PUBLICATIONS

1980

Hargraves, R.B., and T.C. Onstott. 1980. “Paleomagnetic Results from Some Southern African Kimberlites, and Their Tectonic Significance.”. Journal of Geophysical Research 85: 3587-96. doi:10.1029/JB085iB07p03587.

Onstott, T.C. 1980. “Application of the Bibgham Distribution Function in Palaeomagnetic Studies.”. Journal of Geophysical Research 85: 1500-1510. doi:10.1029/JB085iB03p01500.

1981

Onstott, T.C., and R.B. Hargraves. 1981. “Proterozoic Transcurrent Tectonics: Palaeomagnetic Evidence from Venezuela and Africa”. Nature 289: 131-36. doi:10.1038/289131a0.

1984

Onstott, T.C., R.B. Hargraves, Derek York, and Chris Hall. 1984. “CONSTRAINTS ON THE MOTIONS OF SOUTH AMERICAN AND AFRICAN SHIELDS DURING THE PROTEROZOIC: I. 40Ar 39Ar AND PALEOMAGNETIC CORRELATIONS BETWEEN VENEZUELA AND LIBERIA.”. Bulletin of the Geological Society of America 95: 1045-54. doi:10.1130/0016-7606(1984)95<1045:COTMOS>2.0.CO;2.

1986

Onstott, T.C., R.B. Hargraves, and D.L. Reid. 1986. “Constraints on the Tectonic Evolution of the Namaqua Province III: Palaeomagnetic and 40 Ar 39Ar Results from the Gannakouriep Dyke Swarm ( South Africa).”. Transactions - Geological Society of South Africa 89: 171-83. Referenced from www.scopus.com

Onstott, T.C., R.B. Hargraves, P. Joubert, and D.L. Reid. 1986. “Constraints on the Tectonic Evolution of the Namaqua Province I: Palaeomagnetic and 40 Ar 39Ar Results from the Richtersveld Subprovince ( South Africa).”. Transactions - Geological Society of South Africa 89: 117-42. Referenced from www.scopus.com

Onstott, T.C., R.B. Hargraves, and P. Joubert. 1986. “Constraints on the Tectonic Evolution of the Namaqua Province II: Reconnaissance Palaeomagnetic and 40 Ar 39Ar Results from the Namaqua Province and Kheis Belt ( South Africa).”. Transactions - Geological Society of South Africa 89: 143-70. Referenced from www.scopus.com

Phillips, D., and T.C. Onstott. 1986. “Application of 36 40Ar Versus 39Ar 40Ar Correlation Diagrams to the 40Ar 39Ar Spectra of Phlogopites from Southern African Kimberlites”. Geophysical Research Letters 13: 689-92. doi:10.1029/GL013i007p00689.

Sisson, V.B., and T.C. Onstott. 1986. “Dating Blueschist Metamorphism: A Combined 40Ar 39Ar and Electron Microprobe Approach”. Geochimica Et Cosmochimica Acta 50: 2111-17. doi:10.1016/0016-7037(86)90264-4.

1987

Diehl, J.F., T.C. Onstott, C.A. Chesner, and M.D. Knight. 1987. “No Short Reversals of Brunhes Age Recorded in the Toba Tuffs, North Sumatra, Indonesia”. Geophysical Research Letters 14: 753-56. doi:10.1029/GL014i007p00753.

Onstott, T.C., and J. Dorbor. 1987. “40Ar/39Ar/and/Paleomagnetic/Results/from/Liberia/and/the/Precambrian/APW/Data/Base/for/the/West/African/Shield”. Journal of African Earth Sciences 6: 537-52. doi:10.1016/0899-5362(87)90094-7.

Onstott, T.C., and M.W. Peacock. 1987. “Argon Retentivity of Hornblendes: A Field Experiment in a Slowly Cooled Metamorphic Terrane”. Geochimica Et Cosmochimica Acta 51: 2891-2903. doi:10.1016/0016-7037(87)90365-6.

