Published Articles

Christensen, JN, Conrad, ME, DePaolo, DJ, Dresel, PE (2007) Isotopic Studies of Contaminant Transport at the Hanford Site, WA. Vadose Zone Journal, v.6, pp. 1018–1030.

Maher, K, DePaolo, DJ, and Christensen, JN (2006) U-Sr Isotopic Speedometer: Fluid Flow and Chemical Weathering Rates in Aquifers. Geochimica et Cosmochimica Acta, v.70, pp. 4417-4435.

DePaolo, DJ, Maher, K, Christensen, JN, and McManus, J (2006) Sediment Transport Time Measured with U-series Isotopes: Results from ODP North Atlantic Drift Site 984. Earth and Planetary Science Letters, v. 248(1-2), pp. 394-410.

Nash, BP, Perkins, ME, Christensen, JN, Lee, D-C, and Halliday, AN (2006) The Yellowstone Hotspot in Space and Time: Nd and Hf Isotopes in Silicic Magmas. Earth Planet. Science Lttrs., v.247(1-2), pp.143-156.

Richter, FM, Mendybaev, RA, Christensen, JN, Hutcheon, ID, Williams, RW, Sturchio, NC and Beloso, Jr., AD (2006) Kinetic isotopic fractionation during diffusion of ionic species in water. Geochimica et Cosmochimica Acta, v.70(2), pp.277-289.

Gaeta, M, Freda, C, Christensen, JN, Dallai, L, Marra, F, Karner, DB, and Scarlato, P (2006) Time-dependent geochemistry of clinopyroxene from the Alban Hills (Central Italy): Clues to the source and evolution of ultrapotassic magmas. Lithos, v.86(3-4), pp.330-346.

Christensen, JN, Rosenfeld, JL and DePaolo, DJ (1989) Rates of tectonometamorphic processes from rubidium and strontium isotopes in garnet. Science, v.224, pp. 1465-1469.

Christensen, JN and DePaolo, DJ (1993) Timescales of large volume silicic magma systems: constraints from Sr isotopic systematics of phenocrysts and glass from the Bishop Tuff, Long Valley, California. Contrib. Miner. Petrol., v.113, pp. 100-114.

Christensen, JN, Selverstone, J, Rosenfeld, JL and DePaolo, DJ (1994) Correlation by Rb-Sr geochronology of garnet growth histories from different structural levels within the Tauern Window, Eastern Alps. Contrib. Miner. Petrol. , v. 118, pp. 1-12.

Halliday, AN, Lee, D-C., Christensen, JN, Walder, AJ, Freedman, PA, Jones, CE, Hall, CM, Yi, W, and Teagle, D (1995) Recent developments in inductively coupled plasma magnetic sector multiple collector mass spectrometry. Int. J. Mass Spectrom. Ion Proc., v.146/147, p.21-33.

Christensen, JN, Halliday, AN, Vearncombe, JR and Kesler, SE (1995) Testing models of large-scale crustal fluid flow using direct dating of sulfides: Rb-Sr evidence for early dewatering and formation of MVT deposits, Canning Basin, Australia. Econ. Geol. v. 90, p. 877-884

Halliday, AN, Lee, D-C, Christensen, JN (1995) Indium and tin in basalts, sulfides, and the mantle. Geochim. Cosmochim. Acta, v. 59, p. 5081-5090.

Christensen, J, Halliday, AN, Leigh, KE., Randell, RN and Kesler, SE (1995) Direct dating of sulfides by Rb-Sr - a critical test using the Polaris Mississippi Valley-type Zn-Pb deposit.  Geochim. Cosmochim. Acta, v. 59, p. 5191-5197.

Christensen, J, Halliday, AN, Lee, D-C and Hall, CM (1995) In situ  Sr isotopic analysis by laser ablation. Earth Planet. Sci. Lttr., v. 136, p. 79-85.

Christensen, JN and Halliday, AN (1996) Rb-Sr ages and Nd isotopic compositions of melt inclusions from the Bishop Tuff and the generation of silicic magma. Earth Planet. Sci. Lttr., v. 144, p. 547-561.Christensen, JN, Halliday, AN, and  Kesler, SE (1996) Rb-Sr dating of sphalerite and the ages of MVT's. Econ. Geol., Special Volume #4 Carbonate-hosted Pb-Zn Deposits, p. 527-535.

