TY - GEN AU - Wu,Wenbo AU - Ni,Sidao AU - Irving,Jessica C E TI - Inferring Earth's discontinuous chemical layering from the 660-kilometer boundary topography SN - 1095-9203 PY - 0000///022019/// PB - Science (New York, N.Y.) N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1126/science.aav0822 ER -