Geochronology

• Geol 640 Geotectonics

• Geol 660 Isotope Geology

Kimbrough Websites

• Show Me Geology

• Undergraduate Program Advising Page

Publications

Submitted:

Tulloch, A.J., Kimbrough, D.L., Faure, K., Allibone, A.H., Ramezani, J., [submitted Feb 04], Paleozoic plutonism in western New Zealand, and relationship to Gondwana-margin magmatism in eastern Australia and Antarctica: Geological Society of America Bulletin.

Published:

Shervais, J.W., Muchey, B.L, Kimbrough, D.L., Renne, P.R., Hanan, B., 2005, Radioisotopic and biostratigraphic age relations in the Coast Range Ophiolite, northern California: Implications for the tectonic evolution of the Western Cordillera: Geological Society of America Bulletin, v. 117, doi: 10.1130/B25443.1.

Shervais, J.W., Kimbrough, D.L., Renne, P., Hanan, B.B., Muchey, B., Snow, C.A., Zoglman-Schuman, M.M., Beaman, J., 2004, Multi-stage origin of the Coast Range ophiolite, California and Oregon: Implications for the life cycle of supra-subduction zone ophiolites:  International Geology Review, v. 46.

Kimbrough, D.L., and Moore, T.E., 2003, Ophiolite and volcanic arc assemblages on the Vizcaino Peninsula and Cedros Island, Baja California Sur, Mexico: Mesozoic forearc lithosphere of the Cordilleran magmatic arc, in Johnson, S.E., Paterson, S.R., Fletcher, J., Girty, G.H., Kimbrough, D.L., and Martin-Barajas, A., eds., Tectonic evolution of northwestern Mexico and the southwestern USA: A Volume in Honor of R. Gordon Gastil, Geological Society of America Special Paper 374.

Tulloch, A.J., and Kimbrough, D.L., 2003, Paired plutonic belts in convergent margins and the development of high Na, Al, Sr, low Y magmatism: the Peninsular Ranges Batholith of California and the Median Batholith of New Zealand, in Johnson, S.E., Paterson, S.R., Fletcher, J., Girty, G.H., Kimbrough, D.L., and Martin-Barajas, A., eds., Tectonic evolution of northwestern Mexico and the southwestern USA: A Volume in Honor of R. Gordon Gastil, Geological Society of America Special Paper 374.

Böhnel, H., Delgado-Argote, L.A., and Kimbrough, D.L., 2002, Discordant paleomagnetic data for Early Cretaceous intrusive rocks from Baja California: Latitude displacement, tilt, or vertical axis rotation?: Tectonics, v. 21, doi:10.1029/2001TC001298, p. 1-12.

Riggs, E.M., and Kimbrough, D.L., 2002, Implementation of constructivist pedagogy in a geoscience course designed for pre-service K-6 teachers; progress, pitfalls, and lessons learned: Journal of Geoscience Education, v. 50, p. 49-55.

Kimbrough, D.L., Smith, D.P., Mahoney, J.B., Moore, T.E., Gastil, R.G., Ortega Rivera, M.A., and Fanning, C.M., 2001, Forearc basin sedimentary response to rapid Late Cretaceous batholith emplacement in the Peninsular Ranges of southern and Baja California: Geology, v. 29, p.  491–494.

Tullock, A.J., Ireland, T.R., Walker, N.W., Kimbrough, D.L., 2000, U-Pb zircon ages from the Milford Orthogneiss, Milford Sound, northern Fiordland: Paleozoic igneous emplacement and Early Cretaceous metamorphism. Institute of Geological and Nuclear Sciences report 2000/6, 14p.

Lovera, O.M., Grove, M., Kimbrough, D.L., Abbott, P.L., 1999, Magnitude and time scales in the exhumation of arc crust: an approach based upon analysis of detrital closure age distributions: Journal of Geophysical Research, v. 104, no. B12, p. 29,419-29,438.

