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Canada

Projects

• HuBLE – Hudson Bay Lithospheric Experiment
• North American Reference Frame (NAREF), Arctic tide gauge network, and Northern Energy Development/Mackenzie Valley Pipeline

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Project Name and Acronym:

HuBLE – Hudson Bay Lithospheric Experiment
http://www1.gly.bris.ac.uk/~jmk/HuBLE/home.html

Principal Contacts for Data

Isa Asudeh (seismic), Mike Kendall (seismic), Kristy Tiampo (GPS), Martin Connors (magnetic)

Project Scientists

Prof. David W.S. Eaton, University of Calgary, eatond@ucalgary.ca
Ms. Agnieszka Pawlack, University of Calgary, aepawlak@ucalgary.ca
Ms. Rebekka Bratfisch, University of Calgary, rbratfis@ucalgary.ca
Prof. Michael Kendall, University of Bristol, gljmk@bristol.ac.uk
Prof. George Helffrich, University of Bristol, George.helffrich@bristol.ac.uk
Dr. James Wookey, University of Bristol, j.wookey@bristol.ac.uk
Dr. Ian Bastow, University of Bristol, Ian.bastow@bristol.ac.uk
Mr. David Thompson, University of Bristol, dave.thompson@bristol.ac.uk
Dr. David Snyder, The Geological Survey of Canada, David.Snyder@NRCan-RNCan.gc.ca
Dr. Isa Asudeh, The Geological Survey of Canada, Isa.Asudeh@NRCan-RNCan.gc.ca
Dr. Martin Connors, Athabasca University, martinc@athabasca.ca
Prof. Andrew Frederiksen, University of Manitoba, Andrew_frederiksen@umanitoba.ca
Dr. Fiona Darbyshire, University of Quebec, Darbyshire.fiona_ann@uqam.ca
Dr. Kristy Tiampo, The University of Western Ontario, ktiampo@uwo.ca

Project Locations

Arctic and sub-arctic Canada (Hudson Bay)

Project Activities

• Deployment of seismic sensors at remote stations
  Stations have been installed at locations listed above and are recording 3-component seismic data, most since 2006. The instruments vary but most consist are Guralp CMG-ESP 120s seismometers, accompanied by Nanometrics Libra VSAT satellite system.
• Deployment of GPS observatories at remote stations
  Continuous GPS instruments have been installed in INUQ and IVKQ since the summer of 2008. These consist of Trimble NetRS receivers housed in local facilities and Zephyr antennas mounted on stainless steel pillars. Communication is via internet connection.
• Deployment of magnet observatories at remote stations

Principal Science Objectives

• Formation and evolution of cratonic mantle roots (tectosphere)
• Tectonic assembly of Laurentia (Trans-Hudson orogen)
• Origin of Paleozoic intracratonic basins
• Role of GIA for intraplate seismicity

Research Highlights

• Improvement of resolution in earth structure models
• Recording a seismic swarm in 2009 on Mansel Island

Published Papers

Eaton, D. and Darbyshire, F. (2010), Lithospheric architecture and tectonic evolution of the Hudson Bay region, Tectonophysics, Paper, vol. 480, pp. 1-22

Darbyshire, F. and Eaton, D., (2010), The lithospheric root beneath Hudson Bay, Canada from Rayleigh-wave dispersion: No clear seismological distinction between Archean and Proterozoic mantle, Lithos, Paper, in review

Thompson, D., Bastow, I., Helffrich, G., Kendall, J-M., Wookey, J, Snyder, D. and Eaton D. (2010), Precambrian Crustal Evolution: Seismic Constraints from the Canadian Shield, Earth and Planetary Science Letters, Paper, submitted

Pawlak, A., Eaton, D., Bastow, I., Kendall, J-M., Helffrich, G., Wookey, J. and Snyder, D. (2010), Crustal structure beneath Hudson Bay from ambient-noise tomography: Implications for basin formation, Geophysical Journal International, Paper, submitted

Abstracts

Eaton, D.W. and Darbyshire, F.A. (2009), Lithospheric architecture of the Hudson Bay region, Eos Trans. AGU, 90(52), Fall Meet. Suppl., Abstract T42B-02

Tiampo, K. F., Dwivedi, A., Kapp, G., Toya, Y, Darbyshire, F.A. and Eaton, D.W. (2009), Initial results from continuous GPS stations at Hudson Bay, Eos Trans. AGU, 90(52), Fall Meet. Suppl., Abstract T33C-1935.

