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.
The Federal Reserve System was created by Congress in 1913. The responsibilities of the Federal Reserve include influencing the supply of money and credit; regulating and supervising financial institutions; serving as a banking and fiscal agent for the United States government; and supplying payments services to the public through depository institutions like banks, credit unions, and savings and loans.