1592953144000 1312632483000 term-34956 1616541097528 1312632526000 1616290271818 adlib fitz-online adlib-term-34956 379c5f74-c3b0-3106-88de-474e87f68cb3 2 1 scope note Shale that is calcareous or dolomitic and is used with limestone in making portland cement. MH M.MT.AFU.AFU.AFU.ERE.ARI.AFU.AFU.ARI 1 code M.MT.AFU.AFU.AFU.ERE.ARI.AFU.AFU.ARI 1 marlstone reference term-34964 adlib-term-34964 a31c24c6-ebb7-33c8-bf04-618f85aa9cdc argillaceous rock marlstone term