Tulloch, A.J., Kimbrough, D.L., Landis, C.A., Mortimer, N., Johnston, M.R., 1999, Relationships between the Brook Street Terrane and Median Tectonic Zone (Median Batholith): evidence from Jurassic conglomerates: New Zealand Journal of Geology and Geophysics, v. 42, p. 279-293.

Landis, C.A., Campbell, H.J., Aslund, T., Cawood, P.A., Douglas, A., Kimbrough, D.L., Pillai, D.D.L., Raine, J.I., and Willsman, A., 1999, Permian-Jurassic strata at Productus Creek, Southland, New Zealand: implications for terrane dynamics of the eastern Gondwanaland margin: : New Zealand Journal of Geology and Geophysics, v. 42, p. 255-278.

Mortimer, N., Tulloch, A.J., Spark, R.N., Walker, N.W., Ladley, E., Allibone, A., Kimbrough, D.L., 1999, Overview of the Median Batholith, New Zealand: a new interpretation of the geology of the Median Tectonic Zone and adjacent rocks: Journal of African Earth Sciences, v. 29, no. 1, p. 257-268.

Kimbrough, D.L., Abbott, P.A., Gastil, R.G., Hamner, P.J.W., 1997, Provenance investigations using magnetic susceptibility: Journal of Sedimentary Research, v. 67, no. 5, p. 879-883..

Ortega-Rivera, Amabel, Farrar, E., Hanes, J.A., Archibald, D.A., Gastil, R.G., Kimbrough, D.L., Zentilli, M., Lopez Martinez, M., Feraud, G., Ruffet, G., 1997, Chronological constraints on the thermal and tilting history of the Sierra San Pedro Martir Pluton, Baja California, Mexico, from U/Pb, 40Ar/39Ar, and fission-track geochronology, Geological Society of America Bulletin, 109 (6), p. 728-745

Herzig., C.T., Kimbrough, D.L., Tainosho, Y., Kagami, H., Iizumi, S., and Hayasaka, Y., 1998, Late Cretaceous U/Pb zircon ages and Precambrian crustal inheritance in Ryoke granitoids, Kinki and Yanai districts, Japan, Geochemical Journal, 32 (1), p. 21-31.

Luyendyk, B., Cisowski, S., Smith, C., Richard, S., Kimbrough, D., 1996, Paleomagnetic study of the northern Ford Ranges, western Marie Byrd Land, West Antarctica: Motion between West and East Anarctica. Tectonics, v. 15, p. 122-141.

Kimbrough, D.L., Tulloch, A.J., Coombs, D.S., and Landis, C.A., Johnston, M.R., Mattinson, J.M., 1994, Uranium-lead zircon ages from the Median Tectonic Zone, South Island, New Zealand: New Zealand Journal of Geology and Geophysics, v. 37, p. 393-419.

Kimbrough, D.L., Tulloch, A.J., and Rattenbury, M.S., 1994, Late Jurassic-Early Cretaceous metamorphic age of Fraser Complex migmatite, Westland, New Zealand: New Zealand Journal of Geology and Geophysics, v. 37, p. 137-142.

Tulloch, A.J., Kimbrough, D.L. and Waight, T.E., 1994, The French Creek Granite, North Westland, New Zealand-Late Cretaceous A-type plutonism on the Tasman Passive Margin: in Gerrit J. Van Der Lingen, Kerry M. Swanson & Roderick J. Muir, eds., Evolution of the Tasman Sea Basin, Proceedings of the Tasman Sea Conference, Balkema/Rotterdam/Brookfield, p. 65-66.

Richard, S.M., Smith, C.H., Kimbrough, D.L., Fitzgerald, P.G., Luyendyk, B.P., McWilliams, M.O., 1994, Cooling history of the northern Ford Ranges, Marie Byrd Land, West Antarctica. Tectonics, v. 13, no. 4, p. 837-857.

