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Elisabeth Kosters
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Tag Archives: geology
“Canadian company @Recon_Africa drills for oil in the Okavango delta watershed”
This post was originally published on August 5, 2021. It has been updated a few times. The updates that appeared here earlier have been moved to the end of this blog post. The original content has been extensively updated. On … Continue reading
Canadian Earth Science for @PMHarper 11 – Dino Hunt!
The preamble to this review series is here Posted today, February 12, the 206th anniversary of Charles Darwin’s birth and just in time for tomorrow, another #FossilFriday and another day to watch Dino Hunt! —– Bramble, K., M.E. Burns and … Continue reading
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
Posted in climate change, General geoscience, Minas Basin, Bay of Fundy, Nova Scotia
Tagged Atlantic, Canada, climate, Climate Change, coastal zone management, earth science, energy, environment, geology, geoscience, Ice Age, Minas Basin, Nova Scotia, oceanography, Quaternary, Science, Sea Level, sedimentology, tides
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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
Nova Scotia’s own Great Unconformity
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
Four Billion Years and Counting: Canada is as old as the Earth and this book tells all
Just published! 400-pages on Canada’s geologic heritage in both official languages for only $39.95! Order your English language copy here and your French copy here. The book’s website has tons of freely downloadable illustrations and other materials for … Continue reading
Posted in General geoscience, Geoheritage
Tagged Canada, earth science, energy, environment, evolution, extinction, geology, Ice Age, natural disaster, natural hazard
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#Women in (Earth)Science: Dr. Lui-Heung Chan (@FindingAda)
It’s 30 years ago this Fall that I registered for ‘Chemical Oceanography’, a graduate level class at Louisiana State University as part of my PhD program in Marine Sciences. The class was taught by Dr. Lui-Heung Chan, a quiet woman whom … Continue reading
Posted in General geoscience, Women in geoscience
Tagged climate, Climate Change, earth science, geology, geoscience, oceanography, Science, women
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And then there were two: Global #Geoparks in Canada
UPDATE: 19 NOVEMBER 2015. Great News!! Global Geoparks are now official UNESCO sites. “A what? ” “A Global Geopark” “Okay, I give up” Most of you have no idea what a Global Geopark is. That’s not surprising, because – according to my … Continue reading
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
Granites, Glaciers and the Ocean: a hike
We hiked, the other day – a well-known coastal trail, but new to me. So much still to discover here and it’s not like we haven’t been trying. The trail is in Crystal Crescent Beach Provincial Park and takes the … Continue reading
Posted in General geoscience, Geoheritage, Nova Scotia
Tagged Atlantic, batholith, Canada, continent break-up, earth science, geology, geoscience, granite, Ice Age, Nova Scotia, Quaternary, Sea Level
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The graphic artist M.C. Escher and his connections with geology
Left: Mobula Rays off Baja California by Eduardo Lopez Negrete / National Geographic. Right: “Two Fish” by M.C. Escher, 1941 from Escher official website The left-hand photograph circulated on Twitter a few weeks ago and someone commented that … Continue reading
Posted in Geoscience and Art
Tagged Art, Canada, crystallography, geology, M.C. Escher, mineralogy
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Canadian Earth Science for @PMHarper 6 – Would CO2 storage in deep saline aquifers carry an environmental risk for shallow aquifers?
The preamble to this series is here. All reviews are stored in the category “Canadian Earth Science for @PMHarper” (see right hand column). ===== Lemieux, J.-M., 2011, (Review:) The potential impact of underground geological storage of carbon dioxide in deep saline … Continue reading
Canada’s Geoheritage Surge: Geoscience Heritage, Geoparks, Geosites, Geotourism
UPDATE – OCTOBER 20 2014. It’s here! “Four Billion Years and Counting: Canada’s Geologic Heritage”. Offered to you by the Canadian Federation of Earth Sciences for CAD$39.95 only – order your copy from Nimbus — Left: A fossil tree at … Continue reading
Posted in General geoscience, Geoheritage
Tagged Canada, earth science, geoheritage, geology, geoscience, geosites, geotourism
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Canadian Earth Science for @PMHarper – 5: refining seismic risk assessment in Canada
The preamble to this series of reviews is here. All reviews can be found under the category “Canadian Earth Science for @PMHarper” Atkinson, G.M. and K. Goda, 2011, Effects of Seismicity Models and New Ground-Motion Prediction Equations on Seismic Hazard … Continue reading
A Tidal power lagoon in Nova Scotia’s Scott’s Bay?
Nova Scotia is where I live – a 700-odd km long NE-SW peninsula that more or less parallels the edge of the continent. What (almost) separates us from that continent is the Bay of Fundy, the Canadian extent of the Gulf … Continue reading
Posted in Energy, General geoscience, Minas Basin, Bay of Fundy, Nova Scotia
Tagged Atlantic, Canada, Climate Change, earth science, energy, environment, geology, geoscience, Nova Scotia, oceanography, Science, Sea Level, tides
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Canadian Earth Science for @PMHarper 4 – Ice ages and Klondike gold
The pre-amble to this series of reviews is here Froese, E.G., Zazula, G.D., Westgate, J.A., Preece, S.J., Sanborn, P.T., Reyes, A.V., Pearce, N.J.G., 2009, The Klondike goldfields and Pleistocene environments of Beringia. GSA Today, v. 19, no. 8, p. 4-10. … Continue reading
Blue Beach is not for sale
(Originally posted in March 2014. Updated a few times, last in May 2017) Left: Google Earth image showing location of Blue Beach – Avonport Station coastline. Right: aerial photo of the cliff (in the shade) and beach at low … Continue reading
Dreikanter: The biography of my favourite ventifact
(photo E. Kosters) This is my favourite ventifact, a real Dreikanter, a German word meaning ‘three sider’. This vernacular term became the formal label for a ventifact with three sides. My Dreikanter is a well-sorted pure quartz sandstone of a … Continue reading
Posted in General geoscience
Tagged Climate Change, dreikanter, earth science, geology, geoscience, Ice Age, Quaternary, Science, ventifact
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Rise to the challenge: #$5millionforscience
Two weeks ago the Canadian government announced the creation of a Federal office for Religious Freedom. It will cost Canadian tax payers $5 million per year. Many Canadians, including myself, do not believe this is a good money destination. Many … Continue reading
Posted in Uncategorized
Tagged earth science, geology, geoscience, research, science funding
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Wrong Question: can fracking be done safely?
August 2021 A lot has changed in 8 years. My position on hydraulic fracturing has changed too. I could delete this post, but I’m not going to do that. A lot has changed: the climate crisis has deepened and the … Continue reading
Posted in Energy, Nova Scotia
Tagged Atlantic, Canada, earth science, energy, environment, geology, geoscience, sedimentology
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Dear Mr. Carney
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
Posted in Nova Scotia
Tagged anhydrite, basalt, Blomidon, Carboniferous, Carney, Cheverie, continent break-up, extinction, geology, gypsum, Minas Basin, Parrsboro, sedimentology, tides
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