The lowermost mantle structure beneath Alaska and Northern Pacific revealed by grid-search modeling of shear-wave triplications

Yuwei LI, Australian National University, Canberra, ACT, Australia, Meghan Samantha Miller, Australian National University, Research School of Earth Sciences, Canberra, Australia and Hrvoje Tkalcic, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia