Slate Islands (Ontario)
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The Slate Islands are a small archipelago in Lake Superior, Ontario, Canada, about 12 kilometres south of the town of Terrace Bay. The island group, consisting of 15 islands in total, was created by a
Slate Islands Ontario LC08 L1TP 024026 20190421 20190421 01 RT
McGreevy Harbour, Slate Islands, was once used as a staging area for logs during the logging boom of the 1930s
Saxifraga paniculata, growing at Williams Point in the Slate Islands
Approximately 9 m (30 ft) tall shatter cone located in McGreevy Harbour, Slate Islands
Decorah crater
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The Decorah crater, also called the Decorah impact structure, is a possible impact crater located on the east side of the city of Decorah in Iowa, United States. It is thought to have been caused by a
Slate Islands (Ontario)
…of several Middle Ordovician meteors that fell roughly simultaneously 469 million years ago, part of a proposed Ordovician meteor event, including the Decorah crater in Iowa, the Ames crater in Oklahoma, and the Rock Elm crater in Wisconsin. The Slate Islands Provincial Park was established in 1985 to protect the…
Aerial photo of Decorah and the extent of the crater
North American Middle Ordovician impact craters, which may be part of the Ordovician meteor event. Key: 1: Ames crater, 2: Decorah crater, 3: Rock Elm Disturbance, 4: Slate Islands crater.
Decorah crater 2
Pingualuit aerial 2007