Adam M Hudson
I am an isotope geochemist focused on applying radiogenic and stable isotopes to understanding hydrologic systems in the present and geologic past. My main research goal is to understand what affects water availability in arid regions.
My research focuses on two parallel tracks: 1) Tracing water sources in modern surface and groundwater systems and 2) reconstructing landscape evolution through geologic mapping and isotope study of surficial deposits of lakes, rivers, soils, and desert springs and wetlands. I have done research in Tibet, the Andes, and the western United States. My current research is focused in the US Great Basin, Alaska, and the southern Rocky Mountains of Colorado and New Mexico.
Professional Experience
2020-present: Principal Investigator of Denver Radiogenic Isotope Lab, U.S. Geological Survey, Geosciences and Environmental Change Science Center, Lakewood, CO
2016-present: Isotope Geochemist, U.S. Geological Survey, Geosciences and Environmental Change Science Center, Lakewood, CO
Education and Certifications
2015: PhD, Geosciences/Geochemistry, University of Arizona, Tucson, AZ
2011: MS, Geosciences/Geochemistry, University of Arizona, Tucson, AZ
Science and Products
Filter Total Items: 18
Isotopic, geochronologic and soil temperature data for Holocene and late Pleistocene soil carbonates of the San Luis Valley, Colorado and New Mexico, USA Isotopic, geochronologic and soil temperature data for Holocene and late Pleistocene soil carbonates of the San Luis Valley, Colorado and New Mexico, USA
This data release contains radiocarbon dates and clumped isotope ratios for soil carbonates as well as observed soil temperatures for study sites in the San Luis Valley, Colorado and New Mexico, USA. The companion publication can be found at https://doi.org/10.1029/2023GC011221.
Geochemical data for post-fire surface water, streambed sediment, and soils from areas affected by the 2018 Camp Fire, Butte County, California Geochemical data for post-fire surface water, streambed sediment, and soils from areas affected by the 2018 Camp Fire, Butte County, California
During November 2018, the Camp Fire burned more than 150,000 acres in Butte County, California. The fire was the deadliest and most destructive in California history, destroying more than 18,000 structures and causing at least 85 fatalities. The U.S. Geological Survey sampled surface water in areas affected by the Camp Fire, plus an unburned control site, during two post-fire sampling...
Surficial geologic map database of the Aztec 1-degree by 2-degree quadrangle, northern New Mexico and southern Colorado: Contributions to the National Geologic Map Surficial geologic map database of the Aztec 1-degree by 2-degree quadrangle, northern New Mexico and southern Colorado: Contributions to the National Geologic Map
This data release presents geologic map data for the surficial geology of the Aztec 1-degree by 2-degree quadrangle. The map area lies within two physiographic provinces of Fenneman (1928): the Southern Rocky Mountains province, and the Colorado Plateau province, Navajo section. Geologic mapping is mostly compiled from published geologic map data sources ranging from 1:24,000 to 1:250...
Surficial geologic map database of the Durango 1-degree by 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map Surficial geologic map database of the Durango 1-degree by 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map
This data release presents geologic map data for the surficial geology of the Durango 1-degree by 2-degree quadrangle and adjacent areas along the northern boundary of the quadrangle. The map area lies within two physiographic provinces of Fenneman (1928): the Southern Rocky Mountains province, and the Colorado Plateau province, Navajo section. Geologic mapping is mostly compiled from...
Geochemical and isotopic data from glendonites and surrounding sediment, Carter Creek, North Slope Alaska Geochemical and isotopic data from glendonites and surrounding sediment, Carter Creek, North Slope Alaska
The dataset consists of geochemical and isotopic data from fine-grained sediments and glendonite crystals collected at Carter Creek on the North Slope of Alaska. Total Organic Carbon (TOC) values in the measured section were found to range between 0.5 and 3.5%, with a shift towards lower values in the uppermost 5 m of the section. Stable isotopes (13C) in organic matter were relatively...
