Lithology 7. The naming of a lithology is based on the rock type. The three major rock types are sedimentary, igneous, metamorphic. Sedimentary rocks are further classified by whether they are siliciclastic or carbonate. Siliciclastic sedimentary rocks are then subcategorized based on their grain size distribution and the relative proportions of quartz, feldspar, and lithic (rock) fragments. Carbonate rocks are classified with the Dunham or Folk classification schemes according to the constituents of the carbonate rock. The name of an igneous rock requires information on crystal size and mineralogy. This classification can often be performed with a QAPF diagram. Metamorphic rock
Archives of Natural History Archives of Natural History The Archives of Natural History (formerly the "Journal of the Society for the Bibliography of Natural History") is a peer-reviewed academic journal and the official journal of the Society for the History of Natural History. It publishes papers on the history and bibliography of natural history in its broadest sense, and in all periods and all cultures. This includes botany, geology, palaeontology and zoology, the lives of naturalists, their publications, correspondence and collections, and the institutions and societies to which they belong. Bibliographical papers concerned with the study of rare books, manuscripts and illustrative material, and