You are browsing the archive for September 2011 - Page 3 of 3 - Mountain Beltway.
7 September 2011
Spotted this one Monday on the newly-rerouted section of the Billy Goat Trail’s Loop A, in Chesapeake and Ohio Canal National Historical Park. This graded bed was deposited as a turbidite in the Iapetus Ocean, sometime in the time-frame of 700 to 460 million years ago. It was metamorphosed 460 Ma during the late Ordovician Taconian Orogeny, and that’s probably when the little quartz veins formed, too. Click on it …
6 September 2011
At the Sheridan College natural history museum, this past summer.
It’s that kind of day. Grasshopper? Cricket? Katydid? Some kind of orthopteran, anyhow. Not a full adult, to judge by the lack of well-formed wings. And, here’s a yellow crab spider:
Some kind of caterpillar I spotted on the Billy Goat Trail yesterday – can’t find a perfect match for it to identify the species. Anyone know? Chime in. UPDATE – My colleague Victor Zabielski pinned it as Schizura concinna, the redhumped caterpillar. Thanks, Victor!
2 September 2011
The Friday fold is a gorgeously deformed “duplex structure” in Mesozoic limestones of southwestern Montana.