In order to claim a find on this earth cache, you must send the answers to the following questions to me within 3 days. If I do not recieve your answers within 3 days I will delete your Found It with no further warning.
DO NOT post any pictures of the site itself.
Questions
1. Type in GC7MC55 Bouma Cycle Number 3.
2. How many cycles do you count?
3. In one of the cycles, how many major layers are there?
4. What size rocks (average) are the rocks in the Conglomerate layer?
5. What angle do you Estimate is this cycle tilted? (using straight across the trail as 0 degrees)
We found this nice little example relaxing on this loop trail
The Bouma Cycle is named after "Arnold H. Bouma 1932-2011"
He described a set of sedimentary structure in Turbidite beds deposited at the bottoms of lakes, oceans and rivers. The processes are as the material is carried down a slope or river the heaver flows allows for movement of larger material or rocks to move, as it slows it gets deposited. In slower movements other finer grained sands/mudstones/rocks get deposited then even finer silts, then mud at the end.
In a cycle you will see another set of bigger rocks or a conglomerate layer start again this cycle sometimes repeats itself over and over. This is a very big change and you're able to see this at some distance. The different layers at this site are well marked by their various colors and your able to see some very dark layers in-between the lighter more tan/sand colored ones. What do you suppose these very dark layers are?
Another mover of the mountains in this area has been the "Coast Range Orogeny" (Orogeny refers to a force/event movement as a result of Tectonic Plates).
The following Material were used for Reference:
- UCSB Geology Department
- U.S. Department of the Interior, Professional papers and Geological surveys
- Paleo.bris.ac.uk research
- California Institute of Technology
- California Division of Mines and Geology
- Wikipedia