Our mineral supplies--Manganiferous iron ores
Explore the source record for details and available documents.
Bulletin↗
Geology topics
E.C. Harder
Publications and source records attributed to E.C. Harder.
Iron-depositing bacteria and their geologic relations
Explore the source record for details and available documents.
Professional Paper↗
Notes on the geology and iron cores of the Cuyuna district, Minnesota
No abstract available.
Minnesota↗
Notes on the occurrence of cinnabar in central western Arizona; Some occurrences of molybdenite in the Santa Rita and Patagonia Mountains, Arizona; Note on the occurrence of tungsten minerals near Calabasas, Arizona; Some chromite deposits in western and central California; An occurrence of monazite in northern Idaho; Platinum in southeastern Nevada; The Virginia rutile deposits; Notes on tungsten deposits near Deer Park, Washington; Survey publications on antimony, chromium, monazite, nickel, platinum, quicksilver, tin, tungsten, uranium, vanadium, etc.
No abstract available.
Bulletin↗
Some iron ores of western and central California; The Iron Age iron-ore deposit, near Dale, San Bernardino County, California; Iron ores near Dayton, Nevada; The Jauss iron mine, Dillsburg, Pennsylvania; Deposits of brown iron ore near Dillsburg, York County, Pennsylvania; Preliminary report on Pre-Cambrian geology and iron ores of Llano County, Texas; Survey publications on iron and manganese ores; Survey publications on Aluminum ores-bauxite, cryolite, etc.; Survey publications on asphalt
No abstract available.
Bulletin↗
Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Iron and Manganese
Explore the source record for details and available documents.
Bulletin↗