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Douglas C Kreiner

Doug Kreiner is the Associate Center Director for Geology for the Alaska Science Center.

Doug joined the USGS in late 2016 following 5 and a half years in the mineral exploration industry. His research involves field-based studies of fluid-rock interactions in the upper crust and the time-space genesis of mineral deposits with a particular interest in the links between regional scale tectonic processes and metallogenesis of Cu and Au dominant systems. Current projects focus on the metallogenic evolution of eastern interior Alaska, characterization, documentation and geochronology of porphyry deposits across Alaska, developing a mineral systems framework for Alaska, and attempting to understand where, how, and why critical mineral enrichments occur in Alaska mineral systems. Kreiner earned a BS in Geosciences and Environmental Studies at Northland College (2004), his M.S. from Colorado State University (2006) and his PhD from University of Arizona (2011).

Professional Experience

  • 2024 - Present   Associate Center Director for Geology, USGS Alaska Science Center

  • 2016 - 2024     Research Geologist, USGS Alaska Science Center

Education and Certifications

  • Ph.D.   2011   University of Arizona

  • M.S.    2006  Colorado State University

  • B.S.    2004   Northland College  Geosciences and Environmental Studies

Science and Products

Filter Total Items: 17

Critical minerals for a carbon-neutral future

The Earth Mapping Resources Initiative is filling data gaps and fostering more holistic understanding of critical mineral resources in the United States using a novel mineral systems framework.

Authors
Douglas C. Kreiner, Jane M. Hammarstrom, Warren C. Day
By
Alaska Science Center

Constraints on the genesis of Au veins in interior Alaska: Evidence from geochronology and vein textures

The origin of Au-bearing, low sulfide quartz veins in the Pogo and Tibbs Creek regions of interior Alaska remain enigmatic. Intrusion-related Au and mesozonal orogenic vein models have both been proposed (Thompson and Newberry, 2000; Rhys et al., 2003; Goldfarb et al., 2022; Dilworth et al., 2007). To date, studies of igneous geochronology and metamorphic timing have shown that gold veins formed b
Authors
Douglas C. Kreiner, William Thompson, Jonathan Caine, Ashleigh Ball, Christopher Holm-Denoma, Paul O'Sullivan, Holly J. Stein
By
Alaska Science Center

Geochronology and mapping constraints on the time-space evolution of the igneous and hydrothermal systems in the Taurus Cu-Mo district, eastern Alaska

The Taurus porphyry Cu-Mo district contains four mineralized porphyry centers in the eastern interior of Alaska. All four centers were emplaced during a magmatic episode that spanned from ca. 72 to 67 Ma, with seven distinct igneous suites. Each igneous suite resulted in hydrothermal alteration and mineralization, with younger pulses overprinting older pulses. Each magmatic-hydrothermal system is
Authors
Douglas C. Kreiner, Christopher Holm-Denoma, Laura Pianowski, Zachary Flood, David J. Stevenson, Garth E. Graham, Jorge A. Vazquez, Robert A Creaser
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center

National map of focus areas for potential critical mineral resources in the United States

Introduction The U.S. Geological Survey (USGS) launched the Earth Mapping Resources Initiative (Earth MRI) to modernize the surface and subsurface geologic mapping of the United States, with a focus on identifying areas that may have the potential to contain critical mineral resources. EarthMRI can inform strategies to ensure secure and reliable domestic critical mineral supplies for the United St
Authors
Jane M. Hammarstrom, Douglas C. Kreiner, Connie L. Dicken, Laurel G. Woodruff
By
Mineral Resources Program, Alaska Science Center, Geology, Energy & Minerals Science Center, Earth Mapping Resources Initiative (Earth MRI)

Yukon River incision drove organic carbon burial in the Bering Sea during global climate changes at 2.6 and 1 Ma

