Monday, 27 October 2014

Layering in the Lavant Gabbro Complex, Lanark County, Ontario

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The Lavant Gabbro Complex, which lies northwest of Perth,  is purported to be the largest mafic body in the Grenville Province of Ontario.  ...
Wednesday, 17 September 2014

Lake Iroquois and the Glaciofluvial Deltaic Deposit at Joes Lake, Lanark Highlands, Ontario

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About 18,000 years ago the Laurentide Ice Sheet reached its maximum thickness and  southward extent, covering Eastern Ontario with a thickne...
Wednesday, 20 August 2014

A Selection of Fossils from the March Formation in Lanark County, Ontario - Part 2

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My posting entitled A Selection of Fossils from the March Formation in Lanark County, Ontario  from  September 13, 2013 contained photograph...
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Thursday, 14 August 2014

Blasting of Outcrops Along Highway 15, including at Elgin

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Since the spring the Province of Ontario has been widening Highway 15 between Crosby and the turn off at Hwy 32 to Gananoque, and has been b...
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...