Composition of Aleutian forearc sediments

The ultimate composition of any sandstone is affected by a host of primary and secondary factors, including the lithologies present in source terranes, climate, depositional...各类砂岩的最终组分均受诸多一级与二级因素影响，其中包括物源区的岩性、气候以及沉积作用（原文未完整列出后续内容）。