Figure 1
From: Enhanced Arctic Amplification Began at the Mid-Brunhes Event ~400,000 years ago
Map of Arctic Ocean showing Arctic core sites. Red circles are from current study covering the interval 50 ka–1.5 Ma, black circles are sites covering the last 50 ka from ref.6. See Appendix 1 for core site data. Basemap from National Oceanic and Atmospheric Administration National Centers for Environmental Information (NCEI); http://noaa.maps.arcgis.com/home/webmap/viewer.html?webmap=94f14eb0995e4bfc9d2439fc868345da 30.
