Discussion on classification and naming scheme of fine-grained sedimentary rocks

PENG Jun,ZENG Yao,YANG Yiming,YU Ledan,XU Tianyu

Fig. 3. Triangular diagram of the nomenclature of fine-grained sedimentary rocks. I—fine-grained felsic sedimentary rock; II—clay-bearing fine-grained felsic sedimentary rock; III—lime-bearing/dolomite-bearing fine-grained felsic sedimentary rock; IV—clayey fine-grained felsic sedimentary rock; V—limy/ dolomitic fine-grained felsic sedimentary rock; VI—pure clay rock; VII—lime-bearing/dolomite-bearing clay rock; VIII—felsic-bearing clay rock; IX—limy/ dolomitic clay rock; X—felsic clay rock; XI—pure carbonate rock; XII—felsic-bearing carbonate rock; XIII—clay-bearing carbonate rock; XIV—felsic carbonate rock; XV—clayey carbonate rock; XVI—felsic hybrid fine-grained sedimentary rock; XVII—clayey hybrid fine-grained sedimentary rock; XVIII—limy/dolomitic hybrid fine-grained sedimentary rock.