California Syncline


California Syncline
Fitzgerald Marine Preserve, San Mateo County, CA
A syncline is a fold with younger layers closer to the center of the structure.  Synclines are typically a downward fold (synform), termed a synformal syncline (i.e. a trough), but synclines that point upwards can be found when strata have been overturned and folded (an antiformal syncline).

California Syncline
Syncline in the lower parking lot of Calico Ghost Town;
the ductile folding is at the base and the brittle is above.
Calico Ghost Town near Barstow, California.


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