Publications by Location
Western US
Christensen, N. I. (1966), Elasticity of ultrabasic rocks, J. Geophys. Res., 71, 5921-5931. PDF
Christensen, N. I. (1970), Possible greenschist facies metamorphism of the oceanic crust, Geol. Soc. Am. Bull., 81, 905-908. PDF
Christensen, N. I. (1971), Fabric, seismic anisotropy and tectonic history of the Twin Sisters dunite, Geol. Soc. Am. Bull., 82, 1681-1694. PDF
Christensen, N. I., and R. Ramananantrandro (1971), The elastic moduli and anisotropy of dunite to 10 kilobars, J. Geophys. Res., 76, 4003-4010. PDF
Christensen, N. I. (1971), Shear wave propagation in rocks, Nature, 229, 549-550. PDF
Christensen, N. I. (1972), Elastic properties of polycrystalline magnesium, iron and manganese carbonates to 10 kilobars, J. Geophys. Res., 77, 369-372. PDF
Christensen, N. I. (1972), The abundance of serpentinites in the oceanic crust, J. Geol., 80, 709-719. PDF
Christensen, N. I., and D. M. Fountain (1975), Constitution of the lower continental crust based on experimental studies of seismic velocities in granulite, Geol. Soc. Am. Bull., 86, 227-236. PDF
Christensen, N. I. (1978), Ophiolites, seismic velocities and ocean crustal structure, Tectonophysics, 47, 131-157. PDF
Christensen, N. I. (1979), Compressional wave velocities in rocks at high temperatures and pressures, critical thermal gradients, and crustal low-velocity zones, J. Geophys. Res., 84, 6849-6857. PDF
Christensen, N.I. (1984), The magnitude, symmetry and origin of upper mantle anisotropy based on fabric analyses of ultramafic tectonites, Geophys. J.R. Astr. Soc., 76, 89-111. PDF
Christensen, N. I. (1989), Pore pressure, seismic velocities and crustal composition, in Geophysical framework of the Continental United States: Boulder Colorado, Geol. Soc. Am. Memoir 172, edited by L. C. Pakiser Jr. and W. D. Mooney, pp. 783-798. PDF
Parsons, T., N. I. Christensen, and H. G. Wilshire (1995), Velocities of southern Basin and Range xenoliths: Insights on the nature of lower crustal reflectivity and composition, Geology, 23, 129-132. PDF
McCaffree-Pellerin, C. L., and N. I. Christensen (1998), Interpretation of crustal seismic velocities in the San Gabriel-Mohave region, southern California, Tectonophysics, 296, 253-271. PDF
Parsons, T., N. I. Christensen, et al. (1998), A new view into the Cascadia suduction zone and volcanic arc: Implications for earthquake hazards along the Washington margin, Geology, 26, 211-214. PDF
Fliedner, M. M., S. Klemperer, and N. I. Christensen (2000), Three-dimensional seismic model of the Sierra Nevada arc, California, and its implications for crustal and upper mantle composition, J. Geophys. Res., 105, 10, 899-10, 922. PDF
Soedjatmiko, B., and N. I. Christensen (2000), Seismic anisotropy under extended crust: evidence from upper mantle xenoliths, Cima Volcanic Field, California, Tectonophysics, 321, 279-296. PDF
Brocher, T. M., and N. I. Christensen (2001), Density and velocity relationships for digital sonic and density logs from coastal Washington and laboratory measurements of Olympic Peninsula mafic rocks and greywackes, USGS Open-File Report 01-264. 39, 1-30. PDF
Brocher, T. M., T. Parsons, R. J. Blakely, N. I Christensen, et al. (2001), Upper crustal structure in Puget Lowland, Washington: Results from the 1998 seismic hazards investigation in Puget Sound, J. Geophys. Res. 106, 13, 541-13, 564. PDF
Christensen, N. I. (2002), Continental mantle seismic anisotropy: A new look at the Twin Sisters massif, Tectonophysics, 355, 163-170. PDF
Christensen, N. I. (2004), Serpentinites, peridotites, and seismology, International Geology Review, vol. 46, 795-816. PDF
Lutter, W. J., G. S. Fuis, N. I. Christensen, et. al. (2004), Upper Crustal structure from the Santa Monica Mountains to the Sierra Nevada, Southern California: Tomographic results from the Los Angeles regional Seismic experiment, phase II (LARSE II). Bull. Seismological Soc. Am., vol. 94, 619-632. PDF
T. Parsons, R. J. Blakely, T. M. Brocher, N. I. Christensen, et al. (2006), Crustal Structure of the Cascadia Fore Arc of Washington, U. S. Geological Survey Professional Paper, 1661-D, 1-40. PDF
Eastern US
Christensen, N. I. (1965), Compressional wave velocities in metamorphic rocks at pressures to 10 kilobars, J. Geophys. Res., 70, 6147-6164. PDF
Christensen, N. I. (1966), Shear wave velocities in metamorphic rocks at pressures to 10 kilobars, J. Geophys. Res., 71, 3549-3556. PDF
Christensen, N. I. (1968), Compressional wave velocities in basic rocks, Pacific Sci., 22, 41-44. PDF
Christensen, N. I. (1970), Possible greenschist facies metamorphism of the oceanic crust, Geol. Soc. Am. Bull., 81, 905-908. PDF
Christensen, N. I. (1971), Shear wave propagation in rocks, Nature, 229, 549-550. PDF
Christensen, N. I. (1972), Elastic properties of polycrystalline magnesium, iron and manganese carbonates to 10 kilobars, J. Geophys. Res., 77, 369-372. PDF
Christensen, N. I., and D. M. Fountain (1975), Constitution of the lower continental crust based on experimental studies of seismic velocities in granulite, Geol. Soc. Am. Bull., 86, 227-236. PDF
Christensen, N. I. (1979), Compressional wave velocities in rocks at high temperatures and pressures, critical thermal gradients, and crustal low-velocity zones, J. Geophys. Res., 84, 6849-6857. PDF
