Mapping Program

Applegate, T.B., Jr. (1990). Volcanic and structural morphology of the south flank of Axial Volcano, Juan de Fuca Ridge: Results from a Sea MARC I side-scan sonar survey, Journal of Geophysical Research, 95: 12,765-12,783.

Applegate, T.B., Jr., and R.W. Embley (1992). Submarine tumuli and inflated tube-fed lava flows on Axial Volcano, Juan de Fuca Ridge, Bulletin of Volcanology, 54: 447-458.

Atwater, T. and J. Severinghaus (1989). Tectonic maps of the northeast Pacific. In: The eastern Pacific Ocean and Hawaii, edited by E.L. Winterer et al., Geological Society of America, Geology of North America, N: 15-20.

Baker, E.T., (1994). A 6-year time series of hydrothermal plumes over the Cleft segment of the Juan de Fuca Ridge, Journal of Geophysical Research, 99: 4889-4904.

Chadwick, W.W., Jr., D.S. Scheirer, R.W. Embley, and H. Paul Johnson (2001). High-resolution bathymetric surveys using scanning sonars: Lava morphology, hydrothermal vents, and geologic structure at recent eruption sites on the Juan de Fuca Ridge, Journal of Geophysical Research, 106: 16,075-16,099.

Chadwick, W.W., Jr., R.W. Embley, and C.G. Fox (1991). Evidence for volcanic eruption on the southern Juan de Fuca Ridge between 1981 and 1987, Nature, 350: 416-418.

Chadwick, W.W. Jr., R.W. Embley, T.M. Shank (1998). The 1996 Gorda Ridge eruption: geologic mapping, sidescan sonar, and SeaBeam comparison results, Deep Sea Research II, 45: 2547-2569.

Clague, D.A., J.R. Reynolds, and A.S. Davis (2000). Near-ridge seamount chains in the northeastern Pacific Ocean, Journal of Geophysical Research, 105: 16,541-16,561.

Clague, D.A. and M.L. Holmes (1987). Geology, petrology, and mineral potential of the Gorda Ridge. In: Geology and resource Potential of the Continental Margin of Western North America and Adjacent Ocean Basins—Beaufort Sea to Baja California, edited by D.W. Scholl, A. Grantz, and J.G. Vedder, Circum-Pacific Council for Energy and Mineral Resources, Earth Science Series, Houston, TX, 563-580.

Clague, D.A. and P.A. Rona (1990). Geology of the GR14 site on northern Gorda Ridge. In: Gorda Ridge: A Seafloor Spreading Center in the U.S. Exclusive Economic Zone, edited by G.R. McMurray, Springer-Verlag, New York, 31-50.

Collier, R.W., S.H. Holbrook, and J.M. Robbins (1986). Studies of trace metals and active hydrothermal venting on the Gorda Ridge, Oregon Department of Geology and Mineral Industries, Report 0-86-13: 36 pp.

Cowen, J.P., M.A. Bertram, E.T.  Baker, R.A. Feely, G.J. Massoth, and M. Summit (1998). Geomicrobial transformation of manganese in Gorda Ridge event plumes, Deep-Sea Research II, 45: 2,713-2,737.

Dauteuil, O. (1995). Fault pattern from SeaBeam processing: The western part of the Blanco Fracture Zone (NE Pacific), Marine Geophysical Researches, 17: 17-35.

Davis, A.S. and D.A. Clague, (1987). Geochemistry, mineralogy, and petrogenesis of basalt from the Gorda Ridge, Journal of Geophysical Research, 92: 10,467-10,483.

Davis, A.S., and D.A. Clague (1990). Gabbroic xenoliths from the northern Gorda Ridge: Implications for magma chamber processes under slow spreading centers, Journal of Geophysical Research, 95: 10,885-10,905.

Davis, A.S., and D.A. Clague (2000). Seamount structure and petrology of basalts from the President Jackson Seamounts, northern Gorda Ridge: magmatic relationship between on- and off-axis volcanism, Journal of Geophysical Research, 105: 27, 956.

Davis, A.S., D.A. Clague, and W.F. Friesen. (1994). Petrology and mineral chemistry of basalt from Escanaba Trough, southern Gorda Ridge, U.S. Geological Survey Bulletin, 2022: 153-170.

Davis, A.S., D.A. Clague, W.A. Bohrson, G.B. Dalrymple, and H.G. Greene (2002). Seamounts at the Continental Margin of California: A Different Kind of Oceanic Intra-Plate Volcanism, Geological Society of America Bulletin.

Davis, A.S., D.A. Clague, and W.M. White (1998). Geochemistry of basalt from Escanaba Trough: Evidence for sediment contamination, Journal of Petrology, 39: 841-858.

Davis, A.S., L.B. Gray, and D.A. Clague (1998). Non-hotspot ocean island volcanoes: examples from the central and NE Pacific Ocean. In: Evolution of Ocean Island Volcanoes, Geological Society of America, Penrose Conference Series, Galapagos, Ecuador, p.27.

