Rock Blog #9

Stratigraphy at Spooners Cove

What caused the erosion is the movement of the tectonic plates at the San Andreas Fault. They push the horizontal rock upwards, creating these slanted outcroppings. Then, due to weathering, the texture became smooth, and water caused divots and valleys in the rocks. 

The layers of the rock seem to be similar. This could hint that they are made out of the same type of rock. But there are many different layers that have different colors. This could also give off that maybe there are different rocks between the layers. These layers were created when sediment was eroded and pushed down by pressure, creating these horizontal layers. 

I believe that it took millions of years for these layers to form. Since there are so many individual layers and variations.











Location: Montaña de Oro State Park, 3550 Pecho Valley Rd, Los Osos, CA 93402, USA

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