https://www.pmel.noaa.gov/foci/visualizations/images/iceCores/pages/floe3_mc064.html
floe3_mc064
https://www.pmel.noaa.gov/foci/visualizations/images/iceCores/pages/floe3_mc063.html
floe3_mc063
https://www.pmel.noaa.gov/foci/visualizations/images/iceCores/pages/floe3_mc043.html
floe3_mc043