Paleomagnetic Records from the Gulf of Alaska

Recent observations from high-resolution sedimentary and archeomagnetic records indicate that the paleo-geomagnetic field displays variance on sub-millennial and even sub-centennial time scales. The majority of these observations are concentrated in the Atlantic sector of the Northern Hemisphere, while the under-sampled Pacific is thought to have subdued geomagnetic variability. To better understand this spatial variability, our lab is developing well-dated, high-resolution paleomagnetic records on sediment cores collected from the fjords, continental shelf, slope, and rise of the Gulf of Alaska during R/V Maurice Ewing Cruise EW0408.