Isotope analyses (234U/238U, 87Sr/86Sr, δ13C, and δ18O) and U-series disequilibrium ages for speleothem, water, and rock samples associated with Fitton Cave, Buffalo National River, Arkansas, USA Isotope analyses (234U/238U, 87Sr/86Sr, δ13C, and δ18O) and U-series disequilibrium ages for speleothem, water, and rock samples associated with Fitton Cave, Buffalo National River, Arkansas, USA
This data release contains tabular data (comma-separated-value files) of natural radiogenic isotopes of strontium, uranium, and thorium for samples of modern water, speleothems, associated with Fitton Cave, north central Arkansas, as well as rock that host the cave deposits. In addition, U-series ages (230Th/U dates and model 234U/238U dates) are calculated from those data for subsamples...
Filter Total Items: 21
Triple oxygen isotope compositions of globally distributed soil carbonates record widespread evaporation of soil waters Triple oxygen isotope compositions of globally distributed soil carbonates record widespread evaporation of soil waters
The stable isotopic composition of pedogenic carbonates is central to many studies of past climate and topography, providing a basis for our understanding of Earth's terrestrial history. A core assumption of many applications of oxygen isotope values (δ18O) of pedogenic carbonate is that they reflect the δ18O value of precipitation (rain/snow). This assumption is violated if soil...
Authors
Julia Kelson, Tyler E. Huth, Benjamin Passey, Naomi Levin, Sierra Petersen, Paolo Ballato, Emily Beverly, Daniel Breecker, Gregory Hoke, Adam Hudson, Ji Haoyuan, Alexis Licht, Jay Quade
Paleohydrologic history of pluvial lake San Agustin, New Mexico: Tracking changing effective moisture in southwest North America through the last glacial transition Paleohydrologic history of pluvial lake San Agustin, New Mexico: Tracking changing effective moisture in southwest North America through the last glacial transition
Paleoclimate records across the Intermountain West region of North America show significant regional variation in timing and magnitude of wet conditions that accompanied the last glacial-interglacial transition. To understand the climate controls on paleohydrologic change, well-dated records are needed across the region. The Plains of San Agustin (New Mexico, USA) is a closed-basin...
Authors
Adam Hudson, Jay Quade, Vance Holliday, Brendan Fenerty, Jordon Bright, Harrison Gray, Shannon Mahan
The Seamless Integrated Geologic Mapping (SIGMa) extension to the Geologic Map Schema (GeMS) The Seamless Integrated Geologic Mapping (SIGMa) extension to the Geologic Map Schema (GeMS)
Geologic maps are the fundamental building blocks of surface and subsurface three-dimensional geologic framework models of the Earth’s crust. However, as the production and availability of geologic map databases continues to increase, inconsistent data models and the lack of synthesized, national geologic map data at scales appropriate for informed decision making negatively affect the...
Authors
Kenzie Turner, Jeremiah Workman, Joseph Colgan, Amy Gilmer, Margaret Berry, Samuel Johnstone, Kathleen Warrell, Marieke Dechesne, D. Paco VanSistine, Ren Thompson, Adam Hudson, Kristine Zellman, Donald Sweetkind, Chester Ruleman
Central Andean (28–34°S) flood record 0–25 ka from Salinas del Bebedero, Argentina Central Andean (28–34°S) flood record 0–25 ka from Salinas del Bebedero, Argentina
The Salinas del Bebedero occupies an isolated basin in the foreland of central Argentina at 33°S and was flooded repeatedly over past 25 ka. Isotopic evidence demonstrates that this flooding was due to overflow of the nearby Río Desaguadero with waters derived from the distant (≥300 km) central Andes between 28–34°S. Stratigraphic and shoreline evidence shows that floods occurred most...
Authors
Jay Quade, Elad Dente, Allison Cartwright, Adam Hudson, Sebastian Jimenez, David McGee
Evidence for humans in North America during the Last Glacial Maximum Evidence for humans in North America during the Last Glacial Maximum
Archaeologists and researchers in allied fields have long sought to understand human colonization of North America. When, how, and from where did people migrate, and what were the consequences of their arrival for the established fauna and landscape are enduring questions. Here, we present evidence from excavated surfaces of in situ human footprints from White Sands National Park (New...
