Julie A Dumoulin, Ph.D.
Carbonate sedimentology, circumpolar correlation, Paleozoic and Mesozoic stratigraphy of central and northern Alaska
Professional Experience
1979 - Present Research Geologist, USGS, Anchorage AK
Education and Certifications
Ph.D. 1991 University of California, Santa Cruz CA Geology
M.S. 1979 University of Wisconsin, Madison WI Geology
B.S. 1976 University of Wisconsin, Madison WI Geology/Anthropology
Affiliations and Memberships*
Alaskan Geological Society
American Association of Petroleum Geologists
Geological Society of America
International Association of Sedimentologists
SEPM (Society for Sedimentary Geology)
Honors and Awards
Graduate Fellowship, National Science Foundation, 1976
Graduate Training Program Award, USGS, 1985
USGS STAR awards for research and service contributions, 1997, 1999 (2), 2005, 2011
USGS Performance awards: 2010, 2011, 2012, 2013
Science and Products
Zircon U-Pb, Organic Carbon Isotope, and Geochemistry Data from the Hue Shale and Canning Formation, Arctic Alaska, 2025 Zircon U-Pb, Organic Carbon Isotope, and Geochemistry Data from the Hue Shale and Canning Formation, Arctic Alaska, 2025
This dataset contains results from three stratigraphic sections of the Hue Shale located in and adjacent to the Arctic National Wildlife Refuge in northeastern Alaska. Sample heights were measured with a tape measure in continuous successions. Zircon grains from volcanic ashes were analyzed via laser ablation at the University of California, Santa Barbara (UCSB) using a Photon Machines...
Total organic carbon, programmed temperature pyrolysis, vitrinite reflectance, organic carbon isotopes, elemental, and spectral gamma-ray data from the Cretaceous Hue Shale (Jago River outcrop), Arctic Alaska, USA Total organic carbon, programmed temperature pyrolysis, vitrinite reflectance, organic carbon isotopes, elemental, and spectral gamma-ray data from the Cretaceous Hue Shale (Jago River outcrop), Arctic Alaska, USA
Chemostratigraphic signatures were recorded in a 113 m thick outcrop of late Albian to early Campanian (~103–82 Ma) Hue Shale exposed on the bank of the Jago River in the coastal plain (“1002 Area”) of the Arctic National Wildlife Refuge (ANWR), Alaska. Spectral gamma-ray (SGR) data was collected in situ across the Jago River section. A total of 250 samples consisting of predominantly...
Carbon Isotopes, Total Organic Carbon, Programmed Pyrolysis, Volcanic Zircon U-Pb, and Geochemistry Data from the Hue Shale, Arctic Alaska - 2024 Carbon Isotopes, Total Organic Carbon, Programmed Pyrolysis, Volcanic Zircon U-Pb, and Geochemistry Data from the Hue Shale, Arctic Alaska - 2024
This dataset contains results from a stratigraphic section of the Hue Shale located along the Jago River in the Arctic National Wildlife Refuge at 69.9099, -143.3947 (WGS84). Sample heights were measured with a tape measure in a continuous succession. Zircon grains from volcanic ashes were analyzed via laser ablation at either the University of California, Santa Barbara (UCSB) or the...
Geochemical Data from Selected Triassic Rock Samples in Northeastern Alaska Geochemical Data from Selected Triassic Rock Samples in Northeastern Alaska
This set of data files contains analyses of samples representing Triassic units (Shublik and Ivishak Formations and Karen Creek Sandstone) in Alaska. The samples were collected from 20 outcrop localities in northeastern Alaska. The data set includes total organic carbon (TOC) and geochemical data from inductively coupled plasma-optical emission spectroscopy-mass spectroscopy (ICP-OES-MS)...
U-Pb Isotopic Data and Ages of Detrital Zircon from Selected Rocks from northern Yukon, Canada U-Pb Isotopic Data and Ages of Detrital Zircon from Selected Rocks from northern Yukon, Canada
This data set contains U-Pb isotopic data and associated ages of detrital zircon from sedimentary and metasedimentary rocks collected in northern Yukon, Canada. The samples were originally collected as part of geological mapping and research conducted by the Geological Survey of Canada. They were recovered from archived collections and sent to the U.S. Geological Survey for analysis of...
