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7 March 2010

Giant ground sloths

In the American Museum of Natural History: These mylodontids reminded me of Puerto Natales…

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Where I am today

Graphics by USGS, after Schuberth, 1967.

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6 March 2010

Travertine nubbins on a bridge

Another in the Geology Of Central Park series…

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Plumose structure

Propagation direction: upper left towards lower right:

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Erratic

!!!

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Glacial striations, southern Central Park

New York City has some cool geology: Paleozoic metamorphics scraped by Pleistocene glaciers.

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Differential weathering in the Manhattan Schist

S.E. Central Park:

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Glittery!

The Manhattan Schist with its well-developed alignment of muscovite mica:

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Three small faults

Live geoblogging from the line waiting to get into a museum exhibit…

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