Natural Resources

James Conliffe

Project Geologist
Mineral Deposits Section
Telephone: 709-729-4014
Fax: 709-729-4270

Survey Projects


  • Metallogenic studies of iron ore deposits in western Labrador, including origin of high grade DSO deposits and regional studies of taconite and metataconite deposits.

Former (Survey and Other)

  • Gold mineralization in central Newfoundland: perspectives from fluid inclusion, sulphur isotope and 40Ar/39Ar geochronology.
  • Paleoproterozoic Mississippi Valley Type Pb-Zn mineralisation in the Ramah Group, Northern Labrador.
  • Granite-hosted Mo-mineralization along the Appalachian-Caledonian Orogen.
  • The origin of hydrothermal dolomitizing fluids in western Newfoundland.
  • Fluid inclusion and diagenetic studies of potential hydrocarbon reservoirs in western Newfoundland.
  • Sedimentological, diagenetic and fluid history of reservoir sandstones from North Atlantic offshore basins (e.g. Hopedale Basin, Jeanne D’Arc Basin, North Sea, Porcupine Basin).

Research Interests

  • Economic geology, ore deposit genesis, geochemistry of hydrothermal systems.

Selected Publications

Conliffe, J.
2014: Geochemical Data from the Julienne Lake (NTS map area 23G/02) Iron Ore Deposit, Western Labrador. Newfoundland and Labrador Department of Natural Resources Geological Survey Open File 0323G/02/0298.

Conliffe, J.
2014: The Sawyer Lake iron-ore deposit, western Labrador: Potential for future high-grade iron-ore deposits in the Labrador Trough. Current Research. Newfoundland and Labrador Department of Natural Resources, Geological Survey, Report 14-1, pages 1-14.

Conliffe, J.
2013: The geological setting of the Julienne Lake iron-ore deposit, western Labrador. Current Research. Newfoundland and Labrador Department of Natural Resources, Geological Survey, Report 13-1, pages 83-98.

Conliffe, J., Wilton, D.H.C., Blamey, N.J.F., and Archibald, S.M.
2013: Paleoproterozoic Mississippi Valley Type Pb–Zn mineralization in the Ramah Group, Northern Labrador: Stable isotope, fluid inclusion and quantitative fluid inclusion gas analyses. Chemical Geology 362, 211-223; ISSN 0009-2541.

Sandeman, H.A., Wilton, D.H.C., Conliffe, J., Froude, T. and O'Driscoll, J.M.
2013: Geological setting, geochronological constraints and the nature of mineralization at the Mosquito Hill (Huxter Lane) gold deposit, central Newfoundland. Current Research. Newfoundland and Labrador Department of Natural Resources, Geological Survey, Report 13-1, pages 167-188.

Conliffe, J.
2012: Preliminary geological assessment of the Julienne Lake iron ore deposit, western Labrador. Geological Survey, Department of Natural Resources, Government of Newfoundland and Labrador Report, 22 pages. NLGS Geofile 023G/02/0284.

Conliffe, J., Kerr, A. and Hanchar, D.
2012: Iron ore. Government of Newfoundland and Labrador, Department of Natural Resources, Geological Survey, Mineral Commodities Series 7, 15 pages. NLGS Geofile NFLD/3184.

Conliffe J., Azmy K. and Greene M.
2012: Dolomitization of the lower Ordovician Catoche formation: Implications for hydrocarbon exploration in western Newfoundland. Marine and Petroleum Geology 30, 161–173; DOI: 10.1016/j.marpetgeo.2011.10.007.

Wright, A.J., Blamey, N.J.F., Conliffe, J., and Parnell, J.
2012: Origin of vein-graphite in Moine (Glenfinnan Group) rocks, NW Scotland, supported by the study of volatile gases in fluid-inclusions. Scottish Journal of Geology 48, 47-59; DOI: 10.1144/0036-9276/01-426.

