Item talk:Q227175

{

 "@context": "http://schema.org/",
 "@type": "WebPage",
 "additionalType": "Project",
 "url": "https://www.usgs.gov/centers/gggsc/science/outcrop-ions-development-and-application-situ-isotope-ratio-measurements",
 "headline": "From Outcrop to Ions: development and application of in-situ isotope ratio measurements to solve geologic problems",
 "datePublished": "December 8, 2022",
 "author": [
   {
     "@type": "Person",
     "name": "A. Kate Souders",
     "url": "https://www.usgs.gov/staff-profiles/a-kate-souders",
     "identifier": {
       "@type": "PropertyValue",
       "propertyID": "orcid",
       "value": "0000-0002-1367-8924"
     }
   },
   {
     "@type": "Person",
     "name": "Christopher Holm-Denoma",
     "url": "https://www.usgs.gov/staff-profiles/christopher-holm-denoma",
     "identifier": {
       "@type": "PropertyValue",
       "propertyID": "orcid",
       "value": "0000-0003-3229-5440"
     }
   },
   {
     "@type": "Person",
     "name": "Leonid Neymark",
     "url": "https://www.usgs.gov/staff-profiles/leonid-neymark",
     "identifier": {
       "@type": "PropertyValue",
       "propertyID": "orcid",
       "value": "0000-0003-4190-0278"
     }
   },
   {
     "@type": "Person",
     "name": "Brian Marshall",
     "url": "https://www.usgs.gov/staff-profiles/brian-marshall",
     "identifier": {
       "@type": "PropertyValue",
       "propertyID": "orcid",
       "value": "0000-0002-8093-0093"
     }
   }
 ],
 "description": [
   {
     "@type": "TextObject",
     "text": "This project will allow us to (1) develop innovative in-situ analytical techniques for isotope geochemistry and U-Pb geochronology using plasma ionization mass spectrometry and (2) apply our new analytical techniques to collaborative research projects of high priority to theMineral Resources Program (MRP), including studies related to the U.S. midcontinent region and Alaska, and/or processes related to the formation of critical mineral deposits."
   },
   {
     "@type": "TextObject",
     "text": "Project objectives are to (1) develop innovative analytical techniques for isotope geochemistry and U-Pb geochronology using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), and (2) apply these techniques to collaborative research projects of high priority to the Mineral Resources Program, including studies related to the formation of \"critical mineral\" deposits, and studies related to Alaska and U.S. midcontinent regions."
   },
   {
     "@type": "TextObject",
     "text": "Our next major tasks are to refine our existing techniques and establish a series of new methods for isotopic and geochronological research using a philosophy of innovation through collaboration."
   },
   {
     "@type": "TextObject",
     "text": "Collaboration: The closely related fields of isotope geochemistry and geochronology are the power tools in the Geologist's tool chest. A major goal of this project is to increase the usage of these tools within the USGS through collaboration with other scientists on current and future MRP projects. We will involve USGS scientists in research with isotopes through a series of case studies related to high-priority Mineral Resources Program projects."
   },
   {
     "@type": "TextObject",
     "text": "Return to:  Mineral Resources Program | Geology, Geophysics, and Geochemistry Science Center"
   },
   {
     "@type": "TextObject",
     "text": "The Plasma Laboratory houses a new double-focusing multiple-collector plasma ionization mass spectrometer (MC-ICPMS), a Nu Plasma II, and a new 193 nm laser ablation system (RESOlution-SE). This LA-MC-ICPMS is designed to perform in-situ high-precision measurements of radiogenic and stable isotopes of trace elements. The other instrumentation in the Plasma Laboratory includes double-focusing single-collector lasma ionization mass spectrometer (SC-ICPMS), a Nu AttoM ES, and a new Agilent 7900 quadruple (Q) ICPMS. The latter two instruments are primarily used to perform rapid in situ measurements of Pb isotope ratios (i.e., common Pb for tracer studies or radiogenic Pb for U-Pb dating) and trace element abundances."
