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Elisabeth Kosters
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Tag Archives: geoscience
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
A #tsunami is really a tidal wave, except it isn’t
Katsushika Hokusai, Great Wave off Kanagawa. Image from Wikimedia. Original in the Metropolitan Museum of Art, New York, USA This week marks the 10-year anniversary of the Great Sumatra earthquake which triggered the devastating Indian Ocean Tsunami that killed a quarter million people. … Continue reading
Canadian Earth Science for @PMHarper 9 – measuring the thickness of polar sea ice through time
The preamble to this reviews series, categorized as “Canadian Earth Science for @PMHarper”, is here. — de Vernal, A., R. Gersonde, H. Goosse, M.-S. Seidenkrantz, and E.W. Wolff, 2013, Sea ice in the paleoclimate system: the challenge of reconstructing sea … Continue reading
Canadian Earth Science for @PMHarper 8 – Earth in the firing range
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). — Spray, J.G. and L.M. Thompson, 2008, Constraints on central uplift structure from the Manicouagan … Continue reading
#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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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
Canadian Earth Science for @PMHarper – 1: The end of the last Ice Age off Newfoundland
The preamble to this review series is here. Roger, J., Saint-Ange, F., Lajeunesse, P., Duchesne, M.J., and St-Onge, G., 2013, Late Quaternary glacial history and meltwater discharges along the Northeastern Newfoundland shelf. Canadian Journal of Earth Sciences, v. 50, p. … 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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The 2nd Sichuan earthquake in 5 years / why we need more art in science communication
Yesterday, on April 20, 2013, an earthquake struck in China’s Sichuan province. Because this is the blog of an earth scientist, I’ll give you the link to the USGS’s report: http://earthquake.usgs.gov/earthquakes/eventpage/usb000gcdd#summary . This write-up is excellent and that’s how we … Continue reading
Posted in General geoscience, Geoscience and Art, Natural hazards
Tagged Ai Wei Wei, Art, China, earthquake, geoscience, natural disaster, natural hazard
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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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The tidal landscape banner photo: Minas Basin, Nova Scotia, Canada
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
Rachel Carson – as relevant today as she was 50 years ago
There is a new biography of Rachel Carson, the author of “Silent Spring”, which was published 50 years ago this year. The biography is by William Souder and is entitled “On a Farther Shore: The Life and Legacy of Rachel … Continue reading
A day to celebrate women in Science: Kiek Jelgersma
October 16 is Ada Lovelace day, a day to celebrate inspiring women in science. What a great opportunity to write about two women geoscientists who I admired and knew. First I will write about Dr. Saskia Jelgersma, better known as … Continue reading
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