Authors
Matthew Bennett, David Bustos, Jeffrey Pigati, Kathleen Springer, Thomas. Urban, Vance Holliday, Sally Reynolds, Marcin Budka, Jeffrey Honke, Adam Hudson, Brendan Fenerty, Clare Connelly, Patrick J. Martinez, Vincent Santucci, Daniel Odess
Reconstructing paleohydrology in the northwest Great Basin since the last deglaciation using Paisley Caves fish remains (Oregon, U.S.A.) Reconstructing paleohydrology in the northwest Great Basin since the last deglaciation using Paisley Caves fish remains (Oregon, U.S.A.)
The arid northwest Great Basin underwent substantial hydroclimate changes in the past 15,000 years, greatly affecting its desert ecosystems and prehistoric people. There are conflicting interpretations of the timing of hydrologic changes in this region, requiring more records to resolve the dominant climatic drivers. The Paisley Caves archaeological site, located near former pluvial Lake...
Authors
Adam Hudson, Meaghan Emery-Wetherell, Patrick Lubinski, Virginia Butler, Deanna Grimstead, Dennis Jenkins
Non-USGS Publications**
Licht, A., Quade, J., Kowler, A., de Los Santos, M., Hudson, A., Schauer, A., Huntington, K., Copeland, P., Lawton, T., 2017. Impact of the North American monsoon on isotope paleoaltimeters: implications for the paleoaltimetry of the American Southwest. American Journal of Science 317, 1-33.
Conroy, J.L, Hudson, A.M., Overpeck, J.T., Liu K.-B., Wang L., 2017. The primacy of multidecadal to centennial variability of late-Holocene forced change of the Asian Monsoon on the southern Tibetan Plateau. Earth and Planetary Science Letters 458, 337-348.
Hudson, A.M., Olsen, J.W., Quade, J., Lei G., Huth, T.E., Zhang H., 2016. A regional record of expanded Holocene wetlands and prehistoric human occupation from paleowetland deposits of the western Yarlung Tsangpo valley, Tibetan Plateau. Quaternary Research 86, 13-33.
Perreault, C., Boulanger, M.T., Hudson, A.M., Rhode, D., Madsen, D.B., Olsen, J.W., Steffen, M.L., Quade, J., Glascock, M.D., Brantingham, P.J., 2016. Characterization of obsidian from the Tibetan Plateau by XRF and NAA. Journal of Archaeological Science: Reports 5, 392-399.
Phillips, F.M., Kelly, M.A., Hudson, A.M., Stone, J.O.H., Schaefer, J., Marrero, S., Fifield, K., Finkel, R., Lowell, T.V., 2016, CRONUS-Earth calibrations samples from the Huancané moraines, Quelccaya Ice Cap, Peru. Quaternary Geochronology, 31, 220-236.
Phillips, F.M., Argento, D.C., Balco, G., Caffee, M.W., Clem, J., Dunai, T.J., Finkel, R., Goehring, B., Gosse, J.C., Hudson, A.M., Jull, A.J.T., Kelly, M.A., Kurz, M., Lal, D., Lifton, N., Marrero, S.M., Nishiizumi, K., Reedy, R.C., Schaefer, J., Stone, J.O.H., Swanson, T., Zreda, M.G., 2016, The CRONUS-Earth project: a synthesis. Quaternary Geochronology 31, 119-154.
Phillips, F.M., Argento, D.C., Bourles, D.L., Caffee, M.W., Dunai, T.J., Goehring, B., Gosse, J.C., Hudson, A.M., Jull, A.J.T., Kelly, M., Lifton, N., Marrero, S.M., Nishiizumi, K., Reedy, R.C., Stone, J.O.H., 2016, Where now? Reflections on future directions for cosmogenic nuclide research from the CRONUS Projects. Quaternary Geochronology 31, 155-159.
