Search Results - "Pehrsson, Sally J."

Two Neoarchean supercontinents revisited: The case for a Rae family of cratons by Pehrsson, Sally J., Berman, Robert G., Eglington, Bruce, Rainbird, Robert

“…► Revises a classic paper on supercontinent Kenorland, showing the original configuration is invalid. ► Using 2.55–2.3Ga orogens as a barcode, provides the…”
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The distinct metamorphic stages and structural styles of the 1.94–1.86 Ga Snowbird Orogen, Northwest Territories, Canada by Thiessen, Eric J., Gibson, H. Dan, Regis, Daniele, Pehrsson, Sally J., Ashley, Kyle T., Smit, Matthijs A.

“…Palaeoproterozoic orogenesis within the Archean southeastern Rae craton is related to the initial amalgamation of Laurentia. Characterizing the accompanying…”
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Deformation and extensional exhumation of 1.9 Ga high-pressure granulites along the Wholdaia Lake shear zone, south Rae Craton, Northwest Territories, Canada by Thiessen, Eric J, Gibson, H. Daniel, Regis, Daniele, Pehrsson, Sally J

“…The origin of high-pressure granulites in the south Rae craton and Snowbird tectonic zone (STZ) is highly enigmatic. Current models for their formation and…”
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Till geochemistry in west-central Manitoba; interpretation of provenance and mineralization based on glacial history and multivariate data analysis by McMartin, Isabelle, Dredge, Lynda A, Grunsky, Eric, Pehrsson, Sally J

“…Till geochemical datasets from archived samples in west-central Manitoba are interpreted using multivariate data analytical techniques such as principal…”
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Unraveling the western Churchill Province Paleoproterozoic gold metallotect; constraints from Re-Os arsenopyrite and U-Pb xenotime geochronology and LA-ICP-MS arsenopyrite trace element chemistry at the BIF-hosted Meliadine gold district, Nunavut, Canada by Lawley, Christopher J. M, Creaser, Robert A, Jackson, Simon E, Yang, Zhaoping, Davis, Bill J, Pehrsson, Sally J, Dubé, Benoît, Mercier-Langevin, Patrick, Vaillancourt, Denis

“…The gold endowment of the western Churchill Province is conventionally attributed to reworking and attendant metamorphism during the Trans-Hudson Orogeny…”
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Structural reconstruction of the Flin Flon volcanogenic massive sulfide mining district, Saskatchewan and Manitoba, Canada by Lafrance, Bruno, Gibson, Harold L, Pehrsson, Sally J, Schetselaar, Ernst, DeWolfe, Y. Michelle, Lewis, David

“…The Flin Flon mining district is part of a greenstone belt, the Flin Flon-Glennie Complex, in the Paleoproterozoic Trans-Hudson orogen. Its tectonic history…”
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3-D geologic modeling in the Flin Flon mining district, Trans-Hudson Orogen, Canada; evidence for polyphase imbrication of the Flin Flon-777-Callinan volcanogenic massive sulfide ore system by Schetselaar, Ernst, Pehrsson, Sally J, Devine, C, Lafrance, Bruno, White, Don J, Malinowski, M

“…Three-dimensional geologic modeling by integrated analysis and interpretation of drill core, 2-D and 3-D seismic, mine survey, and geologic map data provides…”
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Significance of pre-1860 Ma granitoid magmatism for crustal evolution and exploration targeting in the Flin Flon assemblage, Trans-Hudson Orogen, Canada by Whalen, Joseph J. B, Pehrsson, Sally J, Rayner, Nicole M

“…Granitoid plutonism, a significant contributor to orogenic evolution, is a commonly overlooked vector in exploration targeting. Using the Flin Flon-Glennie…”
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Drill targeting with 3-D seismics for volcanogenic massive sulfide exploration in the Flin Flon mining camp by White, Don J, Malinowski, M, Devine, C, Gilmore, Kelly, Schetselaar, Ernst, Pehrsson, Sally J

