Patrick Ryall

Education

• B.Sc., Dalhousie University (1966)
• M.Sc., University of Alberta (1970)
  Development of Fabry-Perot laser interferometer to monitor surface distortion of a dielectric leading to high-voltage breakdown across a vacuum gap.
• Ph.D., Dalhousie University (1974)
  Variation of magnetic properties of submarine basalts in pillow lavas from the Mid-Atlantic Ridge and lava units from Bermuda. Experimental alteration of basalts in the laboratory to reproduce these variations.

Publications

• Ade-Hall, J.M., Aumento, F., Ryall, P.J.C., Gerstein, R.E., Brooke, J. and McKeown, D.L. 1973. The Mid-Atlantic Ridge near 45^oN.  XXI.  Magnetic results from basalt drill cores from the Median Valley.  Can. J. Earth Sci. 10, 679-696.
• Ryall, P.J.C. and Ade-Hall, J.M.  1975.  Laboratory induced self-reversal of thermoremanent magnetisation in pillow basalts.  Nature, 257, 117-118.
• Ryall, P.J.C. and Ade-Hall, J.M.  1975.  Radial variation of magnetic properties in submarine        pillow basalt.  Can. J. Earth Sci., 12, 1959-1969.
• Ade-Hall, J.M., Johnson, H.P. and Ryall, P.J.C.  1976.  Rock magnetism of basalts, Leg 34.  In Yeats, R.S., Hart, S.R. et al., Initial Reports of the Deep Sea Drilling Project, Volume 34, Washington (U.S. Government Printing Office), 459-468.
• Hall, J.M. and Ryall, P.J.C.  1977.  Palaeomagnetism of basement rocks, Leg. 37.  In Aumento,    F., Melson, W.G. et al., Initial Reports of the Deep Sea Drilling Project, Volume 37,Washington (U.S. Government Printing Office), 425-448.
• Hall, J.M. and Ryall, P.J.C.  1977.  Rock magnetism of basement rocks, Leg 37.  In Aumento, F., Melson, W.G. et al., Initial Reports of the Deep Sea Drilling Project, Volume 37,               Washington (U.S. Government Printing Office), 489-501.
• Hall, J.M. and Ryall, P.J.C. 1977.  Palaeomagnetism of sediments, Leg 37.  In Aumento, F., Melson, W.G. et al., Initial Reports of the Deep Sea Drilling Project, Volume 37, Washington (U.S. Government Printing Office), 531-536.
• Ryall, P.J.C., Hall, J.M., Clark, J., and Milligan, T.  1977.  Magnetization of oceanic crustal layer 2 - results and thoughts after DSDP Leg 37.  Can. J. Earth Sci. 14, 684-706.
• Ryall, P.J.C., Lew Tan Sin, Batchelor, B. and Samz, C.L.  1977.  A reconnaissance geophysical survey offshore from Kedah, west coast of Peninsular Malaysia.  Newsletter, Committee for Co-ordination of Offshore Prospecting (UNDP), 4, 69-73.
• Ryall, P.J.C., Lew Tan Sin, Batchelor, B. and Samz, C.L.  1978.  Near surface sediment structure and the search for tin, offshore Kedah.  Proc. 2nd Ann. Sem., Malaysian Society of Marine Sciences, Penang, 55-63.
• Ryall, P.J.C. and Hall, J.M.  1979.  Laboratory alteration of titanomagnetite in submarine pillow   lavas.  Can. J. Earth Sci. 16, 496-504.
• Ryall, P.J.C. and Hall, J.M.  1980.  Iron loss in titanomagnetites during low temperature oxidation.  J. Geomag. And Geoelectr., 32, 661-669.