River erosion affects the carbon cycle and thus climate by exporting terrigenous carbon to seafloor sediment and by nourishing CO2-consuming marine life. The Yukon River–Bering Sea system preserves rare source-to-sink records of these processes across profound changes in global climate during the past 5 million years (Ma). Here, we expand the terrestrial erosion record by dating terraces along the
Authors
Adrian Bender, Richard O. Lease, Lee B. Corbett, Paul R. Bierman, Marc W. Caffee, James V. Jones, Douglas C. Kreiner
By
Alaska Science Center

Marine minerals in Alaska — A review of coastal and deep-ocean regions

Minerals occurring in marine environments span the globe and encompass a broad range of mineral categories, forming within varied geologic and oceanographic settings. They occur in coastal regions, either from the continuation or mechanical reworking of terrestrial mineralization, as well as in the deep ocean, from diagenetic, hydrogenetic, and hydrothermal processes. The oceans cover most of the

Authors
Amy Gartman, Kira Mizell, Douglas C. Kreiner
By
Ecosystems Mission Area, Coastal and Marine Hazards and Resources Program, Alaska Science Center, Pacific Coastal and Marine Science Center, Marine Minerals Laboratory

Alaska focus area definition for data acquisition for potential domestic sources of critical minerals in Alaska for antimony, barite, beryllium, chromium, fluorspar, hafnium, magnesium, manganese, uranium, vanadium, and zirconium

Phase 3 of the Earth Mapping Resources Initiative (Earth MRI) focuses on geologic belts that are favorable for hosting mineral systems that could contain the critical minerals antimony, barite, beryllium, chromium, fluorspar, hafnium, magnesium, manganese, uranium, vanadium, and zirconium. Prior phases of the Earth MRI program in Alaska focused only on rare earth elements, aluminum, cobalt, graphi
Authors
Douglas C. Kreiner, James V. Jones, George N. Case
By
Energy and Minerals Mission Area, Mineral Resources Program, Alaska Science Center, Earth Mapping Resources Initiative (Earth MRI)

Geospatial analysis delineates lode gold prospectivity in Alaska

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 analyses successfully identify areas containing known lode gold occurrences, expand areas of high prospectivity around known occurrences, improve the precision of deline
Authors
Susan M. Karl, Douglas C. Kreiner, George N. D. Case, Keith A. Labay
By
Ecosystems Mission Area, Alaska Science Center

GIS-based identification of areas that have resource potential for lode gold in Alaska

Several comprehensive, data-driven geographic information system (GIS) analyses were conducted to assess prospectivity for lode gold in Alaska. These analyses use available geospatial datasets of lithologic, geochemical, mineral occurrence, and geophysical data to build models for recognizing different types of gold deposits within physiographic units defined by stream drainage basins that are app
Authors
Susan M. Karl, Douglas C. Kreiner, George N. D. Case, Keith A. Labay, Nora B. Shew, Matthew Granitto, Bronwen Wang, Eric D. Anderson
By
Ecosystems Mission Area, Energy and Minerals Mission Area, Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Deposit classification scheme for the Critical Minerals Mapping Initiative Global Geochemical Database

A challenge for the global economy is to meet the growing demand for commodities used in today’s advanced technologies. Critical minerals are commodities (for example, elements, compounds, minerals) deemed vital to the economic and national security of individual countries that are vulnerable to supply disruption. The national geological agencies of Australia, Canada, and the United States recentl
Authors
Albert H. Hofstra, Vladimir Lisitsin, Louise Corriveau, Suzanne Paradis, Jan Peter, Kathleen Lauzière, Christopher Lawley, Michael Gadd, Jean-Luc Pilote, Ian Honsberger, Evgeniy Bastrakov, David Champion, Karol Czarnota, Michael Doublier, David Huston, Oliver Raymond, Simon VanDerWielen, Poul Emsbo, Matthew Granitto, Douglas C. Kreiner
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Tectonic and magmatic controls on the metallogenesis of porphyry deposits in Alaska