Hudson, A.M., Quade, J., Huth, T.E., Lei G., Cheng H., Edwards, R.L., Olsen, J.W., and Zhang H., 2015, Lake level reconstruction for 12.8-2.3 ka for the Ngangla Ring Tso closed-basin lake system, southwest Tibetan Plateau. Quaternary Research 83, 66-79.
Huth, T.E., Hudson, A.M., Quade J., Lei G., and Zhang H., 2015, Paleohydrologic reconstruction of Holocene climate 11.5-5.0 ka based on shoreline dating and hydrologic budget modeling of Baqan Tso, southwestern Tibetan Plateau. Quaternary Research 83, 80-93.
Grimstead, D.N., Reynolds, A.C., Hudson, A.M., Akins, N.J., Betancourt, J.L., 2015, Low 87Sr/86Sr variance in turkey remains reveal domestication at Chaco Canyon. Journal of Archaeological Methods and Theory 23, 127-149
Hudson, A.M., Olsen, J.W., and Quade, J., 2014, Radiocarbon dating of interdune paleowetland deposits to constrain the age of mid- to Late Holocene microlithic artifacts from the Zhongba site, southwestern Qinghai-Tibet Plateau. Geoarchaeology 29, 33-46.
Huntington, K.W., Saylor, J., Quade, J., and Hudson, A.M., 2015, New constraints on Tibetan Plateau uplift from carbonate clumped isotope thermometry. Geological Society of America Bulletin 127, 181-199.
Kelly, M.A., Lowell, T.V., Applegate, P.J., Phillips, F.M., Schaefer, J.M., Smith, C.A., Kim, H., Leonard, K., and Hudson, A.M., 2015, A locally calibrated late glacial 10Be production rate from a low-latitude, high-altitude site in the Peruvian Andes: Quaternary Geochronology 26, 70-85
Hudson, A.M., and Quade, J., 2013, Long-term asymmetry in monsoon climate on the Tibetan Plateau: Geology 41, 351-354.
Kelly, M.A., Lowell, T.V., Applegate, P.J., Smith, C.A., Phillips, F.M., and Hudson, A.M., 2012, Late glacial fluctuations of Quelccaya Ice Cap, southeastern Peru: Geology 40, 991-994.
Pelletier, J.D., Engelder, T.M., Comeau, D., Hudson, A., Leclerc, M., Youberg, A., and Diniega, S., 2009. Tectonic and structural control of fluvial channel morphology in metamorphic core complexes: The example of the Catalina-Rincon core complex, Arizona, Geosphere, 5, 363-384.
**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.
Science and Products
Filter Total Items: 18
Isotopic, geochronologic and soil temperature data for Holocene and late Pleistocene soil carbonates of the San Luis Valley, Colorado and New Mexico, USA Isotopic, geochronologic and soil temperature data for Holocene and late Pleistocene soil carbonates of the San Luis Valley, Colorado and New Mexico, USA
This data release contains radiocarbon dates and clumped isotope ratios for soil carbonates as well as observed soil temperatures for study sites in the San Luis Valley, Colorado and New Mexico, USA. The companion publication can be found at https://doi.org/10.1029/2023GC011221.
Geochemical data for post-fire surface water, streambed sediment, and soils from areas affected by the 2018 Camp Fire, Butte County, California Geochemical data for post-fire surface water, streambed sediment, and soils from areas affected by the 2018 Camp Fire, Butte County, California
During November 2018, the Camp Fire burned more than 150,000 acres in Butte County, California. The fire was the deadliest and most destructive in California history, destroying more than 18,000 structures and causing at least 85 fatalities. The U.S. Geological Survey sampled surface water in areas affected by the Camp Fire, plus an unburned control site, during two post-fire sampling...