1988

Hanson, R.E., T.J. Wilson, H.K. Brueckner, T.C. Onstott, M.S. Wardlaw, C.C. Johns, and K.C. Hardcastle. 1988. “Reconnaissance Geochronology, Tectonothermal Evolution, and Regional Significance of the Middle Proterozoic Choma-Kalomo Block, Southern Zambia”. Precambrian Research 42: 39-61. doi:10.1016/0301-9268(88)90009-5.

Onstott, T.C., and L. Pringle-Goodell. 1988. “The Influence of Microstructures on the Relationship Between Argon Retentivity and Chemical Composition of Hornblende”. Geochimica Et Cosmochimica Acta 52: 2167-68. doi:10.1016/0016-7037(88)90196-2.

Phillips, D., and T.C. Onstott. 1988. “Argon Isotopic Zoning in Mantle Phlogopite”. Geology 16: 542-46. doi:10.1130/0091-7613(1988)016<0542:AIZIMP>2.3.CO;2.

Renne, P.R., and T.C. Onstott. 1988. “Laser-Selective Demagnetizaton: A New Technique in Paleomagnetism and Rock Magnetism”. Science 242: 1152-55. doi:10.1126/science.242.4882.1152.

1989

Onstott, T.C. 1989. “Preface”. Precambrian Research 42: 3. doi:10.1016/0301-9268(89)90011-9.

Onstott, T.C., C.M. Hall, and D. York. 1989. “40Ar/39Ar/Thermochronometry/of/the/Imataca/Complex,/Venezuela”. Precambrian Research 42: 255-91. doi:10.1016/0301-9268(89)90014-4.

Onstott, T.C., V.B. Sisson, and D.L. Turner. 1989. “Initial Argon in Amphiboles from the Chugach Mountains, Southern Alaska”. Journal of Geophysical Research 94: 4361-72. doi:10.1029/JB094iB04p04361.

Phillips, D., T.C. Onstott, and J.W. Harris. 1989. “40Ar/39Ar/Laser-Probe/Dating/of/Diamond/Inclusions/from/the/Premier/Kimberlite”. Nature 340: 460-62. doi:10.1038/340460a0.

Renne, P.R., J.M. Mattinson, C.W. Hatten, M. Somin, T.C. Onstott, G. Millán, and E. Linares. 1989. “40Ar/39Ar/and/U-Pb/Evidence/for/Late/Proterozoic/(Grenville-Age)/Continental/Crust/in/North-Central/Cuba/and/Regional/Tectonic/Implications”. Precambrian Research 42: 325-41. doi:10.1016/0301-9268(89)90017-X.

Sisson, V.B., L.S. Hollister, and T.C. Onstott. 1989. “Petrologic and Age Constraints on the Origin of a Low-Pressure High- Temperature Metamorphic Complex, Southern Alaska”. Journal of Geophysical Research 94: 4392-4410. doi:10.1029/JB094iB04p04392.

Swapp, S.M., and T.C. Onstott. 1989. “P-T-Time Characterization of the Trans-Amazonian Orogeny in the Imataca Complex, Venezuela”. Precambrian Research 42: 293-314. doi:10.1016/0301-9268(89)90015-6.

1990

Agrella-Filho, M.S. D, I.G. Pacca, P.R. Renne, T.C. Onstott, and W. Teixeira. 1990. “Paleomagnetism of Middle Proterozoic (1.01 to 1.08 Ga) Mafic Dykes in Southeastern Bahia State-São Francisco Craton, Brazil”. Earth and Planetary Science Letters 101: 332-48. doi:10.1016/0012-821X(90)90164-S.

Agrella-Filho, M.S. D, I.G. Pacca, W. Teixeira, T.C. Onstott, and P.R. Renne. 1990. “Paleomagnetic Evidence for the Evolution of Meso- to Neo-Proterozoic Glaciogenic Rocks in Central-Eastern Brazil”. Palaeogeography, Palaeoclimatology, Palaeoecology 80: 255-65. doi:10.1016/0031-0182(90)90136-U.