Whole Rock Major and Trace Element Chemistry for Igneous Rocks from Tyonek, Lime Hills, Talkeetna, McGrath, and Lake Clark Quadrangles, Western Alaska Range, Alaska Whole Rock Major and Trace Element Chemistry for Igneous Rocks from Tyonek, Lime Hills, Talkeetna, McGrath, and Lake Clark Quadrangles, Western Alaska Range, Alaska
This data release contains whole rock major and trace element data for 69 igneous rock samples collected from the Western Alaska Range between 2011 and 2012. The Series field relates to chronological units discussed in Jones et al. (2021). Descriptions are from original collector notebooks and are provided here for informational purposes.
Bedrock geologic map of the Seward Peninsula, Alaska, and accompanying conodont data Bedrock geologic map of the Seward Peninsula, Alaska, and accompanying conodont data
This 1:500,000-scale geologic map depicts the bedrock geology of Seward Peninsula, western Alaska, on the North American side of the Bering Strait. The map encompasses all of the Teller, Nome, Solomon, and Bendeleben 1:250,000-scale quadrangles, and parts of the Shishmaref, Kotzebue, Candle, and Norton Bay 1:250,000-scale quadrangles (sh. 1; sh. 2). The geologic map is presented on Sheet...
Geologic and Fossil Locality Maps of the West-Central Part of the Howard Pass Quadrangle and Part of the Adjacent Misheguk Mountain Quadrangle, Western Brooks Range, Alaska Geologic and Fossil Locality Maps of the West-Central Part of the Howard Pass Quadrangle and Part of the Adjacent Misheguk Mountain Quadrangle, Western Brooks Range, Alaska
The map depicts the field distribution and contact relations between stratigraphic units, the tectonic relations between major stratigraphic sequences, and the detailed internal structure of these sequences. The stratigraphic sequences formed in a variety of continental margin depositional environments, and subsequently underwent a complexde formational history of imbricate thrust...
Filter Total Items: 95
Chemostratigraphy of the Cretaceous Hue Shale in Arctic Alaska: Exploring paleoceanographic controls on trace element enrichment, organic matter accumulation, and source-rock evolution Chemostratigraphy of the Cretaceous Hue Shale in Arctic Alaska: Exploring paleoceanographic controls on trace element enrichment, organic matter accumulation, and source-rock evolution
We document chemostratigraphy in an outcrop of late Albian to early Campanian (∼103–82 Ma) marine source rocks to better understand paleoenvironmental controls on trace element (TE) enrichment and organic matter accumulation in the distal Colville foreland basin of Arctic Alaska and how those drivers are linked to arc volcanism and successions of Cretaceous oceanographic and climatic
Authors
Palma J. Botterell, Margaret M. Sanders, David W. Houseknecht, Richard O. Lease, William A. Rouse, Katherine J. Whidden, Julie A. Dumoulin, Rebecca A. Smith, Christina A. DeVera, Brett J. Valentine
Facies variation within outcrops of the Triassic Shublik Formation, northeastern Alaska Facies variation within outcrops of the Triassic Shublik Formation, northeastern Alaska
The Shublik Formation (Middle to Upper Triassic) is a heterogeneous unit that is a major hydrocarbon source rock in northern Alaska and the largest known Triassic phosphate accumulation in the world. This formation, which occurs in the subsurface and crops out within the Arctic Alaska basin, was deposited on a gently sloping ramp along the northwestern Laurentian margin. In this study...
Authors
Julie A. Dumoulin, Katherine J. Whidden, William A. Rouse, Christina A. DeVera
Arctic Alaska deepwater organic carbon burial and environmental changes during the late Albian–early Campanian (103–82 Ma) Arctic Alaska deepwater organic carbon burial and environmental changes during the late Albian–early Campanian (103–82 Ma)
The middle Cretaceous greenhouse period experienced profound environmental change including episodes of enhanced global burial of organic carbon marked by carbon isotopic excursions (CIEs). However, the role and response of polar regions like the newly formed, partially enclosed Arctic Ocean Basin during middle Cretaceous carbon burial remains enigmatic. We present the first Arctic...
