Tag Archives: sedimentology

Extreme tides and Winter ice

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

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

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

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

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

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#Katrina10. #Louisiana is still disappearing

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

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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)

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

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 /

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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