Kent, J.T., G.S. Watson, and T.C. Onstott. 1990. “Fitting Straight Lines and Planes With an Application to Radiometric Dating”. Earth and Planetary Science Letters 97: 1-17. doi:10.1016/0012-821X(90)90094-E.

Lee, J.K.W., T.C. Onstott, and J.A. Hanes. 1990. “An 40Ar 39Ar Investigation of the Contact Effects of a Dyke Intrusion, Kapuskasing Structural Zone, Ontario - A Comparison of Laser Microprobe and Furnace Extraction Techniques”. Contributions to Mineralogy and Petrology 105: 87-105. doi:10.1007/BF00320969.

Renne, P.R., T.C. Onstott, M.S. D Agrella-Filho, I.G. Pacca, and W. Teixeira. 1990. “40Ar/39Ar/Dating/of/1.0-1.1/Ga/Magnetizations/from/the/São/Francisco/and/Kalahari/Cratons:/Tectonic/Implications/for/Pan-African/and/Brasiliano/Mobile/Belts”. Earth and Planetary Science Letters 101: 349-66. doi:10.1016/0012-821X(90)90165-T.

Tanaka, K.L., T.C. Onstott, and E.M. Shoemaker. 1990. “Magnetostratigraphy of the San Francisco Volcanic Field, Arizona”. US Geological Survey Bulletin 1929. Referenced from www.scopus.com.

1991

Girard, J.-P., and T.C. Onstott. 1991. “Application of 40Ar39Ar Laser-Probe and Step-Heating Techniques to the Dating of Diagenetic K-Feldspar Overgrowths”. Geochimica Et Cosmochimica Acta 55: 3777-93. doi:10.1016/0016-7037(91)90074-F.

Lee, J.K.W., T.C. Onstott, K.V. Cashman, R.J. Cumbest, and D. Johnson. 1991. “Incremental Heating of Hornblende in Vacuo: Implications for 40 Ar 39 Ar Geochronology and the Interpretation of Thermal Histories”. Geology 19: 872-76. doi:10.1130/0091-7613(1991)019<0872:IHOHIV>2.3.CO;2.

Onstott, T.C., D. Phillips, and L. Pringle-Goodell. 1991. “Laser Microprobe Measurement of Chlorine and Argon Zonation in Biotite”. Chemical Geology 90: 145-68. doi:10.1016/0009-2541(91)90040-X.

Reid, D.L., I.G.D. Ransome, T.C. Onstott, and C.J. Adams. 1991. “Time of Emplacement and Metamorphism of Late Precambrian Mafic Dykes Associated With the Pan-African Gariep Orogeny, Southern Africa: Implications for the Age of the Nama Group”. Journal of African Earth Sciences 13: 531-41. doi:10.1016/0899-5362(91)90116-G.

Wood, D.J., H.H. Stowell, T.C. Onstott, and L.S. Hollister. 1991. “40 Ar 39 Ar Constraints on the Emplacement, Uplift and Cooling of the Coast Plutonic Complex Sill, Southeastern Alaska”. Geological Society of America Bulletin 103: 849-60. doi:10.1130/0016-7606(1991)103<0849:AACOTE>2.3.CO;2.

1992

Fiske, P.S., R.B. Hargraves, T.C. Onstott, C. Koeberl, and S.B. Hougen. 1992. “Pseudotachylites of the Beaverhead Impact Structure: Geochemicaly Geochronological, Petrographic, and Field Investigations”. Special Paper of the Geological Society of America 293: 163-76. doi:10.1130/SPE293-p163.

Haeussler, P., R.S. Coe, and T.C. Onstott. 1992. “Paleomagnetism of the Late Triassic Hound Island Volcanics: Revisited”. Journal of Geophysical Research 97: 617-19. doi:10.1029/92jb01361.

1993

Cohen, H.A., R.J. Cumbest, and T.C. Onstott. 1993. “Alumina Ceramic As a Mounting Medium for Electron Microprobe Analysis and 40Ar 39Ar Laser Microprobe Dating of Mineral Grains”. Chemical Geology 106: 443-52. doi:10.1016/0009-2541(93)90043-I.

