Past variability of the North American Monsoon: ultrahigh resolution records from the lower Gulf of California for the last 6 Ka

Juan Carlos Herguera1, Cinthya Nava Fernandez1, Gladys Bernal2 and Charles K Paull3, (1)CICESE Center for Scientific Research and Higher Education, Oceanography, Ensenada, Mexico, (2)Universidad Nacional de Colombia, Medellin, Ciencias del Mar, Medellin, Colombia, (3)Monterey Bay Aquarium Research Institute, Moss Landing, United States