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
Pith and substance circumscribed. Cases relating to Pith and Substance.- Citation in the matter of M/s. Sky Gourmet Catering Private Limited V/s Tax Authorities (Commercial Tax and Service Tax) in the matter of Writ Appeal No. 671 to 726 of 2011 (T-Res) decided on 18th day of April, 2011 by Hon'ble High Court of Karnataka at Bangalore may also be seen. Pith and substance Pith and substance is a legal doctrine in Canadian constitutional interpretation used to determine under which head of power a given piece of legislation falls. The doctrine is primarily used when a law is challenged on the basis that