Porphyry Cu and Mo deposits and occurrences are found throughout Alaska; they formed episodically during repeated subduction and arc-continent collisions spanning the Silurian to Quaternary. Porphyry systems occur in continental-margin and island arcs, which are broadly grouped into pre-accretionary or post-accretionary arcs. Pre-Mesozoic occurrences formed in continental or island arcs prior to a
Authors
Douglas C. Kreiner, James V. Jones, Karen D. Kelley, Garth E. Graham
By
Ecosystems Mission Area, Climate Adaptation Science Centers, Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Ancient rivers and critical minerals in eastern Alaska

No abstract available.
Authors
Adrian Bender, Richard O. Lease, James V. Jones, Douglas C. Kreiner
By
Alaska Science Center

Non-USGS Publications**

Kreiner, Douglas C., and Mark D. Barton. "Sulfur-poor intense acid hydrothermal alteration: A distinctive hydrothermal environment." Ore Geology Reviews 88 (2017): 174-187.
Kreiner, Douglas C., and Mark D. Barton. "High-level alteration in iron-oxide (-Cu-Au)(’IOCG’) vein systems, examples near Copiapó Chile." Society for Geology Applied to Mineral Deposits, 11th, Antofagasta, Chile, Extended Abstracts (2011): 497-499.
Barton, Mark D., James D. Girardi, Douglas C. Kreiner, Eric Seedorff, Lukas Zurcher, John H. Dilles, Gordon B. Haxel, David A. Johnson, R. C. Steininger, and W. M. Pennell. "Jurassic igneous-related metallogeny of southwestern North America." Great Basin Evolution and Metallogeny: Reno, Nevada, Geological Society of Nevada (2011): 373-396.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

link
Half-meter-thick quartz veins cut across outcrops of granitic gneiss on Divide Mountain along the Alaska-Yukon border

Alaska Earth Mapping Resources Initiative (Earth MRI)

Our objective is to provide a strategic framework for planning, coordination, and execution of the USGS Earth Mapping Resources Initiative (Earth MRI) in Alaska. Earth MRI aims to improve knowledge of the U.S. geologic framework through new geological and geophysical mapping and to identify areas that have the potential to contain undiscovered critical mineral resources.
By
Mineral Resources Program, Alaska Science Center, Earth Mapping Resources Initiative (Earth MRI)
link

Alaska Earth Mapping Resources Initiative (Earth MRI)

Our objective is to provide a strategic framework for planning, coordination, and execution of the USGS Earth Mapping Resources Initiative (Earth MRI) in Alaska. Earth MRI aims to improve knowledge of the U.S. geologic framework through new geological and geophysical mapping and to identify areas that have the potential to contain undiscovered critical mineral resources.
Learn More
link
Half-meter-thick quartz veins cut across outcrops of granitic gneiss on Divide Mountain along the Alaska-Yukon border

Tectonic and Metallogenic Evolution of the Yukon-Tanana Upland, Alaska

The Yukon-Tanana upland in eastern interior Alaska is a geologically complex block containing deposits of base-metal, platinum-group-element, and gold-silver-copper mineralization. It also hosts numerous mineral systems that are known or suspected to contain critical minerals.
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center
link

Tectonic and Metallogenic Evolution of the Yukon-Tanana Upland, Alaska

The Yukon-Tanana upland in eastern interior Alaska is a geologically complex block containing deposits of base-metal, platinum-group-element, and gold-silver-copper mineralization. It also hosts numerous mineral systems that are known or suspected to contain critical minerals.
Learn More
link
Darby Mountain outcrop of quartz monzonite towards the contact between the pluton and Paleozoic marbles

Petrology, Tectonic Setting, and Potential for Concentration of Rare Earth Elements (REE) and High Field Strength Elements (HFSE) in the High-K Darby and Kachauik Plutons, Seward Peninsula, Alaska

One of the geologic environments that host rare earth and other critical and strategic element deposits are alkaline intrusive rocks.
By
Mineral Resources Program, Alaska Science Center
link

Petrology, Tectonic Setting, and Potential for Concentration of Rare Earth Elements (REE) and High Field Strength Elements (HFSE) in the High-K Darby and Kachauik Plutons, Seward Peninsula, Alaska

One of the geologic environments that host rare earth and other critical and strategic element deposits are alkaline intrusive rocks.
Learn More