Christensen, N. I., and H. F. Wang (1985), The influence of pore pressure and confining pressure on dynamic elastic properties of Berea sandstone, Geophysics, 50, 207-213. PDF
Christensen, N. I. (1989), Pore pressure, seismic velocities and crustal composition, in Geophysical framework of the continental United States: Boulder Colorado, Geol. Soc. Am. Memoir 172, edited by L. C. Pakiser Jr. and W. D. Mooney, pp. 783-798. PDF
Hughes, S., J. H. Luetgert, and N. I. Christensen (1993), Reconciling deep seismic refraction and reflection data from the Grenvillian-Appalachian boundary in western New England, Tectonophysics, 225, 255-269. PDF
Musacchio, G., W. D. Mooney, J. H. Luetgert, and N. I. Christensen (1997), Composition of the crust in the Grenville and Appalachian Provinces of North America inferred from Vp/Vs ratios, J. Geophys. Res., 102, 15, 225-15, 241. PDF
Okaya, D., and N. I. Christensen (2002), Anisotropic effects of non-axial seismic wave propagation in foliated crustal rocks, Geophys. Res. Letts. 10, 2, 1-4, doi: 10.1029/2001GL014285. PDF
Midwestern US
Christensen, N. I. (1979), Compressional wave velocities in rocks at high temperatures and pressures, critical thermal gradients, and crustal low-velocity zones, J. Geophys. Res., 84, 6849-6857. PDF
Christensen, N. I. (1989), Pore pressure, seismic velocities and crustal composition, in Geophysical framework of the continental United States: Boulder Colorado, Geol. Soc. Am. Memoir 172, edited by L. C. Pakiser Jr. and W. D. Mooney, pp. 783-798. PDF
Seront, B., D. Mainprice, and N. I. Christensen (1993), A determination of the three-dimensional seismic properties of anorthosite: Comparison between values calculated from the petrofabric and direct laboratory measurements, J. Geophys. Res., 98, 2209-2221. PDF
Johnson, J. E., and N. I. Christensen (1995), Seismic anisotropy of shales, J. Geophys. Res., 100, 5991-6003. PDF
Stanley, D., and N. I. Christensen (2001), Attenuation anisotropy in shale at elevated confining pressure, Int. J. Rock Mech. and Min. Sci., 28, 1047-1056. PDF
Southeastern US
Christensen, N. I., and D. Szymanski (1988), The origin of reflections from the Brevard Fault Zone, Jour. of Geophys. Res., 93, 1087-1102. PDF
Christensen, N. I. (1989), Reflectivity and seismic structure of the deep continental crust, J. Geophys. Res., 94, 17, 793-17, 804. PDF
Christensen, N. I., and D. L. Szymanski (1991), Seismic properties and the origin of reflectivity from a classic Paleozoic sedimentary sequence, Valley and Ridge province, southern Appalachians, Geol. Soc. Am. Bull., 103, 277-289. PDF
Johnston, J. E., and N. I. Christensen (1992), Shear wave reflectivity, anisotropies, Poisson's ratios, and densities of a southern Appalachian Paleozoic sedimentary sequence, Tectonophysics, 210, 1-20. PDF
Szymanski, D. L., and N. I. Christensen (1993), The origin of reflections beneath the Blue-Ridge-Piedmont Allochthon: A view through the Grandfather Mountain window, Tectonics, 12, 265-278. PDF
McCaffree, C. L., and N. I. Christensen (1993), Shear wave properties and seismic imaging of mylonite zones, J. Geophys. Res., 98, 4423-4435. PDF
Johnston, J.E., and N.I. Christensen (1993), Compressional to shear velocity ratios in sedimentary rocks, Int. J. Rock Mech. Min. Sci. & Geomech. Abstr., 30, 751-754. PDF
Johnston, J.E., and N.I. Christensen (1994), Elastic constants and velocity surfaces of indurated anisotropic shales, Surveys in Geophys., 15, 481-494. PDF
Johnston, J.E., and N.I. Christensen (1995), Seismic anisotropy of shales, J. Geophys. Res., 100, 5991-6003. PDF
Alaska
Brocher, T. M., M. A. Fisher, E. L. Geist, and N. I. Christensen (1989), A high-resolution seismic reflection/refraction study of the Chugach-Peninsular terrane boundary, southern Alaska, J. Geophys. Res., 94, 4441-4455. PDF
Fuis, G. S., E. L. Ambos, W. D. Mooney, N. I. Christensen, and E. Geist (1991), Crustal structure of accreted terranes in Southern Alaska, Chugach Mountains and Copper River Basin, from seismic refraction results, J. Geophys. Res., 96, 4187-4227. PDF
Brocher, T. M., W. J. Nokleberg, N. I. Christensen,et al. (1991), Seismic reflection/refraction mapping of faulting and regional dips in the Eastern Alaska Range, J. Geophys. Res., 96, 10, 233-10, 249. PDF
Brocher, T. M., and N. I. Christensen (1991), Seismic anisotropy due to preferred mineral orientation observed in shallow crustal rocks in southern Alaska: Reply to Crampin, Geology, 19, 859-860. PDF
Beaudoin, B. C., G. S. Fuis, ..., and N. I. Christensen (1992), Thin, low-velocity crust beneath the southern Yukon-Tanana terrane, east central Alaska: Results from Trans-Alaska crustal transect refraction/wide-angle reflection data, J. Geophys. Res., 97, 1921-1942. PDF
Brocher, T. M., G. S. Fuis, ..., and N. I. Christensen (1994), Mapping the megathrust beneath the northern Gulf of Alaska using wide-angle seismic data, J. Geophys. Res., 99, 11, 663-11, 686. PDF
Fuis, G. S., A. R. Levander, ..., and N. I. Christensen (1995), Seismic images of the Brooks Range, Arctic Alaska, reveal crustal-scale duplexing, Geology, 23, 65-68. PDF