Surficial geologic map database of the Aztec 1-degree by 2-degree quadrangle, northern New Mexico and southern Colorado: Contributions to the National Geologic Map Surficial geologic map database of the Aztec 1-degree by 2-degree quadrangle, northern New Mexico and southern Colorado: Contributions to the National Geologic Map
This data release presents geologic map data for the surficial geology of the Aztec 1-degree by 2-degree quadrangle. The map area lies within two physiographic provinces of Fenneman (1928): the Southern Rocky Mountains province, and the Colorado Plateau province, Navajo section. Geologic mapping is mostly compiled from published geologic map data sources ranging from 1:24,000 to 1:250...
Surficial geologic map database of the Durango 1-degree by 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map Surficial geologic map database of the Durango 1-degree by 2-degree quadrangle, southern Colorado: Contributions to the National Geologic Map
This data release presents geologic map data for the surficial geology of the Durango 1-degree by 2-degree quadrangle and adjacent areas along the northern boundary of the quadrangle. The map area lies within two physiographic provinces of Fenneman (1928): the Southern Rocky Mountains province, and the Colorado Plateau province, Navajo section. Geologic mapping is mostly compiled from...
Geochemical and isotopic data from glendonites and surrounding sediment, Carter Creek, North Slope Alaska Geochemical and isotopic data from glendonites and surrounding sediment, Carter Creek, North Slope Alaska
The dataset consists of geochemical and isotopic data from fine-grained sediments and glendonite crystals collected at Carter Creek on the North Slope of Alaska. Total Organic Carbon (TOC) values in the measured section were found to range between 0.5 and 3.5%, with a shift towards lower values in the uppermost 5 m of the section. Stable isotopes (13C) in organic matter were relatively...
Isotope analyses (234U/238U, 87Sr/86Sr, δ13C, and δ18O) and U-series disequilibrium ages for speleothem, water, and rock samples associated with Fitton Cave, Buffalo National River, Arkansas, USA Isotope analyses (234U/238U, 87Sr/86Sr, δ13C, and δ18O) and U-series disequilibrium ages for speleothem, water, and rock samples associated with Fitton Cave, Buffalo National River, Arkansas, USA
This data release contains tabular data (comma-separated-value files) of natural radiogenic isotopes of strontium, uranium, and thorium for samples of modern water, speleothems, associated with Fitton Cave, north central Arkansas, as well as rock that host the cave deposits. In addition, U-series ages (230Th/U dates and model 234U/238U dates) are calculated from those data for subsamples...
Filter Total Items: 21
Triple oxygen isotope compositions of globally distributed soil carbonates record widespread evaporation of soil waters Triple oxygen isotope compositions of globally distributed soil carbonates record widespread evaporation of soil waters
The stable isotopic composition of pedogenic carbonates is central to many studies of past climate and topography, providing a basis for our understanding of Earth's terrestrial history. A core assumption of many applications of oxygen isotope values (δ18O) of pedogenic carbonate is that they reflect the δ18O value of precipitation (rain/snow). This assumption is violated if soil...
Authors
Julia Kelson, Tyler E. Huth, Benjamin Passey, Naomi Levin, Sierra Petersen, Paolo Ballato, Emily Beverly, Daniel Breecker, Gregory Hoke, Adam Hudson, Ji Haoyuan, Alexis Licht, Jay Quade
Paleohydrologic history of pluvial lake San Agustin, New Mexico: Tracking changing effective moisture in southwest North America through the last glacial transition Paleohydrologic history of pluvial lake San Agustin, New Mexico: Tracking changing effective moisture in southwest North America through the last glacial transition
Paleoclimate records across the Intermountain West region of North America show significant regional variation in timing and magnitude of wet conditions that accompanied the last glacial-interglacial transition. To understand the climate controls on paleohydrologic change, well-dated records are needed across the region. The Plains of San Agustin (New Mexico, USA) is a closed-basin...
Authors
Adam Hudson, Jay Quade, Vance Holliday, Brendan Fenerty, Jordon Bright, Harrison Gray, Shannon Mahan
The Seamless Integrated Geologic Mapping (SIGMa) extension to the Geologic Map Schema (GeMS) The Seamless Integrated Geologic Mapping (SIGMa) extension to the Geologic Map Schema (GeMS)
Geologic maps are the fundamental building blocks of surface and subsurface three-dimensional geologic framework models of the Earth’s crust. However, as the production and availability of geologic map databases continues to increase, inconsistent data models and the lack of synthesized, national geologic map data at scales appropriate for informed decision making negatively affect the...