Mareschal, J. Levy, F., and Jaupart, C.P., (2009), Thermal structure of the lithosphere in the Hudson Bay region, Eos Trans. AGU, 90(52), Fall Meet. Suppl., Abstract T42B-01.

Darbyshire, F A, Bastow, I D, Kendall, J M, Helffrich, G R, Wookey, J , Thompson, D, Snyder, D B, and Eaton, D W., (2009), Variations in Lithospheric Structure Across Northern Hudson Bay From Rayleigh Wave Array Tomography, Eos Trans. AGU, 90(52), Fall Meet. Suppl., Abstract T33C-1936.

Bastow, I D, Kendall, J M, Helffrich, G R, Wookey, J , Thompson, D, Snyder, D B, Eaton, D W., and Darbyshire, F A, (2009), HuBLE-UK, the Hudson Bay Lithospheric Experiment: Insights into the Formation of the Canadian Shield From Seismic Tomography and Shear-Wave Splitting, Eos Trans. AGU, 90(52), Fall Meet. Suppl., Abstract T33C-1934.

Thompson, D, Bastow, I D, Helffrich, G R, Kendall, J M, Wookey, J , Snyder, D B, and Eaton, D W. (2009), HuBLE-UK, the Hudson Bay Lithospheric Experiment: Insights into the Formation of the Canadian Shield From Seismic Tomography and Shear-Wave Splitting, Eos Trans. AGU, 90(52), Fall Meet. Suppl., Abstract T42B-04.

Pawlak, A. and Eaton, D. (2009), Structure of the Crust and Uppermost Mantle Beneath Hudson Bay Based on Ambient – Noise Tomography, Eos Trans., AGU, 90(22), Jt. Assem. Suppl., Abstract CG21A-08

Eaton, D. and Darbyshire, F. (2009), Lithospheric Architecture of the Hudson Bay Region, Eos Trans., AGU, 90(22), Jt. Assem. Suppl., Abstract CG73B-01

Dietrich, J., Hamblin, T., Lavoie, D., Duchesne, M. Lajeunesse, P. Zang, Z. (2009), Geological Setting and Petroleum Potential of the Paleozoic Hudson Platform, Northern Canada, Eos Trans., AGU, 90(22), Jt. Assem. Suppl., Abstract CG73B-02, Invited

Darbyshire, F. (2009), Upper Mantle Structure and Azimuthal Anisotropy Beneath Hudson Bay from Rayleigh Wave Tomography, Eos Trans., AGU, 90(22), Jt. Assem. Suppl., Abstract CG73B-06

Thompson, D., Helffrich, G., Bastow, I., Kendall, J., Wookey, J., Eaton D. and Snyder, D. (2009), Crustal Structure of the Hudson Bay Region: Insights from Receiver Function Analysis, Eos Trans., AGU, 90(22), Jt. Assem. Suppl., Abstract CG1A-07

Snyder, D. (2009), Mantle Lithosphere Structures of the Hudson Bay Region as Defined by Seismic Anisotropy, Eos Trans., AGU, 90(22), Jt. Assem. Suppl., Abstract CG73B-04, Invited

Bastow, I., Kendall, J., Helffrich, G., Wookey, J., Snyder, D., Eaton, D., Thompson, D. and Darbyshire, F. (2009), HuBLE-UK the Hudson Bay Lithospheric Experiment: Insights into the formation of the Canadian Shield from Seismic Tomography and Shear Wave Splitting, Eos Trans., AGU, 90(22), Jt. Assem. Suppl., Abstract CG73B-05