Fuis, G. S., J. M. Murphy, ..., and N. I. Christensen (1997), Deep seismic structure and tectonics of northern Alaska: Crustal-scale duplexing with deformation extending into the upper mantle, J. Geophys. Res., 102, 20, 873-20, 896. PDF
Wissinger, E. S., A. Levander, and N. I. Christensen (1997), Seismic images of crustal duplexing and continental subduction in the Brooks Range, J. Geophys. Res., 102, 20, 847-20, 872. PDF
Okaya, D., and N. I. Christensen (2002), Anisotropic effects of non-axial seismic wave propagation in foliated crustal rocks, Geophys. Res. Letts. 10, 2, 1-4, doi: 10.1029/2001GL014285. PDF
Brocher, T. M., G. S. Fuis, W. J. Lutter, N. I. Christensen, and N. A. Ratchkovski (2004), Seismic velocity models for the Denali Fault zone along the Richardson Highway, Alaska. Bull. Seismological Soc. Am., 94, S85-S106. PDF
Fuis, G. S., T. E. Moore, ..., N.I. Christensen, et al. (2008), Trans-Alaska Crustal Transect and continental evolution involving subduction underplating and synchronous foreland thrusting, Geology, (36), 267-271, doi: 10.1130/G24257A.1. PDF
Hawaii
Christensen, N. I. (1966), Elasticity of ultrabasic rocks, J. Geophys. Res., 71, 5921-5931. PDF
Canada
Salisbury, M. H., and N. I. Christensen (1978), The seismic velocity structure of a traverse through the Bay of Islands Ophiolite Complex, Newfoundland, an exposure of oceanic crust and upper mantle, J. Geophys. Res., 83, 805-817. PDF
Christensen, N. I., and M. H. Salisbury (1979), Seismic anisotropy in the oceanic upper mantle: Evidence from the Bay of Islands Ophiolite Complex, J. Geophys. Res., 84, 4601-4610. PDF
Christensen, N. I., and M. H. Salisbury (1982), Lateral heterogeneity in the seismic structure of the oceanic crust, Geophys. J.R. Astr. Soc., 68, 675-688. PDF
Christensen, N. I., and S. M. Lundquist (1982), Pyroxene orientation within the upper mantle, Geol. Soc. Am. Bull., 93, 279-288. PDF
Christensen, N. I. (1984), The magnitude, symmetry and origin of upper mantle anisotropy based on fabric analyses of ultramafic tectonites, Geophys. J.R. Astr. Soc., 76, 89-111. PDF
Salisbury, M. H., and N. I. Christensen (1985), Olivine fabrics in the Bay of Islands Ophiolite: Implications for mantle structure and anisotropy, Canadian Journal of Earth Sciences, 22, 1757-1766. PDF
Kopylova, M. G., J. Lo, and N. I. Christensen (2004), Petrological constraints on seismic properties of the slave upper mantle (Northern Canada), Lithos, vol. 77, 493-510. PDF
Audet, P., M. G. Bostock, N. I. Christensen, and S. M. Peacock (2009), Seismic evidence for overpressured subducted oceanic crust and megathrust fault sealing, Nature, 457, 76-78, doi: 10.1038/nature07650. PDF
Peacock, S. M., N. I. Christensen, M. G. Bostock, and P. Audet (2011), High pore pressures and porosity at 35 km depth in the Cascadia subduction zone, Geology, 470-474, doi: 10.1130/G31649.1. PDF
Europe
Christensen, N. I. (1974), Compressional wave velocities in possible mantle rocks to pressures of 30 kilobars, J. Geophys. Res., 79, 407-412. PDF
Christensen, N. I., and D. M. Fountain (1975), Constitution of the lower continental crust based on experimental studies of seismic velocities in granulite, Geol. Soc. Am. Bull., 86, 227-236. PDF
Christensen, N. I. (1979), Compressional wave velocities in rocks at high temperatures and pressures, critical thermal gradients, and crustal low-velocity zones, J. Geophys. Res., 84, 6849-6857. PDF
Christensen, N. I. (1984), The magnitude, symmetry and origin of upper mantle anisotropy based on fabric analyses of ultramafic tectonites, Geophys. J.R. Astr. Soc., 76, 89-111. PDF
Christensen, N. I., W. W. Wepfer, and M. H. Salisbury (1987), Seismic properties of samples from the volcanic section of the Troodos Ophiolite, Hole CY-2a, in Cyprus Crustal Study Project Initial Report Hole CY2-2a, Geological Survey of Canada Paper, edited by P. T. Robinson, I. L. Gibson, and A. Panayiotou, pp. 307-315. PDF
Salisbury, M. H., N. I. Christensen, F. J. Vine, G. C. Smith, and S. Eleftherion (1989), Geophysical structure of the Troodos ophiolite from downhole logging, in Cyprus Crustal Study Project: Initial Report, Hole CY-4, Geological Survey of Canada, Paper 88-9, edited by I. L. Gibson, J. Malpas, P. T. Robinson, and C. Xenophontos, pp. 331-349. PDF
Christensen, N. I., and M. H. Salisbury (1989), Velocity structure of the Troodos Massif, an arc-derived ophiolite, in Cyprus Crustal Study Project: Initial Report, Hole CY-4, Geological Survey of Canada, Paper 88-9, edited by I. L. Gibson, J. Malpas, P. T. Robinson, and C. Xenophontos, pp. 351-369. PDF
Wepfer, W. W., and N. I. Christensen (1991), Q structure of the Oceanic Crust, Marine Geophys. Res., 13, 227-237. PDF
Christensen, N. I., L. G. Medaris Jr., H. F. Wang, and E. Jelnek (2001), Depth variation of seismic anisotropy and petrology in central European lithosphere: A tectonothermal synthesis from spinel lherzolite, J. Geophys. Res., 106, 645-664. PDF
Salisbury, M. H., N. I. Christensen, F. J. Vine, G. C. Smith, and S. Eleftherion (1989), Geophysical structure of the Troodos ophiolite from downhole logging, in Cyprus Crustal Study Project: Initial Report, Hole CY-4, Geological Survey of Canada, Paper 88-9, edited by I. L. Gibson, J. Malpas, P. R. Robinson, and C. Xenophontos, pp. 331-349.
