Thursday, 17 July 2014

An Outcrop that Records the Eruption of Pillowed Basaltic Lava

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In an earlier posting I listed various field trip guides, including A. Davidson’s 1995 field trip guidebook on the Grenville Province of the...
Thursday, 22 May 2014

Andrew Dickson, a Founder of Pakenham, Sheriff of Bathurst District, and Geologist

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“With the early progress and development of Geology of Canada, the name of Andrew Dickson will always be honorably associated.” (The Canadi...
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...