Lo, Ching-Hua, T.C. Onstott, and Chihming Wang Lee. 1993. “40Ar/39Ar/Dating/of/Plutonic/Metamorphic/Rocks/from/Chinmen/Island/off/Southeast/China/and/Its/Tectonic/Implications”. Journal - Geological Society of China 36: 35-55. Referenced from www.scopus.com.

1994

Barnett, D.E., J.R. Bowman, T.L. Pavlis, J.R. Rubenstone, L.W. Snee, and T.C. Onstott. 1994. “Metamorphism and Near-Trench Plutonism During Initial Accretion of the Cretaceous Alaskan Forearc”. Journal of Geophysical Research 99: 007-24. doi:10.1029/94jb02462.

Cumbest, R.J., E.L. Johnson, and T.C. Onstott. 1994. “Argon Composition of Metamorphic Fluids: Implications for 40 Ar 39 Ar Geochronology”. Geological Society of America Bulletin 106: 942-51. doi:10.1130/0016-7606(1994)106<0942:ACOMFI>2.3.CO;2.

Hargraves, R.B., P.J. Hattingh, and T.C. Onstott. 1994. “Palaeomagnetic Results from the Timbavati Gabbros in the Kruger National Park, South Africa”. South African Journal of Geology 97: 114-18. Referenced from www.scopus.com.

Ledru, P., A. Cocherie, J. Barbosa, V. Johan, and T.C. Onstott. 1994. “Ages of Granulitic Metamorphism in the Sao Francisco Craton (Brazil): Implications for the Type of the Transamazonian Orogeny”. Tectonics 318 (2): 251-57.

Ages of granulitic metamorphism in the Sao Francisco Craton (Brazil)

Lo, C.-H., T.C. Onstott, C.-H. Chen, and T. Lee. 1994. “An Assessment of 40Ar39Ar Dating for the Whole-Rock Volcanic Samples from the Luzon Arc Near Taiwan”. Chemical Geology 114: 157-78. doi:10.1016/0009-2541(94)90049-3.

Onstott, T.C. 1994. “Microbiologists Meet Geologists in Bath”. Eos, Transactions American Geophysical Union 75: 378-79. doi:10.1029/94EO01020.

Onstott, T.C. 1994. “Preface”. Precambrian Research 69: vii-x. doi:10.1016/0301-9268(94)90074-4.

1995

Harlan, S.S., J.W. Geissman, C.D. Henry, and T.C. Onstott. 1995. “Paleomagnetism and 40Ar 39Ar Geochronology of Gabbro Sills at Mariscal Mountain Anticline, Southern Big Bend National Park, Texas: Implications for the Timing of Laramide Tectonism and Vertical Axis Rotations in the Southern Cordilleran Orogenic Belt”. Tectonics 14: 307-21. doi:10.1029/94TC03089.

Lo, C.-H., and T.C. Onstott. 1995. “Rejuvenation of K‒Ar Systems for Minerals in the Taiwan Mountain Belt”. Earth and Planetary Science Letters 131: 71-98. doi:10.1016/0012-821X(95)00011-Z.

Onstott, T.C., M.L. Miller, R.C. Ewing, G. W. Arnold, and D.S. Walsh. 1995. “Recoil Refinements: Implications for the 40Ar 39Ar Dating Technique” 59 (9): 1821-34. doi:10.1016/0016-7037(95)00085-E.

Tseng, H.-Y., P.J. Heaney, and T.C. Onstott. 1995. “Characterization of Lattice Strain Induced by Neutron Irradiation”. Physics and Chemistry of Minerals 22: 399-405. doi:10.1007/BF00213338.

1996

Bettencourt, J.S., T.C. Onstott, T.D. Jesus, and W. Teixeira. 1996. “Tectonic Interpretation of 40ar 39ar Ages on Country Rocks from the Central Sector of the río Negro-Juruena Province, Southwest Amazonian Craton”. International Geology Review 38: 42-56. doi:10.1080/00206819709465323.