Africa
Mooney, W. D., and N. I. Christensen (1994), Composition of the crust beneath the Kenya rift, Tectonophysics, 236, 391-408. PDF
Long, C., and N. I. Christensen (2000), Seismic anisotropy of South African upper mantle xenoliths, Earth and Planetary Sci. Lett., 179, 551-565. PDF
South America
Christensen, N. I. (1972), Elastic properties of polycrystalline magnesium, iron and manganese carbonates to 10 kilobars, J. Geophys. Res., 77, 369-372. PDF
Asia
Christensen, N. I., and J. D. Smewing (1981), Geology and seismic structure of the northern section of the Oman ophiolite, J. Geophys. Res., 86, 2545-2556. PDF
Christensen, N. I. (1984), The magnitude, symmetry and origin of upper mantle anisotropy based on fabric analyses of ultramafic tectonites, Geophys. J.R. Astr. Soc., 76, 89-111. PDF
Smewing, J. D., N. I. Christensen, I. D. Bartholomew, and P. Browning (1984), The structure of the oceanic upper mantle and lower crust as deduced from the northern section of the Oman ophiolite, in Ophiolites and Oceanic Lithosphere, edited by I. G. Gass et al., pp. 41-53, Blackwell Scientific Publications, England. PDF
Christensen, N. I. (1984), Pore pressure and oceanic crustal seismic structure, Geophys. J.R. Astr. Soc., 79, 411-424. PDF
Christensen, N. I. (1986), The influence of pore pressure on oceanic crustal seismic velocities, Jour. of Geodynamics, 5, 45-49. PDF
Christensen, N. I. (1989), Pore pressure, seismic velocities and crustal composition, in Geophysical framework of the continental United States: Boulder Colorado, Geol. Soc. Am. Memoir 172, edited by L. C. Pakiser Jr. and W. D. Mooney, pp. 783-798. PDF
Wepfer, W. W., and N. I. Christensen (1991), Q structure of the Oceanic Crust, Marine Geophys. Res., 13, 227-237. PDF
Miller, D. J., and N. I. Christensen (1994), Seismic signature and geochemistry of an island arc: A multidisciplinary study of the Kohistan accreted terrane, northern Pakistan, J. Geophys. Res., 99, 11, 623-11, 642. PDF
Zhao, Z., N. I. Christensen, and W. Zhou (2001), Elastic wave velocity in rocks from Dabieshan and its constraints for lithospheric composition and crust-mantle recycling, Progress in Natural Science (China), 11, 116-122. PDF
Meltzer, A., and N. I. Christensen (2001), Nanga Parbat Crustal anisotropy: Implications for interpretation of crustal velocity structure and shear-wave splitting, Geophys. Res. Lett., 28, 2129-2132. PDF
Okaya, D., and N. I. Christensen (2002), Anisotropic effects of non-axial seismic wave propagation in foliated crustal rocks, Geophys. Res. Letts. 10, 2, 1-4, doi: 10.1029/2001GL014285. PDF
Zhao, Z., Y. Niu, N. I. Christensen, W. Zhou, Q. Hou, Z. M. Zhang, H. Xie, Z. C. Zhang, and J. Liu (2011), Delamination and ultra-deep subduction of continental crust: constraints from elastic wave velocity and density measurement in ultrahigh-pressure metamorphic rocks, Journal of Metamorphic Geology, 1-21, doi:10.1111 fl.1525-1314.2011.00941.x. PDF
Iceland
Gibson I. L., and N. I. Christensen, et al. (1979), Crust of oceanic affinity in Iceland, Nature, 281, 347-351. PDF
Fridleifsson, I. B., I. L. Gibson, J. M. Hall, H. P. Johnson, N. I. Christensen, et al. (1982), The Iceland research drilling project, J. Geophys. Res., 87, 6359-6362. PDF
Christensen, N. I., and R. H. Wilkens (1982), Seismic properties, density, and composition of the Icelandic crust near Reydarfjordur, J. Geophys. Res., 87, 6389-6395. PDF
Robinson, P. T., J. M. Hall, N. I. Christensen, et al. (1982), The Iceland research drilling project: synthesis of results and implications for the nature of Icelandic and oceanic crust, J. Geophys. Res., 87, 6657-6667. PDF
Christensen, N. I. (1986), The influence of pore pressure on oceanic crustal seismic velocities, Jour. of Geodynamics, 5, 45-49. PDF
Christensen, N. I. (1989), Pore pressure, seismic velocities and crustal composition, in Geophysical framework of the continental United States: Boulder Colorado, Geol. Soc. Am. Memoir 172, edited by L. C. Pakiser Jr. and W. D. Mooney, pp. 783-798. PDF
New Zealand
Christensen, N. I. (1984), The magnitude, symmetry and origin of upper mantle anisotropy based on fabric analyses of ultramafic tectonites, Geophys. J.R. Astr. Soc., 76, 89-111. PDF
Christensen, N. I. (1984), Structure and origin of the Dun Mountain ultramafic massif, New Zealand, Geol. Soc. Am. Bull., 95, 551-558. PDF
Wepfer, W. W., and N. I. Christensen (1991), Q structure of the Oceanic Crust, Marine Geophys. Res., 13, 227-237. PDF
Davey, F. J., N. I. Christensen, et al. (1998), Preliminary results from a geophysical study across a modern continent-continent collisional plate boundary—the Southern Alps, New Zealand, Tectonophysics, 288, 221-235. PDF
Godfrey, N. J., N. I. Christensen, and D. A. Okaya (2000), Anisotropy of schists: Contribution of crustal anisotropy to active source seismic experiments and shear wave splitting observations, J. Geophys. Res., 105, 27, 991-28, 007. PDF
