ORCID:
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Lederer
USGS Staff Profile:
'@context': https://schema.org '@type': Person affiliation: [] description: - '@type': TextObject abstract: Physical Scientist with the Geology, Energy & Minerals Science Center additionalType: short description - '@type': TextObject abstract: Graham Lederer is a Physical Scientist for the USGS Geology, Energy & Minerals (GEM) Science Center in Reston, VA. additionalType: staff profile page introductory statement - '@type': TextObject abstract: "In my role at the U.S. Geological Survey, I study the supply of materials\ \ important to society through materials flow analysis and mineral resource\ \ assessment. Materials flow analysis provides a quantitative framework for\ \ understanding how mineral resources are transformed into mineral commodities\ \ and enter industrial supply chains through processes like primary production,\ \ trade, manufacturing, end use, and recycling. Mineral resource assessment\ \ involves characterizing mineral deposits and integrating geological, geochemical,\ \ and geophysical datasets to better understand how and where minerals resources\ \ are concentrated in the Earth.As a geologist, I am primarily interested in\ \ the physical and chemical evolution of the Earth\u2019s crust. My research\ \ on ancient and modern orogens focuses on the many processes that create and\ \ modify continental crust including deformation, metamorphism, partial melting,\ \ and magmatism. Interpreting the spatial and temporal patterns of these petrogenetic\ \ processes requires a combination of field- and laboratory-based techniques\ \ including detailed structural mapping, microstructural analysis, trace element\ \ geochemistry, and accessory phase geochronology. To date, my projects have\ \ ranged from characterizing strain in the Grenville basement complex of the\ \ Virginia Blue Ridge, constraining the timescales of partial melting in the\ \ Himalayan mid-crust through U-Th-Pb dating of syn-tectonic leucogranites,\ \ evaluating rare earth phosphate mineralization mechanisms in Proterozoic gneisses\ \ of eastern California, and assessing the timing and tempo of large igneous\ \ provinces associated with catastrophic changes in Earth history." additionalType: personal statement email: glederer@usgs.gov hasCredential: - '@type': EducationalOccupationalCredential name: 'Ph.D. Geological Sciences, University of California Santa Barbara (2014) - Timescales of crustal anatexis: monazite petrochronology of Himalayan granites (Advisor: Dr. J. M. Cottle)' - '@type': EducationalOccupationalCredential name: 'B.S. Geology and Environmental Science, College of William and Mary (2009) - Geology and structural history of the Blue Ridge basement complex, Albemarle County, Virginia (Advisor: Dr. C. M. Bail' hasOccupation: - '@type': OrganizationalRole affiliatedOrganization: '@type': Organization name: Geology, Energy & Minerals Science Center url: https://www.usgs.gov/centers/geology-energy-and-minerals-science-center roleName: Physical Scientist startDate: '2024-05-12T15:23:50.279229' - '@type': Occupation additionalType: self-claimed professional experience name: Physical Scientist, United States Geological Survey (2015-present) - '@type': Occupation additionalType: self-claimed professional experience name: Postdoctoral Associate, Massachusetts Institute of Technology (2014-2015) - '@type': Occupation additionalType: self-claimed professional experience name: Teaching Associate, University of California Santa Barbara (2014) - '@type': Occupation additionalType: self-claimed professional experience name: Geologist, United States Geological Survey (2011) identifier: - '@type': PropertyValue propertyID: GeoKB value: https://geokb.wikibase.cloud/entity/Q47491 - '@type': PropertyValue propertyID: ORCID value: 0000-0002-9505-9923 jobTitle: Physical Scientist knowsAbout: - '@type': Thing additionalType: self-claimed expertise name: Mineral Resource Assessment - '@type': Thing additionalType: self-claimed expertise name: Economic Geology - '@type': Thing additionalType: self-claimed expertise name: Materials Flow Analysis - '@type': Thing additionalType: self-claimed expertise name: Geochronology memberOf: '@type': OrganizationalRole member: '@type': Organization name: U.S. Geological Survey name: staff member startDate: '2024-05-12T15:23:50.276584' name: Graham W. Lederer, Ph.D. url: https://www.usgs.gov/staff-profiles/graham-w-lederer