Christopher Holm-Denoma
Chris Holm-Denoma is a Research Geologist at the U.S. Geological Survey in Denver, CO.
He is currently involved in studies related to the structure, tectonics, and geochronology of regions with mineral deposits. Chris started his career at the the USGS as a postdoc in the Mendenhall Research Fellowship Program where he studied the structure and stratigraphy of the Roberts Mountains allochthon as related to Carlin-type Au deposits. Chris was an Lecturer at the University of Vermont from 2007-2008 where he taught Introductory Geology, Petrology, and a seminar in Appalachian Geology. He also spent a year in Minneapolis as a visiting scholar at the University of Minnesota and concurrently taught Geology and Oceanography courses at North Hennepin Community College. During his Ph.D. he used detailed mapping, structural analyses and isotopic/geochemical methods to investigate the Paleozoic evolution of a backarc and associated igneous rocks in the southern Appalachians. His areas of expertise include: structure/tectonics, field mapping, in situ geochronology (SHRIMP and LA-ICP-MS) and trace element geochemistry.
Education and Certifications
Ph.D., Geological Sciences, Florida State University, 2006
B.S., Geology, The George Washington University, 1998
Science and Products
In situ LA-ICPMS U–Pb dating of cassiterite without a known-age matrix-matched reference material: Examples from worldwide tin deposits spanning the Proterozoic to the Tertiary
Review of the geochemistry and metallogeny of approximately 1.4 Ga granitoid intrusions of the conterminous United States
Detrital zircon geochronology of quartzose metasedimentary rocks from parautochthonous North America, east-central Alaska
The Valmy thrust sheet: A regional structure formed during the protracted assembly of the Roberts Mountains allochthon, Nevada, USA
The Permian–Triassic transition in Colorado
High spatial resolution U-Pb geochronology and Pb isotope geochemistry of magnetite-apatite ore from the Pea Ridge iron oxide-apatite deposit, St. Francois Mountains, southeast Missouri, USA
Geology of the Mount Rogers area, revisited: Evidence of Neoproterozoic continental rifting, glaciation, and the opening and closing of the Iapetus ocean, Blue Ridge, VA–NC–TN
Recent field and geochronological studies in eight 7.5-minute quadrangles near Mount Rogers in Virginia, North Carolina and Tennessee recognize important stratigraphic and structural relationships for the Neoproterozoic Mount Rogers and Konnarock formations, the northeast end of the Mountain City window, the separation of Mesoproterozoic rocks of the Blue Ridge into three age groups, and timing an
Geochemical, modal, and geochronologic data for 1.4 Ga A-type granitoid intrusions of the conterminous United States
A Laurentian margin back-arc: the Ordovician Wedowee-Emuckfaw-Dahlonega basin
Basement domain map of the conterminous United States and Alaska
Early to Middle Ordovician back-arc basin in the southern Appalachian Blue Ridge: characteristics, extent, and tectonic significance
Integration of new geologic mapping and satellite-derived quartz mapping yields insights into the structure of the Roberts Mountains allochthon applicable to assessments for concealed Carlin-type gold deposits
Science and Products
In situ LA-ICPMS U–Pb dating of cassiterite without a known-age matrix-matched reference material: Examples from worldwide tin deposits spanning the Proterozoic to the Tertiary
Review of the geochemistry and metallogeny of approximately 1.4 Ga granitoid intrusions of the conterminous United States
Detrital zircon geochronology of quartzose metasedimentary rocks from parautochthonous North America, east-central Alaska
The Valmy thrust sheet: A regional structure formed during the protracted assembly of the Roberts Mountains allochthon, Nevada, USA
The Permian–Triassic transition in Colorado
High spatial resolution U-Pb geochronology and Pb isotope geochemistry of magnetite-apatite ore from the Pea Ridge iron oxide-apatite deposit, St. Francois Mountains, southeast Missouri, USA
Geology of the Mount Rogers area, revisited: Evidence of Neoproterozoic continental rifting, glaciation, and the opening and closing of the Iapetus ocean, Blue Ridge, VA–NC–TN
Recent field and geochronological studies in eight 7.5-minute quadrangles near Mount Rogers in Virginia, North Carolina and Tennessee recognize important stratigraphic and structural relationships for the Neoproterozoic Mount Rogers and Konnarock formations, the northeast end of the Mountain City window, the separation of Mesoproterozoic rocks of the Blue Ridge into three age groups, and timing an