Cinder cone volcanoes are steep, cone-shaped volcanoes built from lava fragments called 'cinders.' These volcanic cinders, also known as ' scoria ,' are glassy volcanic fragments that explode from the volcano and cool quickly, building up the sides of the cinder cone volcano fairly quickly.
Retired Marine Gen. James Mattis has been chosen to be secretary of defense by President-elect Donald Trump, according to people familiar with the decision. (Jenny Starrs/The Washington Post) By Dan Lamothe By Dan Lamothe December 1, 2016. President-elect Donald Trump said Thursday he has chosen retired Marine Gen. James N. Mattis, who has said that responding to âpolitical Islamâ is the major security issue facing the United States, to be secretary of defense.
In early 2010, Mattis was reported to be on the list of U.S. Marine generals being considered for selection to replace James T. Conway as the Commandant of the U.S. Marine Corps.