James Madison University
James Madison University: Clastic Sedimentary Rock Classification
An upper-level explanation of clastic sedimentary rock classification. Charts, diagrams, and review questions are included. Be sure to click on the PDF Clastic Identification key.
Australian Museum
Australian Museum: Sedimentary Processes
Everything you need to know about sedimentary rocks and the processes by which they are created, including weathering, soils, environments, and classification.