Toni, D. and Frederiksen, A. (2009), Investigating Anisotropy in the Upper Mantle Using Shear Wave, Splitting From the Manitoba Teleseismic Array, Eos Trans., AGU, 90(22), Jt. Assem. Suppl., Abstract CG21A-09

Kuiper, Y., Lin, S. and Jiang, D. (2009), Deformation partitioning in transpressional shear zones: an example from the Superior Boundary Zone, Manitoba, Canada, Eos Trans., AGU, 90(22), Jt. Assem. Suppl., Abstract GA22A-07

Darbyshire, F.A. (2008), Hudson Bay Lithospheric Experiment: Constraints on lithospheric thickness from surface waves, Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract U51B-0035

Bastow, I.D., Kendall, J., Helffrich, G., Wookey, J., Thompson, D., Eaton, D. and Snyder, D. (2008) HuBLE-UK, the Hudson Bay Lithospheric Experiment: Insights into the formation of the Canadian Shield, Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract U51B-0034

Pawlak, A. and Eaton, D.W. (2008) Structure of the crust and uppermost mantle beneath Hudson Bay based on ambient-noise tomography, Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract U51B-0036

Thompson, D.A., Helffrich, G., Bastow, I.D., Kandall, J., Wookey, J., Eaton, D. and Snyder, D. (2008), Discontinuity structure beneath the North American Craton and the signature of continental roots, Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract U51B-0037

Darbyshire, F.A. and Eaton, D.W. (2008), Structure of the lithosphere beneath Hudson Bay: Preliminary results from Rayleigh wave analysis, CGU, Spring Meet. Suppl., Abstract.

Eaton, D.W., Darbyshire, F.A., Pawlak, A. and the HuBLE working group (2008), Hudson Bay Lithospheric Experiment (HuBLE), CGU, Spring Meet. Suppl., Abstract.

Workshops

HuBLE Workshop at the 2009 AGU Joint Assembly

Institutes / Agencies that provided project support

Seis-UK –provide technical support
C-NGO- Canada-Nunavut Geoscience Office – provide logistical support
NSERC (Canada), NERC (UK), Geological Survey of Canada, University of Western Ontario

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Project Name and Acronym:

North American Reference Frame (NAREF), Arctic tide gauge network, and Northern Energy Development/Mackenzie Valley Pipeline
http://www.naref.org/

Principal Contacts for Data

Dr. Michael Craymer
Head, Reference Frames & Earth Dynamics
Geodetic Survey Division, Natural Resources Canada
615 Booth Street, Ottawa, ON, K1A 0E9, Canada

Project Scientists

Dr. Michael Craymer, Natural Resources Canada, Michael.Craymer@nrcan.gc.ca
Dr. Donald Forbes, Natural Resources Canada, DonaldL.Forbes@nrcan.gc.ca
Dr. Mike Piraszewski, Natural Resources Canada, Mike.Piraszewski@nrcan.gc.ca
Dr. Joseph Henton, Natural Resources Canada, Joe.Henton@nrcan.gc.ca
Ms. Terese Herron, Fisheries and Oceans Canada, Terese.Herron@dfo-mpo.gc.ca
Dr. Philip Marsh, Fisheries and Oceans Canada, Philip.Marsh@ec.gc.ca

Project Locations

Arctic Canada

Project Activities

Operation of existing GPS and tide gauge stations at remote Canadian Arctic sites. Evaluation of coastal erosion and flooding hazards. Baseline monitoring of natural subsidence in the Mackenzie Delta prior to gas withdrawal operations and assessment of flooding hazards in the Kendall Island Migratory Bird Sanctuary.

Principal Science Objectives

Crustal motion monitoring for reference frame maintenance and sea level monitoring for shipping and studies of climate change and flooding hazards. First direct measurement of natural subsidence in the Mackenzie Delta region.

Research Highlights

Alert is most northerly GPS and tide gauge station in the world. First direct measurements and modelling of crustal motion in the region. Data used in development of latest ICE-6G GIA model.