Okaya, D., and N. I. Christensen (2002), Anisotropic effects of non-axial seismic wave propagation in foliated crustal rocks, Geophys. Res. Letts. 10, 2, 1-4, doi: 10.1029/2001GL014285. PDF
Godfrey, N. J., N. I. Christensen, and D. A. Okaya (2002), The effect of crustal anisotropy on reflector depth and velocity determination from wide-angle seismic data: A synthetic example based on South Island, New Zealand, Tectonophysics, 355, 145-161. PDF
Christensen, N. I. (2004), Serpentinites, peridotites, and seismology, International Geology Review, vol. 46, 795-816. PDF
Christensen, N. I., D. A. Okaya (2007), Compressional and Shear Wave Velocities in South Island, New Zealand rocks and their application to the interpretation of seismological models of the New Zealand crust, A Continental Plate Boundary: Tectonics at South Island, New Zealand Geophysical Monograph Series 175, American Geophysical Union, 123-155, doi: 10.1029/175GM08. PDF
Fuis, G. S., T. E. Moore, ..., N. I. Christensen, et al. (2008), Trans-Alaska Crustal Transect and continental evolution involving subduction underplating and synchronous foreland thrusting, Geology, (36), 267-271, doi: 10.1130/G24257A.1. PDF
Atlantic Ocean
Christensen, N. I., and G. H. Shaw (1970), Elasticity of mafic rocks from the Mid-Atlantic Ridge, Geophys. J.R. Astr. Soc., 20, 271-284. PDF
Christensen, N. I. (1972), The abundance of serpentinites in the oceanic crust, J. Geol., 80, 709-719. PDF
Christensen, N. I., and M. H. Salisbury (1972), Seafloor spreading, progressive alteration of layer 2 basalts, and associated changes in seismic velocities, Earth Planet. Sci. Lett., 15, 367-375. PDF
Salisbury, M. H., and N. I. Christensen (1973), Progressive weathering of submarine basalt with age: further evidence of seafloor spreading, Geology, 1, 63-64. PDF
Christensen, N. I. (1973), D. M. Fountain, and R. J. Stewart, Oceanic crustal basement: a comparison of seismic properties of DSDP basalts and consolidated sediments, Mar. Geol., 15, 215-226. PDF
Christensen, N. I. (1974), The petrologic nature of the lower oceanic crust and upper mantle, in Geodynamics of Iceland and the North Atlantic Area, edited by Kristjansson, pp. 165-176, D. Reidel, Dordrecht-Holland. PDF
Christensen, N. I., and M. H. Salisbury (1975), Structure and constitution of the lower oceanic crust, Rev. Geophys. Space Phys., 13, 57-86. PDF
Carlson, R. L., and N. I. Christensen (1977), Velocities, densities, and elastic constants of basalt and trachytic tuff, DSDP Leg 39, in Initial Reports of the Deep Sea Drilling Project, Vol. XXXIX, edited by P. R. Supko, K. Perch-Nielsen, et al., pp. 493-496, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Carlson, R. L., and N. I. Christensen (1977), Velocity anisotropy and physical properties of deep sea sediments from the Western South Atlantic, in Initial Reports of the Deep Sea Drilling Project, Vol. XXXIX, edited by P. R. Supko, K. Perch-Nielsen, et al., pp. 555-560, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N. I. (1977), The geophysical significance of oceanic plagiogranite, Earth Planet. Sci. Lett., 36, 297-300. PDF
Christensen, N. I., R. D. Hyndman, J. M. Hull, and M. H. Salisbury (1978), Electrical resistivities, densities, and porosities of basalts from DSDP Leg 46, in Initial Reports of the Deep Sea Drilling Project, Vol. XLVI, edited by L. Dmitriev, J. Heirtzler, et al., pp. 383-388, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Carlson, R. L., and N. I. Christensen (1979), Velocity anisotropy in semi-indurated calcareous deep sea sediments, J. Geophys. Res., 84, 205-211. PDF
Hyndman, R. D., N. I. Christensen, and M. J. Drury (1979), Seismic velocities, densities, electrical resistivities, porosities and thermal conductivities of core samples from boreholes into the islands of Bermuda and the Azores, in Deep Drilling Results in the Atlantic Ocean: Ocean Crust, Maurice Ewing Series 2, edited by M. Talwani, C. G. Harrison, and D. E. Hayes, pp. 94-112, Am. Geophys. Un. PDF
Salisbury, M. H., R. Stephen, N. I. Christensen, and J. Francheteau (1979), The physical state of the upper levels of Cretaceous oceanic crust from the results of logging, laboratory studies and the oblique seismic experiment at DSDP sites 417 and 418, in Deep Drilling Results in the Atlantic Ocean: Ocean Crust, Maurice Ewing Series 2, edited by M. Talwani, C. G. Harrison, and D. E. Hayes, pp. 113-134, Am. Geophys. Un. PDF
Christensen, N. I. (1979), Compressional wave velocities in rocks at high temperatures and pressures, critical thermal gradients, and crustal low-velocity zones, J. Geophys. Res., 84, 6849-6857. PDF
