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You are browsing the archive for November 2015 - Page 2 of 2 - Mountain Beltway.

6 November 2015

“Making North America,” episode 2: Life

The PBS series NOVA has a new three-part series called “Making North America” that premiered last week. Hosted by the director of the Smithsonian Institution’s National Museum of Natural History, Kirk Johnson, the series will explore the tectonic assembly of terranes that resulted in the bedrock of the continent, the panoply of diverse creatures that have dwelled here in the past, and the human prehistory of our continent. I was …

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Friday fold: ptygmatic in northern India

Another image from northern India’s Himalayas, courtesy of Martin Schmidt: The “intestine-like” aspect of this fold has a descriptive adjective in geology: ptygmatic. Gorgeous! Thanks for sharing, Martin. Happy Friday!

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2 November 2015

Norman Bowen’s papers

I got a special treat the week before last – one of my students this semester works at the Geophysical Laboratory of the Carnegie Institution in Washington, DC. During our unit on igneous rocks, he was prompted by the “Bowen’s reaction series” discussion to let me know that Norman Bowen’s notebooks were still extant at the Carnegie. He invited me down to check them out, and I readily accepted. Here’s …

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