A5016917749- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Mineralogy and Gemology Studies
- Diamond and Carbon-based Materials Research
- Laser-induced spectroscopy and plasma
- Laser-Ablation Synthesis of Nanoparticles
- Nonlinear Optical Materials Studies
- Geology and Paleoclimatology Research
- Geological Formations and Processes Exploration
- Archaeology and Natural History
- Paleontology and Stratigraphy of Fossils
- Extraction and Separation Processes
- Water Quality Monitoring and Analysis
- Plant and fungal interactions
- Cultural Heritage Materials Analysis
- Soil Geostatistics and Mapping
- Geological and Geophysical Studies Worldwide
- Advanced Statistical Methods and Models
- Force Microscopy Techniques and Applications
- Hydrocarbon exploration and reservoir analysis
- Spectroscopy and Chemometric Analyses
- Geochemistry and Elemental Analysis
Gemological Institute of America
2021-2025
University of Alberta
2016-2022
Abstract Estimating the equilibration temperatures of mantle‐derived garnets is crucial for assessing diamond potential kimberlites. Traditional garnet geothermometers require co‐existing mineral data or costly trace element analysis, limiting their practical use. As an alternative approach, based on major and minor composition alone, we first re‐calibrated Mn‐in‐garnet thermometer using a newly compiled set from well‐equilibrated peridotitic xenoliths with well‐constrained...
Abstract Triple oxygen isotope (δ17O and δ18O) values of high- low-temperature altered oceanic crust products basalt alteration experiments were measured to better constrain ocean compositions in deep time. The data define an array δ18O Δ′17O (Δ′17O=δ′17O − λRL × δ′18O + γ) from mantle toward 1‰ −0.01‰, respectively, with a λ ~0.523. used construct model for estimating δ18O-Δ′17O the ancient oceans if continental weathering flux (FCW) and/or hydrothermal (FHT) changed through A maximum...
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Abstract The late Roman rural estate of Gerace is located in Sicily’s Enna province. Between 2016 and 2019, excavations focused on a bathhouse (ca. 380 AD) approximately 50 m northeast the main villa. During excavation fill tepidarium (warm room) 2017, an emerald cabochon was discovered. medium green, translucent to opaque, round outline with flat back, 9 mm length 4 high, weighs ∼2.5 ct. In times, emeralds enjoyed great popularity jewelry, cabochon’s shape, size, base all suggest that this...
The geographic origin of gem corundum has emerged as one its major value factors. Combined with gemological observations, trace element analysis is a powerful tool for the determination provenance. However, owing to similar properties and features from different localities, but geological settings, very low levels many elements in corundum, remains challenging. In this study, we present compositions determined by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) rubies...
Abstract The origin of the eclogites that reside in cratonic mantle roots has long been debated. In classic Roberts Victor kimberlite locality South Africa, strongly contrasting textural and geochemical features two types have led to different genetic models. We studied a new suite 63 eclogite xenoliths from former Mine. addition major- trace-element compositions for all samples, we determined 18O/16O garnet 34eclogites. Based on characteristics identify large Type I (n = 53) consistent with...
opaz is an orthorhombic nesosilicate with the general chemical formula Al 2 SiO 4 F .It can form from fluorine-and lithium-rich, peraluminous (aluminum-rich and calcium-poor), highly fractionated silicic melts or gases geologically associated rhyolites, pegmatites, hydrothermal-greisen rocks (