Kimbrough, D.L., Tulloch, A.J., Geary, E., Coombs, D.S., and Landis, C.A., 1993, Isotopic ages from the Nelson region of South Island New Zealand: crustal structure and definition of the Median Tectonic Zone: Tectonophysics, v. 225, p. 433-448.

James, E., Kimbrough, D.L., Mattinson, J.M., 1993, Evaluation of pre-Tertiary piercing points along the northern San Andreas Fault using U/Pb zircon dating, initial Sr and common Pb isotopic compositions: in Powell, R.E., Weldon, R.J., II, and Matti, J.C., eds., The San Andreas fault system: Displacement, planispastic reconstruction, and geologic evolution: Geological Society of America Memoir 178, p. 257-271.

Kimbrough, D.L., Mattinson, J.M. Coombs, D.S., Landis, C.A., and Johnston, M., 1992, Uranium-lead ages from the Dun Mountain Ophiolite Belt and Brook Street Terranes, South Island, New Zealand: Geological Society of America Bulletin, v. 104, p. 429-443.

Tulloch, A.J., Kimbrough, D.L., and Wood, R., 1991, Carboniferous granite basement from the southwest margin of the Challenger Plateau, Tasman Sea: New Zealand Journal of Geology and Geophysics, v. 34, p. 121-126.

Bradshaw, J.Y., and Kimbrough, D.L., 1991, Mid-Paleozoic age of granitoids in enclaves within Early Cretaceous granulites Fiordland, southwest New Zealand: New Zealand Journal of Geology and Geophysics, v. 34, p. 455-469.

Miller, M., Bradshaw, J.Y., Kimbrough, D.L., Stern, T., Buntzen, 1991, Isotopic evidence for early Proterozoic age of the Idono Sequence, west-central Alaska: The Journal of Geology, v. 99, no. 2, p. 209-223.

Kimbrough, D.L., Luyendyk, B.P., Richard, S., Smith, C., 1990, Geology of metamorphic rocks and granitoids: Ford Ranges of Western Marie Byrd Land: Antarctic Journal of the United States, v. 25, no.5.

Kimbrough, D.L., and Tulloch, A.J., 1989, Early Cretaceous age of orthogneiss from the Charleston Metamorphic Group, New Zealand: Earth and Planetary Science Letters, v. 95, p. 130-140.

Tulloch, A.J., and Kimbrough, D.L., 1989, The Paparoa metamorphic core complex, Westland-Nelson, New Zealand: Cretaceous extension associated with fragmentation of the Pacific margin of Gondwana: Tectonics, v. 8, p. 1217-1234.

Kimbrough, D.L., Hickey, J., and Tosdal, R., 1987, U-Pb ages of grantoid clasts in upper Mesozoic arc-derived strata of the Vizcaino Peninsula, Baja California, Mexico: Geology, v. 15, p. 26-29.

Shervais, J.W., and Kimbrough, D.L., 1987, Alkaline and Transitional Sub-alkaline Metabasalts in the Franciscan Complex Melange, California: E.M. Morris and J.D. Pasteris, eds., Mantle Metasomatism and Alkaline Magmatism, Geological Society of America Special Paper 215, p. 165-182.

Cooper, A.F., Barreiro, B.A., Kimbrough, D.L., and Mattinson, J.M., 1987, Lamprophyre dike intrusion and the age of the Alpine Fault, New Zealand: Geology, v. 15, p. 941-944.

Mattinson, J.M., Kimbrough, D.L., and Bradshaw, J.Y., 1986, Western Fiordland Orthogneiss: Early Cretaceous arc magmatism and granulite facies metamorphism, New Zealand: Contributions to Mineralogy and Petrology, v. 92, p. 383-392.

Dickins, J.M., Johnston, M.R., Kimbrough, D.L., and Landis, C.A., 1986, The stratigraphic position and age of the Croisilles melange, East Nelson: New Zealand Journal of Geology and Geophysics, v. 29, p. 291-301.

