Hike To Portland Point Quarry - Lansing, Ny

[aagreene]

Headed out to the Portland Point Limestone Quarry this past weekend. We parked at Teeter Road and hiked down Gulf Creek to check out the Limestone and Shale formations. It's a pretty cool walk with more than enough geological features and fossils to keep you busy. I've attached a few photos and some links to general site info.

Cornell University Webpage about Portland Point and its geology:

http://www.geo.cornell.edu/geology/classes.../gulf/index.htm

Google Map:

http://maps.google.com/maps?f=q&source...038452&z=15

Could use some help figuring out what these features are for sure.

quartzlike_intrusion.jpg : within some of the rock we broke apart there was an occurrence of this muscovite looking mineral/substance. We found this on the streambed of Gulf Creek.

colonial_coral.jpg : We found this also resting on the streambed. The only thing we could come up with was some sort of colonial coral - owing to what appeared to be individual cell structure.

dinosaur_egg.jpg : Occasionally along the walls of Gulf Creek we would find these structures. They were harder and rounder than the surrounding shale matrix. We jokingly called them dinosaur eggs.

[Pool Man]

I could be jumping the gun, but the "egg' could be a concretion. I know alot of guys on here make realy cool fossils out of them

I dont find any concretions here in Florida so I'm probably totaly wrong.

Dan

PS. Welcome to the forum!

[Guest solius symbiosus]

^^Yeah, it is most likely a concretion or a chert nodule. Can you get better pics of the other two? The coral appears to be a tabulate, but need better pics.

[aagreene]

^^Yeah, it is most likely a concretion or a chert nodule. Can you get better pics of the other two? The coral appears to be a tabulate, but need better pics.

Thanks for the reply. I checked my camera and these photos are about the best I can do. Let me know if they help.

Thanks,

Aaron

[mommabetts]

cool