Mineral Sciences Staff
- Timothy O'Hearn
- Research Assistant - Division of Petrology & Volcanology
- Phone: (202) 633-1811
- Fax: (202) 357-2476
- E-mail Address: ohearnt
- Mailing Address:
Smithsonian Institution
PO Box 37012, MRC 119
Washington, DC 20013-7012 - Shipping Address:
Smithsonian Institution
National Museum of Natural History
10th & Constitution NW
Washington, DC 20560-0119
Education
M.S. George Washington University (1984)B.A. State University of New York, Oswego (1973)
Publications
Melson, W.G., Byerly, G., Nelen, J., O'Hearn, T., Wright, T.L. and Vallier, T., 1977, A catalog of the major element chemistry of abyssal volcanic glasses. Smithsonian Contributions to the Earth Sciences, no. 19, p. 31-60.
Melson, W.G. and O'Hearn, T., 1979, Basaltic glasses erupted along the mid-Atlantic Ridge between 0-37 N latitude: correlations between composition and latitude. American Geophysical Union Monograph 48, p. 249-261.
Taylor, P. T., Wood, C. A., and O'Hearn, T., 1980, Morphological investigations of submarine volcanism: Henderson Seamount, Geology, v. 8, p. 390-395.
Wright, T. L., Black, K. N., Swanson, D. A., and O'Hearn, T., 1980, Columbia River basalt: 1978-1979 sample data and chemical analyses, U.S. Geol. Surv. Open-file Report 80-921.
Batiza, R. and O'Hearn, T., 1982, Major element chemistry of basalt glasses dredged from young isolated volcanoes and the East Pacific Rise, 10 - 14 N, Arquipelago, no. 3, p201-230.
Wright, T. L., Black, K. N., Swanson, D. A., and O'Hearn, 1982, Columbia River basalt: 1980-1981 sample data and chemical analyses, U.S. Geol. Surv. Open-file Report 82-532.
Flower, M. F. J. and O'Hearn, T., 1983, An electron microprobe study of basalt chemical variation at Deep Sea Drilling Project sites 482-485, Gulf of California, Initial Reports of the Deep Sea Drilling Project, v. 65, p. 549-557. U.S. Government Printing Office.
Natland, J.H., Adamson, A.C., Laverne, C., Melson, W.G. and O'Hearn, T., 1983, A compositionally zoned nearly steady state magma chamber at the Costa Rica Rift: evidence from basalt glass and mineral data, Deep Sea Drilling Project Sites 501, 504, and 505, Initial Reports of the Deep Sea Drilling Project, v. 69, p. 811-857. U.S. Government Printing Office.
Robinson, P.T., Melson, W.G., O'Hearn, T., and Schmincke, H-U., 1983, Volcanic glass compositions of the Troodos Opiolite, Cyprus. Geology, v. 11, no. 7, p. 400-404.
Natland, J.H., Tarney, J., Marsh, N.G., Melson, W.G., and O'Hearn, T., 1984, Compositions, stratigraphy and alteration of pillow basalts, Hole 543A, near the Barbados Ridge. Initial Reports of the Deep Sea Drilling Project, 78, p. 393- 399.
Melson, W.G. and O'Hearn, T., 1986, Zero-age variations in the composition of abyssal volcanic rocks along the axial zone of the mid-Atlantic Ridge: Decade of North American Geology series-The North Atlantic Sea Floor, B. Tucholke and P. Vogt, Editors, Geological Society of America, Vol. M., Ch. 8, p. 117-136.
Batiza, R., Melson, W. G., and O'Hearn, T., 1988, Simple magma supply geometry inferred beneath a segment of the Mid-Atlantic Ridge, Nature, V. 335, p. 428-431.
Melson, W.G., O'Hearn, T. and Fredriksson, K., 1988, Composition and origin of basaltic glass spherules in pelagic clay from the eastern Pacific. Marine Geology. v. 83, p. 253-271.
Batiza, R., Fox, P. J., Vogt, P. R., Cande, S. C., Grindlay, N. R., Melson, W. G., and O'Hearn, T., 1989, Morphology, abundance, and chemistry of near-ridge seamounts in the vicinity of the Mid-Atlantic Ridge ~26 S, Jour. Geology, v. 97, p. 209-220.
Gribble, R. F., Stern, R. F., Bloomer, S. H., Stuben, D., O'Hearn, T., and Newman, S., 1996, MORB mantle and subduction components interact to generate basalts in the southern Mariana Trough back-arc basin, Geochim. Cosmochim. Acta, v. 60, p. 2153-2166.
Gribble, R. F., Stern, R. J., Newman, S., Bloomer, S. H., and O'Hearn, T., 1998, Chemical and isotopic composition of lavas from the Northern Mariana Trough: Implications for magmagenesis in back-arc basins, Jour. Petrology, v. 39, p. 125-154.
Haynes, J.T., Melson, W.G., O'Hearn, T., Goggin, K.E. and Hubbell, R., 1998, A High-potassium Mid-Ordovician Shale of the Central Appalachian Foredeep: Implications for Reconstructing Taconian Explosive Volcanism. p. 129-141. In Shales and Mudstones II, Schweizerbart'sche Verlagsbuchhandlung, Stuttgart, Germary.
Melson, W.G., Haynes, J.T., O'Hearn, T., Hubbell, R., Goggin, K.E., Locke, D. and Ross, D., 1998, K-shales of the central Appalachian Paleozoic: Properties and Origin. In Progress in Shale Research, p. 143-160. Springer-Verlag.
Melson, W., O'Hearn T. and Jarosewich, 2002, A data brief on the Smithsonian Abyssal Volcanic Glass Data File, Geochemistry, Geophysics and Geosystems, 3 (4) No. 10.1029/2001GC000249
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