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, CA, United States