What kind of rock is this? What unit does it belong to? 

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A small diagram showing the stratigraphic relationships of different rock units within the field site. The top unit is the Loch Raven Schist. Under the Loch Raven Schist is the Cockeysville Marble. Underneath the Cockeysville Marble is the Setters Formation. Under the Setters Formation is the Baltimore Gneiss.
An image taken from the side of the outcrop showing the layers dipping towards the right side of the image. The outcrop is covered in moss and small trees. No freshly exposed surfaces are seen.
Close up of a rock that has fallen from the outcrop with a chapstick container sitting on top of it. The layers are thin, millimeter-scale and slightly wavy. Unable to see mineral detail.
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