Maximum thickness of the Zabriskie locally exceeds 150 meters, but is generally 50 meters or less. Middle Cambrian Carrara Formation overlies the Zabriskie. The lithology and thickness of the Carrara is highly variable within the field area. The variable thickness is a consequence of the fault contact with the overlying Bonanza King Formation. Nowhere in the map area is the contact conformable, the variation in thickness due to faulting out of the upper Carrara.
Lithology varies both up section and along strike.
To the south, shale and siltstone predominate with lesser silty carbonate. Further north, the Carrara is comprised largely of silty limestone. Geologic map of the Clark Mountain fault complex. The contact between the Carrara and middle Cambrian Bonanza King is marked by a gently west-dipping fault. The Bonanza King forms prominent outcrops throughout the map area.