Dr John Barron is an internationally renowned expert in marine diatom taxonomy, biostratigraphy, palaeoceanography and palaeoclimatology. He graduated from the University of California, Los Angeles (UCLA) in 1969 with a BS Geology degree and completed his doctoral research in Geology at UCLA, as a student of Helen N. Tappan, in 1974. John took up a position as a research geologist/micropalaeontologist for the United States Geological Survey (USGS) in Menlo Park, California in 1974 where he remains today as a Supervisory Research Geologist within the Volcano Science Center. Notably, he is the Survey’s internationally recognized expert on the climate of the...

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