U-Pb Ages, Hafnium Isotope Ratios, and Trace Element Concentrations by Laser-ablation Split Stream (LASS) Analysis of Igneous and Metamorphic Zircons from the Yukon-Tanana Upland, Eastern Alaska

This data set contains U-Pb isotopic data and ages, Hf isotope data, and trace element concentrations of zircon from igneous rocks collected from the Yukon-Tanana Upland, eastern Alaska. The sample suite was collected as part of geological mapping and supporting geochemical and geochronological analysis conducted from 2013 to 2019. Zircon was obtained from these igneous rocks to determine the crys
By
Alaska Science Center

Whole Rock Major and Trace Element Chemistry for Igneous and Metamorphic Rocks from the Yukon-Tanana Upland, Alaska

This data set consists of one table containing whole-rock geochemistry data for 753 igneous and metamorphic rocks from the Yukon-Tanana upland of eastern interior Alaska, collected between 2013 and 2019. All materials were analyzed by ALS Global, between 2014 and 2020, by a range of different techniques, so multiple unique entries for a given element relate to different analytical methods or prepa
By
Alaska Science Center

U-Pb zircon data for igneous units related to mineralization in the eastern Yukon-Tanana upland, eastern Alaska

From 2017-2019, framework metallogenic studies were completed in the eastern Yukon-Tanana upland in eastern Alaska. Numerous previously undated plutons known or suspected to contain components of porphyry, epithermal, and intrusion-related gold systems and associated deposit types were sampled for age and zircon trace element determinations between the Black Mountain area and the Yukon border, nor
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Zircon Trace Element Data for Igneous Units Related to Mineralization in the Eastern Yukon-Tanana Upland and nearby areas, Eastern Alaska

From 2017-2019, framework metallogenic studies were completed in the eastern Yukon-Tanana upland in eastern Alaska. Numerous previously undated plutons known or suspected to contain components of porphyry, epithermal, and intrusion-related gold systems and associated deposit types were sampled for age and zircon trace element determinations between the Black Mountain area and the Yukon border, nor
By
Alaska Science Center

Re-Os Geochronologic Data for Porphyry Deposits in the Yukon-Tanana Upland, Eastern Alaska

Rhenium-osmium (Re-Os) geochronology of molybdenite provides a tool to directly date mineralizing events in hydrothermal systems. In the Yukon-Tanana upland of eastern Alaska, numerous molybdenite-bearing porphyry occurrences are recognized. The deposits are related to middle and Late Cretaceous granitoids (Kreiner and others, 2019; 2020). Some of the porphyry districts have multiple superimposed
By
Alaska Science Center

Data and results for GIS-based identification of areas that have resource potential for lode gold deposits in Alaska

This data release contains the analytical results and evaluated source data files of geospatial analyses for identifying areas in Alaska that may be prospective for different types of lode gold deposits, including orogenic, reduced-intrusion-related, epithermal, and gold-bearing porphyry. The spatial analysis is based on queries of statewide source datasets of aeromagnetic surveys, Alaska Geochemi
By
Alaska Science Center

GIS and Data Tables for Focus Areas for Potential Domestic Nonfuel Sources of Rare Earth Elements

In response to Executive Order 13817 of December 20, 2017, the U.S. Geological Survey (USGS) coordinated with the Bureau of Land Management (BLM) to identify 35 nonfuel minerals or mineral materials considered critical to the economic and national security of the United States (U.S.). Acquiring information on possible domestic sources of these critical minerals is the basis of the USGS Earth Mappi
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Earth Mapping Resources Initiative (Earth MRI)
Children from the village of Elim, Alaska explore the beach outcrops with USGS geologists
Elim village children explore beach outcrops with USGS geologists
Elim village children explore beach outcrops with USGS geologists
Children from the village of Elim, Alaska explore the beach outcrops with USGS geologists

Elim village children explore beach outcrops with USGS geologists

Elim village children explore beach outcrops with USGS geologists

USGS geologists (Andy Allard, Beth Drewes-Todd and Alan Pongratz) investigating the rocks exposed on the beaches near the village of Elim with the trusty local guides and eager budding geologists. 

