Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

CNEXO World-Wide Compilation of Published, Multi Component/Analyses of Ferromanganese Concretions

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 27, 2026 | Last Modified: 1978-01-20T00:00:00.000+00:00
The Centre National Pour l'Exploitation des Oceans (CNEXO) ferromanganese nodule analysis files consist of geochemical data from published reports pertaining to oceanic ferromanganese deposits, including Russian, since 1891. Data were compiled under the direction of Professor Jean-Marie Monget of Ecoles de Mines, Paris through 1976 and contain data for nearly 200 marine core, dredge, and grab samples. Data include method of analysis, oxide/item/element concentrations, location, water depth, sample lithology, and bibliographic references. The CNEXO data are also available as part of the NOAA and MMS marine minerals database and are offered on the NOAA and MMS Marine Minerals CD-ROM data set released in October of 1992. The CNEXO data are also available for direct download from NCEI's web server.

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov