Complex sentence: At the base of the Rove Formation, between the Rove and the underlying Gunflint Iron Formation, there is a lateral layer of shocked quartz and feldspar grains found within accretionary lapilli, accreted grain clusters and spherule masses.
Split into simpler sentences: At the base of the Rove Formation, between the Rove and the underlying Gunflint Iron Formation, there is a lateral layer. This layer contains shocked quartz and feldspar grains found within accretionary lapilli, accreted grain clusters and spherule masses.