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.
Federal Reserve Act (1913) This act created a central banking system, consisting of twelve regional banks governed by the Federal Reserve Board. It was an attempt to provide the United States with a sound yet flexible currency. The Board it created still plays a vital role in the American economy today.