The presence of ice-rafted debris (IRD) in middle Eocene ocean sediments has previously been demonstrated, but it has been unclear whether the source of IRD was land-based glacial ice or sea ice, a distinction with important climate implications.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/evidence-middle-eocene-arctic-sea-ice-diatoms-and-ice-rafted-debris
[2] http://admin.indiaenvironmentportal.org.in/category/author/catherine-e-stickley
[3] http://admin.indiaenvironmentportal.org.in/category/author/kristen-st-john
[4] http://admin.indiaenvironmentportal.org.in/category/author/naln-ko-et-al
[5] http://admin.indiaenvironmentportal.org.in/category/journal/nature
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oceans-and-seas
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/arctic-ocean
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sedimentation
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atmosphere-and-ozone-layer
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-science