Delaney, J.R., H.P. Johnson, and J.L. Karsten (1981). The Juan de Fuca ridge-hotspot-propagating rift system: New tectonic, geochemical, and magnetic data, Journal of Geophysical Research, 86: 11,747-11,750.

Embley, R.W. and D.S. Wilson (1992). Morphology of the Blanco Transform Fault Zone—NE Pacific: Implications for its tectonic evolution, Marine Geophysical Researches, 14: 25-45.

Embley, R.W., K.M. Murphy, and C.G. Fox (1990). High-resolution studies of the summit of Axial Volcano, Journal of Geophysical Research, 95: 12,785-12,812.

Embley, R.W., S.G. Merle, R.S. Yeats, C. Goldfinger, J. Reynolds, and D.A. Clague (in press). 
A Forearc Section of the Cascadia Subduction Zone at Heceta Bank off Oregon Revealed by High Resolution Imagery: Extension of Geologic Mapping to the Continental Shelf, Marine Geology.

Embley, R.W., W. Chadwick, M.R. Perfit, and E.T. Baker (1991).Geology of the northern Cleft segment, Juan de Fuca Ridge: Recent lava flows, sea-floor spreading, and the formation of megaplumes, Geology, 1:, 771-775.

Embley, R.W., and W.W. Chadwick, Jr. (1994). Volcanic and hydrothermal processes on the southern Juan de Fuca Ridge, Journal of Geophysical Research, 99: 4741-4760.

Embley, R.W., W.W. Chadwick, Jr., D. Clague, and D. Stakes (1999). 1998 Eruption of Axial Volcano: Multibeam anomalies and seafloor observations, Geophysical Research Letters, 26: 3425-3428.

EEZ-Scan 84 Scientific Staff (1988). Physiography of the western United States Exclusive Economic Zone, Geology, 16: 131-134.

EEZ-Scan 84 Scientific Staff (1986). Atlas of the Exclusive Economic Zone, Western Conterminous United States, U.S. Geological  Survey Miscellaneous Investigations Series I-1792, 152 pp.

Fisk, M.R., and K.J. Howard, Geology and Geophysics of Gorda Ridge (1987). In: Gorda Ridge: A Seafloor Spreading Center in the U.S. Exclusive Economic Zone, edited by G. R. McMurray, Springer-Verlag, New York, 3-17.

Fisk, M.R., R.A. Duncan, C.A. Fox, and J.B. Witter (1993), Emergence and petrology of the Mendocino Ridge, Marine Geophysical Researches, 15: 283-296.

Fouquet, Y., R.A. Zierenberg, and D.J.Miller, et al. (1998). Introduction: Investigations of hydrothermal circulation and genesis of massive sulfide deposits at sediment-covered spreading centers at Middle Valley and Escanaba Trough, Proceedings of the Ocean Drilling Program, Initial Reports, 169: 7-16.

Fox, C.G., and R.P. Dziak (1998). Hydroacoustic detection of volcanic activity on the Gorda Ridge, February-March 1996, Deep Sea Research II, 45: 2513-2530.

Goldstein, S.J., M.T. Murrel, D.R. Janecky, J.R. Delaney, and D.A. Clague (1992). Geochronology and petrogenesis of MORB from the Juan de Fuca and Gorda Ridges by 238U- 230Th disequilibrium, Earth and Planetary Science Letters., 109: 255-272.

Hammond, S.R. (1997). Offset caldera and crater collapse on Juan de Fuca ridge-flank volcanoes, Bulletin of Volcanology, 58: 617-627.

Kappel, E.S. and W. Ryan (1986). Volcanic episodicity and a non-steady-state rift valley along northeast Pacific spreading centers: Evidence from SeaMARC I, Journal of Geophysical Research

Koski, R.A., D.A. Clague, and E. Oudin (1984). Mineralogy and chemistry of massive sulfide deposits from the Juan de Fuca Ridge, Geological Society of America Bulletin, 95: 930-945.

Kulm, L.D., E. Suess, J.C. Moore, B. Carson, B.T. Lewis, S.D. Ritger, D.C. Kadko, T.M. Thornburg, R.W. Embley, W.D. Rugh, G.J. Massoth, M.G. Langseth, G.R. Cochrane, and R.L. Scamman (1986).  Oregon subduction zone: Venting, fauna, and carbonates, Science, 231: 561-566.

Lonsdale, P. (1991) Structural patterns of the Pacific floor offshore of peninsular California. In: The gulf and peninsular province of the Californias: American Association of Petroleum Geologists Memoir, edited by Dauphin et al., 47: 87-125.

MacKay, M.E., (1995). Structural variation and landward vergence at the toe of the Oregon accretionary prism, Tectonics, 14: 1309-1320.

MacKay, M.E., G.F. Moore, G.R. Cochrane, J.C. Moore, and L.D. Kulm (1992). Landward vergence and oblique structural trends in the Oregon margin accretionary prism: Implications and effects on fluid flow, Earth and Planetary Science Letters, 109: 477-491.

