At the Caves of Cushendun, an arkosic conglomerate can be found.
Fossil from the collection of biology professor Lisa Williams at Northern Virginia Community College.
Chalk topped by basalt!
Outcrop from Cobham Bay. Contact between Eastover and Yorktown Formations undulates and is exposed at elevations between 11 and 13 feet.
44 49 46 N 111 25 51 W - Facing Southwest
Nice big crystal of potassium feldspar w/ exsolution lamellae.
Meteorite impactite layer? Volcaniclasitics?
YOU be the judge.
Flip side of this sample: gigapan.com/gigapans/190109
Oceanic crust looks like this after it has been sheared out and metamorphosed in a subduction zone. Part of the Franciscan Complex.
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