Azmy, K. and Conliffe, J.
2010: Dolomitization of the lower St. George Group on the Northern Peninsula in western Newfoundland: implications for lateral distribution of porosity. Bulletin of Canadian Petroleum Geology 58(4), 1-14.

Conliffe, J., Azmy, K., Gleeson, S.A. and Lavoie, D.
2010: Fluids associated with hydrothermal dolomitization in St. George Group, western Newfoundland, Canada. Geofluids 10(2), 422-437; DOI: 10.1111/j.1468-8123.2010.00295.x.

Conliffe, J., Blamey, N.J.F., Feely, M., Parnell, J. and Ryder, A.G.
2010: Hydrocarbon migration in the Porcupine Basin, offshore Ireland: evidence from fluid inclusion studies. Petroleum Geoscience 16(1), 67-76; DOI: 10.1144/1354-079309-007.

Conliffe, J., Selby, D., Porter, S. and Feely, M.
2010: Re-Os molybdenite dates from the Ballachulish and Kilmelford Igneous Complexes (Scottish Highlands): Age constraints for late-Caledonian magmatism. Journal of the Geological Society, London 167(2), 297-302; DOI: 10.1144/0016-76492009-077.

Conliffe, J. and Feely, M.
2010: Fluid inclusions in Irish granite quartz: monitors of fluids trapped in the onshore Irish Massif. Earth and Environmental Science Transactions of the Royal Society of Edinburgh 101, 53-66; DOI: 10.1017/S1755691010009047.

Feely, M., Selby, D., Hunt, J. and Conliffe, J.
2010: Long-lived granite-related molybdenite mineralization at Connemara, western Irish Caledonides. Geological Magazine 147(6), 886-894; DOI: 10.1017/S0016756810000324.

Blamey, N.J.F., Conliffe, J., Parnell, J., Ryder, A.G. and Feely, M.
2009: Application of fluorescence lifetime measurements on single petroleum-bearing fluid inclusions to demonstrate multicharge history in petroleum reservoirs. Geofluids 9, 1-8.

Conliffe, J., Azmy, K., Knight, I. and Lavoie, D.
2009: Dolomitization of the Lower Ordovician Watts Bight Formation of the St. George Group, western Newfoundland: evidence of hydrothermal fluid alteration. Canadian Journal of Earth Sciences 46(4), 247–261.

Lindgren, P., Parnell, J., Norman, C., Mark, D.F., Baron, M., Ormö, J., Sturkell, E., Conliffe, J. and Fraser W.
2008: Formation of Uranium/thorium-rich bitumen nodules in the Lockne Impact Crater, Sweden: A mechanism for carbon concentration at impact sites. Meteoritics and Planetary Science 42, Nr 11, 1–8.

Selby, D., Conliffe, J., Crowley, Q.G. and Feely, M.
2008: Geochronology (Re-Os, U-Pb) & fluid inclusion studies of molybdenite mineralisation associated with the Shap, Skiddaw & Weardale Granites, UK. Applied Earth Science (Trans. Inst. Min. Metall. B) incorporating Proceedings of AusIMM 117, 11-28.

Feely, M., Selby, D., Conliffe J. and Judge M.
2007: Re-Os geochronology and fluid inclusion microthermometry of molybdenite mineralization in the late-Caledonian Omey Granite, western Ireland. Applied Earth Science (Trans. Inst. Min. Metall. B) incorporating Proceedings of AusIMM.

Conliffe, J. and Feely, M.
2006: Microthermometric characteristics of fluids associated with granite and greisen quartz and vein quartz and beryl from the Rosses Granite Complex, Donegal, NW Ireland. Journal of Geochemical Exploration 89, 73-77.

Feely, M., Conliffe, J., Faure, K. and Power, S.
2006: Fluid inclusion trails in granite quartz: evidence for low salinity aqueous fluid infiltration in the Oughterard granite, eastern Connemara. Irish Journal of Earth Sciences 24, 1-11.

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