Kirk is from Mason, Michigan. Intraclasts are also visible to the left and the right of the bivalve. The intraclasts are larger than the other grains and well rounded. Many shell fragments can been seen through out the photograph, evidence of a high-energy depositional environment. This photograph shows three large, well-rounded intraclasts.
Shell fragments are also apparent throughout the thin section.
Most of these shell fragments are bivalves, replaced by calcite. Several other smaller intraclasts are visible, which are also well rounded. The intraclasts are also evidence of a high-energy depositional environment. This photograph shows a wide range of bivalve shell fragments, replaced with calcite. Two intraclasts are also included in the photograph.