News and Information
One of the best-loved views in Maine is overlooking Camden Harbor and Penobscot Bay from the top of Mount Battie. The Maine Geological Survey (MGS) is pleased to announce the release of the first modern map of the complex bedrock geology underlying that scenery. The Bedrock Geology of the Camden Quadrangle, Maine portrays an unusually large number of metamorphic rock formations for such a small area, including quartzite, conglomerate, schist, and marble or limestone ranging in age from Precambrian to Ordovician. The map pattern outlines folds and faults that indicate these rocks had a dynamic multi-stage geologic history at depth in the earth long before erosion had shaped the present serene landscape. In addition to the geologic map (Plate 1), there is a second sheet (Plate 2) with a series of structural cross sections, a narrative description of the structural geology, and an abundance of field photographs of the many rock types.
Prof. Philip Osberg of the University of Maine, noted authority on the New England Appalachians, is the first author of the new map. The new detailed 1:24,000 scale map was in progress at the time of his passing in 2016. Second author Dr. Henry Berry, a former Osberg student and then colleague with extensive field experience in the Camden area, completed this map as bedrock geologist at MGS.
Photo by Dave Dugdale from Wikimedia Commons. Used by permission under the Creative Commons Attribution-Share Alike 2.0 Generic license.
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