Figure 6. In places where water frequently polishes the ledge, bedding is well exposed. Here thin brown quartzite alternates with thicker gray schist. Graded beds are well preserved, recognized by beds with sharp bases (near the tip of the pencil) which gradually include more and more schist until the top of the layer is all schist. The quartzite was deposited as a quartz sand while the schist was deposited as a fine-grained mud. The top of these beds is toward the top of the image.
Last updated on October 6, 2005