Authors
Richard O. Lease, Katherine J. Whidden, Julie A. Dumoulin, David W. Houseknecht, Palma J. Botterell, Mark F. Dreier, Neil Patrick Griffis, Roland Mundil, Andrew R.C. Kylander-Clark, Margaret M. Sanders, John W. Counts, Jean Self-Trail, Jared T. Gooley, William A. Rouse, Rebecca A. Smith, Christina A. DeVera
Ordovician geology of Alaska Ordovician geology of Alaska
Ordovician rocks, found in northern, east-central, interior and southern Alaska, formed in a variety of depositional and palaeogeographic settings. Shallow- and deep-water strata deposited along the northwestern Laurentian margin occur in east-central Alaska (Yukon River area) and probably correlative rocks crop out to the north in the Porcupine River area. Ordovician strata elsewhere in...
Authors
Julie A. Dumoulin, Justin V. Strauss, John Repetski
Biosiliceous, organic-rich, and phosphatic facies of Triassic strata of northwest Alaska: Transect across a high-latitude, low-angle continental margin Biosiliceous, organic-rich, and phosphatic facies of Triassic strata of northwest Alaska: Transect across a high-latitude, low-angle continental margin
The Shublik Formation (Middle and Upper Triassic) is a mixed siliciclastic-carbonate-phosphatic unit in northern Alaska. It generated oil found in Prudhoe Bay and other accumulations and is a prospective self-sourced resource play on Alaska’s North Slope. Its distal, deeper-water equivalent—the Otuk Formation—consists largely of radiolarian chert, mudstone, and limestone and contains...
Authors
Julie A. Dumoulin, Katherine J. Whidden, William A. Rouse, Richard O. Lease, Adam Boehlke, Paul O’Sullivan
Detrital zircon ages from upper Paleozoic–Triassic clastic strata on St. Lawrence Island, Alaska: An enigmatic component of the Arctic Alaska–Chukotka microplate Detrital zircon ages from upper Paleozoic–Triassic clastic strata on St. Lawrence Island, Alaska: An enigmatic component of the Arctic Alaska–Chukotka microplate
New lithologic and detrital zircon (DZ) U-Pb data from Devonian–Triassic strata on St. Lawrence Island in the Bering Sea and from the western Brooks Range of Alaska suggest affinities between these two areas. The Brooks Range constitutes part of the Arctic Alaska–Chukotka microplate, but the tectonic and paleogeographic affinities of St. Lawrence Island are unknown or at best speculative...
Authors
Jeffrey M. Amato, Julie A. Dumoulin, Eric S. Gottlieb, Thomas E. Moore
Science and Products
Zircon U-Pb, Organic Carbon Isotope, and Geochemistry Data from the Hue Shale and Canning Formation, Arctic Alaska, 2025 Zircon U-Pb, Organic Carbon Isotope, and Geochemistry Data from the Hue Shale and Canning Formation, Arctic Alaska, 2025
This dataset contains results from three stratigraphic sections of the Hue Shale located in and adjacent to the Arctic National Wildlife Refuge in northeastern Alaska. Sample heights were measured with a tape measure in continuous successions. Zircon grains from volcanic ashes were analyzed via laser ablation at the University of California, Santa Barbara (UCSB) using a Photon Machines...
Total organic carbon, programmed temperature pyrolysis, vitrinite reflectance, organic carbon isotopes, elemental, and spectral gamma-ray data from the Cretaceous Hue Shale (Jago River outcrop), Arctic Alaska, USA Total organic carbon, programmed temperature pyrolysis, vitrinite reflectance, organic carbon isotopes, elemental, and spectral gamma-ray data from the Cretaceous Hue Shale (Jago River outcrop), Arctic Alaska, USA
Chemostratigraphic signatures were recorded in a 113 m thick outcrop of late Albian to early Campanian (~103–82 Ma) Hue Shale exposed on the bank of the Jago River in the coastal plain (“1002 Area”) of the Arctic National Wildlife Refuge (ANWR), Alaska. Spectral gamma-ray (SGR) data was collected in situ across the Jago River section. A total of 250 samples consisting of predominantly...
