School starts on Monday, so Im doing as much riding as possible this weekend. Thanks to Bill and Ashland Mountain Adventures I dont have to ride to the top under my own power (I did that all this week, tired of it now)
On Wednesday Dr. Elliot’s geology 103 class went for a field trip. The main focus was on gathering fossil specimens from various locations. The fossils were all found in the Hornbrook formation, contained within Osberger Gulch Sandstone. The rocks were formed during the Cretaceous, which gives them and the fossils an age of approximately 95,000,000 years.
The interpretation is that the sediments were deposited from a beach or shallow marine environment. The abundance of the shells and the broken state of them suggests a high energy environment, so waves must have been present. By far the most common fossils (and original hard parts) were clams and mussels, but gastropods were also present. One lucky student even found a shrimp.
Dr. Elliot and 2 other students climbing a tilted bed of sandstone on the side of Interstate 5, just south of Ashland.
A nice collection taken inches away from a fault that dampened and softened the surrounding sandstone making it easier to collect
Identifying Fossils
One of the many local scorpions we found. We didn’t kill it in hopes that it would die in a depositional environment somewhere and make a nice fossil.
According to the signs in front of the lawn where all the flags are being planted, every white flag represents 5 dead Iraqis and every red flag represents 5 dead Americans. In total, the flags represent a total of 655,000 dead Iraqis and just under 4,000 dead Americans. Click on the images for a bigger view.
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