Christensen, N. I., J. M. Hull, and K. A. Hubert (1979), Seismic velocities, densities and elastic constants at elevated pressures of basalts and volcaniclastic breccias, DSDP Leg 43, in Initial Reports of the Deep Sea Drilling Project, Vol. XLIII, edited by B. E. Tucholke, P. R. Vogt, et al., pp. 769-772, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N.I., S.C. Blair, R.H. Wilkens and, M.H. Salisbury (1979), Compressional wave velocities, densities, and porosities of basalts from holes 417A, 417D, and 418A, Deep Sea Drilling Project Legs 51-53, in Initial Reports of the Deep Sea Drilling Project, Vol. LI, LII, LIII, edited by T. Donnelly, J. Francheteau, et al., pp. 1467-1471 U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Hyndman, R. D., N. I. Christensen, and M. J. Drury (1984), The physical properties of basalt core samples from Deep Sea Drilling Project Leg 78B Hole 395A, in Initial Reports of the Deep Sea Drilling Project, 78, edited by B. Biju-Duval, J. C. Moore, et al., U.S. Govt. Ptg. Ofc., Washington, DC, pp. 801-810. PDF
Salisbury, M. H., J. H. Scott, N. I. Christensen, et al. (1988), Old oceanic crust, synthesis of logging, laboratory and seismic data from Leg 102, in Proceedings Ocean Drilling Program, Scientific Results 102, College Station, TX, edited by M. H. Salisbury, J. H. Scott, et al., pp. 155-180. PDF
Wepfer, W. W., and N. I. Christensen (1990), Compressional wave attenuation in oceanic basalt, J. Geophys. Res., 95,, 431-439. PDF
Iturrino, G. J., and N. I. Christensen (1991), Reflectivity modeling of the Layer 3 gabbroic sequence drilled at the Atlantis II fracutre zone, in Proceedings of the Ocean Drilling Program, Scientific Results, 188, College Station, TX (Ocean Drilling Program), edited by R. P. von Herzen, P. T. Robinson, et al., pp. 245-251. PDF
Iturrino, G. J., N. I. Christensen, S. Kirby, and M. H. Salisbury (1991), Seismic velocities and elastic properties of oceanic gabbroic rocks from Hole 735B, in Proceedings of the Ocean Drilling Program, Scientific Results, 118, College Station, TX (Ocean Drilling Program), edited by R. P. von Herzen, P. T. Robinson, et al., pp. 227-244. PDF
Wepfer, W. W., and N. I. Christensen (1991), Q structure of the Oceanic Crust, Marine Geophys. Res., 13, 227-237. PDF
Johnston, J. E., and N. I. Christensen (1997), Seismic properties of layer 2 basalts, Geophys. J.R. Astr. Soc., 128 (2), 285-300. PDF
Miller, D. J., and N. I. Christensen (1997), Seismic velocities of lower crustal and upper mantle rocks from the slow spreading Mid-Atlantic Ridge, south of the Kane Transformation Zone (MARK), in Proceedings of the Ocean Drilling Program, Scientific Results, 153, College Station, TX (Ocean Drilling Program), edited by J. A. Karson, M. Cannat, D. J. Miller, and D. Ethon, pp. 437-451. PDF
Tompkins, M. J., and N. I. Christensen (2001), Ultrasonic P- and S-wave attenuation in oceanic basalt, J. Geophys. Int., 145, 172-186. PDF
Pacific Ocean
Christensen, N. I. (1970), Compressional wave velocities in basalts from the Juan de Fuca Ridge, J. Geophys. Res., 75, 2773-2776. PDF
Christensen, N. I. (1972), Compressional and shear wave velocities at pressure to 10 kilobars for basalts from the East Pacific Rise, Geophys. J.R. Astr. Soc., 28, 425-429. PDF
Christensen, N. I. (1973), Compressional and shear wave velocities in basaltic rocks, Deep Sea Drilling Project, Leg 16, in Initial Reports of the Deep Sea Drilling Project, Vol. XVI, edited by T. H. van Andel, G. R. Heath, et al., pp. 647-650, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N. I. (1973), Elastic wave velocities and moduli of basalts, Deep Sea Drilling Project, Leg 19, Initial Reports of the Deep Sea Drilling Project, Vol. 19, edited by J. S. Creager, D. W. Scholl, et al., pp. 657-659, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Salisbury, M. H., and N. I. Christensen (1973), Progressive weathering of submarine basalt with age: further evidence of seafloor spreading, Geology, 1, 63-64. PDF
Christensen, N. I., and M. H. Salisbury (1973), Velocities, elastic moduli and weathering age-relations for Pacific layer 2 basalts, Earth Planet. Sci. Lett., 19, 461-470. PDF
Christensen, N. I. (1973), D. M. Fountain, and R. J. Stewart, Oceanic crustal basement: a comparison of seismic properties of DSDP basalts and consolidated sediments, Mar. Geol., 15, 215-226. PDF
Christensen, N. I., R. L. Carlson, M. H. Salisbury, and D. M. Fountain (1975), Elastic wave velocities in volcanic and plutonic rocks recovered on DSDP Leg 31, in Initial Reports of the Deep Sea Drilling Project, Vol. XXXI, edited by D. E. Karig, J. C. Ingle, Jr. et al., pp. 607-610, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N. I., and M. H. Salisbury (1975), Structure and constitution of the lower oceanic crust, Rev. Geophys. Space Phys., 13, 57-86. PDF