By
Alaska Science Center
Children from the village of Elim, Alaska explore the beach outcrops with USGS geologists

Elim village children explore beach outcrops with USGS geologists

Elim village children explore beach outcrops with USGS geologists

USGS geologists (Andy Allard, Beth Drewes-Todd and Alan Pongratz) investigating the rocks exposed on the beaches near the village of Elim with the trusty local guides and eager budding geologists. 

By
Alaska Science Center

Science and Products

Filter Total Items: 17

Critical minerals for a carbon-neutral future

The Earth Mapping Resources Initiative is filling data gaps and fostering more holistic understanding of critical mineral resources in the United States using a novel mineral systems framework.

Authors
Douglas C. Kreiner, Jane M. Hammarstrom, Warren C. Day
By
Alaska Science Center

Constraints on the genesis of Au veins in interior Alaska: Evidence from geochronology and vein textures

The origin of Au-bearing, low sulfide quartz veins in the Pogo and Tibbs Creek regions of interior Alaska remain enigmatic. Intrusion-related Au and mesozonal orogenic vein models have both been proposed (Thompson and Newberry, 2000; Rhys et al., 2003; Goldfarb et al., 2022; Dilworth et al., 2007). To date, studies of igneous geochronology and metamorphic timing have shown that gold veins formed b
Authors
Douglas C. Kreiner, William Thompson, Jonathan Caine, Ashleigh Ball, Christopher Holm-Denoma, Paul O'Sullivan, Holly J. Stein
By
Alaska Science Center

Geochronology and mapping constraints on the time-space evolution of the igneous and hydrothermal systems in the Taurus Cu-Mo district, eastern Alaska

The Taurus porphyry Cu-Mo district contains four mineralized porphyry centers in the eastern interior of Alaska. All four centers were emplaced during a magmatic episode that spanned from ca. 72 to 67 Ma, with seven distinct igneous suites. Each igneous suite resulted in hydrothermal alteration and mineralization, with younger pulses overprinting older pulses. Each magmatic-hydrothermal system is
Authors
Douglas C. Kreiner, Christopher Holm-Denoma, Laura Pianowski, Zachary Flood, David J. Stevenson, Garth E. Graham, Jorge A. Vazquez, Robert A Creaser
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center

National map of focus areas for potential critical mineral resources in the United States

Introduction The U.S. Geological Survey (USGS) launched the Earth Mapping Resources Initiative (Earth MRI) to modernize the surface and subsurface geologic mapping of the United States, with a focus on identifying areas that may have the potential to contain critical mineral resources. EarthMRI can inform strategies to ensure secure and reliable domestic critical mineral supplies for the United St
Authors
Jane M. Hammarstrom, Douglas C. Kreiner, Connie L. Dicken, Laurel G. Woodruff
By
Mineral Resources Program, Alaska Science Center, Geology, Energy & Minerals Science Center, Earth Mapping Resources Initiative (Earth MRI)

Yukon River incision drove organic carbon burial in the Bering Sea during global climate changes at 2.6 and 1 Ma

River erosion affects the carbon cycle and thus climate by exporting terrigenous carbon to seafloor sediment and by nourishing CO2-consuming marine life. The Yukon River–Bering Sea system preserves rare source-to-sink records of these processes across profound changes in global climate during the past 5 million years (Ma). Here, we expand the terrestrial erosion record by dating terraces along the
Authors
Adrian Bender, Richard O. Lease, Lee B. Corbett, Paul R. Bierman, Marc W. Caffee, James V. Jones, Douglas C. Kreiner
By
Alaska Science Center

Marine minerals in Alaska — A review of coastal and deep-ocean regions

Minerals occurring in marine environments span the globe and encompass a broad range of mineral categories, forming within varied geologic and oceanographic settings. They occur in coastal regions, either from the continuation or mechanical reworking of terrestrial mineralization, as well as in the deep ocean, from diagenetic, hydrogenetic, and hydrothermal processes. The oceans cover most of the

