Rock Units. A lithostratigraphic unit is defined as a body of sedimentary, extrusive igneous, metasedimentary, or metavolcanic strata which is distinguished on the basis of lithologic characteristics and stratigraphic position (position in the rock sequence).The smallest lithostratigraphic rock unit is the bed.edimentary environments that started out side-by-side will end up overlapping one another over time due to sea level change (transgressions and regressions). The result is a vertical sequence of beds. The vertical sequence of facies mirrors the original lateral distribution of sedimentary environments.
The US Supreme Court, as an institution, is head of the Judicial Branch. The Chief Justice of the United States presides over the Court and is the head of the judiciary during his (or her) tenure, but the Associate Justices don't really play a leadership role.
Front row (left to right): Clarence Thomas, Antonin Scalia, Chief Justice John G. Roberts, Anthony Kennedy, and Ruth Bader Ginsburg. The Supreme Court of the United States is the highest judicial body in the United States. Its membership consists of the Chief Justice of the United States and eight associate justices. The justices are nominated by the President of the United States and appointed after confirmation by the United States Senate. Justices of the Supreme Court have life tenure and receive a salary which is set at $255,500 per year for the chief justice and at $244,400 per year for each associate justice as of 2014.