The Gabbros And Associated Hornblende Rocks Occurring In The Neighborhood Of Baltimore, Md... - George Huntington Williams - Bog

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The Gabbros And Associated Hornblende Rocks Occurring In The Neighborhood Of Baltimore, Md; Issue 28 Of Bulletin; Geological Survey (U.S.).; Issue 28 Of U.S. Geological Survey Bulletin
George Huntington Williams
Govt. Print. Off., 1886
Science; Earth Sciences; Geology; Igneous rocks; Petrology; Rocks, Igneous; Science / Earth Sciences / Geology