Journal Articles (Earth and Atmospheric Sciences)
Items in this Collection
- 157Earth and Atmospheric Sciences, Department of
- 157Earth and Atmospheric Sciences, Department of/Journal Articles (Earth and Atmospheric Sciences)
- 2ERA General Collection
- 2ERA General Collection/Research Materials (ERA General)
- 1Physics, Department of
- 1Physics, Department of/Journal Articles (Physics)
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In situ oxidation of sulfide minerals supports widespread sulfate reducing bacteria in the deep subsurface of the Witwatersrand Basin (South Africa): Insights from multiple sulfur and oxygen isotopes
Download2022-01-01
Li, Long, Wei, Siwen, Lollar, Barbara Sherwood, Wing, Boswell, Bui, Thi H., Ono, Shuhei, Lau Vetter, Maggie C. Y., Onstott, Tullis C., Kieft, Thomas L., Borgonie, Gaetan, Linage-Alvarez, Borja, Kuloyo, Olukayode, van Heerden, Esta
Dissolved sulfate is a crucial electron acceptor for the subsurface biosphere, particularly for the living microbial ecosystems in the long-isolated (on the order of millions to billions of years) deep subsurface fracture waters in Precambrian cratons, e.g., in the Witwatersrand Basin of the...
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Application of Airborne, Laboratory, and Field Hyperspectral Methods to Mineral Exploration in the Canadian Arctic: Recognition and Characterization of Volcanogenic Massive Sulfide-Associated Hydrothermal Alteration in the Izok Lake Deposit Area, Nunavut, Canada
Download2022-02-28
Laakso, K.,, Rivard, B.,, Peter, J.M., White, H.P., Maloley, M., Harris, J., Rogge, D.
We have investigated the application of ground, laboratory, and airborne optical remote sensing methods for the detection of hydrothermal alteration zones associated with the Izok Lake volcanogenic massive sulfide (VMS) deposit in Nunavut, Canada. This bimodal-felsic Zn-Cu-Pb-Ag deposit is...
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Formation of mixed paragenesis diamonds during multistage growth – constraints from in situ δ 13C–δ 15N–[N] analyses of Koidu diamonds
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Lai, Mei Yan, Stachel, Thomas, Stern, Richard A., Hardman, Matthew F., Pearson, D. Graham, Harris, Jeff W.
Abstract Inclusion-bearing diamonds from the Koidu kimberlite complex, Sierra Leone (West African Craton) were analyzed in situ for carbon and nitrogen isotope compositions, nitrogen concentrations and nitrogen aggregation states. In a suite of 105 diamonds, 78% contain eclogitic mineral...
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Short-Wave Infrared Spectral and Geochemical Characteristics of Hydrothermal Alteration at the Archean Izok Lake Zn-Cu-Pb-Ag Volcanogenic Massive Sulfide Deposit, Nunavut, Canada: Application in Exploration Target Vectoring
Download2022-02-28
Laakso, K., Peter, J.M., Rivard, B., White, H.P.
Short-wave infrared (SWIR) field and laboratory spectra were used to identify and characterize hydrothermal alteration mineral chemical variability in host rocks proximal to the Izok Lake Zn-Cu-Pb-Ag volcanogenic massive sulfide (VMS) deposit in Nunavut, Canada. The deposit is hosted within a...
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Arctic cod (Boreogadus saida) hatching in the Hudson Bay system: Testing of the freshwater winter refuge hypothesis
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Schembri, Sarah, Deschepper, Inge, Myers, Paul G., Sirois, Pascal, Fortier, Louis, Bouchard, Caroline, Maps, Frederic
Buoyant Arctic cod (Boreogadus saida) eggs are found at the surface or at the ice-water interface in winter. While winter temperatures in saline waters fall below 0 degrees C, the temperature in areas affected by under-ice river plumes is slightly higher. Under-ice river plumes may therefore...
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An assessment of systems, agents, and institutions in building community resilience to climate change: A case study of Charlottetown, Canada
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Birchall, S. Jeff, MacDonald, Seghan, Bara, Nicklas N.
While climate change manifests itself as a global phenomenon, impacts are experienced most acutely at the local scale. As a result, the onus of responding to climate change impacts through planning policies and practice falls on local government decision-makers. This qualitative study, based in...
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Extreme High Greenland Blocking Index Leads to the Reversal of Davis and Nares Strait Net Transport Toward the Arctic Ocean
Download2021-01-01
Myers, Paul G., de al Guardia, Laura Castro, Fu, Chuanshuai, Gillard, Laura C., Grivault, Nathan, Hu, Xianmin, Lee, Craig M., Moore, G. W. K., Pennelly, Clark, Ribergaard, Mads Hvid, Romanski, Joy
Baffin Bay exports Arctic Water to the North Atlantic while receiving northward flowing Atlantic Water. Warm Atlantic Water has impacted the retreat of tidewater glaciers draining the Greenland Ice Sheet. Periods of enhanced Atlantic Water transport into Baffin Bay have been observed, but the...
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A baseline evaluation of oceanographic and sea ice conditions in the Hudson Bay Complex during 2016-2018
Download2021-01-01
Lukovich, Jennifer V., Jafarikhasragh, Shabnam, Tefs, A., Myers, Paul G., Sydor, K., Wong, K., Stroeve, Julienne C., Stadnyk, T. A., Babb, D., Barber, D. G.
In this paper, we examine sea surface temperatures (SSTs) and sea ice conditions in the Hudson Bay Complex as a baseline evaluation for the BaySys 2016-2018 field program time frame. Investigated in particular are spatiotemporal patterns in SST and sea ice state and dynamics, with rankings of the...
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2021-01-01
Stadler, Sophie L., Collins, Damian
The notion that Housing First (HF) is a human-rights based approach to housing some of society’s most vulnerable citizens is often alluded to in the literature, but seldom interrogated. In this paper, we examine whether HF in Alberta, Canada is practiced in a way that realizes the right to...
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2021-01-01
Pennelly, Clark, Myers, Paul G.
A numerical modeling sensitivity study is carried out within the Labrador Sea by varying the atmospheric conditions. From forcing NEMO simulations with five atmospheric products commonly used in ocean modeling (DFS5.2, ERA-Interim, CGRF, ERA5, and JRA55-do), we calculate the air–sea heat fluxes...