Carbon Isotopes, Total Organic Carbon, Programmed Pyrolysis, Volcanic Zircon U-Pb, and Geochemistry Data from the Hue Shale, Arctic Alaska - 2024 Carbon Isotopes, Total Organic Carbon, Programmed Pyrolysis, Volcanic Zircon U-Pb, and Geochemistry Data from the Hue Shale, Arctic Alaska - 2024
This dataset contains results from a stratigraphic section of the Hue Shale located along the Jago River in the Arctic National Wildlife Refuge at 69.9099, -143.3947 (WGS84). Sample heights were measured with a tape measure in a continuous succession. Zircon grains from volcanic ashes were analyzed via laser ablation at either the University of California, Santa Barbara (UCSB) or the...
Geochemical Data from Selected Triassic Rock Samples in Northeastern Alaska Geochemical Data from Selected Triassic Rock Samples in Northeastern Alaska
This set of data files contains analyses of samples representing Triassic units (Shublik and Ivishak Formations and Karen Creek Sandstone) in Alaska. The samples were collected from 20 outcrop localities in northeastern Alaska. The data set includes total organic carbon (TOC) and geochemical data from inductively coupled plasma-optical emission spectroscopy-mass spectroscopy (ICP-OES-MS)...
U-Pb Isotopic Data and Ages of Detrital Zircon from Selected Rocks from northern Yukon, Canada U-Pb Isotopic Data and Ages of Detrital Zircon from Selected Rocks from northern Yukon, Canada
This data set contains U-Pb isotopic data and associated ages of detrital zircon from sedimentary and metasedimentary rocks collected in northern Yukon, Canada. The samples were originally collected as part of geological mapping and research conducted by the Geological Survey of Canada. They were recovered from archived collections and sent to the U.S. Geological Survey for analysis of...
Whole Rock Major and Trace Element Chemistry for Igneous Rocks from Tyonek, Lime Hills, Talkeetna, McGrath, and Lake Clark Quadrangles, Western Alaska Range, Alaska Whole Rock Major and Trace Element Chemistry for Igneous Rocks from Tyonek, Lime Hills, Talkeetna, McGrath, and Lake Clark Quadrangles, Western Alaska Range, Alaska
This data release contains whole rock major and trace element data for 69 igneous rock samples collected from the Western Alaska Range between 2011 and 2012. The Series field relates to chronological units discussed in Jones et al. (2021). Descriptions are from original collector notebooks and are provided here for informational purposes.
Bedrock geologic map of the Seward Peninsula, Alaska, and accompanying conodont data Bedrock geologic map of the Seward Peninsula, Alaska, and accompanying conodont data
This 1:500,000-scale geologic map depicts the bedrock geology of Seward Peninsula, western Alaska, on the North American side of the Bering Strait. The map encompasses all of the Teller, Nome, Solomon, and Bendeleben 1:250,000-scale quadrangles, and parts of the Shishmaref, Kotzebue, Candle, and Norton Bay 1:250,000-scale quadrangles (sh. 1; sh. 2). The geologic map is presented on Sheet...
Geologic and Fossil Locality Maps of the West-Central Part of the Howard Pass Quadrangle and Part of the Adjacent Misheguk Mountain Quadrangle, Western Brooks Range, Alaska Geologic and Fossil Locality Maps of the West-Central Part of the Howard Pass Quadrangle and Part of the Adjacent Misheguk Mountain Quadrangle, Western Brooks Range, Alaska
The map depicts the field distribution and contact relations between stratigraphic units, the tectonic relations between major stratigraphic sequences, and the detailed internal structure of these sequences. The stratigraphic sequences formed in a variety of continental margin depositional environments, and subsequently underwent a complexde formational history of imbricate thrust...
