Research News and Publications

News

The Neptune* in the Isotope Geochemistry and Geochronology Research Center (IGGRC) is up and running!

*Recently, the IGGRC added a Thermo-Finnigan NEPTUNE© multicollector inductively coupled-plasma-mass spectrometer (MC-ICP-MS) to their laboratory facilities. The MC-ICP-MS uses an argon-based plasma to ionize elemental species allowing the instrument to analyze a wide range of isotopes (6Li to 238U), including those elements TIMS cannot ionize (e.g., Hf). The recently acquired NEPTUNE© therefore dramatically expands the capabilities of the IGGRC.


 

Recent Publications

2019 2018

Adams GR, Mann A, Maddin HC. (2020). New embolomerous tetrapod material and a faunal overview of the Mississippian-aged Point Edward locality, Nova Scotia, Canada.  Canadian Journal of Earth Sciences. 57: 407-417.


Berman D, Maddin HC, Henrici AC, Sumida SS, Scott D, Reisz RR. (2020). New primitive caseid (Synapsida, Caseasauria) from the Early Permian of Germany. Annals of the Carnegie Museum. 89: 43-75.


Cockburn, C.F., Gregory, B.R.B., Nasser, N.A., Patterson, R.T. (2020). Intra-lake Arcellinida (testate lobose amoebae)response to winter de-icing contamination in an eastern Canada road-side ‘SaltBelt’ lake. Microbial Ecology.


Davies, M.A., Schröder-Adams, C.J., Herrle, J.O., Hülse, P., Schneider, S., 2020. Bottom water redox conditions and benthic foraminiferal morphogroup response in the Late Cretaceous Sverdrup Basin, Arctic Canada: Implications for Oceanic Anoxic Event 3. Cretaceous Research, https://doi.org/10.1016/j.cretres.2020.104449.


Davey, S., Vuollo, J., Cousens, B., Ernst, R., Bleeker, W., and Kamo, S., 2020.  Archean block rotation in Western Karelia: resolving dyke swarm patterns in metacraton Karelia-Kola for a refined paleogeographic reconstruction of supercraton Superia.  Lithos, doi: 10.1016/j.lithos.2020.105553. 


Dudgeon TW, Maddin HC, Evans DC, Mallon JC. (2020). Computed tomography analysis of the cranium of Champsosaurs and implications for the choristoderan neomorphic ossification. Journal of Anatomy. 236: 630-659.


Doucet, L., Li, Z-X., Ernst, R., Kirscher, U., el Dien, H.G., Mitchell, R.N. (2020) Coupled supercontinent-mantle plume events evidenced by oceanic plume record. Geology, v. 48, p. 159-163.


Ernst, R.E., Rodygin, S.A., Grinev, O.M. (2020) Age Correlation of Large Igneous Provinces with Devonian biotic crises. Global and Planetary Change, v. 185, 103097.


Ernst, R.E. (2020) Large Igneous Provinces.  In: Alderton, D.  and Elias, S. (eds.) Encyclopedia of Geology, Second Edition., Elsevier.


Ernst, R.E., Bond, D.P.G., Zhang, X-H. (2020) Influence of Large Igneous Provinces, Chapter 12 in Gradstein, F., Ogg, J.G., Schmitz, M.D., Ogg, G.M. (eds.)  Geological Time-Scale 2020. Elsevier.


Gaidies F (2020) Disequilibrium microstructures of metamorphic rocks. In: Elias S, Alderton D (eds) Encyclopedia of Geology, 2e. Elsevier, Amsterdam. DOI:10.1016/B978-0-08-102908-4.00001-1.


Gaidies F, Morneau Y, Petts D, Jackson SE, Zagorevski A, Ryan JJ (2020) Major and trace element mapping of garnet: Unraveling the conditions, timing and rates of metamorphism of the Snowcap assemblage, west-central Yukon. Journal of Metamorphic Geology. DOI:10.1111/JMG.12562.


George F, Gaidies F (2020) Simultaneous operation of opposing reaction mechanisms: The influence of matrix heterogeneity on post‐kinematic garnet crystallization in an inverted metamorphic sequence. Journal of Metamorphic Geology. DOI:https://doi.org/10.1111/JMG.12539.


Griffiths M.Pugin A., Motazedian D., 2020, Estimating local slope in the time-frequency domain: velocity-independent seismic imaging in the near-surface, Geophysics, DOI: 10.1190/geo2019-0753.1


Kastek, N., Mungall, J.E., Ernst, R.E., Cousens, B.L. (2020) Geochemistry of the Roberts Lake Syncline mafic lavas (NE Superior craton): Comparison with Paleoproterozoic volcanic sequences of the Cape Smith belt and the Labrador Trough. Lithos, 366–367, 105545.


Mohammadi, N., Lentz, D., McFarlane, C., and Cousens, B., 2020.  Geochemistry and petrochemical aspects of the highly evolved Sn-W-Mo-bearing Mount Douglas Granite, New Brunswick, Canada: implications for origin and mineralization.  Ore Geology Reviews 117, 103266.


