Rubel, Daniel N.||Frost, Stanley H., 1939-||Goldich, Samuel S., 1909-
M.S. (Master of Science)
Department of Geology
Iron Mountain is located in the west-central part of the Independence area which lies just north of the northeast corner of Yellowstone National Park. Petrographic studies show that the lava flows of Iron Mountain are trachybasalts. Mineralogical variations indicate that the trachybasalts consist of separate flows. These can be divided into two distinct groups; one which is plagioclase rich, and the other which is olivine and pyroxene rich. The trachybasalts flows may have originated by: 1) the tapping and eruption of different portions of a differentiated magma chamber from a single vent, or 2) the eruption of a differentiated magma chamber that was tapped by several separate conduits.
Di Paolo, William D., "The petrography of the Iron Mountain trachybasalts, Iron Mountain, Montana" (1971). Graduate Research Theses & Dissertations. 6068.
Northern Illinois University
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