Tag Archives: sedimentology

Extreme tides and Winter ice

Posted on February 5, 2015 by

Figure 1. Winter ice on the salt marshes of Minas Basin photographed from Wolfville, Nova Scotia, March 1, 2007. View to the North.  What is an estuary? An estuary is a bay with an open connection to the sea. Rivers … Continue reading →

Posted in climate change, General geoscience, Nova Scotia | Tagged , , , , , , , , , , , , , , , , , , | 1 Comment

Canadian Earth Science for @PMHarper 10 – a question of Iron

Posted on January 14, 2015 by

The preamble to this review series is here —– Halverson, G.P., F. Poitrasson, P.E. Hoffman, A. Nédélec, J.-M. Montel and J. Kirby, 2011, Fe-isotope and trace element geochemistry of the Neoproterozoic syn-glacial Rapitan iron formation. Earth and Planetary Science Letters, v. … Continue reading →

Posted in Canadian Earth Science for @PMHarper, climate change, General geoscience | Tagged , , , , , , , , , , , , | Leave a comment

Nova Scotia’s own Great Unconformity: my new banner photo for 2015

Posted on January 3, 2015 by

The Angular Unconformity (U) at Nova Scotia’s Rainy Cove, separating intensely folded and faulted early Carboniferous shales and sandstones of the Horton Group (labeled 1 below the unconformity) and gently inclined, undeformed sandstones and conglomerates of the Wolfville Formation (2) at … Continue reading →

Posted in General geoscience, Nova Scotia | Tagged , , , , , , , , , , , , , , | 1 Comment

#Katrina10. #Louisiana is still disappearing

Posted on October 27, 2014 by

I wrote this blog post in November of 2014. I am reblogging it today, on the 10th anniversary of Hurricane Katrina. Land loss map of South Louisiana. Image source here. Click on image to enlarge.  Is it the weather? No … Continue reading →

Posted in climate change, General geoscience, Natural hazards | Tagged , , , , , , , , , , , , , , , , , , , | 2 Comments

Canadian Earth Science for @PMHarper – 7: very old warm seas in what is now Nunavut (and why there is a Lead-Zinc ore body there)

Posted on August 16, 2014 by

The preamble to this review series is here. All reviews in this series are categorized as “Canadian Earth Science for @PMHarper” (see right hand column). ===== Turner, E.C., 2009, Mesoproterozoic carbonate systems in the Borden Basin, Nunavut. Canadian Journal of … Continue reading →

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The King of Sand: Paul Edwin Potter

Posted on November 26, 2013 by

I only ever truly loved two textbooks. I only ever loved these books because they were capable of captivating my attention, enhancing my understanding, and making me realize the depth of the subject. Most textbooks are poorly written encyclopedias that … Continue reading →

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Barrier Island Erosion / Sea Level Rise / Transgressive Anthropogenic Sequences /

Posted on February 20, 2013 by

Thanks to Twitter, I was made aware of a recent US report, entitled “Coastal impact, Adaptation and Vulnerabilities”. A summary of the report is here: http://www.usgs.gov/newsroom/article.asp?ID=3496#.USVxRFc-6OJ. What caught my attention on that page was the ‘before and after Hurricane Sandy’ … Continue reading →

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Wrong Question: can fracking be done safely?

Posted on February 16, 2013 by

I published this post in February 2013. I have continued to add material to it, so the most recent bits of info are at the top of the page: scroll down for the original, which hasn’t been changed. February 12, 2015 Dr. … Continue reading →

Posted in Energy, Nova Scotia | Tagged , , , , , , , | 1 Comment

Dear Mr. Carney

Posted on December 20, 2012 by

That must have been a lovely stay, a “short week” (I’m quoting the Globe and Mail) with your family near the small village of Cheverie on the shores of our beautiful Minas Basin. As a proud constituent of Mr. Brison, … Continue reading →

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The tidal landscape banner photo: Minas Basin, Nova Scotia, Canada

Posted on December 13, 2012 by

UPDATED December 29, 2014 This was my blog’s banner photo until January 1, 2015. What are you looking at? In a world of Google Earth where everyone has a GPS in their cell phone, I should start with the coordinates. … Continue reading →

Posted in General geoscience, Nova Scotia | Tagged , , , , , , , , , , | 2 Comments