Some of the critters went extinct (fossils!)

This province (Provincia Chubut) is super rich in life forms. But even more diverse than the organisms living today are those that have gone extinct. From east (near the coast) to west (near the Andes), sedimentary deposits are progressively older and have fossils from the Cenozoic (age of mammals), Mesozoic (age of reptiles, including dinosaurs), and Paleozoic (old life, including...
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Critterlandia

Peninsula Valdéz is at 42 degrees (Buenos Aires is at 34 degrees) so the days are longer - it's not dark until about 9). For those of you who know the Point Reyes Peninsula, where I've done geologic research, there are some surprising similarities. A narrow strip of land extends seaward and ends at coastal cliffs that are uplifted marine...
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Nature in Buenos Aires?

Buenos Aires located on southwest shore of Rio de la Plata estuary, the boundary between Argentina and Uruguay. To get to Patagonia, it's first necessary to go through Buenos Aires, a large bustling city where more than 1/3 of the country's 40 million people live. To get to Buenos Aires, we passed through Washington, D.C., now...
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Join me for a trip to the end of the world!

El fin del mundo—the end of the world! Only the southern tip of South America dares poke its head south into the 40-55° latitudes where the planet's strongest winds—the West Wind Drift—drive the planet's strongest current—the Circum-Antarctic Current. In this wind-swept part of the world, the stark yet stunning landscapes take their character from a base of amalgamated crustal blocks...
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About the Blogger

Karen (here with Mt. Shasta in background) is a geology professor emerita who aims to provide a "pocket geologist" for world travelers. Follow the blog to explore the landscapes of our planet and figure out what causes them to look the way they do.

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