Authors
Amy Gartman, Kira Mizell, Douglas C. Kreiner
By
Ecosystems Mission Area, Coastal and Marine Hazards and Resources Program, Alaska Science Center, Pacific Coastal and Marine Science Center, Marine Minerals Laboratory

Alaska focus area definition for data acquisition for potential domestic sources of critical minerals in Alaska for antimony, barite, beryllium, chromium, fluorspar, hafnium, magnesium, manganese, uranium, vanadium, and zirconium

Phase 3 of the Earth Mapping Resources Initiative (Earth MRI) focuses on geologic belts that are favorable for hosting mineral systems that could contain the critical minerals antimony, barite, beryllium, chromium, fluorspar, hafnium, magnesium, manganese, uranium, vanadium, and zirconium. Prior phases of the Earth MRI program in Alaska focused only on rare earth elements, aluminum, cobalt, graphi
Authors
Douglas C. Kreiner, James V. Jones, George N. Case
By
Energy and Minerals Mission Area, Mineral Resources Program, Alaska Science Center, Earth Mapping Resources Initiative (Earth MRI)

Geospatial analysis delineates lode gold prospectivity in Alaska

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 analyses successfully identify areas containing known lode gold occurrences, expand areas of high prospectivity around known occurrences, improve the precision of deline
Authors
Susan M. Karl, Douglas C. Kreiner, George N. D. Case, Keith A. Labay
By
Ecosystems Mission Area, Alaska Science Center

GIS-based identification of areas that have resource potential for lode gold in Alaska

Several comprehensive, data-driven geographic information system (GIS) analyses were conducted to assess prospectivity for lode gold in Alaska. These analyses use available geospatial datasets of lithologic, geochemical, mineral occurrence, and geophysical data to build models for recognizing different types of gold deposits within physiographic units defined by stream drainage basins that are app
Authors
Susan M. Karl, Douglas C. Kreiner, George N. D. Case, Keith A. Labay, Nora B. Shew, Matthew Granitto, Bronwen Wang, Eric D. Anderson
By
Ecosystems Mission Area, Energy and Minerals Mission Area, Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Deposit classification scheme for the Critical Minerals Mapping Initiative Global Geochemical Database

A challenge for the global economy is to meet the growing demand for commodities used in today’s advanced technologies. Critical minerals are commodities (for example, elements, compounds, minerals) deemed vital to the economic and national security of individual countries that are vulnerable to supply disruption. The national geological agencies of Australia, Canada, and the United States recentl
Authors
Albert H. Hofstra, Vladimir Lisitsin, Louise Corriveau, Suzanne Paradis, Jan Peter, Kathleen Lauzière, Christopher Lawley, Michael Gadd, Jean-Luc Pilote, Ian Honsberger, Evgeniy Bastrakov, David Champion, Karol Czarnota, Michael Doublier, David Huston, Oliver Raymond, Simon VanDerWielen, Poul Emsbo, Matthew Granitto, Douglas C. Kreiner
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Tectonic and magmatic controls on the metallogenesis of porphyry deposits in Alaska

Porphyry Cu and Mo deposits and occurrences are found throughout Alaska; they formed episodically during repeated subduction and arc-continent collisions spanning the Silurian to Quaternary. Porphyry systems occur in continental-margin and island arcs, which are broadly grouped into pre-accretionary or post-accretionary arcs. Pre-Mesozoic occurrences formed in continental or island arcs prior to a
Authors
Douglas C. Kreiner, James V. Jones, Karen D. Kelley, Garth E. Graham
By
Ecosystems Mission Area, Climate Adaptation Science Centers, Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

Ancient rivers and critical minerals in eastern Alaska

No abstract available.
Authors
Adrian Bender, Richard O. Lease, James V. Jones, Douglas C. Kreiner
By
Alaska Science Center

