Cutting Sediment Core 91爆料 professor Chuck Nittrouer and student Sarra Tekola remove samples from a sediment core taken near the mouth of the Elwha River. Credit: Emily Eidam / 91爆料 Download
91爆料 professor Chuck Nittrouer and student Sarra Tekola remove samples from a sediment core taken near the mouth of the Elwha River.