Pine Marten, Adirondacks

Hello everyone, I’m back in my office after 7 weeks away. I had some great travels this summer, to Turkey, Montana, and New England… and great geological photos to share from each of those locations. I’m going to start off with something non-geological, though: something furry and alive! That, my friends, is a pine marten, [...]

Folds of New York

Thursday is ‘fold day’ here at Mountain Beltway. Let’s take a look at some folds I saw last weekend in New York City. We’ll start with a bunch seen in the Manhattan Schist in Central Park. Here’s an example of the foliation in the schist. It’s got finer-grained regions and coarser, schistier regions with big [...]

Rusty weathering rind

On a granite block

Giant ground sloths

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

Where I am today

Graphics by USGS, after Schuberth, 1967.

Travertine nubbins on a bridge

Another in the Geology Of Central Park series…

Plumose structure

Propagation direction: upper left towards lower right:

Erratic

!!!

Glacial striations, southern Central Park

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

Differential weathering in the Manhattan Schist

S.E. Central Park:

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