Marjorie S Schulz
Marjorie Schulz (Jorie) is a scientist emeritus with the Geology, Minerals, Energy, and Geophysics Science Center. Since joining the USGS in 1987, Jorie has worked in several USGS programs; Marine Geology, the National Research Program of Water Resources, and now GMEGSC.
Jorie does multidisciplinary work built on a foundation in geology. She now describes herself as a biogeochemist with a bit of soil science. Her work has included research on manganese deposits on the ocean floor, mineral weathering, soil development, and geochemistry. Jorie is currently studying the interaction of organic matter (carbon) with soil minerals to understand the processes that stabilize soil carbon.
Professional Experience
2018 - present, Research Physical Scientist, GMEG, USGS Menlo Park, CA
1991 - 2018, Research Hydrologist, WMA NRP, USGS, Menlo Park, CA
1987 - 1991, Geologist, GD Marine Geology, USGS Menlo Park, CA
Education and Certifications
M.S., Earth Science (Sedimentology), University of Missouri-Columbia, 1990
B.A., Geology, Knox College, Galesburg, Illinois, 1979
Affiliations and Memberships*
American Geophysical Union
Geological Society of America
Association for Women Geoscientists
Soil Science Society of America
Science and Products
Diffuse flow hydrothermal manganese mineralization along the active Mariana and southern Izu-Bonin arc system, western Pacific
Chemical weathering of a marine terrace chronosequence, Santa Cruz, California: Deciphering reaction rates from mineral depth profiles
Controls on soil pore water solutes: An approach for distinguishing between biogenic and lithogenic processes
Percolation and transport in a sandy soil under a natural hydraulic gradient
The ubiquitous nature of accessory calcite in granitoid rocks: Implications for weathering, solute evolution, and petrogenesis
Chemical weathering rates of a soil chronosequence on granitic alluvium: III. Hydrochemical evolution and contemporary solute fluxes and rates
Mineral precipitation and dissolution at two slag-disposal sites in northwestern Indiana, USA
Chemical weathering of the Panola Granite: Solute and regolith elemental fluxes and the weathering rate of biotite
Differential rates of feldspar weathering in granitic regoliths
Demonstration of significant abiotic iron isotope fractionation in nature
Chemical weathering in a tropical watershed, Luquillo Mountains, Puerto Rico III: Quartz dissolution rates
The effect of temperature on experimental and natural chemical weathering rates of granitoid rocks
Science and Products
Diffuse flow hydrothermal manganese mineralization along the active Mariana and southern Izu-Bonin arc system, western Pacific
Chemical weathering of a marine terrace chronosequence, Santa Cruz, California: Deciphering reaction rates from mineral depth profiles
Controls on soil pore water solutes: An approach for distinguishing between biogenic and lithogenic processes
Percolation and transport in a sandy soil under a natural hydraulic gradient
The ubiquitous nature of accessory calcite in granitoid rocks: Implications for weathering, solute evolution, and petrogenesis
Chemical weathering rates of a soil chronosequence on granitic alluvium: III. Hydrochemical evolution and contemporary solute fluxes and rates
Mineral precipitation and dissolution at two slag-disposal sites in northwestern Indiana, USA
Chemical weathering of the Panola Granite: Solute and regolith elemental fluxes and the weathering rate of biotite
Differential rates of feldspar weathering in granitic regoliths
Demonstration of significant abiotic iron isotope fractionation in nature
Chemical weathering in a tropical watershed, Luquillo Mountains, Puerto Rico III: Quartz dissolution rates
The effect of temperature on experimental and natural chemical weathering rates of granitoid rocks
*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