“…A 17-km2 3-D seismic survey was conducted in 2007 within the Flin Flon volcanogenic massive sulfide (VMS) mining camp as part of the Targeted Geoscience…”
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Petrogenesis and geodynamic evolution of the Paleoproterozoic (∼1878 Ma) Trout Lake volcanogenic massive sulfide deposit, Flin Flon, Manitoba, Canada by Ordóñez-Calderón, J. C, Lafrance, Bruno, Gibson, Harold L, Schwartz, T, Pehrsson, Sally J, Rayner, Nicole M

“…The Trout Lake deposit (1878 ± 1 Ma) is a rhyolite-hosted, bimodal-mafic, volcanogenic massive sulfide (VMS) deposit. It is one of the largest VMS deposits in…”
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The Kivalliq Igneous Suite: Anorogenic bimodal magmatism at 1.75Ga in the western Churchill Province, Canada by Peterson, Tony D., Scott, Jeffrey M.J., LeCheminant, Anthony N., Jefferson, Charles W., Pehrsson, Sally J.

“…•We define the 1.75Ga Kivalliq anorogenic suite of the western Churchill Province.•The bimodal suite (intrusive/extrusive) encompasses an area of…”
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A reappraisal of the Nonacho Basin (Northwest Territories, Canada): Record of post-orogenic collapse and marine flooding in the Palaeoproterozoic of the Rae Craton by Ielpi, Alessandro, Martel, Edith, Fischer, Beth, Pehrsson, Sally J., Tullio, Mia, Neil, Benjamin J.C.

“…•Reappraised sedimentology and stratigraphy of the Palaeoproterozoic Nonacho Basin.•Evidence of marine deposition first recognized in the Nonacho…”
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Provenance, stratigraphic and precise depositional age constraints for an outlier of the 1.9 to 1.8 Ga Nonacho Group, Rae craton, Northwest Territories, Canada by Neil, Benjamin J.C., Gibson, H. Daniel, Pehrsson, Sally J., Martel, Edith, Thiessen, Eric J., Crowley, James L.

“…•Detrital zircon geochronology of an upper Nonacho Group outlier, Rae craton, Canada.•A CA-TIMS maximum depositional age of 1901.0 ± 0.9 Ma for the upper…”
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Did plate tectonics shutdown in the Palaeoproterozoic? A view from the Siderian geologic record by Pehrsson, Sally J., Buchan, Kenneth L., Eglington, Bruce M., Berman, Robert M., Rainbird, Robert H.

“…The early Proterozoic Era between 2.45 and 2.2Ga is well known for a distinct minima in juvenile magmatism and detrital zircon abundance, an intriguing…”
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The Arrowsmith orogeny: Geochronological and thermobarometric constraints on its extent and tectonic setting in the Rae craton, with implications for pre-Nuna supercontinent reconstruction by Berman, R.G., Pehrsson, S., Davis, W.J., Ryan, J.J., Qui, H., Ashton, K.E.

“…► First geochronological and thermobarometric data for southern Boothia Peninsula (SBP), north-central Rae craton. ► First geochronological and…”
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Paleoproterozoic orogenesis during Nuna aggregation: A case study of reworking of the Rae craton, Woodburn Lake, Nunavut by Pehrsson, S.J., Berman, R.G., Davis, W.J.

“…•First thick-skinned Paleoproterozoic fold and thrust belt in mainland Rae craton.•First P–T and in situ SHRIMP monazite ages establishing nature and timing of…”
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A special issue on volcanogenic massive sulfide deposits of the Trans-Hudson Orogen; preface by Pehrsson, Sally J, Gibson, Harold L, Gilmore, Kelly

“…Paleoproterozoic volcanogenic massive sulfide (VMS) deposits are hosted in greenstone belts that formed during assembly of Earth's first supercontinent, Nuna,…”
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A domain-based digital summary of the evolution of the Palaeoproterozoic of North America and Greenland and associated unconformity-related uranium mineralization by Eglington, B.M., Pehrsson, S.J., Ansdell, K.M., Lescuyer, J.-L., Quirt, D., Milesi, J.-P., Brown, P.

“…► Time-space correlation chart for 67 domains across North America and Greenland. ► Illustrates lithostratigraphic evolution of Palaeoproterozoic Nuna. ►…”
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