Final answer:
Different types of sediment, such as sandstone, shale, limestone, and coal, were formed during the deposition of Pennsylvanian sequences of marine and non-marine strata.
Step-by-step explanation:
During the deposition of Pennsylvanian sequences of marine and non-marine strata, different types of sediment were formed. These sediment types can include sandstone, shale, limestone, and coal. Sandstone is formed from the accumulation and lithification of sand grains, while shale is composed of fine-grained mud or clay particles. Limestone is formed from the accumulation of shell fragments or the precipitation of calcium carbonate from seawater. Coal is formed from the accumulation and compaction of plant material in swampy environments.