Non-USGS Publications**

Kreiner, Douglas C., and Mark D. Barton. "Sulfur-poor intense acid hydrothermal alteration: A distinctive hydrothermal environment." Ore Geology Reviews 88 (2017): 174-187.
Kreiner, Douglas C., and Mark D. Barton. "High-level alteration in iron-oxide (-Cu-Au)(’IOCG’) vein systems, examples near Copiapó Chile." Society for Geology Applied to Mineral Deposits, 11th, Antofagasta, Chile, Extended Abstracts (2011): 497-499.
Barton, Mark D., James D. Girardi, Douglas C. Kreiner, Eric Seedorff, Lukas Zurcher, John H. Dilles, Gordon B. Haxel, David A. Johnson, R. C. Steininger, and W. M. Pennell. "Jurassic igneous-related metallogeny of southwestern North America." Great Basin Evolution and Metallogeny: Reno, Nevada, Geological Society of Nevada (2011): 373-396.

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

link
Half-meter-thick quartz veins cut across outcrops of granitic gneiss on Divide Mountain along the Alaska-Yukon border

Alaska Earth Mapping Resources Initiative (Earth MRI)

Our objective is to provide a strategic framework for planning, coordination, and execution of the USGS Earth Mapping Resources Initiative (Earth MRI) in Alaska. Earth MRI aims to improve knowledge of the U.S. geologic framework through new geological and geophysical mapping and to identify areas that have the potential to contain undiscovered critical mineral resources.
By
Mineral Resources Program, Alaska Science Center, Earth Mapping Resources Initiative (Earth MRI)
link

Alaska Earth Mapping Resources Initiative (Earth MRI)

Our objective is to provide a strategic framework for planning, coordination, and execution of the USGS Earth Mapping Resources Initiative (Earth MRI) in Alaska. Earth MRI aims to improve knowledge of the U.S. geologic framework through new geological and geophysical mapping and to identify areas that have the potential to contain undiscovered critical mineral resources.
Learn More
link
Half-meter-thick quartz veins cut across outcrops of granitic gneiss on Divide Mountain along the Alaska-Yukon border

Tectonic and Metallogenic Evolution of the Yukon-Tanana Upland, Alaska

The Yukon-Tanana upland in eastern interior Alaska is a geologically complex block containing deposits of base-metal, platinum-group-element, and gold-silver-copper mineralization. It also hosts numerous mineral systems that are known or suspected to contain critical minerals.
By
Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center
link

Tectonic and Metallogenic Evolution of the Yukon-Tanana Upland, Alaska

The Yukon-Tanana upland in eastern interior Alaska is a geologically complex block containing deposits of base-metal, platinum-group-element, and gold-silver-copper mineralization. It also hosts numerous mineral systems that are known or suspected to contain critical minerals.
Learn More
link
Darby Mountain outcrop of quartz monzonite towards the contact between the pluton and Paleozoic marbles

Petrology, Tectonic Setting, and Potential for Concentration of Rare Earth Elements (REE) and High Field Strength Elements (HFSE) in the High-K Darby and Kachauik Plutons, Seward Peninsula, Alaska

One of the geologic environments that host rare earth and other critical and strategic element deposits are alkaline intrusive rocks.
By
Mineral Resources Program, Alaska Science Center
link

Petrology, Tectonic Setting, and Potential for Concentration of Rare Earth Elements (REE) and High Field Strength Elements (HFSE) in the High-K Darby and Kachauik Plutons, Seward Peninsula, Alaska

One of the geologic environments that host rare earth and other critical and strategic element deposits are alkaline intrusive rocks.
Learn More

U-Pb Ages, Hafnium Isotope Ratios, and Trace Element Concentrations by Laser-ablation Split Stream (LASS) Analysis of Igneous and Metamorphic Zircons from the Yukon-Tanana Upland, Eastern Alaska

This data set contains U-Pb isotopic data and ages, Hf isotope data, and trace element concentrations of zircon from igneous rocks collected from the Yukon-Tanana Upland, eastern Alaska. The sample suite was collected as part of geological mapping and supporting geochemical and geochronological analysis conducted from 2013 to 2019. Zircon was obtained from these igneous rocks to determine the crys
By
Alaska Science Center

