Export 25 results:
Author Title [ Type(Desc)] Year
Filters: Author is Johnson, H P  [Clear All Filters]
Journal Article
M. J. Pruis and Johnson, H. P., “Age dependent porosity of young upper oceanic crust: Insights from seafloor gravity studies of recent volcanic eruptions”, Geophysical Research Letters, vol. 29, p. 1076, 2002.
R. N. Hey, Sinton, J. M., Kleinrock, M. C., Yonover, R. N., Macdonald, K. C., Miller, S. P., Searle, R. C., Christie, D. M., Atwater, T. M., Sleep, N. H., Johnson, H. P., and Neal, C. A., “Alvin investigation of an active propagating rift system, Galapagos 95.5 degrees west”, Marine Geophysical Researches, vol. 14, pp. 207–226, 1992.
M. A. Tivey and Johnson, H. P., “Alvin magnetic survey of zero-age crust: CoAxial segment eruption, Juan de Fuca Ridge”, Geophysical Research Letters, vol. 22, pp. 171–174, 1995.
H. P. Johnson and Embley, R. W., “Axial Seamount - An active ridge-axis volcano on the central Juan de Fuca Ridge”, Journal of Geophysical Research, vol. 95, pp. 12,612–689,696, 1990.
M. A. Tivey and Johnson, H. P., “Crustal magnetization reveals subsurface structure of Juan de Fuca Ridge hydrothermal fields”, Geology, vol. 30, pp. 979–982, 2002.
H. P. Johnson, Pruis, M. J., Van Patten, D., and Tivey, M. A., “Density and porosity of upper oceanic crust from seafloor gravity measurements”, Geophysical Research Letters, vol. 27, pp. 1053–1056, 2000.
L. A. Gilbert and Johnson, H. P., “Direct measurements of oceanic crustal density at the northern Juan de Fuca Ridge”, Geophysical Research Letters, vol. 26, pp. 3633–3636, 1999.
S. Q. Lang, Butterfield, D. A., Lilley, M. D., Johnson, H. P., and Hedges, J. I., “Dissolved organic carbon in ridge-axis and ridge-flank hydrothermal systems”, Geochimica et Cosmochimica Acta, vol. 70, pp. 3830–3842, 2006.
H. P. Johnson, Hutnak, M., Dziak, R. P., Fox, C. G., Urcuyo, I., Cowen, J. P., Nabelek, J., and Fisher, C. R., “Earthquake-induced changes in a hydrothermal system on the Juan de Fuca mid-ocean ridge”, Nature, vol. 407, pp. 174–177, 2000.
H. P. Johnson, Dziak, R. P., Fisher, C. R., Fox, C. G., and Pruis, M. J., “Earthquakes' impact on hydrothermal systems may be far-reaching”, EOS, Transactions, American Geophysical Union, vol. 82, pp. 233–236, 2001.
H. P. Johnson, Tivey, M. A., and Holmes, M. L., “A geophysical study of a new eruption on the axial seamount segment of the Juan de Fuca ridge”, EOS, Transactions, American Geophysical Union, vol. 74, p. 620, 1993.
M. A. Tivey and Johnson, H. P., “High resolution geophysical studies of oceanic hydrothermal systems”, Reviews in Aquatic Sciences, vol. 1, pp. 473–496, 1989.
W. W. Chadwick, Schreirer, D. S., Embley, R. W., and Johnson, H. P., “High-resolution bathymetric surveys using scanning sonars: Lava flow morphology, hydrothermal vent and geologic structure at recent eruption sites on the Juan de Fuca Ridge”, Journal of Geophysical Research, vol. 106, pp. 16,16–75,100, 2001.
M. A. Tivey, Johnson, H. P., Salmi, M. S., and Hutnak, M., “High-resolution near-bottom vector magnetic anomalies over Raven Hydrothermal Field, Endeavour Segment, Juan de Fuca Ridge”, Journal of Geophysical Research: Solid Earth, vol. 119, pp. 7389–7403, 2014.
H. P. Johnson, Tivey, M. A., Bjorklund, T. A., and Salmi, M. S., “Hydrothermal circulation within the Endeavour Segment, Juan de Fuca Ridge”, Geochemistry, Geophysics, Geosystems, vol. 11, p. Q05002, 2010.
N. A. Van Wagoner and Johnson, H. P., “Magnetic properties of three segments of the Mid-Atlantic Ridge at 37 degrees N: FAMOUS, Narrowgate, and AMAR; AMAR 2”, Journal of Geophysical Research, vol. 88, pp. 5065–5082, 1983.
H. P. Johnson and Tivey, M. A., “Magnetic properties of zero-age oceanic crust; a new submarine lava flow on the Juan de Fuca Ridge”, Geophysical Research Letters, vol. 22, pp. 175–178, 1995.
J. A. Huber, Johnson, H. P., Butterfield, D. A., and Baross, J. A., “Microbial life in ridge flank crustal fluids”, Environmental Microbiology, vol. 8, pp. 88–99, 2006.
H. P. Johnson, Becker, K., and Von Herzen, R. P., “Near-axis heat flow measurements on the northern Juan de Fuca Ridge: implications for fluid circulation in oceanic crust”, Geophysical Research Letters, vol. 20, pp. 1875–1878, 1993.
L. A. Gilbert, McDuff, R. E., and Johnson, H. P., “Porosity of the upper edifice of Axial Seamount”, Geology, vol. 35, pp. 49–52, 2007.
M. J. Pruis and Johnson, H. P., “Porosity of very young oceanic crust from sea floor gravity”, Geophysical Research Letters, vol. 25, pp. 1959–1962, 1998.
M. S. Salmi, Johnson, H. P., Tivey, M. A., and Hutnak, M., “Quantitative estimate of heat flow from a mid-ocean ridge axial valley, Raven field, Juan de Fuca Ridge: Observations and inferences”, Journal of Geophysical Research: Solid Earth, vol. 119, pp. 6841–6854, 2014.
H. P. Johnson, Baross, J. A., and Bjorklund, T. A., “On sampling the upper crustal reservoir of the NE Pacific Ocean”, Geofluids, vol. 6, pp. 251–271, 2006.
M. L. Holmes and Johnson, H. P., “Upper crustal densities derived from sea floor gravity measurements: Northern Juan De Fuca Ridge”, Geophysical Research Letters, vol. 20, pp. 1871–1874, 1993.
M. A. Tivey and Johnson, H. P., “Variations in oceanic crustal structure and the implications for the fine-scale magnetic anomaly signal”, Geophysical Research Letters, vol. 20, pp. 1879–1882, 1993.
Powered by Drupal