• Ryall, P.J.C.  1980.  Drilling rock on the deep ocean floor.  Marine Technology Society Journal,    14, 5, 23-27.
• Ryall, P.J.C., Fowler, G.A. and Manchester, K.S.  1981.  An electric rock core drill for deep         ocean use.  Proceedings Offshore Technology Conference, Houston, 1981, 123-128.
• Ryall, P.J.C.  1982.  Some thoughts on the crustal structure of Peninsular Malaysia - results of a gravity traverse.  Bull. Geol. Soc. Malaysia, 15, 19-30.
• Ryall, P.J.C. and Hall, J.M.  1982.  Comment on `Curie temperature and lattice constant reference contours for synthetic titanomaghemites’ by Charles M. Keefer and Peter N. Shive.  J.  Geophys. Res. 87, 5391-5392.
• Ryall, P.J.C., Blanchard, M.-C., and Medioli, F.  1983.  A subsided island west of Flores, Azores, Can. J. Earth Sci. 20, 764-775.
• Ryall, P.J.C. and Hargrave, B.T.  1984.  Attraction of the Atlantic wreckfish (Polyprion Americanus) to an unbaited camera on the Mid-Atlantic Ridge.  Deep Sea Research, 31, 79-83.
• Walker, J.A., Ryall, P.J.C., Zentilli, M., Gibson, I.L. and Dostal, J.  1984.  The origin of compositional variation in basalts recovered by a submersible drill from Mount Glooscap, Mid-Atlantic Ridge at 36<sup>o</sup>25'N.  Can. J. Earth Sci. 21, 934-948.
• Wu, M., Ryall, P.J.C. and Bryan, J.  1986.  A magnetic survey of Explorer Seamount suggests      recent  spreading at the Explorer Trench.  Chinese Journal of Oceanology and Limnology, 4, 183-195.
• Wu, M. and Ryall, P.J.C.  1987.  An application of marine geomagnetic survey to shallow sea engineering geology.  Chinese Journal of Oceanology and Limnology, 5, 51-58.
• Ryall, P.J.C.  1987.  Remote drilling technology.  Journal of Marine Mining, 6, 149-160.
• Todd, B.J., Lewis, C.F.M. and Ryall, P.J.C.  1988.  Comparison of trends of iceberg scour marks with iceberg trajectories and evidence of paleocurrent trends on Saglek Bank, Northern Labrador Shelf.  Can. J. Earth Sci. 25, 1374-1383.
• Ryall, P.J.C. and Brogan, M.  1989.  Liscomb Complex: a gravity survey of the northern boundary.  In MacDonald, D.R. and Mills, K.A. (Eds.).  Mines and Minerals Branch, Report of Activities, 1989, Part A., 159-160.
• Ryall, P.J.C.  1990.  An electrical drill for deep-sea coring.   In McMurray, G.R.  (Ed), Gorda       Ridge:  A Seafloor Spreading Center in the United States Exclusive Economic Zone. Springer Verlag, N.Y., 201-210.
• Helgason, J., van Wagoner, N.A. and Ryall, P.J.C.  1990.  A study of the paleomagnetism of subglacial basalts, southwest Iceland:  a comparison with oceanic crust.  Geophysical Journal International, 103, 13-24.
• Ryall, P.J.C. (Ed.)  1992.  Proceedings of Down East `91: Learning Together - 1991 National Conference of Canadian Down Syndrome Society.  266 p.
• Ryall, P.J.C.  1993.  Dalhousie University & East Asia.  Proceedings of the Second Canada-Taiwan Higher Education Conference, 16-21 November 1992, Taipei, 165-172.
• Ryall, P.J.C. and Beattie, D.  1996. A gravity high in Darvel Bay.  Geol. Soc. Malaysia, Bulletin 39, 113-122.

