Developing A Theory Developing the theory [This Dynamic Earth, USGS] magnetic signatures This Dynamic Earth: The Story of Plate Tectonics magnetic anomalies either side of mid-ocean ridges paralleled by matching magnetized "stripes http://pubs.usgs.gov/gip/dynamic/developing.html https://pubs.usgs.gov/gip/dynamic/developing.html Developing the Theory “Developing the theory” “Developing the theory” The United States Geological Survey http://pubs.usgs.gov/gip/dynamic/developing.html The United States Geological Survey Magnetic striping and polar reversals U.S. Geological Survey pubs.usgs.gov/gip/dynamic/developing.html The United States Geological Survey Developing the theory paralleled by matching magnetized "stripes "Developing the theory [This Dynamic Earth, USGS]" This Dynamic Earth: The Story of Plate Tectonics This Dynamic Earth: The Story of Plate Tectonics This Dynamic Earth: The Story of Plate Tectonics The United States Geological Survey magnetic anomalies either side of mid-ocean ridges