Lebanon County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 133,568. Its county seat is Lebanon. The county was formed from portions of Dauphin and Lancaster counties in 1813, with minor boundary revisions in 1814 and 1821. Lebanon County comprises the Lebanon, PA Metropolitan Statistical Area, which is also included in the Harrisburg-York-Lebanon, PA Combined Statistical Area.
sedimentary rocks change with heat and pressure and become metamorphic rock then rocks melt into magma.
   Sedimentary rocks can also be formed when minerals are dissolved in  water and are then resolidified. This type of sedimentary rock is  called a chemical sedimentary rock. Oolitic limestone is a good  example of this type of sedimentary rock.1 person found this useful.gneous rocks are made from magma. Magma is made of melted rocks.  (When it is underground it is called magma, when it erupts on the  surface of the earth, it is called lava â¦ . It's the same material  though.) When magma/lava cools, it forms igneous rocks.