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Hannah G.D. Tompkins (Former Employee)

Science and Products

Insights into glendonite formation from the upper Oligocene Sagavanirktok Formation, North Slope, Alaska Insights into glendonite formation from the upper Oligocene Sagavanirktok Formation, North Slope, Alaska

The type locality for the upper Oligocene Nuwok Member of the Sagavanirktok Formation (Carter Creek, North Slope, Alaska, USA) contains abundant occurrence of glendonite, a pseudomorph after the calcium carbonate mineral ikaite, which typically forms in the shallow subsurface of cold marine sediments. The region during the time of Nuwok Member deposition was located at a high latitude...
Authors
John W. Counts, Madeleine Vickers, Martha Stokes, Whittney Spivey, Kristina Frank Gardner, Jean Self-Trail, Jared T. Gooley, Ryan J. McAleer, Aaron M. Jubb, David W. Houseknecht, Richard O. Lease, Neil Patrick Griffis, Martin S. Vickers, Kasia Sliwinska, Hannah Gail Dooley Tompkins, Adam M. Hudson
By
Ecosystems Mission Area, Energy Resources Program, Alaska Science Center, Florence Bascom Geoscience Center, Geology, Energy & Minerals Science Center, Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center, Denver Radiogenic Isotope Lab

Non-USGS Publications**

Tompkins, H. G., Zieman, L. J., Ibanez-Mejia, M., and Tissot, F. L., 2020, Zirconium stable isotope analysis of zircon by MC-ICP-MS: Methods and application to evaluating intra-crystalline zonation in a zircon megacryst: Journal of Analytical Atomic Spectrometry, 35(6), p. 1167-1186. DOI:10.1039/C9JA00315K

**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.

USGS

Making water tracing rock solid: national, geologic map-based visualization of USGS water strontium isotope data

Nationwide data source for USGS water strontium isotopes for hydrologic, ecologic, and forensic studies
By
Community for Data Integration (CDI)
Making water tracing rock solid: national, geologic map-based visualization of USGS water strontium isotope data

Making water tracing rock solid: national, geologic map-based visualization of USGS water strontium isotope data

Nationwide data source for USGS water strontium isotopes for hydrologic, ecologic, and forensic studies
Learn More

Environmental Strontium Isotope Web Viewer Environmental Strontium Isotope Web Viewer

The Environmental Strontium Isotope Web Map is an interactive mapping application for displaying strontium isotope data in environmental materials (for example, waters) in geographic relation to underlying bedrock geology that drives the isotope composition. Together, these data form the basis for isotopic fingerprinting applications in geologic, hydrologic, ecologic, and forensic science.
By
National Cooperative Geologic Mapping Program, National Water Quality Program, Colorado Water Science Center, Geosciences and Environmental Change Science Center, Denver Radiogenic Isotope Lab

Science and Products

Insights into glendonite formation from the upper Oligocene Sagavanirktok Formation, North Slope, Alaska Insights into glendonite formation from the upper Oligocene Sagavanirktok Formation, North Slope, Alaska

The type locality for the upper Oligocene Nuwok Member of the Sagavanirktok Formation (Carter Creek, North Slope, Alaska, USA) contains abundant occurrence of glendonite, a pseudomorph after the calcium carbonate mineral ikaite, which typically forms in the shallow subsurface of cold marine sediments. The region during the time of Nuwok Member deposition was located at a high latitude...
Authors
John W. Counts, Madeleine Vickers, Martha Stokes, Whittney Spivey, Kristina Frank Gardner, Jean Self-Trail, Jared T. Gooley, Ryan J. McAleer, Aaron M. Jubb, David W. Houseknecht, Richard O. Lease, Neil Patrick Griffis, Martin S. Vickers, Kasia Sliwinska, Hannah Gail Dooley Tompkins, Adam M. Hudson
By
Ecosystems Mission Area, Energy Resources Program, Alaska Science Center, Florence Bascom Geoscience Center, Geology, Energy & Minerals Science Center, Geology, Geophysics, and Geochemistry Science Center, Geosciences and Environmental Change Science Center, Denver Radiogenic Isotope Lab

Non-USGS Publications**

Tompkins, H. G., Zieman, L. J., Ibanez-Mejia, M., and Tissot, F. L., 2020, Zirconium stable isotope analysis of zircon by MC-ICP-MS: Methods and application to evaluating intra-crystalline zonation in a zircon megacryst: Journal of Analytical Atomic Spectrometry, 35(6), p. 1167-1186. DOI:10.1039/C9JA00315K

**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.

USGS

Making water tracing rock solid: national, geologic map-based visualization of USGS water strontium isotope data

Nationwide data source for USGS water strontium isotopes for hydrologic, ecologic, and forensic studies
By
Community for Data Integration (CDI)
Making water tracing rock solid: national, geologic map-based visualization of USGS water strontium isotope data

Making water tracing rock solid: national, geologic map-based visualization of USGS water strontium isotope data

Nationwide data source for USGS water strontium isotopes for hydrologic, ecologic, and forensic studies
Learn More

Environmental Strontium Isotope Web Viewer Environmental Strontium Isotope Web Viewer

The Environmental Strontium Isotope Web Map is an interactive mapping application for displaying strontium isotope data in environmental materials (for example, waters) in geographic relation to underlying bedrock geology that drives the isotope composition. Together, these data form the basis for isotopic fingerprinting applications in geologic, hydrologic, ecologic, and forensic science.
By
National Cooperative Geologic Mapping Program, National Water Quality Program, Colorado Water Science Center, Geosciences and Environmental Change Science Center, Denver Radiogenic Isotope Lab
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