• Choose your language

    English French German Italian Portuguese Russian Spanish

islacarmen-770The extreme southeast tip of Isla Carmen in the Gulf of California features a pristine, white-sand beach under protection within the Loreto Marine Park, Baja California Sur, Mexico. Sand deposited on this 150-m long beach is highly enriched (>80%) in coarse debris derived from wave-crushed rhodoliths (unattached coralline red algae). The Pleistocene limestone deposit in the foreground also is composed of massive rhodolith debris that includes rare whole rhodoliths (concentric growth of coralline red algae in spherical mode up to several centimeters in diameter). Both the limestone formation and the modern beach are underlain by basement rocks (Miocene andesite), which crop out as a protective headland at the far end of the beach. Living rhodoliths, naturally pink in color (Rhodophyta), form a large carbonate bank covering 194 hectares (480 acres) offshore this beach.

(Photograph by Markes E. Johnson, Department of Geosciences, Williams College, Williamstown, Massachusetts, U.S.A.).

Author Instructions

downloadDownload and consult the JCR Instructions For Authors before submission. Contributions must follow these specifications or will be returned for correction.

Submit Your Article

uploadElectronic submission of all contributions is mandatory.  Please use this online link to submit your article for peer review and possible publication in the JCR.

Manage Membership

go-rightClick here to join or renew your CERF-JCR membership.