Shervais, J.W., and Kimbrough, D.L., 1985, Geochemical evidence for the tectonic setting of the Coast Range Ophiolite: A composite island arc-oceanic crust terrane in Western California: Geology, v. 13, p. 35-38.

Shervais, J.W., and Kimbrough, D.L., 1985, Reply to comment on "Geochemical evidence for the tectonic setting of the Coast Range Ophiolite: a composite island arc - oceanic crust terrane in western California: Geology, v. 13, p. 828-829.

Symposium Volumes & Fieldguides 

Kimbrough, D.L., Abbott, P.L., Gastil, R.G., Walsh, D.P., Dagley, R.L., Davidson, K.R., Augustine, E., 1998, Outcrop Magnetic Susceptibility Measurements Applied To Provenance Investigation Of Late Cretaceous Forearc Basin Strata, Northern Peninsular Ranges, California. GSA Cordilleran Section Volume and Guidebook to Field Trip #13, R.J. Behl, ed, p. 16-22.

Herzig, C.T. and Kimbrough, D.L., 1998, Provenance of silicic volcanic clasts in Upper Cretaceous strata, Northern Santa Ana Mountains, California. Geological Society of America Cordilleran Section Volume and Guidebook to Field Trip #13, R.J. Behl, ed, p. 23-29.

Novak, M., Cerny, P., Kimbrough, D. L., Taylor, M. C., Ercit, T. S., 1998, U-Pb ages of monazite from granitic pegmatites in the Moldanubian Zone and their geological implications Schulmann, Karel (prefacer), Proceedings of the International conference; Palaeozoic orogenesis and crustal evolution of European lithosphere, Acta Universitatis Carolinae. Geologica, 42 (2), p. 309-310, illus. incl. 1 table, 1998.

Gastil, R.G., Kimbrough, D.L., Abbott, P.L., 1996, Arrival of the Colorado River in the Salton Trough defined by magnetic susceptibility. in Abbott, P.L., ed., Field trip guide to the Vallecitos Mountains/Fish Creek Wash, South Coast Geological Society.

Todd, V.R., Kimbrough, D.L., Herzig, C.T., 1994, The Peninsular Ranges Batholith from Western Volcanic Arc to Eastern Mid-Crustal Intrusive and Metamorphic Rocks, San Diego County, California. in McGill S.F. & Ross, T.M., eds., Geological Investigations of an Active Margin, Geological Society of America Cordilleran Section Guidebook, 27th Annual Meeting, San Bernandino County Museum Association, p. 227-235.

Todd, V.R., Kimbrough, D.L., 1994, Volcanic to Plutonic Transect across the Peninsular Ranges Batholith, San Diego County, California. in McGill S.F. & Ross, T.M., eds., Geological Investigations of an Active Margin, Geological Society of America Cordilleran Section Guidebook, 27th Annual Meeting, San Bernandino County Museum Assoc., p. 214-226.

Carrasco, A.P., Kimbrough, D.L., Herzig, C.T., and Meeth, G., 1993, Discovery of accretionary lapilli in the Santiago Peak Volcanics of southern and Baja California: in Abbott & Sanchez, eds., Annual Field Trip Guidebook of the South Coast Geological Society, Geology of northern Baja California, Mexico.

Kimbrough, D.L., Cross, K.C., Korsch, R.J., 1993, U-Pb isotopic ages for zircons from the Pola Fogal and Nundle granite suites, southern New England Orogen. in Flood, P.G. and Aitchison, J., eds., Tectonics and metallogenesis of the New England Orogen, Department of Geology and Geophysics, University of New England pub., p. 403-412.

Retallack, Gregory, J., Reene, Paul, R., Kimbrough, David, L., 1993, New Radiometric Ages for Triassic Floras of Southeast Gondwana. in S.G. Lucas, M. Morales (eds.) The Non-Marine Triassic, New Mexico Museum of Natural History and Science Bulletin, no. 3, p. 415-418.