Published Abstracts

• Ade-Hall, J.M., Ryall, P.J.C. and Gerstein, R.E.  1972.  Magnetic results from basalt drill cores    from MAR Median Valley at 45^oN.  53rd Annual Meeting of American Geophysical Union, EOS (Trans. Am. Geophys. Un.)  53, 355.
• Ryall, P.J.C. and Ade-Hall, J.M.  1973.  Magnetic properties and submarine weathering in pillow lavas.  54th Annual Meeting of American Geophysical Union, EOS (Trans. Am. Geophys. Un.) 54, 244.
• Kitazawa, K., Ryall, P.J.C. and Ade-Hall, J.M.  1973.  Widespread viscous magnetization in oceanic igneous rocks.  54th Annual Meeting of American Geophysical Union, EOS (Trans. Am. Geophys. Un.) 54, 256.
• Ryall, P.J.C.  1974.  Acquisition of self-reversed moments in pillow lavas.  55th Annual Meeting of American Geophysical Union, EOS (Trans. Am. Geophys. Un.) 55, 1112.
• Ade-Hall, J.M. and Ryall, P.J.C.  1975.  Geomagnetic field inclinations recorded by the upper part of layer 2 in the vicinity of the west of the Mid-Atlantic Ridge at 37^oN, EOS (Trans. Am. Geophys. Un.) 56, p.
• Hall, J.M., Clark, J., Milligan, T. and Ryall, P.J.C.  1976.  Magnetic and opaque petrological studies of oceanic layer 2.  Results from DSDP Leg 37.  Program, 1976 Annual Meeting Geological Association of Canada, p.
• Ryall, P.J.C.  1976.  Gravity traverse of peninsular Malaysia - preliminary results.  Abstracts of papers, discussion meeting: geology of South China Sea area including its continental rim. Geological Society of Malaysia.
• Ryall, P.J.C.  1979.  Iron loss in titanomagnetite during low-temperature oxidation.  60th Meeting of American Geophysical Union, EOS (Trans Am. Geophys. Un.), 60, 246.
• Ryall, P.J.C.  1980.  A gravity profile across peninsular Malaysia.  Warta Geolgi, 6, 34.
• Ryall, P.J.C., Blanchard, M.-C., Medioli, F.S. and Walls, C.  1980.  An investigation of a seamount near Flores, Azores.  Program, 1980 Annual Meeting Geological Association of Canada, 79.
• Ryall, P.J.C.  1981.  Results from rock cores obtained by an electric drill on the MAR.  Program   AGU Chapman Conference: Generation of the Oceanic Lithosphere.
• Ryall, P.J.C.  1982.  Sampling MORB’s using an electric rock core drill.  63rd Annual Meeting     of American geophysical Union, EOS (Trans. Am. Geophys. Un.) 63, 473.
• Peckenham, J.M., Ryall, P.J.C. and Schenk, P.E.  1982.  The volcanic evolution of Bermuda determined from deep-drilling and submersible observations, 63rd Annual Meeting of American Geophysical Union, EOS, (Trans. Am. Geophys. Un.), 63, 473.
• Chase, R.L., Johnson, H.P. and Ryall, P.J.C.  1982.  Geology and Explorer Seamount, N.E. Pacific.  EOS (Trans. Am. Geophys. Un.) 63, 1154.
• Wu, M. And Ryall, P.J.C.  1982.  A magnetic study of Explorer Seamount.  EOS (Trans. Am. Geophys. Un.) 63, 1154.
• Schenk, P.E. and Ryall, P.J.C.  1983.  Bermuda stratigraphy and carbonate/volcanic petrology seen from submersible.  N.E. Sect. Geol. Soc. Am.
• Ryall, P.J.C.  1987.  Deep-sea drilling technology.  Gorda Ridge Symposium Program.  Portland, Oregon.  21.
• Ryall, P.J.C.  1987.  Drilling sulphide mounds.  Proceedings, IEEE Conference (Oceans`87), 1037-1040.
• Ryall, P.J.C., Helgason, J., and Van Wagoner, N.  1988.  Uniformity of palaeomagnetic directions in pillow lavas formed in subglacial conditions in southwest Iceland.  Program, 1988 Annual Meeting, Geological Association of Canada, A107.
• Ryall, P.J.C. and Beattie, D.  1990.  A gravity high in Darvel Bay.  Annual Geological Conference '90, Geological Society of Malaysia, Program.
• Ryall, P.J.C. and Pearson, E.  1992.  Gravity in central Nova Scotia south from the Liscomb Complex.  1992 Colloquium Atlantic Geoscience Society, Fredericton, N.B.
• Ryall, P.J.C. 2003. The Geologist in the Classroom. 2003 Joint Meeting of North East Section of the Geological society of America and the Atlantic Geoscience Society, Halifax, N.S.
• White, M., Mosher, D.C., Ryall, P. and Wach, G.  2005. Late Cenozoic seismic stratigraphy of the Mohican Channel area, Scotian Slope.  2005 Colloquium, Atlantic Geoscience Society, Saint John, N.B.
• Xu, J.C.Q., Butt, S. and Ryall, P. 2008.  Seismic Rayleigh wave method for localizing and imaging subsurface cavities in various districts. SAGEEP 2008 Conference Program, Philadelphia, PA.

