Duane C. Petts
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View article: The rise of lichens during the colonization of terrestrial environments
The rise of lichens during the colonization of terrestrial environments Open
The origin of terrestrial life and ecosystems fundamentally changed the biosphere. Lichens, symbiotic fungi-algae partnerships, are crucial to nutrient cycling and carbon fixation today, yet their evolutionary history during the evolution …
Syn- and Postdepositional Controls on the Composition of Pyrite and Pyrrhotite in the Windy Craggy Cu-Co Volcanogenic Massive Sulfide Deposit, British Columbia, Canada Open
Pyrite and pyrrhotite from the Windy Craggy volcanogenic massive sulfide (VMS) deposit, British Columbia, Canada, were investigated using combined in situ compositional mapping (by laser ablation-inductively coupled plasma-mass spectrometr…
Polyphase Metamorphism of the Northern Rae Craton (Baffin Island, Arctic Canada) and Trace Element Behaviour in Monazite: Insights From Phase Equilibria Modelling and Geochronology Open
Integrated field mapping, phase equilibria modelling and in situ U–Pb monazite geochronology from the northern margin of the Rae craton on Baffin Island document three metamorphic events during the Neoarchean to the middle Paleoproterozoic…
Microstructural control on the trace element distribution and Au concentration in pyrite nodules Open
The crystal growth history of an Au-rich sedimentary pyrite nodule from the Timmins-Porcupine Au camp, Ontario, Canada, has been investigated using Electron Backscattered Diffraction and Laser Ablation Inductively Coupled Plasma Mass Spect…
Circa 1.9 Ga Rae‐Hearne collision from Lu–Hf garnet chronology in eclogites Open
Canada's northern cratons record a complex poly‐metamorphic evolution in response to multiple orogenic events. The Snowbird Tectonic Zone (STZ), the principal suture between the Archean Rae and Hearne cratons, is a highly debated structure…
Formation of multistage garnet grains by fragmentation and overgrowth constrained by microstructural and microchemical mapping Open
Garnet is an exceptionally useful mineral for reconstructing the evolution of metamorphic rocks that have experienced multiple tectonic or thermal events. Understanding how garnet crystallizes and its mechanical behaviour, is important for…
Tracing Detrital Epidote Derived from Alteration Halos to Porphyry Cu Deposits in Glaciated Terrains: The Search for Covered Mineralization Open
Distal alteration related to porphyry Cu mineralization is typically characterized by an abundance of green minerals, such as epidote, tremolite, and chlorite, within the propylitic and sodic-calcic alteration zones and extends far outside…
Formation of multistage garnet grains by fragmentation and overgrowth constrained by microchemical and microstructural mapping Open
Garnet is an exceptionally useful mineral for reconstructing the evolution of metamorphic rocks that have experienced multiple tectonic or thermal events. Understanding how garnet crystallizes and its mechanical behaviour is important for …
Impact of deformation and metamorphism on sphalerite chemistry – Element mapping of sphalerite in carbonate-hosted Zn-Pb sulfide deposits of the Kootenay Arc, southern British Columbia, Canada and northeastern Washington, USA Open
Sphalerites from the Kootenay Arc in British Columbia and Washington State were selected to represent three types of carbonate-hosted massive sulfide deposits, including Mississippi Valley-type (MVT), Irish-type, and fracture-controlled re…
Crystallographic controlled exsolution and metal partitioning in magmatic sulfide deposits Open
Magmatic sulfide liquids are effective at concentrating a range of metals. Within magmatic sulfide systems pentlandite, an exsolution product of monosulfide solid solution (MSS), is the primary host of Ni, Co and significant concentrations…
View article: Evidence That Metal Particles in Cannabis Vape Liquids Limit Measurement Reproducibility
Evidence That Metal Particles in Cannabis Vape Liquids Limit Measurement Reproducibility Open
Cannabis vaping involves the vaporization of a cannabis vaping liquid or solid via a vaping accessory such as a vape pen constructed of various metals or other parts. An increasing number of reports advocate for expansion of the testing an…
