Final answer:
Horizontal beds deposited partly on landcross-bedded sedimentsmarine clays represent sedimentary rock formations that exhibit a combination of different depositional environments.
Step-by-step explanation:
Horizontal beds deposited partly on landcross-bedded sedimentsmarine clays represent sedimentary rock formations that exhibit a combination of different depositional environments.
The alternating medium- to coarse-grained sand and silty clay beds with root structures suggest a transition from terrestrial (land) to marine environments. The presence of cross-bedding, ripple marks, and shell fragments further indicate the action of sedimentary processes such as waves, currents, and biological activity.