1. The Charlevoix Limestone is a mildly argillaceous limestone with interbedded coquina. 2. Stratigraphy starts with the Upper Devonian Famennian argillaceous sediments. 3. Vaygach Island is mainly formed of argillaceous slates, sandstone, and limestone. 4. Its ground is argillaceous and sandy by places. 5. Among other minerals found in them are biotite, argillaceous and is sometimes calcareous. 6. argillaceous which carry an implication of chemical composition.7. The copper deposits are usually surrounded by residue of argillaceous soil and sandy loam. 8. It may be fine and coarse-grained and contain siliceous or argillaceous components. 9. The forewings are pale tawny argillaceous , with three rust-brown costal spots. 10. Argillaceous materials may be compacted by mere pressure, like graphite and other scaly minerals.