Filter Total Items: 95
Chemostratigraphy of the Cretaceous Hue Shale in Arctic Alaska: Exploring paleoceanographic controls on trace element enrichment, organic matter accumulation, and source-rock evolution Chemostratigraphy of the Cretaceous Hue Shale in Arctic Alaska: Exploring paleoceanographic controls on trace element enrichment, organic matter accumulation, and source-rock evolution
We document chemostratigraphy in an outcrop of late Albian to early Campanian (∼103–82 Ma) marine source rocks to better understand paleoenvironmental controls on trace element (TE) enrichment and organic matter accumulation in the distal Colville foreland basin of Arctic Alaska and how those drivers are linked to arc volcanism and successions of Cretaceous oceanographic and climatic
Authors
Palma J. Botterell, Margaret M. Sanders, David W. Houseknecht, Richard O. Lease, William A. Rouse, Katherine J. Whidden, Julie A. Dumoulin, Rebecca A. Smith, Christina A. DeVera, Brett J. Valentine
Facies variation within outcrops of the Triassic Shublik Formation, northeastern Alaska Facies variation within outcrops of the Triassic Shublik Formation, northeastern Alaska
The Shublik Formation (Middle to Upper Triassic) is a heterogeneous unit that is a major hydrocarbon source rock in northern Alaska and the largest known Triassic phosphate accumulation in the world. This formation, which occurs in the subsurface and crops out within the Arctic Alaska basin, was deposited on a gently sloping ramp along the northwestern Laurentian margin. In this study...
Authors
Julie A. Dumoulin, Katherine J. Whidden, William A. Rouse, Christina A. DeVera
Arctic Alaska deepwater organic carbon burial and environmental changes during the late Albian–early Campanian (103–82 Ma) Arctic Alaska deepwater organic carbon burial and environmental changes during the late Albian–early Campanian (103–82 Ma)
The middle Cretaceous greenhouse period experienced profound environmental change including episodes of enhanced global burial of organic carbon marked by carbon isotopic excursions (CIEs). However, the role and response of polar regions like the newly formed, partially enclosed Arctic Ocean Basin during middle Cretaceous carbon burial remains enigmatic. We present the first Arctic...
Authors
Richard O. Lease, Katherine J. Whidden, Julie A. Dumoulin, David W. Houseknecht, Palma J. Botterell, Mark F. Dreier, Neil Patrick Griffis, Roland Mundil, Andrew R.C. Kylander-Clark, Margaret M. Sanders, John W. Counts, Jean Self-Trail, Jared T. Gooley, William A. Rouse, Rebecca A. Smith, Christina A. DeVera
Ordovician geology of Alaska Ordovician geology of Alaska
Ordovician rocks, found in northern, east-central, interior and southern Alaska, formed in a variety of depositional and palaeogeographic settings. Shallow- and deep-water strata deposited along the northwestern Laurentian margin occur in east-central Alaska (Yukon River area) and probably correlative rocks crop out to the north in the Porcupine River area. Ordovician strata elsewhere in...
Authors
Julie A. Dumoulin, Justin V. Strauss, John Repetski
Biosiliceous, organic-rich, and phosphatic facies of Triassic strata of northwest Alaska: Transect across a high-latitude, low-angle continental margin Biosiliceous, organic-rich, and phosphatic facies of Triassic strata of northwest Alaska: Transect across a high-latitude, low-angle continental margin
The Shublik Formation (Middle and Upper Triassic) is a mixed siliciclastic-carbonate-phosphatic unit in northern Alaska. It generated oil found in Prudhoe Bay and other accumulations and is a prospective self-sourced resource play on Alaska’s North Slope. Its distal, deeper-water equivalent—the Otuk Formation—consists largely of radiolarian chert, mudstone, and limestone and contains...
Authors
Julie A. Dumoulin, Katherine J. Whidden, William A. Rouse, Richard O. Lease, Adam Boehlke, Paul O’Sullivan
Detrital zircon ages from upper Paleozoic–Triassic clastic strata on St. Lawrence Island, Alaska: An enigmatic component of the Arctic Alaska–Chukotka microplate Detrital zircon ages from upper Paleozoic–Triassic clastic strata on St. Lawrence Island, Alaska: An enigmatic component of the Arctic Alaska–Chukotka microplate
New lithologic and detrital zircon (DZ) U-Pb data from Devonian–Triassic strata on St. Lawrence Island in the Bering Sea and from the western Brooks Range of Alaska suggest affinities between these two areas. The Brooks Range constitutes part of the Arctic Alaska–Chukotka microplate, but the tectonic and paleogeographic affinities of St. Lawrence Island are unknown or at best speculative...
Authors
Jeffrey M. Amato, Julie A. Dumoulin, Eric S. Gottlieb, Thomas E. Moore
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government