Fig. 3: Distributions of dissolved εNd and εHf in coastal surface seawater off the Amazonian mangrove belt.
From: The Amazonian mangrove systems accumulate and release dissolved neodymium and hafnium to the oceans

Distinct εNd and εHf signatures in tropical western Atlantic seawater (orange) and coastal seawater off the Amazonian mangrove belt (blue) suggest strong exchange/interaction between continental margins and coastal seawater along the Amazonian mangrove coast. Figures were produced using Ocean Data View (https://odv.awi.de/)91.