Suzanne Nicholson, USGS, collecting soil at one of the sites in New Jersey, on the coast of the Atlantic Ocean just south of Atlantic City.
Laurel G. Woodruff
Laurel Woodruff is a Research Geologist with the USGS Geology, Energy & Minerals (GEM) Science Center in Reston, VA.
Science and Products
Synthesis of the Tectonic, Magmatic, and Metallogenic Evolution of the Midcontinent Rift System
Application of the National-Scale Soil Geochemical and Mineralogical Data for the Conterminous U.S.
Database of mineral deposits related to the Mesoproterozoic Midcontinent Rift System (MRS) in the northern United States and northern Ontario, Canada
The Midcontinent Rift System (MRS) of North America is one of the world’s largest continental rifts and has an age of 1.1 Ga (giga-annum). The MRS hosts a diverse suite of magmatic and hydrothermal mineral deposits in the Lake Superior region where rift rocks are exposed at or near the surface. As part of the construction of a database summarizing information on mineral deposits in the MRS, data f
Critical mineral deposits of the United States (ver. 2.0, April 2024)
GIS, supplemental data table, and references for focus areas of potential domestic resources of critical minerals and related commodities in the United States and Puerto Rico (ver. 2.0, April 2024)
GIS, supplemental data table, and references for focus areas of potential domestic resources of 13 critical minerals in the United States and Puerto Rico - antimony, barite, beryllium, chromium, fluorspar, hafnium, helium, magnesium, manganese, potash, ur
Till geochemistry from rotosonic cores in Minnesota, USA
Density and magnetic susceptibility measurements on Precambrian rocks in the Iron Mountain-Menominee region, Michigan-Wisconsin
Geochemical characterization of solid media from three watersheds that transect the basal contact of the Duluth Complex, northeastern Minnesota
GIS and Data Tables for Focus Areas for Potential Domestic Nonfuel Sources of Rare Earth Elements
Oxide and Cation Compositions of Olivine Grains from Drill Core in the Duluth Complex, Minnesota
Oxide and Cation Compositions of Feldspar Grains from Drill Core of the Duluth Complex, Minnesota
Oxide and Cation Compositions of Pyroxene Grains from Drill Core of the Duluth Complex, Minnesota
Major, Minor, and Trace Element Compositions of Bulk Drill Core Samples from the Duluth Complex, Minnesota
![Image: The Effects of Human Activity versus Natural Processes on U.S. Soil](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/Woodruff2.jpg?itok=_aovHB2I)
Suzanne Nicholson, USGS, collecting soil at one of the sites in New Jersey, on the coast of the Atlantic Ocean just south of Atlantic City.
Revisiting geophysical interpretations of the Midcontinent Rift below Lake Superior— Insights from GLIMPCE seismic-reflection line C
Exploring the geology of the Midcontinent Rift under western Lake Superior using a preliminary velocity model of seismic line GLIMPCE C
National map of focus areas for potential critical mineral resources in the United States
Focus areas for data acquisition for potential domestic resources of 13 critical minerals in the conterminous United States and Puerto Rico — Antimony, barite, beryllium, chromium, fluorspar, hafnium, helium, magnesium, manganese, potash, uranium, vanadiu
Mineral deposits of the Mesoproterozoic Midcontinent Rift System in the Lake Superior region – Metallogeny of the prolifically mineralized Keweenawan LIP
Integrated geophysical analysis provides an alternate interpretation of the northern margin of the North American Midcontinent Rift System, Central Lake Superior
Mineral deposits of the Mesoproterozoic Midcontinent Rift system in the Lake Superior region – A space and time classification
Mineral resource database for deposits related to the Mesoproterozoic Midcontinent Rift System, United States and Canada
Assessing the influence of natural copper-nickel-bearing bedrocks of the Duluth Complex on water quality in Minnesota, 2013–15
Focus areas for data acquisition for potential domestic resources of 11 critical minerals in the conterminous United States, Hawaii, and Puerto Rico—Aluminum, cobalt, graphite, lithium, niobium, platinum-group elements, rare earth elements, tantalum, tin,
Soil mineralogy and geochemistry along a north-south transect in Alaska and the relation to source-rock terrane
Geochemical and mineralogical maps, with interpretation, for soils of the conterminous United States
Science and Products
Synthesis of the Tectonic, Magmatic, and Metallogenic Evolution of the Midcontinent Rift System
Application of the National-Scale Soil Geochemical and Mineralogical Data for the Conterminous U.S.
Database of mineral deposits related to the Mesoproterozoic Midcontinent Rift System (MRS) in the northern United States and northern Ontario, Canada
The Midcontinent Rift System (MRS) of North America is one of the world’s largest continental rifts and has an age of 1.1 Ga (giga-annum). The MRS hosts a diverse suite of magmatic and hydrothermal mineral deposits in the Lake Superior region where rift rocks are exposed at or near the surface. As part of the construction of a database summarizing information on mineral deposits in the MRS, data f
Critical mineral deposits of the United States (ver. 2.0, April 2024)
GIS, supplemental data table, and references for focus areas of potential domestic resources of critical minerals and related commodities in the United States and Puerto Rico (ver. 2.0, April 2024)
GIS, supplemental data table, and references for focus areas of potential domestic resources of 13 critical minerals in the United States and Puerto Rico - antimony, barite, beryllium, chromium, fluorspar, hafnium, helium, magnesium, manganese, potash, ur
Till geochemistry from rotosonic cores in Minnesota, USA
Density and magnetic susceptibility measurements on Precambrian rocks in the Iron Mountain-Menominee region, Michigan-Wisconsin
Geochemical characterization of solid media from three watersheds that transect the basal contact of the Duluth Complex, northeastern Minnesota
GIS and Data Tables for Focus Areas for Potential Domestic Nonfuel Sources of Rare Earth Elements
Oxide and Cation Compositions of Olivine Grains from Drill Core in the Duluth Complex, Minnesota
Oxide and Cation Compositions of Feldspar Grains from Drill Core of the Duluth Complex, Minnesota
Oxide and Cation Compositions of Pyroxene Grains from Drill Core of the Duluth Complex, Minnesota
Major, Minor, and Trace Element Compositions of Bulk Drill Core Samples from the Duluth Complex, Minnesota
![Image: The Effects of Human Activity versus Natural Processes on U.S. Soil](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/Woodruff2.jpg?itok=_aovHB2I)
Suzanne Nicholson, USGS, collecting soil at one of the sites in New Jersey, on the coast of the Atlantic Ocean just south of Atlantic City.
Suzanne Nicholson, USGS, collecting soil at one of the sites in New Jersey, on the coast of the Atlantic Ocean just south of Atlantic City.