Final answer:
The reference material does not mention Henry Moore or the specific work that preserved sedimentary geological deposits; therefore, a confident answer cannot be provided.
Step-by-step explanation:
The student is inquiring about a specific work by Henry Moore where he preserved the sedimentary geological deposit in the stone he carved. Unfortunately, the reference material provided does not mention Henry Moore or a specific work by him that would correspond with the preservation of a geological deposit.
Given that the provided reference material does not contain information on Henry Moore's specific work in question, I am unable to provide a confident answer concerning which piece preserved the sedimentary geological deposit. My recommendation for the student seeking information about Henry Moore's works would be to conduct more targeted research on Moore's sculptures or consult authoritative resources on his body of work, which may provide insight into the specific piece in question.