Fountain, D. M., R. L. Carlson, M. H. Salisbury, and N. I. Christensen (1975), Possible lower crustal rocks recovered on Leg 31 by deep-sea drilling in the Philippine Sea, Mar. Geol., 19, M75-M80. PDF
Salisbury, M. H., and N. I. Christensen (1976), Sonic velocities and densities of basalts from the Nazca Plate, DSDP Leg 34, in Initial Reports of the Deep Sea Drilling Project, Vol. XXXIV, edited by R. S. Yeats, S. R. Hart, et al., pp. 543-546, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N. I. (1979), Compressional wave velocities in rocks at high temperatures and pressures, critical thermal gradients, and crustal low-velocity zones, J. Geophys. Res., 84, 6849-6857. PDF
Christensen, N. I., R. H. Wilkens, S. C. Blair, and R. L. Carlson (1980), Seismic velocities, densities, and elastic constants of volcanic breccias and basalt, DSDP Leg 59, in Initial Reports of the Deep Sea Drilling Project, Vol. LIX, edited by L. Kroenke, R. Scott, et al., pp. 515-518, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Carlson, R. L., N. I. Christensen, and R. H. Wilkens (1980), Acoustic properties of volcaniclastic sediments recovered from the floor of the Philippine Sea, DSDP Leg 59, in Initial Reports of the Deep Sea Drilling Project, Vol. LIX, edited by L. Kroenke, R. Scott, et al., pp. 519-522, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N. I., R. H. Wilkens, S. M. Lundquist, and J. P. Schultz (1981), Seismic properties of volcanic rocks from Hess Rise, in Initial Reports of the Deep Sea Drilling Project, Vol. LXII, edited by J. Thiede, T. L. Vallier, et al., pp. 1005-1007, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N. I., S. C. Blair, R. C. Prior, and J. P. Schultz (1982), Seismic velocities at elevated pressures of igneous rocks from the Mariana Trough and fore-arc region, Deep Sea Drilling Project Leg 60, in Initial Reports of the Deep Sea Drilling Project, 60, edited by D. M. Hussong, S. Uyeda, et al., pp. 805-806, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N. I., and B. T. R. Lewis (1983), Physical properties of Leg 65 basalts, in Initial Reports of the Deep Sea Drilling Project, 65, edited by B. T. R. Lewis, P. Robinson, et al., pp. 693-696, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Wilkens, R. H., N. I. Christensen, and L. Slater (1983), High-pressure seismic studies of Leg 69 and 70 basalts, in Initial Reports of the Deep Sea Drilling Project, 69, edited by J. R. Cann, et al., pp. 683-686, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N. I. (1984), Pore pressure and oceanic crustal seismic structure, Geophys. J.R. Astr. Soc., 79, 411-424. PDF
Christensen, N. I., and M. H. Salisbury (1985), Seismic velocities, densities, and porosities of layer 2B and layer 2C basalts from Hole 504B, in Initial Reports of the Deep Sea Drilling Project,, 83, edited by R. N. Anderson, J. Honnorez, K. Becker, et al., pp. 367-370, U.S. Govt. Ptg. Ofc, Washington, DC. PDF
Salisbury, M. H., N. I. Christensen, K. Becker, and D. Moos (1985), The velocity structure of Layer 2 at Deep Sea Drilling Project Site 504 from logging and laboratory experiments, in Initial Reports of the Deep Sea Drilling Project, 83, edited by R. N. Anderson, J. Honnorez, K. Becker, et al., pp. 529-539, U.S. Govt. Ptg. Ofc, Washington, DC. PDF
Christensen, N. I. (1986), The influence of pore pressure on oceanic crustal seismic velocities, Jour. of Geodynamics, 5, 45-49. PDF
Christensen, N. I., and R. Ramananantoandro (1988), Permeability of the oceanic crust based on experimental studies of basalt permeability at elevated pressures, Tectonophysics, 149, 181-186. PDF
Christensen, N. I., W. W. Wepfer, and R. D. Baud (1989), Seismic properties of sheeted dikes from Hole 504B, ODP Leg 111, in Proceedings of the Ocean Drilling Program, Scientific Results, Vol. III, College Station, TX (Ocean Drilling Program), edited by Becker K., Sakai, H., et al., pp. 171-176. PDF
Wepfer, W. W., and N. I. Christensen (1990), Compressional wave attenuation in oceanic basalt, J. Geophys. Res., 95, 17, 431-17, 439. PDF
.Ballotti, D. M., N. I. Christensen, and K. Becker (1992), Seismic properties of serpentinized peridotite from the Mariana forearc, in Proceedings of the Ocean Drilling Program, Scientific Results, 125, College Station, TX (Ocean Drilling Program), edited by P. Fryer, J. A. Pearce, L. B. Stokking, et al., pp. 581-584. PDF
Wallick, B. P., N. I. Christensen, and D. M. Ballotti (1992), High-pressure velocity measurements of Jurassic Basalt, Leg 129, in Proceedings of the Ocean Drilling Program, Scientific Results, 129, College Station, TX (Ocean Drilling Program), edited by R. L. Larson, Y. Lancelot, et al., pp. 501-506. PDF
Wilkens, R. H., N. I. Christensen, and J. A. Collins (1993), Seismic properties and reflectivity of north Pacific Ocean cherts, in Proceedings of the Ocean Drilling Program, Scientific Results, 136, College Station, TX (Ocean Drilling Progam), edited by R. H. Wilkens, J. Firth, J. Bender, et al., pp. 99-104. PDF
