The protolith may be a sedimentary rock, an igneous rock or another older metamorphic rock. Metamorphic rocks make up a large part of the Earth 's crust and are classified by texture and by chemical and mineral assemblage (metamorphic facies).
The Federal Reserve System (also known as the Federal Reserve, and informally as the Fed) is the central banking system of the United States.he chairman of the Federal reserve bank shall report to the Board of Governors of the Federal Reserve System any such undue use of bank credit by any member bank, together with his recommendation.
Noun. 1. Federal Reserve-the central bank of the United States; incorporates 12 Federal Reserve branch banks and all national banks and state-chartered commercial banks and some trust companies; the Fed seeks to control the United States economy by raising and lowering short-term interest rates and the money supply.