Christensen, JN, Halliday, AN, Godfrey, LV, Hein, JR and Rea, DK (1997) Climate dynamics and the lead isotopic records in Pacific ferromanganese crusts. Science, v. 277, p. 913-918.

Halliday, AN, Christensen, JN, Lee, D- C, Hall, CM, Ballentine, CJ, Rehkþmper, M, Yi, W, Luo, X and Barfod, D (1998) ICP multiple collector mass spectrometry and in situ high precision isotopic analysis. In Applications of microanalytical techniques to understanding mineralizing processes eds: MA McKibben, WCP Shanks and WI Ridley, Reviews in Economic Geology 7, Society of Economic Geologists.

Halliday, AN, Lee, D-C, Christensen, JN, Rehkþmper, M, Yi, W, Luo, X, Hall, CM, Ballentine, CJ, Pettke, T and Stirling, C (1998) Applications of mulltiple collector ICPMS to cosmochemistry, geochemistry and paleoceanography. Geochim. Cosmochim. Acta, v. 62 (6), p.919-940.

Burton, KW, D-C. Lee, Christensen, JN, Halliday, AN, and Hein, JR (1999) Actual timing of neodymium isotopic variations recorded by Fe-Mn crusts in the Western North Atlantic. Earth Planet. Sci. Lttr., v. 171, p. 149-156

Lee, D-C, Halliday, AN, Hein, JR, Burton, KW, Christensen, JN, and GŸnther, D (1999) Hafnium isotopic stratigraphy of ferromangenese crusts. Science, v. 285, p. 1052-1054.

Halliday, AN, Christensen, JN, Lee, D-C., Rehkþmper, M, Hall CM, Luo, X (2000) Multiple-Collector Inductively Coupled Plasma Mass Spectrometry. in ÒInorganic Mass SpectrometryÓ, eds.: CB Barshick, DC Duckworth and DH Smith.

Stirling, CH, Lee, D-C, Christensen, JN and Halliday, AN (2000) High-precision in situ 238U-234U-230Th isotopic analysis using laser ablation multiple-collector ICPMS. Geochim. Cosmochim. Acta, v. 64 (21), p. 3737-3750.

Tretbar, DR, Arehart, GB and Christensen, JN (2000) Dating gold deposition in a Carlin-type gold deposit using Rb/Sr methods on the mineral galkhaite. Geology, v.28(10), p.947-950.

Piotrowski, AM, Lee, DC; Christensen, JN, Burton, KW, Halliday, AN, Hein, JR, GŸnther, D (2000) Changes in erosion and ocean circulation recorded in the Hf isotopic compositions of North Atlantic and Indian Ocean ferromanganese crusts. Earth Planet, Sci. Lttrs., v.181(3), p.315-325.

Nelson, JL, Paradis, S, Christensen, JN and Gabites, J (2002) Canadian Cordilleran Mississippi Valley-type deposits: a case for Devonian-Mississippian backarc hydrothermal origin. Economic Geology, v.97(5), pp.1013-1036.

Arehart, GB, Chakurian, AM, Tretbar, DR, Christensen, JN, McInnes, BA and Donelick, RA (2003) Review of radioisotope dating of Carlin-type deposits in the Great Basin, western North America and implications for deposit genesis. Economic Geology, v.98, pp. 235-248.

Aciego, S, Kennedy, BM, DePaolo, DJ, Christensen, JN, and Hutcheon, I (2003) U–Th/He age of phenocrystic garnet from the 79 AD eruption of Mt. Vesuvius. Earth and Planetary Science Letters, v. 216(1-2), pp. 209-219.

Christensen, JN, Dresel, PE, Conrad, ME, Maher, K, and DePaolo, DJ (2004) Identifying the Sources of Subsurface Contamination at the Hanford Site in Washington using High-Precision Uranium Isotopic Measurements. Environmental Science & Technology, v.38(12), pp. 3330-3337.

Kesler,SE, Chesley, JT, Christensen, JN, Hagni, RD, Heijlen, W, Kyle, JR, Misra, KC, Muchez, P and van der Voo, R (2004) Discussion of “Tectonic Controls of Mississippi Valley-type Lead-Zinc Mineralization in Orogenic Forelands” by D.C. Bradley and D.L. Leach. Mineralium Deposita, in press.