Masson, D.G., D.A. Cacchione, and D.E. Drake (1988).Tectonic evolution of Gorda Ridge inferred from sidescan sonar images, Marine Geophysical Researches, 10: 191-204.

MBARI Mapping Team, (2001). Santa Barbara Multibeam Survey, Monterey Bay Aquarium Research Institute, Digital Data Series No. 4. (this is referenced for Rodriquez Seamount). 

MBARI Mapping Team, (2000). Monterey Bay Multibeam Survey, Monterey Bay Aquarium Research Institute, Digital Data Series No. 3. (this is referenced for Davidson Seamount). 

Morton, J.L., M.L. Holmes, and R.A. Koski (1987). Volcanism and massive sulfide formation at a sedimented spreading center, Escanaba Trough, Gorda Ridge, northeast Pacific Ocean, Geophysical Research Letters, 14: 769-772.

Morton, J.L., R.A. Zierenberg, and C.A. Reiss (1994). Geologic, hydrothermal, and biologic studies at Escanaba Trough: An Introduction, U.S. Geological Survey Bulletin, Report B 2022, 1-18.

Nielsen, R.L., J.Crum, R. Bourgeois, K. Hascall, L.M. Forsythe, M.R. Fisk, and D.M. Christie (1995). Melt inclusions in high-An plagioclase from the Gorda Ridge: An example of the local diversity of MORB parent magmas, Contributions to Mineralogy Petrology, 122: 34-50.

Nittrouer, C.A., ed. (1999). The Formation of Sedimentary Strata on Continental Margins. Marine Geology 154: 1-426.

Normark, W.R. and F. Serra (2001). Verical tectonics in northern Escnaba Trough as recorded by thick Quaternary turbidites, Journal of Geophysical Research, 106: 13,793-13,802.

Normark, W. R., J. L. Morton, and S. L. Ross (1987). Submersible observations along the southern Juan de Fuca Ridge: 1984 Alvin program, Journal of Geophysical Research92: 11,283-11,290.

Ritger, S., B. Carson, and E. Suess (1987). Methane-derived authigenic carbonates formed by subduction-induced pore-water expulsion along the Oregon/Washington margin, Geological Society of  America Bulletin, 98: 147-156.

Rona, P.A., and D.A. Clague (1989). Geologic controls of hydrothermal discharge on the northern Gorda Ridge, Geology, 17: 1097-1101.

Rona, P.A., R.P. Denlinger, M.R. Fisk, K.J. Howard,G.L. Taghon, K.D. Klitgord, J.S. McClain, G.R. McMurray, and J.C. Wiltshire (1990). Major off-axis hydrothermal activity on the northern Gorda Ridge, Geology, 18: 493-496.

Ross, S. L. and R.A. Zierenberg (1994). Volcanic geomorphology of the SESCA and NESCA sites, Escanaba Trough, U.S. Geological Survey Bulletin, 2022: 143-151.

Rubin, K.H., M.C. Smith, M.R. Perfit, D.M. Christie, and L.F. Sacks (1998). Geochronology and geochemistry of lavas from the 1996 North Gorda Ridge eruption, Deep-Sea Research II, 45: 2571-2597.

Smith, M.C., M.R. Perfit, and I.R. Jonasson (1994). Petrology and geochemistry of basalts from the southern Juan de Fuca Ridge: controls on the spatial and temporal evolution of mid-ocean ridge basalt, Journal of Geophysical Research99: 4787-4812.

Trehu, A.M., G. Lin, E. Maxwell, and C.A. Goldfinger (1995). A seismic reflection profile across the Cascadia subduction zone offshore central Oregon: New constraints on methane distribution and crustal structure, Journal of Geophysical Research, 100: 15,101-15,116.

Volpe, A.M., and S.J. Goldstein (1993) 226Ra -230Th disequilibrium in axial and off-axis mid-ocean ridge basalts, Geochimica et Cosmochimica Acta 57: 1233-1241.

Wilson, D.S., (1986). A kinematic model for the Gorda deformation zone as a diffuse southern boundary of the Juan de Fuca plate, Journal of Geophysical Research, 91: 10,259-10,269.

Wilson, D.S. (1989). Deformation of the so-called Gorda Plate, Journal of Geophysical Research
94: 3065-3075.

Zierenberg, R.A., P. Schiffman, I.R. Jonasson, R. Tosdal, W. Pickthorn, and J. McClain (1995). Alteration of basalt hyaloclastite at the off-axis Sea Cliff hydrothermal field, Gorda Ridge, Chemical Geology, 126: 77-99.

Zuffa, G.G., W.R. Normark, F. Serra, and C.A. Brunner (2000). Turbidite megabeds in an oceanic rift valley recoding jökulhlaups of Late Pleistocene glacial lakes of the western United States, Journal of  Geology, 108: 253-274.


Index Map Axial Volcano Gorda Ridge Cleft Segment Taney Seamounts
Guide, Gumdrop, Pioneer Seamounts Mendocino Fracture Zone President Jackson Seamount Davidson Seamount Vance Seamounts

Last updated:Mar. 28, 2011