File:American Falls (Niagara Falls, northwest of Buffalo, New York State, USA) 7 (20098596116).jpg

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(view from the American side)

American Falls formed by water of the Niagara River cascading over an escarpment of Silurian-aged Lockport Group dolostones. This erosion-resistant stratigraphic interval forms an escarpment throughout much of eastern North American (America & Canada), from the Niagara area to Wisconsin. Dolostone is a crystalline-textured chemical sedimentary rock composed of dolomite (CaMg(CO3)2 - calcium magnesium carbonate). Most dolostones form by the diagenetic chemical addition of Mg to pre-existing limestones.
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Source American Falls (Niagara Falls, northwest of Buffalo, New York State, USA) 7
Author James St. John

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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/20098596116 (archive). It was reviewed on 28 January 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

28 January 2020

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Date/TimeThumbnailDimensionsUserComment
current02:08, 28 January 2020Thumbnail for version as of 02:08, 28 January 20202,685 × 1,752 (2.95 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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