Geologic map and section of Little Girl Point, North Ironwood, and the northern part of Ironwood quadrangles, Michigan
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Open-File Report↗
Geology topics
Publications and source records attributed to H.A. Hubbard.
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Thurston Peninsula, although largely snow covered, exposes massive to foliated dioritic rock and schist exhibiting northeast-trending structures. One basalt pebble was found. The adjacent continental shelf is cut by submarine valleys. Peter I Island, a dissected basaltic volcano 250 miles to the northeast, was visited.