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Contributing Institution
Maine Geological Survey
Document Type
Image
Identifier
10853
Description
Photo 7: View towards the northeast of an unusually large concentration of steeply dipping, northeast-striking diabase dikes along the Androscoggin River at Lisbon Falls. Diabase is the youngest rock type in the Lisbon Falls South quadrangle (about 200 million years old) and formed when fluid magma flowed rapidly up through cracks in the surrounding older rocks and then solidified. The locations of these dikes are shown on the map with red symbols. Outcrop in Androscoggin River below the dam, approximately 1140 feet northwest of the bridge at Lisbon Falls.
Project Name: Bedrock Geology 24k Lisbon Falls South
Exact Creation Date
7-23-2018
Location
Durham
Supplemental Rights
Credit must be given to the photographer and the Maine Geological Survey when this photo is displayed, reproduced, distributed and/or used in derivative works.
Keywords
bedrock geology; STATEMAP; Lisbon Falls South