Other speakers included Tony Runkel, lead geologist for the Minnesota Geological Survey, who shared how nitrogen in deep ...

ROCHESTER — Jeff Broberg’s knowledge of the geology of the Driftless region in Minnesota ran deep — literally. Broberg, 71, ...

The Journal of Geology, Vol. 33, No. 5 (Jul. - Aug., 1925), pp. 488-508 (21 pages) The Giants Range batholith is a great body of granite in northeastern Minnesota that lies between the Mesabi and ...

On Monday, May 19, at 10 a.m., Jennifer Anderson will present to the Learning Club at the Winona County History Center on “The History of How Humans Came to Understand Our Solar System” or “What ...

Other speakers included Tony Runkel, lead geologist for the Minnesota Geological Survey, who shared how nitrogen in deep springs may take several decades to reappear. He described how difficult it ...