Paleomagnetism aids research on the Northern Hemisphere Glaciation
A small piece of Pacific Ocean floor, brought up 10 years ago by a Chinese research vessel from a depth of 16,500 feet and 2,700 miles from the San Francisco coast, has a large story to tell. Researchers say a one-fifth-inch slice of that marine ferromanganese nodule, which measured 1 by 1.4 inches before it […]