Authors
Kenzie Turner, Jeremiah Workman, Joseph Colgan, Amy Gilmer, Margaret Berry, Samuel Johnstone, Kathleen Warrell, Marieke Dechesne, D. Paco VanSistine, Ren Thompson, Adam Hudson, Kristine Zellman, Donald Sweetkind, Chester Ruleman
Central Andean (28–34°S) flood record 0–25 ka from Salinas del Bebedero, Argentina Central Andean (28–34°S) flood record 0–25 ka from Salinas del Bebedero, Argentina
The Salinas del Bebedero occupies an isolated basin in the foreland of central Argentina at 33°S and was flooded repeatedly over past 25 ka. Isotopic evidence demonstrates that this flooding was due to overflow of the nearby Río Desaguadero with waters derived from the distant (≥300 km) central Andes between 28–34°S. Stratigraphic and shoreline evidence shows that floods occurred most...
Authors
Jay Quade, Elad Dente, Allison Cartwright, Adam Hudson, Sebastian Jimenez, David McGee
Evidence for humans in North America during the Last Glacial Maximum Evidence for humans in North America during the Last Glacial Maximum
Archaeologists and researchers in allied fields have long sought to understand human colonization of North America. When, how, and from where did people migrate, and what were the consequences of their arrival for the established fauna and landscape are enduring questions. Here, we present evidence from excavated surfaces of in situ human footprints from White Sands National Park (New...
Authors
Matthew Bennett, David Bustos, Jeffrey Pigati, Kathleen Springer, Thomas. Urban, Vance Holliday, Sally Reynolds, Marcin Budka, Jeffrey Honke, Adam Hudson, Brendan Fenerty, Clare Connelly, Patrick J. Martinez, Vincent Santucci, Daniel Odess
Reconstructing paleohydrology in the northwest Great Basin since the last deglaciation using Paisley Caves fish remains (Oregon, U.S.A.) Reconstructing paleohydrology in the northwest Great Basin since the last deglaciation using Paisley Caves fish remains (Oregon, U.S.A.)
The arid northwest Great Basin underwent substantial hydroclimate changes in the past 15,000 years, greatly affecting its desert ecosystems and prehistoric people. There are conflicting interpretations of the timing of hydrologic changes in this region, requiring more records to resolve the dominant climatic drivers. The Paisley Caves archaeological site, located near former pluvial Lake...
Authors
Adam Hudson, Meaghan Emery-Wetherell, Patrick Lubinski, Virginia Butler, Deanna Grimstead, Dennis Jenkins
Non-USGS Publications**
Licht, A., Quade, J., Kowler, A., de Los Santos, M., Hudson, A., Schauer, A., Huntington, K., Copeland, P., Lawton, T., 2017. Impact of the North American monsoon on isotope paleoaltimeters: implications for the paleoaltimetry of the American Southwest. American Journal of Science 317, 1-33.
Conroy, J.L, Hudson, A.M., Overpeck, J.T., Liu K.-B., Wang L., 2017. The primacy of multidecadal to centennial variability of late-Holocene forced change of the Asian Monsoon on the southern Tibetan Plateau. Earth and Planetary Science Letters 458, 337-348.
Hudson, A.M., Olsen, J.W., Quade, J., Lei G., Huth, T.E., Zhang H., 2016. A regional record of expanded Holocene wetlands and prehistoric human occupation from paleowetland deposits of the western Yarlung Tsangpo valley, Tibetan Plateau. Quaternary Research 86, 13-33.
Perreault, C., Boulanger, M.T., Hudson, A.M., Rhode, D., Madsen, D.B., Olsen, J.W., Steffen, M.L., Quade, J., Glascock, M.D., Brantingham, P.J., 2016. Characterization of obsidian from the Tibetan Plateau by XRF and NAA. Journal of Archaeological Science: Reports 5, 392-399.
