Monday, 28 April 2014

Peristerite and its Connection With Lanark County

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Peristerite, from peristeria, a pigeon, the colours resembling a pigeon’s neck. Specimens of Peristerite, a variety of plagioclase feldspa...
Friday, 7 March 2014

My Hunt for Sir William Logan’s Specimens of Protichnites

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It is amazing how time flies by.   Since September I’ve been meaning to visit the Canadian Museum of Nature’s Research and Collections Facil...
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Wednesday, 29 January 2014

Cylindrical Structures in Potsdam Group Sandstone in Eastern Ontario

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Cylindrical sandstone structures that cut across the bedding in Potsdam Group sandstones in Eastern Ontario at locations north of Kingston h...
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Friday, 29 November 2013

Additional Geological Field Trip Guides for Eastern Ontario That Are Available Online

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My last blog posting reported on a new geological field trip guide that is a 40 kilometer bike tour that starts in Perth.   There are a numb...
Wednesday, 6 November 2013

Murphys Point Bike Loop: A Geological Interpretation, by Bradley S. Wilson

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This fall saw the release of a new geological field trip guide that covers part of Lanark County. Entitled  Murphys Point Bike Loop: A Geol...
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Friday, 13 September 2013

A Selection of Fossils from the March Formation in Lanark County, Ontario

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A year ago I collected a number of specimens of fossils, and photographs of fossils, from a quarry in Lanark County about a five minute driv...