Motazedian D., Torabi H., Hunter J.A., Crow H.L., Pyne M., 2020, Seismic Site Period Studies for Nonlinear Soil in the City of Ottawa, Canada, Journal of Soil Dynamics and Earthquake Engineering, DOI: 10.1016/j.soildyn.2020.106205


Nasser, N.A., Patterson. R.T., Galloway, J.M., Falck, H. (2020). Intra-lake response of Arcellinida (testatelobose amoebae) to gold mining-derived arsenic contamination in northern Canada: Implications for environmental monitoring. PeerJ. 8:e9054.


Nasser, N.A., Patterson, R.T., Roe, H.M., Galloway, J.M., Falck, H., Sanei, H. (2020). Use of Arcellinida (testate lobose amoebae) Arsenic tolerance limits as a novel tool for biomonitoring Arsenic contamination in lakes. Ecological Indicators. 113: 106177.


Nasser, N.A., Gregory, R.B., Steele, R.E., Patterson, R.T., Galloway, J.M. (2020). Behind the organic veil: assessing the impact of chemical deflocculation on organic content reduction and lacustrine Arcellinida (testate amoebae) analysis. Microbial Ecology. 79: 443-458.


Omidianfar, S., Rahgoshay, M., Monsef, I., Zheng, J., Cousens, B., and Chen, M., 2020.  The Eocene to Oligocene post-collisional granitoids of eastern Iran magmatic belt: Constraints from zircon U-Pb geochronology and Sr-Nd isotope geochemistry.  International Geology Review, doi:  10.1080/00206814.2020.1716272.


Oruche, N.K., and Dix, G.R., 2020, Sequence Stratigraphy of a Middle to Upper Ordovician Foreland Succession (Ottawa Embayment, central Canada): Evidence for Tectonic Control on Sequence Architecture along Southern Laurentia. Basin Research. doi: 10.1111/bre.12495.


Paterson RS, Rybczynski N, Kohno N, Maddin HC. (2020). A total evidence phylogenetic analysis of pinniped phylogeny and the possibility of parallel evolution within a monophyletic framework. Frontiers in Ecology and Evolution. 7: 457.


Pelletier, N., Chetalat, J., Cousens, B., Zhang, S., Stepner, D., Muir, D., and Vermaire, J., 2020.  Lead contamination from gold mining in Yellowknife Bay (Northwest Territories), reconstructed using stable lead isotopes.  Environmental Pollution 259,113888, doi: 10.1016/j.envpol.2019.113888.


Radzevicius, S., Raczynski, P. and Whittingham, M. (2020). Lower Homerian (Silurian) Pristiograptus from the Zdanow section, Bardo Mountains (Sudetes, Poland) and their palaeobiogeographical implications. Bulletin of Geosciences. 95(2): 231-242.


Robb, S.J. Mungall, J.E. (2020). Testing emplacement models for the Rustenburg Layered Suite of the Bushveld Complex with numerical heat-flow models and plagioclase geospeedometry. Earth and Planetary Science Letters. 534: article 116084.


Ross, J.B., Ludwigson, G.A., Schröder-Adams, C.J., Suarez, M.B., 2020. High latitude meteoric δ¹⁸O compositions from the Cenomanian Bastion Ridge Formation, Axel Heiberg Island, Canadian Arctic Archipelago: A palaeoclimate proxy from the Sverdrup Basin. In Wagreich, M., Hart, M.B., Sames, B., Yilmaz, I.O. (Eds.), Cretaceous Climate Events and Short-Term Sea-Level Changes. Geological Society, London, Special Publication 498, https://doi.org/10.1144/SP498-2018-134.


Steele, R.E., Patterson, R.T., Hamilton, P.B., *Nasser, N.A., Roe, H.M. (2020). Assessment of FlowCam technology as a potentialtool for rapid semi-automatic analysis of lacustrine Arcellinida (testatelobose amoebae). Environmental Technology & Innovation. 17: 100580.


Timmermans, A.C., Cousens, B.L., and Henry, C.D., 2020.  Geochemical Study of Cenozoic Mafic Volcanism in the West-Central Great Basin, Western Nevada and the Ancestral Cascades Arc, California.  Geosphere 16, doi: 10.1130 /GES01535.1.


Wang, Z. Jin, Z.J. Mungall, J.E. Xiao, X. (2020). Transport of coexisting Ni-Cu sulfide liquid and silicate melt in partially molten peridotite. Earth and Planetary Science Letters. 536: article 116162.


Whittingham, M., Radzevicius, S., and Spiridonov, A. (2020). Moving towards a better understanding of iterative evolution: an example from the late Silurian Monograptidae (Graptolithina) of the Baltic Basin. Palaeontology. 63(4): 629-649.


Youbi, N., Ernst, R.E., Söderlund, U., Boumehdi, M.A., Ait Lahna, A., Tassinari, C.C.G., El Moume, W. and Bensalah, M.K., 2020. The Central Iapetus magmatic province: An updated review and link with the ca. 580 Ma Gaskiers glaciation. In: Adatte, T., Bond, D.P.G., and Keller, G., (eds.) Mass Extinctions, Volcanism, and Impacts: New Developments. Geological Society of America Special Paper 544, doi: 10.1130/2020.2544(02).

 

 

 

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