Students Supervised

Ph.D.

• 1991    Nkwate, Estella  (jointly with Matt Salisbury of Atlantic Geoscience Centre) - Gravity and Magnetic Interpretation of the Kapuskasing Structural Zone, Northwestern Ontario

• 1988    Todd, Brian (jointly with Charlotte Keen of Atlantic Geoscience Centre) - Offset margins on the Canadian Eastern Continental Shelf: Crustal Structure and Thermal Evolution

M.Sc.

• 1995    Oakey, Gordon (jointly with Ruth Jackson of Atlantic Geoscience Centre) - A Spatial Analysis of Geological Structures and Digital Topographic Lineaments: Ellesmere and Axel Heiberg Islands

• 1984    Stergiopoulos, Apostolos Basil (jointly with S. Srivastava of Atlantic Geoscience Centre) - Geophysical Crustal Studies off the Southwest Greenland Margin

• 1984    Todd, Brian (jointly with C.F.M. Lewis of Atlantic Geoscience Centre) - Iceberg Scouring on Saglek bank, Northern Labrador Shelf

• 1978    Lew, Tan Sin - Near surface sediment structure offshore Kedah

B.Sc.

• 2008    Archibald, Heather (jointly with Nick Culshaw) - Geological Interpretation of Gravity Anomalies in the Northwestern Grenville Province, Ontario

• 2003    Hawken, Jane Elizabeth (jointly with Keith Louden of Oceanography) - Seismic Structure of the Ocean Continent Boundary in the Newfoundland Basin from a Multichannel Seismic Line

• 2002    Bigg, Stephan (Committee member with Andrew MacRae and John Shimeld from AGC) - Latest Cretaceous-Tertiary Stratigraphy on the LaHave Platform, Offshore Nova Scotia, Canada

• Smith, Beverly (jointly with David Hansen of Civil Engineering) - Baseflow Contribution of the Unconfined Aquifer Supplying the Lower Reaches of the Clyburn Brook, Cape Breton Island, Nova Scotia

• 2000        MacDonald, Shannon (jointly with Heather Cross, private consultant)  - Long and Short Term Trends & Fluctuations of Groundwater Levels at Three Sites in Nova Scotia

• 1996    Creaser, Brian - Interpretation and Modelling of Gravity Data within the Meguma Terrane, Central Nova Scotia

• 1995    Duggan, James (jointly with Bob Courtney of Atlantic Geoscience Centre) - Structure of Bedrock Offshore from Point Aconi, Cape Breton Island, Nova Scotia

• 1989    Jennings, John - A Geophysical Study of the Liscomb Satellite Pluton

• 1988    Brogan, Mitchell - Gravity Modelling of the Liscomb “Satellite” Pluton

• 1986    Beattie, Dwayne - Gravity Modelling of a Mafic-Ultramafic Association Darvel Bay, Sabah, North Borneo

• 1986    Bryan, Joanne - Magnetic Modelling in the Davis Strait and Northern Labrador Sea