Phillips, F.M., Kelly, M.A., Hudson, A.M., Stone, J.O.H., Schaefer, J., Marrero, S., Fifield, K., Finkel, R., Lowell, T.V., 2016, CRONUS-Earth calibrations samples from the Huancané moraines, Quelccaya Ice Cap, Peru. Quaternary Geochronology, 31, 220-236.
Phillips, F.M., Argento, D.C., Balco, G., Caffee, M.W., Clem, J., Dunai, T.J., Finkel, R., Goehring, B., Gosse, J.C., Hudson, A.M., Jull, A.J.T., Kelly, M.A., Kurz, M., Lal, D., Lifton, N., Marrero, S.M., Nishiizumi, K., Reedy, R.C., Schaefer, J., Stone, J.O.H., Swanson, T., Zreda, M.G., 2016, The CRONUS-Earth project: a synthesis. Quaternary Geochronology 31, 119-154.
Phillips, F.M., Argento, D.C., Bourles, D.L., Caffee, M.W., Dunai, T.J., Goehring, B., Gosse, J.C., Hudson, A.M., Jull, A.J.T., Kelly, M., Lifton, N., Marrero, S.M., Nishiizumi, K., Reedy, R.C., Stone, J.O.H., 2016, Where now? Reflections on future directions for cosmogenic nuclide research from the CRONUS Projects. Quaternary Geochronology 31, 155-159.
Hudson, A.M., Quade, J., Huth, T.E., Lei G., Cheng H., Edwards, R.L., Olsen, J.W., and Zhang H., 2015, Lake level reconstruction for 12.8-2.3 ka for the Ngangla Ring Tso closed-basin lake system, southwest Tibetan Plateau. Quaternary Research 83, 66-79.
Huth, T.E., Hudson, A.M., Quade J., Lei G., and Zhang H., 2015, Paleohydrologic reconstruction of Holocene climate 11.5-5.0 ka based on shoreline dating and hydrologic budget modeling of Baqan Tso, southwestern Tibetan Plateau. Quaternary Research 83, 80-93.
Grimstead, D.N., Reynolds, A.C., Hudson, A.M., Akins, N.J., Betancourt, J.L., 2015, Low 87Sr/86Sr variance in turkey remains reveal domestication at Chaco Canyon. Journal of Archaeological Methods and Theory 23, 127-149
Hudson, A.M., Olsen, J.W., and Quade, J., 2014, Radiocarbon dating of interdune paleowetland deposits to constrain the age of mid- to Late Holocene microlithic artifacts from the Zhongba site, southwestern Qinghai-Tibet Plateau. Geoarchaeology 29, 33-46.
Huntington, K.W., Saylor, J., Quade, J., and Hudson, A.M., 2015, New constraints on Tibetan Plateau uplift from carbonate clumped isotope thermometry. Geological Society of America Bulletin 127, 181-199.
Kelly, M.A., Lowell, T.V., Applegate, P.J., Phillips, F.M., Schaefer, J.M., Smith, C.A., Kim, H., Leonard, K., and Hudson, A.M., 2015, A locally calibrated late glacial 10Be production rate from a low-latitude, high-altitude site in the Peruvian Andes: Quaternary Geochronology 26, 70-85
Hudson, A.M., and Quade, J., 2013, Long-term asymmetry in monsoon climate on the Tibetan Plateau: Geology 41, 351-354.
Kelly, M.A., Lowell, T.V., Applegate, P.J., Smith, C.A., Phillips, F.M., and Hudson, A.M., 2012, Late glacial fluctuations of Quelccaya Ice Cap, southeastern Peru: Geology 40, 991-994.
Pelletier, J.D., Engelder, T.M., Comeau, D., Hudson, A., Leclerc, M., Youberg, A., and Diniega, S., 2009. Tectonic and structural control of fluvial channel morphology in metamorphic core complexes: The example of the Catalina-Rincon core complex, Arizona, Geosphere, 5, 363-384.
**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.