Question

argillaceous material contain

Answer 1

The Argillaceous materials contain containing particles that are silt- or clay-sized, less than 0.625 mm in size. Most have a high clay-mineral content, and many contain a sufficient percentage of organic material to be considered a source rock for hydrocarbon. .The argillaceous rocks (lutites) include shales, argillites, siltstones, and mudstones. They are the most abundant sedimentary rock type, varying according to different estimates from 44 to 56% of the total sedimentary rock column.The term argillite is used for rocks which are more indurated than claystone or shale but not metamorphosed to slate.