Echinoderm microfossil dating
You can record other information, if you have time and knowledge, such as the formation/member name, city, county, etc. There are lots of individual techniques, but I use the garden hose on a soft setting. Stir it with your hand to get the process started and let it sit and soak to dissolve the mud (mud is water soluble) and clay (clay breaks down in water over time).At home, store the bags until you have time to enjoy extracting the microfossils. The amount of time you want to let it soak depends on the type of clay you have.
There are other items you can use, but I like cardboard box tops because they will help the drying process and give you an easy way to roll the dried material into sifters Allow the material to sit and dry for a couple of days. Dry is better for me because microfossils love to stick to wet surfaces, and I don't want to loose these guys.When I retired I cleaned out my classroom and found a collection of 25 glass vials from Ward Scientific containing sand samples with microfossils. I immediately thought they would make a perfect addition to the sand website.The only problem was there were no labels for the samples, only identification numbers.After putting the clay in the bag, if you don't have a pen with you, leave the bag on the spot where you collected it and come back with the pen.In this way, you won't wind up back at the car with a bunch of bags and not know which spots they came from. Label the bag with the name of the site, the date, a description of the exact spot and a number you assign to the spot.The Bellbrook sample did not come from the Ward's collection.
The sample was contributed by a geology student from University of Dayton, Dayton, Ohio.
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Since the sample was collected from a creek and not an actual outcrop, it is impossible to name the formation.
Since the fossils are so fragmented, it is impossible for me to accurately identify or date them.
Collect clay from the surface of an area that has not been covered up by falling rocks and debris of the road cut. You can sometimes tell this if the clay is clearly in layers.