more field trip shots!

I had to upload these photos in two batches. Here's some of my favorites from the second batch. Taken in the Niagara River region and also Silurian-Devonian (we left behind the Ordovician). You may want to refer to this site (http://www.uwgb.edu/dutchs/PETROLGY/Leaverite-SedFeat.HTM) if you have basic questions about sedimentary structures.

Photos from the Niagara Gorge trail at Artpark in Lewiston, NY:

First, we have a shot of some load casts.




Next, on the now-vertical "under"side of a boulder (which was facing outward at the very edge of a steep dropoff on the edge of the trail, wheeeee) is a whole buttload of arthrophycus trace fossils. (That's worm burrows, that is.)




While we're at it, have some ripple marks too.




Uh... nature iz pretty. :B




Queenston-Lewiston bridge.




Orthocone nautiloid with some of the siphuncle preserved.




Some shots further up the river, not at Artpark:

Dr. Carlton Brett (who lead the field trip) is in this shot (taken near the power outlook on the NY side of the river) for scale. I like the cross-bedding. :)




Can you spot the stromatolites in the rocks? There's also thrombolites in there but I'm very un-knoledgeable about those. :|




Churning rapids in the whirlpool of the Niagara River. Turns out the whirlpool is there because there was a filled-in gorge that existed previously, leaving softer material that was more easily eroded, forming a kink in the Niagara River.




And finally, we have a black squirrel, because squirrels are infinitely excellent. Woot!





All of these photos may be seen at a larger size by following the links to my flickr photostream. :)