The Neoproterozoic Noonday Dolomite (Death Valley, USA), a post-glacial cap carbonate, contains closely packed, meter-long, cm-wide, tube-like structures that define the vertical accretion direction.
A rich limestone and dolomite belt crosses York County within the Piedmont Lowlands Section of the Piedmont. The area is better known to farmers as the York Valley where U.S. Route 30 runs from ...