United States invasion of Panama Reference: Wikipedia The United States Invasion of Panama, code-named Operation Just Cause, was the invasion of Panama by the United States in December 1989. It occurred during the administration of U.S. President George H. W. Bush, and ten years after the TorrijosâCarter Treaties were ratified to transfer control of the Panama Canal from the United States to Panama by January 1, 2000.
Ultramafic (also referred to as ultrabasic rocks, although the terms are not wholly equivalent) are igneous and meta-igneous rocks with a very low silica Mg O, high Fe O, low potassium, and are composed of usually greater than 90% mafic minerals (dark colored, high magnesium and iron content).
Rock B is a dark-colored crystalline rock that formed when a lava flow cooled and solidified quickly on the surface of Earth. Rock B is classified as an. (1) extrusive igneous rock with a coarse texture and felsic composition. (2) extrusive igneous rock with a fine texture and a mafic composition. (3) intrusive igneous rock with a coarse texture and a felsic composition. (4) intrusive igneous rock with a fine texture and a mafic composition. 13.