Layers and layers of primarily felsic or intermediate-composition magma -- magma that is relatively rich in silica, sodium, aluminum, and potassium. These crystallize to form â¦ granitic rocks. These are the classic shapes of volcano that every school kid knows, known as stratovolcanoes or composite volcanoes.
The Battle of Bunker Hill took place on June 17, 1775, just a few months after the start of the American Revolutionary War. Boston was being besieged by thousands of American militia.
The Battle of Bunker Hill proved that the Americans could actually take on the strong, established British troops. The British did end up winning the battle, but ended up suâ¦ffering many casualties. After such a hard hit, the British had to rebuild, giving the Americans a time to retreat and recuperate.