In addition, I have served on numerous supervisory committees, currently:

• Cullen, Janette, (PhD) - Gas hydrate and free gas concentrations off the Scotian Margin, Nova Scotia

And recently:

• Xu, Chao Qiang (PhD 2010) - Optimization of multichannel techniques for imaging localized anomalies in shallow investigations using Rayleigh waves

• Wu, Yue (Jack), (PhD 2007) - Crustal Structure of the Central Nova Scotia Margin and the Transition from Volcanic to Non-Volcanic Rifting off Eastern Canada

• White, Maureen (BSc 2005) - Late Cenozoic Seismic Stratigraphy of the Mohican Channel Area, Scotian Slope

• Lee, Sharon Kim Yee (MSc 2005) - Regional Fold Geometry of the Meguma Terrane, NS Using Geological and Geophysical Techniques with Applied Geomatics

• Deptuk, Mark (PhD 2003) - Post-Rift Geology of the Jeanne d’Arc Basin, with a focus on the Architecture and Evolution of Early Palaeogene Submarine Fans, and Insights from Modern Deep-Water Systems

• Gauley, Billie-Jo (MSc 2001) - Why are sediment failures localized on the Scotian Slope

Positions

• Associate Dean, Dalhousie University, Faculty of Science.
  Responsible for recruiting, enrollment management and international programmes.
  1998-2008
• Acting Dean,Faculty of Science, Dalhousie University
  !997-1998
• Assistant Dean (International), Dalhousie University
  Responsible for negotiating agreements in foreign countries (notably S.E. Asia and U.A.E.) to bring students to Dalhousie and then helping them get established at Dalhousie.
  1996-1998
• Coordinator for Malaysia, Dalhousie University
  Responsible for negotiating agreements with Malaysia to bring students to Dalhousie.
  1993-1996
• Chair, Earth Sciences, Dalhousie University
  1986-1996 (sabbatical 1989/1990)
• Associate Professor, Earth Sciences, Dalhousie University
  1984-2011
• Assistant Professor, Earth Sciences, Dalhousie University
  Teach Geophysics (introductory, exploration and marine). Research interests concentrate on magnetic properties of submarine basalt and development of techniques to survey and sample mid-ocean ridges. Supervise graduate students in various fields of geophysics.
  1981-1984
• Research Associate, Earth Sciences, Dalhousie University
  In charge of a programme to obtain samples of mid-ocean ridge rock through development of Bedford Institute rock-core drill. My work involved the development of the drill and associated hardware, cruise planning, analysis of geophysical data and magnetic study of rock samples.
  1978-1981
• Lecturer, School of Physics, Universiti Sains Malaysia
  Taught Geophysics (seismology, gravity, magnetics, heat-flow, etc.) and Introductory Geology. Set up Exploration Geophysics experiments for laboratories. Supervised an M.Sc. Student in offshore seismic reflection. Carried out engineering seismic survey for bridge foundations.
  1975-1978
• Killam Post-Doctoral Fellow, Dalhousie University, Department of Geology.
  Responsible for a programme of measurement and analysis of magnetic properties of basalt samples recovered during Leg 37 of Deep Sea Drilling Project.
  1974-1975
  
• Teaching Assistant, Dalhousie University, Department of Geology.
  Demonstration of equipment and interpretation of results for exploration geophysics course. Equipment included Hammer Seismic, Gravimeter, Resistivity, Electromagnetic Methods, Proton Magnetometer (both marine and land use).
  1970-1974
  
• Teaching Assistant, University of Alberta, Edmonton, Electrical Engineering Department.
  Instructed in third year electronics laboratory.
  1967-1970
  
• Research Technician, Atomic Energy of Canada Ltd., Chalk River, Ontario. Applied Physics Division.
  Helped develop measuring procedures and equipment for design studies of Alvarez and resonant cavity structures for a Linear Accelerator.
  1966-1967