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{
{
  "USGS Staff Profile": {
    "_id": "https://www.usgs.gov/staff-profiles/celestine-mercer",
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          "abstract": "Research Geologist with the Geology, Geophysics, and Geochemistry Science Center",
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          "abstract": "I am a Research Geologist at the U.S. Geological Survey in Denver, CO. My areas of expertise include igneous petrology, economic geology, experimental petrology, geochemistry, and volcanology. I spearhead the melt inclusion analysis capabilities in the Denver Inclusion Analysis Laboratory.",
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          "@type": "TextObject",
          "abstract": "I'm interested in applying melt inclusion studies and experimental petrology to learn more about how metals are concentrated and partition from magmas into ore-forming fluids that generate economic ore deposits.I am currently investigating: (1) magmatic contributions to iron oxide-rare earth element (IOA-RE) and iron oxide-copper-gold (IOCG) deposit genesis in the Missouri iron province, (2) concentrations and partitioning of Li in highly evolved rhyolites in the western US as a source for economic Li brines and clays, (3) quantifying critical elements (Li, W, REE) in rift related volcanic systems, and (4) testing the magmatic model for Carlin-type Au deposit genesis in Nevada. I recently completed a 5-year project entitled \"Magmas to Metals\" focused on melt inclusion and high-spatial resolution mineral geochemical analyses to explore igneous systems related to IOA-REE and IOCG mineralization in the St. Francois Mountains of SE Missouri.During my Ph.D. I used petrologic and geochemical methods to investigate the magmatic-hydrothermal transition at the porphyry-Cu-Mo deposit in Butte, Montana, and the crustal \"plumbing system\" of a stratovolcano in the Cascades.Recent StudentsNational Association of Geoscience Teachers-USGS Interns, 2018, 2014St. Lawrence University Summer Internship Program, 2017Denver Mayor's Program Intern, 2014Lunar & Planetary Institute Intern, 2011Denver Inclusion Analysis LaboratoryBruker Hyperion 3000 FTIR microscope interfaced with Vertex 70 FTIR spectrometer.For quantification and mapping of dissolved H and C species in volcanic glass or minerals.Melt inclusion preparation equipment.Leica binocular microscope, Nikon petrographic microscope, hot plates, grinding and polishing equipment.Rapid-quench cold-seal apparatii with computer-controlled pressure and temperature cycling.These devices are currentlyin developmentand will be well equipped for experimental studies of upper-crustal magmatic-hydrothermal processes up to ~2 kbar (200 MPa; equivalent to ~6 km depth in the Earth) and ~850\u00b0C.Ancillary experimental equipment.The lab also contains all necessary sample preparation and support equipment including a microwelder, microbalance, drying furnaces, etc.",
          "additionalType": "personal statement"
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      ],
      "email": "cmercer@usgs.gov",
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          "name": "Ph.D., Geological Sciences, University of Oregon, 2009"
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          "name": "B.A., Physics, Oberlin College, 2002"
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          "startDate": "2024-05-12T16:17:26.799215"
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          "@type": "Occupation",
          "additionalType": "self-claimed professional experience",
          "name": "Postdoctoral Fellow at the Lunar and Planetary Institute in Houston, TX, where I studied the petrogenesis of the Moon by examining lunar returned samples including a newly found lunar meteorite."
        },
        {
          "@type": "Occupation",
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          "name": "Visiting Professor at Colorado College from 2009-2010 where I taught Introductory Geology, Planetary Geology, Petrology, and \"Bubbling Magmas, Hot Springs, and Colorado's Premier Ore Deposits\"."
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      "name": "Celestine Mercer",
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          "name": "Apatite trace element geochemistry and cathodoluminescent textures\u2014A comparison between regional magmatism and the Pea Ridge IOA-REE and Boss IOCG deposits, southeastern Missouri iron metallogenic province, USA"
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Retrieved from "https://geokb.wikibase.cloud/wiki/Special:MobileDiff/1131508"