A5039657168- Geochemistry and Geologic Mapping
- Geological and Geochemical Analysis
- Music History and Culture
- Mineral Processing and Grinding
- earthquake and tectonic studies
- Geological Studies and Exploration
- Hydrocarbon exploration and reservoir analysis
- Mining Techniques and Economics
- Atmospheric and Environmental Gas Dynamics
- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Minerals Flotation and Separation Techniques
- Indigenous Studies and Ecology
- Data Quality and Management
- CO2 Sequestration and Geologic Interactions
- Radioactive element chemistry and processing
- Geological and Geophysical Studies Worldwide
- Mineralogy and Gemology Studies
- Industrial Engineering and Technologies
- X-ray Spectroscopy and Fluorescence Analysis
- Diverse Musicological Studies
- Geological Modeling and Analysis
- Metal Extraction and Bioleaching
- Maritime and Coastal Archaeology
- Geophysical and Geoelectrical Methods
U.S. Geological Survey, Alaska Science Center
2017-2023
United States Geological Survey
2017-2023
Film Independent
2021
James Cook University
2014-2017
Natural Resources Canada
1989-2013
Abstract Graphite Creek is an unusual flake graphite deposit located on the Seward Peninsula, Alaska, USA. We present field observations, uranium-lead (U–Pb) monazite and titanite geochronology, carbon (C) sulfur (S) stable isotope geochemistry, Raman spectroscopy data from this that support a new model of ore genesis in high-grade metamorphic environments. The within second sillimanite zone Kigluaik Mountains gneiss dome. Flake graphite, hosted sillimanite-gneiss quartz-biotite paragneiss,...
The Monakoff iron oxide–Cu–Au (IOCG) deposit, located to the north east of Cloncurry within Eastern Succession Mount Isa Inlier, Queensland, Australia, is characterised by high concentrations F and Ba, with a host other enriched elements including Co, Ag, Mn, REE, U, Pb, Zn Sr. This gives deposit characteristic gangue assemblage dominated fluorite, barite calcite. nearby E1 25 km NNE Monakoff, large Ernest Henry 3 west E1, also contain abundant calcite in late stage assemblages. three...
Abstract Iron oxide–Cu–Au (IOCG) deposits encompass a range of ore body shapes, including strata-bound replacement ores and hydrothermal breccias. We use the implicit method to make detailed three-dimensional geological model IOCG in Cloncurry District, E1 Group, elucidate structural controls on mineralization. This is compared with nearby, world-class, Ernest Henry breccia-hosted deposit. Cu–Au mineralization Group occurs as structurally controlled, mainly strata-bound, bodies hosted...
First posted July 14, 2022 For additional information, contact: Director, Alaska Science CenterU.S. Geological Survey4210 University DriveAnchorage, 99508Contact Pubs Warehouse Phase 3 of the Earth Mapping Resources Initiative (Earth MRI) focuses on geologic belts that are favorable for hosting mineral systems could contain critical minerals antimony, barite, beryllium, chromium, fluorspar, hafnium, magnesium, manganese, uranium, vanadium, and zirconium. Prior phases MRI program in focused...
First posted June 29, 2021 Revised October 28, For additional information, contact: Director,Alaska Science CenterU.S. Geological Survey4210 University DriveAnchorage, Alaska 99508 Several comprehensive, data-driven geographic information system (GIS) analyses were conducted to assess prospectivity for lode gold in Alaska. These use available geospatial datasets of lithologic, geochemical, mineral occurrence, and geophysical data build models recognizing different types deposits within...
First posted May 26, 2020 For additional information, contact: Director,Alaska Science CenterU.S. Geological Survey4210 University DriveAnchorage, Alaska 99508 A recent U.S. Survey data compilation of stream-sediment geochemistry for contains decades analyses collected under numerous Federal and State programs. The compiled were determined by various analytical methods. Some samples reanalyzed a different method than the original, resulting in some elements having concentrations reported...
Tungsten (W) is used in a variety of industrial and technological applications has been identified as critical mineral for the United States, India, European Union, other countries. These countries rely on W imports mostly from China, which leaves them vulnerable to supply disruption. Consequently, U.S. government current initiative understand domestic resource potential. The eastern Alaska portion Yukon-Tanana Upland (YTU), prospective skarn deposits, major source global supply. regional...
First posted May 18, 2022 For additional information, contact: Director,Alaska Science CenterU.S. Geological Survey4210 University DriveAnchorage, Alaska 99508 Comprehensive, data-driven geographic information system analyses utilize publicly available lithologic, geochemical, geophysical, and mineral occurrence datasets to delineate gold resource potential in Alaska. These prospectivity successfully identify areas containing known lode occurrences, expand of high around improve the...
Geological sequestration of for enhanced oil recovery (EOR) has been in use decades, but it now represents a potentially economical method mitigating anthropogenic output. However, current understanding the interaction between injected and reservoir rock is limited prevents accurate estimation capacity. Delineating diagenesis useful predicting post- injection changes porosity permeability. The Albian Donovan Sand member Rodessa Formation, Citronelle Field, Alabama, subject an ongoing...