Selected Publications
Skora S, Lapen TJ, Baumgartner LP, Johnson CM, Hellebrand E, Mahlen NJ, In Press, The duration of prograde garnet crystallization in the UHP
eclogites at Lago di Cignana, Italy. Earth and Planetary Science Letters
Brandon A.D., Lapen T.J., Debaille V., Beard B.L., Rankenburg K., Neal C., In Press, Re-Evaluating 142Nd/144Nd in Lunar Mare Basalts with Implications for the Early Evolution and Bulk Sm/Nd of the Moon. Geochimica et Cosmochimica Acta.
Lapen, T.J., Medaris, L.G.Jr., Beard, B.L., Johnson, C.M., In Press, The Sandvik peridotite, Gurskøy, Norway: Three billion years of mantle evolution in the Baltica lithosphere. Lithos.
Skora, S., Baumgartner, L.P., Mahlen, N.J., Lapen, T.J., Johnson, C.M., Bussy, F., 2008, Estimation of a maximum Lu diffusion rate in a natural eclogite garnet. Swiss J. Geosciences, DOI: 10.1007/s00015-008-1268-y.
Mahlen, N.J., Beard, B.L., Johnson, C.M., Lapen, T.J., 2008, An investigation of dissolution methods for Lu-Hf and Sm-Nd isotope studies in zircon- and garnet-bearing whole-rock samples. Geochemistry, Geophysics, and Geosystems (G3) 9, Q01002, doi:10.1029/2007GC001605
Chafetz, C.H., Wu, Z., Lapen, T.J., Milliken, K.L., 2008, Geochemistry of Preserved Permian Aragonitic Cements in the Tepees of the Guadalupe Mountains, West Texas and New Mexico, U.S.A. Journal of Sedimentary Research, 78, 187-198.
Copeland, P., Watson, E.B., Urizar, S.C., Patterson, D., Lapen, T.J., 2007, Alpha thermochronology of carbonates. Geochimica et Cosmochimica Acta, 71, 4488-4511
Kylander-Clark, A.C., Hacker, B.R., Johnson, C.M., Beard, B.L., Mahlen, N.J., Lapen, T.J., 2007, Coupled Lu-Hf and Sm-Nd geochronology constrains prograde and exhumation histories of high- and ultrahigh-pressure eclogites from western Norway, Chemical Geology, In Press
Lapen, T.J., Johnson, C.M., Baumgartner, L.P., Dal Piaz, G.V., Skora, S., Beard, B.L., 2007, Coupling of oceanic and continental crust during Eocene eclogite facies metamorphism: Evidence from the Monte Rosa nappe, Western Alps, Italy. Contributions to Mineralogy Petrology, 153:139-157.
Lapen, TJ, Medaris, LG Jr, Johnson, CM, and Beard, BL, 2005, Archean to Middle Proterozoic evolution of Baltica subcontinental lithosphere: evidence from combined Sm-Nd and Lu-Hf isotope analyses of the Sandvik ultramafic body, Norway. Contrib. Mineral. Petrol. 150:131-145
Brown, E.H., Lapen, T.J., Leckie, M.R., Silva, P.I., Verga, D., Singer, B.S., 2005, Revised ages of blueschist metamorphism and the youngest pre-thrusting rocks in the San Juan Islands, Washington. Canadian Journal of Earth Sciences, 42:1389-1400
Jicha, B.R., Singer, B., Brophy, J.G., Fournelle, J.H., Johnson, C.M., Beard, B.L., Lapen, T.J., and Mahlen, N.J., 2004, Variable impact of the subducted slab on Aleutian island arc magma sources: evidence from Sr, Nd, Pb, and Hf isotopes and trace element abundances. Jour. Petrol. 45:1845-1875.
Lapen, T.J., Mahlen, N.J., Johnson, C.M., Beard, B.L., 2004, High precision Lu and Hf isotope analyses of both spiked and unspiked samples: A new approach, Geochem Geophys Geosyst, 5, Q01010, doi: 10.1029/2003GC000582
Lapen, T.J., Johnson, C.M., Baumgartner, L.P., Mahlen, N.J., Beard, B.L., Amato, J.M., 2003, Burial rates during prograde metamorphism of an ultra-high pressure terrane: an example from Lago di Cignana, Western Alps, Italy, Earth Planet Sci Lett, 215, 57-72.
Dragovich, J.D., Logan, R.L., Schasse, H.W., Walsh, T.J., Lingley, W.S. Jr., Norman, D.K., Gerstel, W.J., Lapen, T.J, Schuster, J.E., and Meyers, K.D., 2002, Geologic map of Washington. Northwest quadrant: Washington Division of Geology and Earth Resources Geologic Map GM-50, 72 p., 3 pl., scale 1:250,000.
Brown, E.H., Talbot, J.L., McClelland, W.C., Feltman, J.A., Lapen, T.J., Bennett, J.D., Hettinga, M.A., Troost, M.L., Alvarez, K.M., Calvert, A.T., 2000, Interplay of plutonism and regional deformation in an obliquely convergent arc, southern Coast Belt, British Columbia: Tectonics, vol. 19, no. 3, p. 493-511.
Loen, J.S., Lingley, W.S., Jr., Anderson, Garth, Lapen, T.J., 2001, Reconnaissance investigation of sand, gravel, and quarried bedrock resources in the Bellingham 1:100,000 quadrangle, Washington: Washington Division of Geology and Earth Resources Information Circular 91, 45 p., 1 plate.
Lapen, T.J., 2000, Geologic map of the Bellingham 1:100,000-scale quadrangle, Washington: Washington Division of Geology and Earth Resources Open-File-Report 00-5, 35 p., 2 plates.
Dragovich, J.D., Norman, D.K., Lapen, T.J., Anderson, Garth, 1999, Geologic map of the Sedro-Woolley North and Lyman 7.5-minute quadrangles, western Skagit County, Washington: Washington Division of Geology and Earth Resources Open-File-Report 99-3, 37 p., 4 plates.
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