Luyendyk, B.P., Richard, S.M., Smith, C.H., Kimbrough, D.L., 1992, Geological and Geophysical Exploration in the Northern Ford Ranges, Marie Byrd Land, Antarctica.in Yoshida et al., eds., Recent Progress in Antarctic Earth Science, Terra Scientific Publishing Company, Tokyo, p. 279-288.

Walawender, M.J., Girty, G.H., Lombardi, M.M., Kimbrough, D.L., Girty, M.S., and Anderson, C.L., 1991, A synthesis of recent work in the Peninsular Ranges batholith. in Walawender, M.J. and Hanan, B.B.(eds.), Geological Excursions in Southern California and Mexico, Guidebook for the 1991 Annual Meeting Geological Society of America, p. 297-318

Smith, D.P., Sedlock, R.L., Kimbrough, D.L., and Busby-Spera, C.J., 1991, Mesozoic geology of Cedros Island. in Walawender, M.J. and Hanan, B.B., eds., Geological Excursions in Southern California and Mexico, Guidebook for the 1991 Annual Meeting Geological Society of America, p. 332-348

Kimbrough, D.L., 1989, Franciscan Complex rocks on Cedros Island, Baja California Sur, Mexico: radiolarian biostratigraphic ages from a chert melange block and petrographic observations on metasandstone. in P. Abbott (ed.), Geologic studies in Baja California, Society of Economic Paleontologists and Mineralogists, Pacific Section, v. 63, p. 103-108.

Kimbrough, D.L., 1985, Tectonostratigraphic terranes of the Vizcaino Peninsula and Cedros and San Benito Islands, Baja California, Mexico. in Howell, D.G., ed., Tectonostratigraphic Terranes of the Circum-Pacific Region, Circum-Pacific Council for Energy and Mineral Resources, Houston, Texas, p. 285-298.

Kimbrough, D.L., 1983, Paleogeographic significance of the Gran Canon Formation, Baja California: in Frizzell, V.A., ed., Geology of the Baja California Peninsula, Society of Economic Paleontologists and Mineralogists, Pacific Section, v. 39, p. 183-192.

Kimbrough, D.L., 1979, Volcanic-plutonic sequences, Cedros Island, Baja California, Mexico. in Abbott et al., eds., Field Guides and Papers, GSA Annual Meeting, San Diego.

Recent Abstracts

Kimbrough, D.L., Magistrale, H., Tulloch, A., Grove, M., and McNulty, B., 2003, Orogenic welts, delamination, and non-steady-state emplacement of large-volume continental margin batholiths: examples from Peru, California, and New Zealand: Geological Society of America Abstracts w/ Programs, v. 34, No. 7, p. 140.

Grove, M., Kimbrough, D.L., and Fletcher, J., 2003, High-temperature thermochronology of Los Cabos Block basement rocks: Geologic Society of America Abtracts with Programs, Cordilleran Section meeting 32-5.

Kimbrough, D.L., Grove, M., and Fletcher, J., 2003, Provenance Investigation of the Middle Miocene Magdelena Fan of Baja California Sur, Mexico: Geological Society of America Abstracts w/ Programs, Puerto Vallarta Cordilleran GSA meeting.

Siddoway, C.S., Teyssier, C., Richard, S., and Kimbrough, D.L., 2003, Strike slip attachment hypothesis for Cretaceous exhumation of the Fosdick Mountains migmatite dome, Antarctic: Geological Society of America Abstracts w/ Programs, v. 34, No. 7, p. 474.

Kimbrough, D.L., Gastil, R.G., Garrow, P.K., Grove, M., Aranda-Gomez, J., Perez Venzor, J.A., and Fletcher, J., 2002, A potential correlation of plutonic suites from the Los Cabos block and Peninsular Ranges batholith: VI International Meeting on Geology of the Baja California Peninsula, La Paz, Baja California Sur, p. 9.