Distribution of siderophile elements during sulphide fractionation within magmatic Ni-Cu-PGE systems: A LA-ICP-MS investigation of the Crystal Lake Intrusion, 1.1 Ga Midcontinent rift Open
Within the magmatic pyrrhotite-pentlandite-chalcopyrite assemblage, which is ubiquitous of many Ni-Cu-PGE deposits, the spatial distribution of PGEs and semi-metals during both sulphide fractionation and low temperature alteration is not w…
LA-ICP-MS Mapping of Barren Sandstone from the Proterozoic Athabasca Basin (Canada)—Footprint of U- and REE-Rich Basinal Fluids Open
The Proterozoic Athabasca Basin hosts a large number of high-grade, large-tonnage unconformity-related uranium (U) deposits, many of which are also enriched in rare earth elements (REE). The basin also contains hydrothermal REE mineralizat…
Evaluation of magnetite as an indicator mineral for porphyry Cu exploration: a case study using bedrock and stream sediments at the Casino porphyry Cu–Au–Mo deposit, Yukon, Canada Open
The trace element composition of detrital magnetite grains recovered from six local streams around the Casino high-grade porphyry Cu–Au–Mo deposit, west-central Yukon, is compared with igneous and magmatic-hydrothermal magnetite recovered …
Olivine xenocrysts reveal carbonated mid-lithosphere in the northern Slave craton Open
The cold, rigid, and melt-depleted mantle underlying Archean cratons plays an important role in the preservation of the overlying continental crust and is one of the main sources of diamonds. However, with the possible exception of rare ea…
Mineral chemistry-driven protocol to unravel the complex paragenesis of the Klaza (Yukon, Canada) superimposed porphyry-epithermal system Open
The distribution of precious metals in intermediate sulfidation (IS) epithermal systems remains a subject of limited understanding and, as such, contributes a possible metallurgical risk during its processing and recovery. A combination of…
Detecting Buried Porphyry Cu Mineralization in a Glaciated Landscape: A Case Study from the Gibraltar Cu-Mo Deposit, British Columbia, Canada Open
At the Gibraltar porphyry Cu-Mo deposit in south-central British Columbia, Canada, geochemical and mineralogical anomalies in till around a cluster of mineral occurrences form amoeboid-shaped dispersal patterns controlled by three phases o…
Evaluation of magnetite as an indicator mineral for porphyry Cu exploration: a case study using bedrock and stream sediments at the Casino porphyry Cu–Au–Mo deposit, Yukon, Canada Open
Data 1. Bedrock data.
Development of a laser ablation ICP-MS method for the analysis of fluid inclusions associated with volcanogenic massive sulfide deposits Open
Data from the study
Development of a laser ablation ICP-MS method for the analysis of fluid inclusions associated with volcanogenic massive sulfide deposits Open
Data from the study
Development of a laser ablation ICP-MS method for the analysis of fluid inclusions associated with volcanogenic massive sulfide deposits Open
Data from the study
Development of a laser ablation ICP-MS method for the analysis of fluid inclusions associated with volcanogenic massive sulfide deposits Open
Data from the study
Sedimentary basin controls on orogenic gold deposits: New constraints from U-Pb detrital zircon and Re-Os sulphide geochronology, Lynn Lake greenstone belt, Canada Open
Sedimentary basins that open and close during the last stages of mountain building represent an important exploration criterion for orogenic gold deposits. However, the genetic and/or preservation controls of these synorogenic, or “Timiska…
Uranium-rich diagenetic fluids provide the key to unconformity-related uranium mineralization in the Athabasca Basin Open
The Proterozoic Athabasca Basin is well known for its unusually large-tonnage and high-grade ‘unconformity-related’ uranium (U) deposits, however, explanations for the basin-wide U endowment have not been clearly identified. Previous studi…
Platinum, Pd, Mo, Au and Re deportment in hyper-enriched black shale Ni-Zn-Mo-PGE mineralization, Peel River, Yukon, Canada Open
Middle Devonian Ni-Mo-Zn-Pt-Pd-Au-Re hyper-enriched black shales (HEBS) from Peel River in north Yukon have high abundances of platinum group elements (PGE; ca. 500 ppb), Au (40–130 ppb) and Re (8–55 ppm). Mineralization occurs in up to th…