Whole Rock Major and Trace Element Chemistry for Igneous and Metamorphic Rocks from the Yukon-Tanana Upland, Alaska

This data set consists of one table containing whole-rock geochemistry data for 753 igneous and metamorphic rocks from the Yukon-Tanana upland of eastern interior Alaska, collected between 2013 and 2019. All materials were analyzed by ALS Global, between 2014 and 2020, by a range of different techniques, so multiple unique entries for a given element relate to different analytical methods or prepa
By
Alaska Science Center

U-Pb zircon data for igneous units related to mineralization in the eastern Yukon-Tanana upland, eastern Alaska

From 2017-2019, framework metallogenic studies were completed in the eastern Yukon-Tanana upland in eastern Alaska. Numerous previously undated plutons known or suspected to contain components of porphyry, epithermal, and intrusion-related gold systems and associated deposit types were sampled for age and zircon trace element determinations between the Black Mountain area and the Yukon border, nor
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center

Zircon Trace Element Data for Igneous Units Related to Mineralization in the Eastern Yukon-Tanana Upland and nearby areas, Eastern Alaska

From 2017-2019, framework metallogenic studies were completed in the eastern Yukon-Tanana upland in eastern Alaska. Numerous previously undated plutons known or suspected to contain components of porphyry, epithermal, and intrusion-related gold systems and associated deposit types were sampled for age and zircon trace element determinations between the Black Mountain area and the Yukon border, nor
By
Alaska Science Center

Re-Os Geochronologic Data for Porphyry Deposits in the Yukon-Tanana Upland, Eastern Alaska

Rhenium-osmium (Re-Os) geochronology of molybdenite provides a tool to directly date mineralizing events in hydrothermal systems. In the Yukon-Tanana upland of eastern Alaska, numerous molybdenite-bearing porphyry occurrences are recognized. The deposits are related to middle and Late Cretaceous granitoids (Kreiner and others, 2019; 2020). Some of the porphyry districts have multiple superimposed
By
Alaska Science Center

Data and results for GIS-based identification of areas that have resource potential for lode gold deposits in Alaska

This data release contains the analytical results and evaluated source data files of geospatial analyses for identifying areas in Alaska that may be prospective for different types of lode gold deposits, including orogenic, reduced-intrusion-related, epithermal, and gold-bearing porphyry. The spatial analysis is based on queries of statewide source datasets of aeromagnetic surveys, Alaska Geochemi
By
Alaska Science Center

GIS and Data Tables for Focus Areas for Potential Domestic Nonfuel Sources of Rare Earth Elements

In response to Executive Order 13817 of December 20, 2017, the U.S. Geological Survey (USGS) coordinated with the Bureau of Land Management (BLM) to identify 35 nonfuel minerals or mineral materials considered critical to the economic and national security of the United States (U.S.). Acquiring information on possible domestic sources of these critical minerals is the basis of the USGS Earth Mappi
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Earth Mapping Resources Initiative (Earth MRI)
Children from the village of Elim, Alaska explore the beach outcrops with USGS geologists
Elim village children explore beach outcrops with USGS geologists
Elim village children explore beach outcrops with USGS geologists
Children from the village of Elim, Alaska explore the beach outcrops with USGS geologists

Elim village children explore beach outcrops with USGS geologists

Elim village children explore beach outcrops with USGS geologists

USGS geologists (Andy Allard, Beth Drewes-Todd and Alan Pongratz) investigating the rocks exposed on the beaches near the village of Elim with the trusty local guides and eager budding geologists. 

By
Alaska Science Center
Children from the village of Elim, Alaska explore the beach outcrops with USGS geologists

Elim village children explore beach outcrops with USGS geologists

Elim village children explore beach outcrops with USGS geologists

USGS geologists (Andy Allard, Beth Drewes-Todd and Alan Pongratz) investigating the rocks exposed on the beaches near the village of Elim with the trusty local guides and eager budding geologists. 

By
Alaska Science Center
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