Gröschel-Becker, H. M., H. W. Villinger, B. A. Konyukhov, G. J. Iturrino, and N. I. Christensen (1994), Seismic velocities of diabase and basalt from Middle Valley sills and flows, northern Juan de Fuca Ridge, in Proceedings of the Ocean Drilling Program, Scientific Results, 139, College Station, TX (Ocean Drilling Program), edited by M. J. Mottl, E. E. Davis, A. T. Fisher, and J. F. Slack, pp. 597-609. PDF
Iturrino, G. J., N. I. Christensen, K. Becker, et al. (1995), Physical properties and elastic constants of upper crustal rocks from core-log measurements in hole 504B, in Proceedings of the Ocean Drilling Program, Scientific Results, 137/140, College Station, TX (Ocean Drilling Progam), edited by J. Erzinger, K. Becker, H. J. B. Dick, and L. B. Stokking, pp. 273-291. PDF
Johnston, J. E., G. J. Fryer, and N. I. Christensen (1995), Velocity-porosity relationships of basalts from the East Pacific Rise, in Proceedings of the Ocean Drilling Program, Scientific Results, 142, College Station, TX (Ocean Drilling Program), edited by R. Batiza, M. A. Storms, and J. F. Allan, pp. 51-58. PDF
Iturrino, G. J., D. J. Miller, and N. I. Christensen (1996), Velocity behavior of lower crustal and upper mantle rocks from a fast–spreading ridge at Hess Deep, in Proceeding of the Ocean Drilling Program, Scientific Results, Vol. 147, College Station, TX (Ocean Drilling Program), edited by C. Mevel, K. M. Gillis, J. F. Allan, and P. S. Meyer, pp. 417-440. PDF
Salisbury, M. H., N. I. Christensen, and R. H. Wilkens (1996), Nature of the layer 2/3 transition from a comparison of laboratory and logging velocities and petrology at the base of Hole 504B, in Proceedings of the Ocean Drilling Program, Scientific Results, 148, College Station, TX (Ocean Dfrilling Program), edited by J. C. Alt, H. Kinoshita, L. B. Stokking, and P. J. Michael, pp. 409-413. PDF
Miller, D. J., G. J. Iturrino, and N. I. Christensen (1996), Geochemical and petrological constraints on velocity behavior of lower crustal and upper mantle rocks from the fast-spreading ridge at Hess Deep, in Proceedings of the Ocean Drilling Program, Scientific Results, 147, College Station, TX (Ocean Drilling Program), edited by C. Mevel, K. M. Gillis, J. F. Allan, and P. S. Meyer, pp. 447-487. PDF
Johnston, J. E., and N. I. Christensen (1997), Seismic properties of layer 2 basalts, Geophys. J.R. Astr. Soc., 128 (2), 285-300. PDF
Pan, Y., N. I. Christensen, R. Batiza, and T. L. Coleman (1998), Velocities of a natural mid-ocean ridge basalt glass, Tectonophysics, 290, 171-180. PDF
Tompkins, M. J., and N. I. Christensen (1999), Effects of pore pressure on compressional wave attenuation in a young oceanic basalt, Geophys. Res. Letters, 26, 1321-1325. PDF
Tompkins, M. J., and N. I. Christensen (2001), Ultrasonic P- and S-wave attenuation in oceanic basalt, J. Geophys. Int., 145, 172-186. PDF
Courtier A. M., D. J. Hart, and N. I. Christensen. (2004), Seismic properties of Leg 195 serpentinites and their geophysical implications, in Proceedings of the Ocean Drilling Program, Scientific Results, Volume 195, edited by M. H. Shirohara, Salisbury, and C. Richter, pp. 1-12. PDF
Indian Ocean
Christensen, N. I., D. M. Fountain, R. L. Carlson, and M. H. Salisbury (1974), Velocities and elastic moduli of volcanic and sedimentary rocks recovered on DSDP Leg 25, in Initial Reports of the Deep Sea Drilling Project, Vol. XXV, edited by E. S. W. Simpson, R. Schlich, et al., pp. 357-360, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N. I., M. H. Salisbury, D. M. Fountain, and R. L. Carlson (1974), Velocities of compressional and shear waves in DSDP Leg 27 basalts, in Initial Reports of the Deep Sea Drilling Project, Vol. XXVII, edited by J. J. Veevers, J. R. Heirtzler, et al., pp. 445-470, U.S. Govt. Ptg. Ofc., Washington, DC. PDF
Christensen, N. I., and M. H. Salisbury (1975), Structure and constitution of the lower oceanic crust, Rev. Geophys. Space Phys., 13, 57-86. PDF
Christensen, N. I. (1977), Seismic velocities and elastic moduli of igenous and metamorphic rocks from the Indian Ocean, in Indian Ocean Geology and Biostratigraphy, edited by J. R. Heirtzler, H. M. Bolli, et al., pp. 279-299, Am. Geophys. Un. PDF
Christensen, N. I. (1979), Compressional wave velocities in rocks at high temperatures and pressures, critical thermal gradients, and crustal low-velocity zones, J. Geophys. Res., 84, 6849-6857. PDF
Antarctic Ocean
Christensen, N. I. (1976), Seismic velocities, densities and elastic constants of basalts from DSDP Leg 35, in Initial Reports of the Deep Sea Drilling Project, Vol. XXV, edited by D. C. Hollister, C. Craddock, et al., pp. 335-340, U.S. Govt. Ptg. Ofc., Washington DC. PDF