Published Papers, Abstracts

Craymer, M.R., J.A. Henton, M. Piraszewski. Transforming PPP results to different realizations of the NAD83 reference frame in Canada. Eos Transactions, AGU, 90(52), Fall Meeting Supplement, Abstract G11C-0659, 2009.

Bruyninx, C., Z. Altamimi, M. Becker, M. Craymer, L. Combrinck, A. Combrink, R. Fernandes, R. Govind, T. Herring, A. Kenyeres, B. King, C. Kreemer, D. Lavallee, J. Legrand, M. Moore, L. Sanchez, G. Sella, G. Woppelmann. IGS [IAG] Working Group "Regional Dense Velocity Fields": Objectives and Work Plan. Eos Transactions, AGU, 89(53), Fall Meeting Supplement, Abstract G33B-0689, 2008.

Craymer, M.R., J.A. Henton, M. Piraszewski. Predicting Present-Day Rates of Glacial Isostatic Adjustment Using a Smoothed GPS-Based Velocity Field for the Reconciliation of NAD83 Reference Frames in Canada. Eos Transactions, AGU, 89(53), Fall Meeting Supplement, Abstract G31A-0638, 2008.

Craymer, M.R., M. Piraszewski, J.A. Henton. The North American Reference Frame (NAREF) project to densify the ITRF in North America. Proceedings of ION GNSS 2007, Fort Worth, Texas, September 25-28, 2007.

Herring, T., M. Craymer, G. Sella, R. Snay, G. Blewitt, D. Argus, Y. Bock, E. Calais, J. Davis, M. Tamisiea. SNARF 2.0: A Regional Reference Frame for North America. Eos Transactions, AGU, 89(23), Joint Assembly Supplement, Abstract G31B-01, 2008.

Forbes, D.L., M. Craymer, J. Henton, T. Herron, S. Kokelj, E. Lapelle, G.K. Manson, P. Marsh, S. Mazzotti, M. Piraszewski, S.M. Solomon, D. Whalen. Combining Geological, Geodetic, and Tide-Gauge Data to Estimate Coastal Subsidence and Flooding Hazards in the Mackenzie Delta, Western Arctic Canada. Eos Transactions, AGU, 88(52), Fall Meeting Supplement, Abstract G51A-0136, 2007.

Henton, J., M. Craymer, E. Lapelle, M. Piraszewski. Contributions of the North American Reference Frame Working Group to the next realization of the Stable North American Reference Frame (SNARF). Eos Transactions, AGU, 88(52), Fall Meeting Supplement, Abstract G21B-0498, 2007.

Sella, G.F., S. Stein, T.H. Dixon, M. Craymer, T.S. James, S. Mazzotti, R.K. Dokka. Observation of glacial isostatic adjustment in "stable" North America with GPS. Geophysical Research Letters, Vol. 34, No. 2, L02306, 2007.

Craymer, M., J. Henton, M. Piraszewski. Sea Level Change and Vertical Crustal Motion in the Canadian Arctic Using GPS and Tide Gauges: Challenges and Preliminary Results. Eos Transactions, AGU, 87(52), Fall Meeting Supplement, Abstract G23B-1288, 2006.

Henton, J., M. Craymer, R. Ferland, H. Dragert, S. Mazzotti, D. Forbes. Crustal Motion and Deformation Monitoring of the Canadian Landmass. Geomatica, Vol. 60, No. 2, pp. 151-164, 2006.

Craymer, M., D.L. Forbes, J. Henton, E. Lapelle, M. Piraszewski, S.M. Solomon. Determining Sea Level Rise and Coastal Subsidence in the Canadian Arctic Using a Dense GPS Velocity Field for North America. Eos Transactions, AGU, 86(52), Fall Meeting Supplement, Abstract G11B-1203, 2005.

Institutes / Agencies that provided project support

Natural Resources Canada
Fisheries & Oceans Canada
Environment Canada
Canadian Space Agency
Canadian Foundation for Innovation
University of New Brunswick

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