Near the end of the hike, we crossed the Malibu Bowl fault. A fault exists where rock units have broken (fractured) and the rocks have slid past one another along the fracture. When this happens, the rocks in some places along the fracture are broken into small fragments creating a rock called a breccia, like the one shown in this photo. In this area the rocks on the east side of the fault are the Sespe Formation and those on the west side are the Monterey Formation (see next photo).
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