Research News and Publications


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

2020 2019 2018

Arnaout B*, Lantigua K**, Mackenzie E*, McKinnell I, Maddin HC. 2021. Development of the chicken skull:  a complement to the external staging table of Hamburger and Hamilton (HH). Anatomical Record (Early View Online).

Bacha, R., Mungall, J. E., Toledo, C., Silva, A. 2021. Alkali element mobility as a vector for gold mineralization: An example from Central BrazilGeochemistry.

Christison BE, Gaidies F, Pineda-Munoz S, Evans AR, Gilbert MA, Fraser D (2021) Dietary niches of creodonts and carnivorans of the late Eocene Cypress Hills Formation. Journal of Mammalogy  doi:10.1093/jmammal/gyab123

Dix, G.R., Davis, D.W., Chadirji-Martinez, K., Marshal, D.D., Kendrick, J.L., Yakymchuk, C., and Sutcliffe, C.N., 2021. Hydrochemical impact of a mantle plume recorded by petrology, geochemistry, and U-Pb geochronology of a calcite vein within the Ottawa-Bonnechere graben, Ontario, Canada. Chemical Geology, v. 586, 120582.

Gaidies F, George FR (2021) The interfacial energy penalty to crystal growth close to equilibrium. Geology 49 doi:10.1130/G48715.1

Gaidies F, Heldwein OKA, Yogi MTAG, Cutts JA, Smit MA, Rice AHN (2021). Testing the equilibrium model: An example from the Caledonian Kalak Nappe Complex (Finnmark, Arctic Norway). Journal of Metamorphic Geology doi:

Gregory, B.R.B.G., Patterson, R.T., Galloway, J.M., Reinhardt, E.G., 2021. The impact of cyclical, multi-decadal to centennial climate variability on arsenic sequestration in lacustrine sediments. Palaeogeography, Palaeoclimatology, Palaeoecology. 565 (March): 110189, 14 pp.,

Jenkins, M.C.Mungall, J.E., Zientek, M.L., Costin, G., Yao, Z. (2021). Origin of the J-M Reef and Lower Banded series, Stillwater Complex, Montana, USA. Precambrian Research. 367: 106457.

MacLellan, L., Ernst, R., Bilali, H.E., Ghail, R., Bethell, E. 2021. Volcanic history of the Derceto large igneous province, Astkhik Planum, Venus. Earth-Science Reviews. DOI:

McFeeters B*, Evans DC, Ryan MPJ, Maddin HC. 2021. First Canadian occurrence of Maiasaura (Dinosauria, Hadrosauridae) from the Upper Cretaceous Oldman Formation of southern Alberta. Canadian Journal of Earth Sciences 58: 286-296.

Murphy, D. Rizo, H.,  O'Neil, J, Hepple, A., Wiemer, D., Kemp, T., Vervoort, J., 2021. Combined Sm-Nd, Lu-Hf, and 142Nd study of Paleoarchean basalts from the East Pilbara Terrane, Western Australia. Chemical Geology.

Riou, L., Nasser, N.A., Patterson, R.T., Gregory, B.R.B., Galloway, J.M., Falck, H. 2021. Lacustrine Arcellinida (Testate Lobose Amoebae) as bioindicators of arsenic concentration within the Yellowknife City Gold Project, Northwest Territories, Canada. Limnologica. 87 (March): 125862.

Vimpere, L., Del Piero, N., Shawwa, N.A., Beguelin, K., Kindler, P., Castelltort, S. 2021. Upper Pleistocene parabolic ridges (i.e. ‘chevrons’) from the Bahamas: Storm‐wave sediments or aeolian deposits? A quantitative approach. Sedimentology,68: 1255-1288.

Wasilewski, B., O'Neil, J., Rizo, H.,  Paquette, J.L. and Gannoun, A.M., 2021. Over one billion years of Archean crust evolution revealed by zircon U-Pb and Hf isotopes from the Saglek-Hebron complex. Precambrian Research, 359, p.106092.

Waterton, P., Mungall, J. E., Pearson, G. 2021. The komatiite-mantle platinum-group element paradox. Geochimica et Cosmochimica Acta. 214-242.

Williams, H.M., Matthews, S., Rizo, H. and Shorttle, O., 2021. Iron isotopes trace primordial magma ocean cumulates melting in Earth’s upper mantle. Science Advances, 7(11), p.eabc7394. DOI: 10.1126/sciadv.abc7394

Yao, Z., Mungall, J. E. & Jenkins, M. C. (2021). The Rustenburg Layered Suite formed as a stack of mush with transient magma chambers. Nature Communications. p. 1–13.

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