Andesite can be considered as the extrusive equivalent of plutonic diorite. Characteristic of subduction zones, andesite represents the dominant rock type in island arcs. The average composition of the continental crust is andesitic.
Who We Represent. The International Brotherhood of Teamsters (IBT) represents more than 1.4 million active members employed in a wide range of industries in the United States, Canada and Puerto Rico.he IBT negotiated the freight industry's first national agreement in 1964 and began its efforts to unionize the airline industry in 1966 with employees of Western Airlines. The International Brotherhood of Teamsters is the only union that represents every craft of workers in the airline industry.
The Shakers. The Shakers, or the United Society of Believers in Christ's Second Appearance, represent one of the most successful utopian communities in American history. Although their last remaining community currently numbers less than ten members, the Shakers have maintained a utopian presence in the United States for over two hundred years.