   },
   {
     "@type": "TextObject",
     "text": "Innovation: Our goal is to improve the precision and accuracy of each technique to reach or surpass the cutting edge, while increasing efficiency (i.e., reducing the time and cost per analysis). We are following a phased approach of establishing or refining the analytical techniques from the basics (e.g., in situ U-Pb dating of zircon, apatite, titanite, and rutile, Hf isotopes in zircon; Nd isotopes in monazite) to those with higher risk and greater impact (e.g., St isotopes in apatite, feldspars, carbonates, and barite; Pb isotopes in feldspar and tourmaline; Li isotopes in tourmaline; Nd isotopes in bastnaesite or scheelite; Sn isotopes in cassiterite, or in situ U-Pb dating of ore-related minerals, such as bastnaesite, columbite, cassiterite, or scheelite)."
   },
   {
     "@type": "TextObject",
     "text": "Project tasks are focused on the following activities:"
   }
 ],
 "funder": {
   "@type": "Organization",
   "name": "Geology, Geophysics, and Geochemistry Science Center",
   "url": "https://www.usgs.gov/centers/gggsc"
 },
 "about": [
   {
     "@type": "Thing",
     "name": "Concealed Deposits"
   },
   {
     "@type": "Thing",
     "name": "Science Technology"
   },
   {
     "@type": "Thing",
     "name": "Framework Studies"
   },
   {
     "@type": "Thing",
     "name": "Isotope Geochemistry"
   },
   {
     "@type": "Thing",
     "name": "Methods and Analysis"
   },
   {
     "@type": "Thing",
     "name": "Environmental Health"
   },
   {
     "@type": "Thing",
     "name": "Alaska Geology and Mineral Resources"
   },
   {
     "@type": "Thing",
     "name": "Mineral Resources Program (MRP)"
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   {
     "@type": "Thing",
     "name": "Laboratories"
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   {
     "@type": "Thing",
     "name": "Geochronology"
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   {
     "@type": "Thing",
     "name": "Geochemistry"
   },
   {
     "@type": "Thing",
     "name": "Economic Geology"
   },
   {
     "@type": "Thing",
     "name": "Critical Minerals"
   },
   {
     "@type": "Thing",
     "name": "Microanalysis"
   },
   {
     "@type": "Thing",
     "name": "Water"
   },
   {
     "@type": "Thing",
     "name": "Mass spectrometry"
   },
   {
     "@type": "Thing",
     "name": "Information Systems"
   },
   {
     "@type": "Thing",
     "name": "Analytical Chemistry"
   },
   {
     "@type": "Thing",
     "name": "Trace Elements"
   },
   {
     "@type": "Thing",
     "name": "Support Activities"
   },
   {
     "@type": "Thing",
     "name": "Geology"
   },
   {
     "@type": "Thing",
     "name": "inductively coupled plasma-mass spectrometry (ICP-MS)"
   },
   {
     "@type": "Thing",
     "name": "isotope geochronology"
   },
   {
     "@type": "Thing",
     "name": "method development"
   },
   {
     "@type": "Thing",
     "name": "Research Geochemistry"
   },
   {
     "@type": "Thing",
     "name": "Rare Earth Elements (REE)"
   },
   {
     "@type": "Thing",
     "name": "Minerals"
   },
   {
     "@type": "Thing",
     "name": "Mineral Resources"
   },
   {
     "@type": "Thing",
     "name": "Ore Deposit Genesis"
   },
   {
     "@type": "Thing",
     "name": "Applied Geochemistry"
   },
   {
     "@type": "Thing",
     "name": "Energy"
   },
   {
     "@type": "Thing",
     "name": "isotope geochemistry"
   },
   {
     "@type": "Thing",
     "name": "Mineral Resource Formation"
   },
   {
     "@type": "Thing",
     "name": "Midcontinent Region Resources"
   },
   {
     "@type": "Thing",
     "name": "Method Development"
   },
   {
     "@type": "Thing",
     "name": "Critical Resources"
   },
   {
     "@type": "Thing",
     "name": "Geochemical Data"
   }
 ]

}