Garrow, P.K., Kimbrough, D.L., Grove, M., Aranda-Gomez, J., Ortega Rivera, M.A., and Pérez-Venzor, J.A., 2002, Recrystallization and exhumation of the La Gata metamorphic complex, Los Cabos block, Baja California Sur, Mexico: VI International Meeting on Geology of the Baja California Peninsula, La Paz, Baja California Sur, p. 14.

Riggs, E.M., and Kimbrough, D.L., 2001, Improving the quantitative skills of pre-service teachers using an earth science context. Geological Society of America Abstracts w/ Programs, 33, no. 6, p. A-177.

Kimbrough, D.L., Riggs, E.M., and Robinson, K., 2001, Show Me Geology: Innovative partnering in pre-and in-service teacher preparation. Geological Society of America Abstracts w/ Programs, 33, no. 6, p. A-178.

Riggs, E.M., and Kimbrough, D.L., 2000, Progress and Pitfalls in Constructivist Teaching in the Earth Sciences for Pre-Service Teachers. Geological Society of America Abstracts w/ Programs, 32, no. 7, p. A-267.

Farquharson, P.T., Kimbrough, D.L. And Gastil, R.G., 1999, Regional Dike Swarm Emplacement of Silicic Arc Magma in The Peninsular Ranges Batholith: The San Marcos Dike Swarm (SMDS) of Northern Baja California. Geological Society of America Abstracts w/ Programs, v. 31, No. 6, P. A-54.

Kimbrough, D.L., Gastil, R.G., Magistgrale, H., 1999, A Cretaceous Tonalite-Trondjemite-Granodiorite Large Igneous Province in the Western North American Cordillera. Geological Society of America Abstracts w/ Programs, v. 31, No. 6, P. A-70.

Mahoney, J., Kimbrough, D.L., Mustard, P.S., Smith, D.P., Moore, T.E., 1998, Comparative Evolution of Cretaceous Basins in Baja California, Mexico and British Columbia:  implications for Terrane Translation. Geological Society of America Abstracts w/ Programs, v. 30, no. 7, p. A-356.

Kimbrough, D.L., Gastil, R.G., Magistrale, H., 1998, Enormous Late Cretaceous Magma Flux Associated with TTG Batholith emplacement: Eastern Peninsular Ranges Batholith Of Southern and Baja California. Geological Society of America Abstracts w/ Programs, v. 30, no. 7, p. A-258.

Grove, M., Lovera, O., Kimbrough, D.L., 1998, A Possible Method to Evaluate The Baja-Bc Connection: Detrital K-Feldspar Closure Age Distributions from Forearc Sands. Geological Society of America Abstracts w/ Programs, v. 30, No. 7, P. A-356.

Novak, M., Cerny, P., Kimbrough, D.L., Taylor, M.C., Ercit, T.S., 1998, U-Pb Ages of Monazite from Granitic Pegmatites in the Moldanubian Zone and their Geological Implications. Abstracts, "Palaeozoic Orogenesis and Crustal Evolution of European Lithosphere" Conference, Prague 1998; In Acta Univ. Carolinae - Geologica 1998, Vol. 42, no. 2, p. 309-310.

Lovera, O.M., Grove, M., Kimbrough, D.L., Abbott, P.L., 1997, Modeling of detrital closure ages from basement terranes. Geological Society of America Abstracts w/ Programs, v. 29, no. 6, p. A-348.

Kimbrough, D.L., Gastil, R.G., 1997, Rapid Late Cretaceous batholith formation in the eastern Peninsular Ranges by emplacement of La Posta-type high-Al tonalite-trondhjemite-granodiorite magma; a consequence of unusually thick mid-Cretaceous crust. Geological Society of America Abstracts w/ Programs, v. 29, no. 6, p. A-457.