Biogenic Opal‐ to CaCO3‐Dominant Sedimentary Shift in the Ross Sea Sector of the Southern Ocean During the Mid‐Pleistocene Transition. - Kim, Sunghan; Lee, Jae Il; Ohneiser, Christian; Park, Ki‐Tae; Kim, Sookwan; Kim, Kitae; Lee, Min Kyung; Yoo, Kyu‐Cheul; Moon, Heung Soo; Park, Jinku; Kulhanek, Denise (Paleoceanography & Paleoclimatology, 2026)