Tuesday, 22 October 2019

Tubular Structures in the Ediacaran Drummond Sequence in Lanark County, Ontario

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In my March blog postings I reported finding the Ediacaran fossil Aspidella together with  Ediacaran fronds and various microbial mat struct...

A Concentric Circular Structure in Rocks of the Ottawa Embayment that are Mapped as the Ordovician Gull River Formation

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In my March, 2019 blog postings I reported finding the concentric, circular, Ediacaran fossil Aspidella together with  Ediacaran fronds an...
Friday, 16 August 2019

The K-Bentonite Occurrence at Tenth Line Rd. and St. Joseph Blvd, Ottawa and Historical References to Bentonite Clay

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Since my July 28, 2019 and August 7, 2019 blog postings I’ve continued to find articles referring to K-Bentonite (altered volcanic ash) in E...
Friday, 9 August 2019

Mark Your Calendars for a Tour of the Tatlock Quarry on Saturday, August 24th

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Below is an advertisement from this week’s  Perth Courier for the tour of OMYA’s Tatlock Quarry on August 24th  from 10 am to 2pm, rain or s...
Wednesday, 7 August 2019

Porphyritic Volcanic Rock - When the Comment is More Interesting than the Original Post

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Henri Lessard, who writes the  Géo-Outaouais blog covering the geology of the Outaouais and Ottawa area, left me a very interesting com...
1 comment:
Sunday, 28 July 2019

Phenocrysts in a Bed of Porphyritic Volcanic Rock in the Ordovician Sedimentary Rocks of the Ottawa Embayment, Eastern Ontario

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In the sedimentary rocks of the Ottawa Embayment I may have found a thin bed of a porphyritic volcanic rock.    Finding evidence...
Thursday, 18 July 2019

Dr. Arthur Wade’s (1924) Contribution to the Discovery of Precambrian Fossils in Australia

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"Our most interesting find consisted of a variety of fossil remains in these siliceous flags and shales. These consisted of the tracks ...